java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 20:56:44,021 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 20:56:44,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 20:56:44,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 20:56:44,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 20:56:44,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 20:56:44,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 20:56:44,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 20:56:44,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 20:56:44,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 20:56:44,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 20:56:44,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 20:56:44,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 20:56:44,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 20:56:44,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 20:56:44,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 20:56:44,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 20:56:44,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 20:56:44,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 20:56:44,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 20:56:44,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 20:56:44,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 20:56:44,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 20:56:44,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 20:56:44,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 20:56:44,083 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 20:56:44,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 20:56:44,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 20:56:44,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 20:56:44,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 20:56:44,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 20:56:44,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 20:56:44,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 20:56:44,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 20:56:44,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 20:56:44,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 20:56:44,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 20:56:44,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 20:56:44,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 20:56:44,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 20:56:44,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 20:56:44,100 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 20:56:44,121 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 20:56:44,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 20:56:44,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 20:56:44,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 20:56:44,123 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 20:56:44,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 20:56:44,123 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 20:56:44,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 20:56:44,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 20:56:44,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 20:56:44,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 20:56:44,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 20:56:44,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 20:56:44,125 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 20:56:44,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 20:56:44,125 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 20:56:44,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 20:56:44,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 20:56:44,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 20:56:44,126 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 20:56:44,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 20:56:44,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:56:44,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 20:56:44,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 20:56:44,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 20:56:44,127 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 20:56:44,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 20:56:44,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 20:56:44,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 20:56:44,396 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 20:56:44,409 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 20:56:44,412 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 20:56:44,413 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 20:56:44,414 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 20:56:44,414 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2019-10-13 20:56:44,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eff98229e/694c0794e1e84d1eb5f6b6f30c05d6be/FLAGd4d0016cf [2019-10-13 20:56:45,249 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 20:56:45,250 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2019-10-13 20:56:45,294 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eff98229e/694c0794e1e84d1eb5f6b6f30c05d6be/FLAGd4d0016cf [2019-10-13 20:56:45,810 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eff98229e/694c0794e1e84d1eb5f6b6f30c05d6be [2019-10-13 20:56:45,819 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 20:56:45,821 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 20:56:45,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 20:56:45,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 20:56:45,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 20:56:45,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:56:45" (1/1) ... [2019-10-13 20:56:45,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce60929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:45, skipping insertion in model container [2019-10-13 20:56:45,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:56:45" (1/1) ... [2019-10-13 20:56:45,836 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 20:56:45,929 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 20:56:47,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:56:47,274 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 20:56:47,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:56:47,702 INFO L192 MainTranslator]: Completed translation [2019-10-13 20:56:47,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:47 WrapperNode [2019-10-13 20:56:47,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 20:56:47,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 20:56:47,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 20:56:47,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 20:56:47,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:47" (1/1) ... [2019-10-13 20:56:47,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:47" (1/1) ... [2019-10-13 20:56:47,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:47" (1/1) ... [2019-10-13 20:56:47,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:47" (1/1) ... [2019-10-13 20:56:47,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:47" (1/1) ... [2019-10-13 20:56:47,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:47" (1/1) ... [2019-10-13 20:56:47,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:47" (1/1) ... [2019-10-13 20:56:48,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 20:56:48,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 20:56:48,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 20:56:48,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 20:56:48,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:56:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 20:56:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 20:56:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 20:56:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 20:56:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2019-10-13 20:56:48,100 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-13 20:56:48,100 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-13 20:56:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2019-10-13 20:56:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-13 20:56:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_and_test [2019-10-13 20:56:48,102 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2019-10-13 20:56:48,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 20:56:48,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 20:56:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-13 20:56:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-13 20:56:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 20:56:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 20:56:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 20:56:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 20:56:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 20:56:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-10-13 20:56:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-10-13 20:56:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 20:56:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 20:56:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 20:56:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2019-10-13 20:56:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2019-10-13 20:56:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2019-10-13 20:56:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2019-10-13 20:56:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-10-13 20:56:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-10-13 20:56:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 20:56:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 20:56:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_write [2019-10-13 20:56:48,111 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_get_drvdata [2019-10-13 20:56:48,112 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_set_drvdata [2019-10-13 20:56:48,112 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_pause_rx [2019-10-13 20:56:48,112 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_continue_rx [2019-10-13 20:56:48,112 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_fasync [2019-10-13 20:56:48,113 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_locate [2019-10-13 20:56:48,113 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_open [2019-10-13 20:56:48,113 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_free [2019-10-13 20:56:48,113 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_release [2019-10-13 20:56:48,113 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_fetch_byte [2019-10-13 20:56:48,114 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_read [2019-10-13 20:56:48,114 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_write [2019-10-13 20:56:48,114 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_poll [2019-10-13 20:56:48,114 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_interrupt [2019-10-13 20:56:48,115 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_connect [2019-10-13 20:56:48,115 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_reconnect [2019-10-13 20:56:48,115 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_hangup [2019-10-13 20:56:48,115 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_disconnect [2019-10-13 20:56:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_drv_init [2019-10-13 20:56:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_drv_exit [2019-10-13 20:56:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serio_driver_1 [2019-10-13 20:56:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2019-10-13 20:56:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 20:56:48,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2019-10-13 20:56:48,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2019-10-13 20:56:48,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-13 20:56:48,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2019-10-13 20:56:48,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_9 [2019-10-13 20:56:48,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_10 [2019-10-13 20:56:48,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-13 20:56:48,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_12 [2019-10-13 20:56:48,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2019-10-13 20:56:48,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_14 [2019-10-13 20:56:48,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2019-10-13 20:56:48,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_16 [2019-10-13 20:56:48,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_17 [2019-10-13 20:56:48,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_18 [2019-10-13 20:56:48,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_19 [2019-10-13 20:56:48,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_deregister_20 [2019-10-13 20:56:48,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_21 [2019-10-13 20:56:48,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_22 [2019-10-13 20:56:48,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___serio_register_driver_23 [2019-10-13 20:56:48,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serio_unregister_driver_24 [2019-10-13 20:56:48,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 20:56:48,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2019-10-13 20:56:48,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 20:56:48,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 20:56:48,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 20:56:48,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 20:56:48,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-13 20:56:48,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-13 20:56:48,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-13 20:56:48,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-13 20:56:48,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-13 20:56:48,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-13 20:56:48,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-13 20:56:48,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-13 20:56:48,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-13 20:56:48,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-13 20:56:48,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-13 20:56:48,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-13 20:56:48,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-13 20:56:48,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-13 20:56:48,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-13 20:56:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-13 20:56:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-13 20:56:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-13 20:56:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2019-10-13 20:56:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2019-10-13 20:56:48,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2019-10-13 20:56:48,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2019-10-13 20:56:48,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-13 20:56:48,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-13 20:56:48,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-13 20:56:48,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-13 20:56:48,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-13 20:56:48,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-13 20:56:48,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-13 20:56:48,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2019-10-13 20:56:48,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-13 20:56:48,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-13 20:56:48,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-13 20:56:48,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2019-10-13 20:56:48,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_serio_raw_mutex [2019-10-13 20:56:48,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_serio_raw_mutex [2019-10-13 20:56:48,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_serio_raw_mutex [2019-10-13 20:56:48,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_serio_raw_mutex [2019-10-13 20:56:48,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_serio_raw_mutex [2019-10-13 20:56:48,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_serio_raw_mutex [2019-10-13 20:56:48,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_serio_raw_mutex [2019-10-13 20:56:48,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_serio_raw_mutex [2019-10-13 20:56:48,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_serio_raw_mutex [2019-10-13 20:56:48,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_serio_raw_mutex [2019-10-13 20:56:48,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 20:56:48,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-10-13 20:56:48,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-13 20:56:48,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-13 20:56:48,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2019-10-13 20:56:48,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-10-13 20:56:48,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2019-10-13 20:56:48,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __serio_register_driver [2019-10-13 20:56:48,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-13 20:56:48,151 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-13 20:56:48,155 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-10-13 20:56:48,156 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-10-13 20:56:48,156 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-13 20:56:48,157 INFO L138 BoogieDeclarations]: Found implementation of procedure fasync_helper [2019-10-13 20:56:48,157 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-13 20:56:48,157 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device [2019-10-13 20:56:48,158 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2019-10-13 20:56:48,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 20:56:48,166 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-13 20:56:48,166 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2019-10-13 20:56:48,166 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2019-10-13 20:56:48,166 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-13 20:56:48,167 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-10-13 20:56:48,167 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_killable [2019-10-13 20:56:48,167 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-13 20:56:48,169 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 20:56:48,170 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2019-10-13 20:56:48,170 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2019-10-13 20:56:48,170 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2019-10-13 20:56:48,170 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-13 20:56:48,170 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_close [2019-10-13 20:56:48,171 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_open [2019-10-13 20:56:48,171 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_unregister_driver [2019-10-13 20:56:48,171 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-13 20:56:48,171 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 20:56:48,172 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 20:56:48,172 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 20:56:48,172 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 20:56:48,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 20:56:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 20:56:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-10-13 20:56:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2019-10-13 20:56:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-10-13 20:56:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-13 20:56:48,174 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-13 20:56:48,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 20:56:48,174 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-13 20:56:48,174 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-13 20:56:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 20:56:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2019-10-13 20:56:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-13 20:56:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2019-10-13 20:56:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 20:56:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-13 20:56:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2019-10-13 20:56:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-13 20:56:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 20:56:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_and_test [2019-10-13 20:56:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2019-10-13 20:56:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-13 20:56:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_10 [2019-10-13 20:56:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 20:56:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2019-10-13 20:56:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-13 20:56:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-13 20:56:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2019-10-13 20:56:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2019-10-13 20:56:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_17 [2019-10-13 20:56:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_22 [2019-10-13 20:56:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 20:56:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 20:56:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 20:56:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 20:56:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 20:56:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 20:56:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 20:56:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 20:56:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 20:56:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 20:56:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-13 20:56:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-13 20:56:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 20:56:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 20:56:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 20:56:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 20:56:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 20:56:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-10-13 20:56:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_12 [2019-10-13 20:56:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_14 [2019-10-13 20:56:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_killable [2019-10-13 20:56:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_16 [2019-10-13 20:56:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-13 20:56:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2019-10-13 20:56:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2019-10-13 20:56:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_9 [2019-10-13 20:56:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_21 [2019-10-13 20:56:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-13 20:56:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-13 20:56:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-13 20:56:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-13 20:56:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-13 20:56:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-13 20:56:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-13 20:56:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2019-10-13 20:56:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_serio_raw_mutex [2019-10-13 20:56:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_serio_raw_mutex [2019-10-13 20:56:48,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_serio_raw_mutex [2019-10-13 20:56:48,183 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-10-13 20:56:48,183 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-10-13 20:56:48,183 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-10-13 20:56:48,183 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-10-13 20:56:48,183 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-13 20:56:48,183 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-13 20:56:48,183 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2019-10-13 20:56:48,183 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-13 20:56:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-13 20:56:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 20:56:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 20:56:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 20:56:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 20:56:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serio_driver_1 [2019-10-13 20:56:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2019-10-13 20:56:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2019-10-13 20:56:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2019-10-13 20:56:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 20:56:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2019-10-13 20:56:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 20:56:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2019-10-13 20:56:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-10-13 20:56:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 20:56:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure fasync_helper [2019-10-13 20:56:48,186 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2019-10-13 20:56:48,186 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-13 20:56:48,186 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-10-13 20:56:48,186 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 20:56:48,186 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 20:56:48,187 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 20:56:48,191 INFO L130 BoogieDeclarations]: Found specification of procedure get_device [2019-10-13 20:56:48,191 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2019-10-13 20:56:48,191 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-13 20:56:48,191 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-13 20:56:48,191 INFO L130 BoogieDeclarations]: Found specification of procedure serio_open [2019-10-13 20:56:48,192 INFO L130 BoogieDeclarations]: Found specification of procedure serio_close [2019-10-13 20:56:48,192 INFO L130 BoogieDeclarations]: Found specification of procedure __serio_register_driver [2019-10-13 20:56:48,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___serio_register_driver_23 [2019-10-13 20:56:48,195 INFO L130 BoogieDeclarations]: Found specification of procedure serio_unregister_driver [2019-10-13 20:56:48,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serio_unregister_driver_24 [2019-10-13 20:56:48,196 INFO L130 BoogieDeclarations]: Found specification of procedure serio_write [2019-10-13 20:56:48,196 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2019-10-13 20:56:48,196 INFO L130 BoogieDeclarations]: Found specification of procedure serio_get_drvdata [2019-10-13 20:56:48,196 INFO L130 BoogieDeclarations]: Found specification of procedure serio_set_drvdata [2019-10-13 20:56:48,196 INFO L130 BoogieDeclarations]: Found specification of procedure serio_pause_rx [2019-10-13 20:56:48,197 INFO L130 BoogieDeclarations]: Found specification of procedure serio_continue_rx [2019-10-13 20:56:48,197 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2019-10-13 20:56:48,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_18 [2019-10-13 20:56:48,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_19 [2019-10-13 20:56:48,197 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2019-10-13 20:56:48,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_deregister_20 [2019-10-13 20:56:48,198 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_fasync [2019-10-13 20:56:48,198 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_locate [2019-10-13 20:56:48,198 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_open [2019-10-13 20:56:48,198 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_free [2019-10-13 20:56:48,198 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_release [2019-10-13 20:56:48,198 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_fetch_byte [2019-10-13 20:56:48,199 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_read [2019-10-13 20:56:48,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 20:56:48,199 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_write [2019-10-13 20:56:48,199 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_poll [2019-10-13 20:56:48,199 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_interrupt [2019-10-13 20:56:48,199 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_connect [2019-10-13 20:56:48,200 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_reconnect [2019-10-13 20:56:48,200 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_hangup [2019-10-13 20:56:48,200 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_disconnect [2019-10-13 20:56:48,200 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_drv_init [2019-10-13 20:56:48,200 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_drv_exit [2019-10-13 20:56:48,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 20:56:48,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 20:56:48,201 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 20:56:48,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 20:56:48,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2019-10-13 20:56:48,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 20:56:48,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 20:56:48,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 20:56:48,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 20:56:48,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-13 20:56:48,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-13 20:56:48,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-13 20:56:48,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-13 20:56:48,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-13 20:56:48,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-13 20:56:48,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-13 20:56:48,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-13 20:56:48,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-13 20:56:48,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-13 20:56:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-13 20:56:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-13 20:56:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-13 20:56:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-13 20:56:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2019-10-13 20:56:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2019-10-13 20:56:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2019-10-13 20:56:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2019-10-13 20:56:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-13 20:56:48,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-13 20:56:48,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-13 20:56:48,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-13 20:56:48,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2019-10-13 20:56:48,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-13 20:56:48,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-13 20:56:48,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-13 20:56:48,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_serio_raw_mutex [2019-10-13 20:56:48,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_serio_raw_mutex [2019-10-13 20:56:48,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_serio_raw_mutex [2019-10-13 20:56:48,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_serio_raw_mutex [2019-10-13 20:56:48,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_serio_raw_mutex [2019-10-13 20:56:48,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_serio_raw_mutex [2019-10-13 20:56:48,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_serio_raw_mutex [2019-10-13 20:56:48,205 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 20:56:48,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-13 20:56:48,205 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 20:56:48,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 20:56:48,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 20:56:48,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 20:56:48,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 20:56:49,065 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 20:56:50,696 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 20:56:50,696 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 20:56:50,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:56:50 BoogieIcfgContainer [2019-10-13 20:56:50,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 20:56:50,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 20:56:50,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 20:56:50,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 20:56:50,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:56:45" (1/3) ... [2019-10-13 20:56:50,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289987d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:56:50, skipping insertion in model container [2019-10-13 20:56:50,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:47" (2/3) ... [2019-10-13 20:56:50,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289987d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:56:50, skipping insertion in model container [2019-10-13 20:56:50,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:56:50" (3/3) ... [2019-10-13 20:56:50,707 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 20:56:50,717 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 20:56:50,730 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 20:56:50,744 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 20:56:50,783 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 20:56:50,783 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 20:56:50,783 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 20:56:50,783 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 20:56:50,784 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 20:56:50,784 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 20:56:50,784 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 20:56:50,784 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 20:56:50,839 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states. [2019-10-13 20:56:50,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-13 20:56:50,866 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:50,867 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 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] [2019-10-13 20:56:50,870 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:50,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:50,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1729461888, now seen corresponding path program 1 times [2019-10-13 20:56:50,885 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:50,886 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654504607] [2019-10-13 20:56:50,886 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:50,886 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:50,886 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:51,745 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-10-13 20:56:51,746 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654504607] [2019-10-13 20:56:51,747 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:51,748 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:51,748 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425042696] [2019-10-13 20:56:51,754 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:51,755 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:51,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:51,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:51,775 INFO L87 Difference]: Start difference. First operand 954 states. Second operand 3 states. [2019-10-13 20:56:52,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:52,026 INFO L93 Difference]: Finished difference Result 1823 states and 2289 transitions. [2019-10-13 20:56:52,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:52,028 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-10-13 20:56:52,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:52,062 INFO L225 Difference]: With dead ends: 1823 [2019-10-13 20:56:52,062 INFO L226 Difference]: Without dead ends: 1097 [2019-10-13 20:56:52,075 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:52,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2019-10-13 20:56:52,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1058. [2019-10-13 20:56:52,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1058 states. [2019-10-13 20:56:52,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1286 transitions. [2019-10-13 20:56:52,271 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1286 transitions. Word has length 178 [2019-10-13 20:56:52,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:52,274 INFO L462 AbstractCegarLoop]: Abstraction has 1058 states and 1286 transitions. [2019-10-13 20:56:52,274 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:52,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1286 transitions. [2019-10-13 20:56:52,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-13 20:56:52,287 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:52,287 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 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] [2019-10-13 20:56:52,287 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:52,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:52,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1156488474, now seen corresponding path program 1 times [2019-10-13 20:56:52,288 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:52,288 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82033700] [2019-10-13 20:56:52,288 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:52,289 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:52,289 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:52,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:52,562 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-10-13 20:56:52,563 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82033700] [2019-10-13 20:56:52,563 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:52,563 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:52,564 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291247731] [2019-10-13 20:56:52,566 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:52,567 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:52,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:52,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:52,567 INFO L87 Difference]: Start difference. First operand 1058 states and 1286 transitions. Second operand 3 states. [2019-10-13 20:56:52,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:52,726 INFO L93 Difference]: Finished difference Result 3012 states and 3659 transitions. [2019-10-13 20:56:52,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:52,727 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-13 20:56:52,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:52,739 INFO L225 Difference]: With dead ends: 3012 [2019-10-13 20:56:52,740 INFO L226 Difference]: Without dead ends: 2000 [2019-10-13 20:56:52,744 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:52,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2000 states. [2019-10-13 20:56:52,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2000 to 1994. [2019-10-13 20:56:52,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1994 states. [2019-10-13 20:56:52,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2422 transitions. [2019-10-13 20:56:52,910 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2422 transitions. Word has length 180 [2019-10-13 20:56:52,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:52,912 INFO L462 AbstractCegarLoop]: Abstraction has 1994 states and 2422 transitions. [2019-10-13 20:56:52,912 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:52,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2422 transitions. [2019-10-13 20:56:52,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-13 20:56:52,915 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:52,916 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 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] [2019-10-13 20:56:52,916 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:52,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:52,917 INFO L82 PathProgramCache]: Analyzing trace with hash 872417033, now seen corresponding path program 1 times [2019-10-13 20:56:52,917 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:52,917 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924748923] [2019-10-13 20:56:52,917 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:52,918 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:52,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:53,149 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-10-13 20:56:53,149 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924748923] [2019-10-13 20:56:53,149 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:53,149 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:53,150 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35188574] [2019-10-13 20:56:53,150 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:53,151 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:53,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:53,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:53,151 INFO L87 Difference]: Start difference. First operand 1994 states and 2422 transitions. Second operand 3 states. [2019-10-13 20:56:53,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:53,240 INFO L93 Difference]: Finished difference Result 2016 states and 2448 transitions. [2019-10-13 20:56:53,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:53,241 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2019-10-13 20:56:53,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:53,252 INFO L225 Difference]: With dead ends: 2016 [2019-10-13 20:56:53,252 INFO L226 Difference]: Without dead ends: 2005 [2019-10-13 20:56:53,253 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:53,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2005 states. [2019-10-13 20:56:53,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2005 to 1994. [2019-10-13 20:56:53,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1994 states. [2019-10-13 20:56:53,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2420 transitions. [2019-10-13 20:56:53,328 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2420 transitions. Word has length 187 [2019-10-13 20:56:53,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:53,329 INFO L462 AbstractCegarLoop]: Abstraction has 1994 states and 2420 transitions. [2019-10-13 20:56:53,329 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:53,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2420 transitions. [2019-10-13 20:56:53,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-13 20:56:53,332 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:53,332 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 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] [2019-10-13 20:56:53,332 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:53,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:53,333 INFO L82 PathProgramCache]: Analyzing trace with hash 929675335, now seen corresponding path program 1 times [2019-10-13 20:56:53,333 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:53,333 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930704974] [2019-10-13 20:56:53,334 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:53,334 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:53,334 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:53,637 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-10-13 20:56:53,637 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930704974] [2019-10-13 20:56:53,637 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:53,638 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:53,638 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720260661] [2019-10-13 20:56:53,638 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:53,639 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:53,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:53,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:53,639 INFO L87 Difference]: Start difference. First operand 1994 states and 2420 transitions. Second operand 3 states. [2019-10-13 20:56:53,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:53,716 INFO L93 Difference]: Finished difference Result 1996 states and 2421 transitions. [2019-10-13 20:56:53,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:53,717 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2019-10-13 20:56:53,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:53,727 INFO L225 Difference]: With dead ends: 1996 [2019-10-13 20:56:53,727 INFO L226 Difference]: Without dead ends: 1993 [2019-10-13 20:56:53,728 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:53,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2019-10-13 20:56:53,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1993. [2019-10-13 20:56:53,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1993 states. [2019-10-13 20:56:53,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 2418 transitions. [2019-10-13 20:56:53,813 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 2418 transitions. Word has length 187 [2019-10-13 20:56:53,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:53,814 INFO L462 AbstractCegarLoop]: Abstraction has 1993 states and 2418 transitions. [2019-10-13 20:56:53,814 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:53,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 2418 transitions. [2019-10-13 20:56:53,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-13 20:56:53,817 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:53,817 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 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] [2019-10-13 20:56:53,818 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:53,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:53,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1245248025, now seen corresponding path program 1 times [2019-10-13 20:56:53,818 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:53,818 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837761035] [2019-10-13 20:56:53,819 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:53,819 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:53,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:53,997 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-10-13 20:56:53,997 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837761035] [2019-10-13 20:56:53,997 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:53,997 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:53,998 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740659955] [2019-10-13 20:56:53,998 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:53,998 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:53,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:53,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:53,999 INFO L87 Difference]: Start difference. First operand 1993 states and 2418 transitions. Second operand 3 states. [2019-10-13 20:56:54,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:54,068 INFO L93 Difference]: Finished difference Result 1995 states and 2419 transitions. [2019-10-13 20:56:54,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:54,069 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2019-10-13 20:56:54,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:54,080 INFO L225 Difference]: With dead ends: 1995 [2019-10-13 20:56:54,080 INFO L226 Difference]: Without dead ends: 1992 [2019-10-13 20:56:54,081 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:54,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1992 states. [2019-10-13 20:56:54,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1992 to 1992. [2019-10-13 20:56:54,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1992 states. [2019-10-13 20:56:54,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1992 states to 1992 states and 2416 transitions. [2019-10-13 20:56:54,190 INFO L78 Accepts]: Start accepts. Automaton has 1992 states and 2416 transitions. Word has length 188 [2019-10-13 20:56:54,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:54,191 INFO L462 AbstractCegarLoop]: Abstraction has 1992 states and 2416 transitions. [2019-10-13 20:56:54,191 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:54,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1992 states and 2416 transitions. [2019-10-13 20:56:54,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-13 20:56:54,194 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:54,194 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 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 20:56:54,194 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:54,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:54,195 INFO L82 PathProgramCache]: Analyzing trace with hash 51609418, now seen corresponding path program 1 times [2019-10-13 20:56:54,195 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:54,195 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083636956] [2019-10-13 20:56:54,195 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:54,196 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:54,196 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:54,596 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-10-13 20:56:54,596 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083636956] [2019-10-13 20:56:54,597 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:54,597 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:54,597 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280194698] [2019-10-13 20:56:54,598 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:54,598 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:54,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:54,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:54,603 INFO L87 Difference]: Start difference. First operand 1992 states and 2416 transitions. Second operand 3 states. [2019-10-13 20:56:54,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:54,676 INFO L93 Difference]: Finished difference Result 1994 states and 2417 transitions. [2019-10-13 20:56:54,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:54,677 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-10-13 20:56:54,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:54,697 INFO L225 Difference]: With dead ends: 1994 [2019-10-13 20:56:54,697 INFO L226 Difference]: Without dead ends: 1991 [2019-10-13 20:56:54,699 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:54,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2019-10-13 20:56:54,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1991. [2019-10-13 20:56:54,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1991 states. [2019-10-13 20:56:54,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 2414 transitions. [2019-10-13 20:56:54,813 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 2414 transitions. Word has length 189 [2019-10-13 20:56:54,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:54,813 INFO L462 AbstractCegarLoop]: Abstraction has 1991 states and 2414 transitions. [2019-10-13 20:56:54,813 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:54,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 2414 transitions. [2019-10-13 20:56:54,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-13 20:56:54,817 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:54,817 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 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, 1, 1, 1, 1, 1] [2019-10-13 20:56:54,818 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:54,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:54,818 INFO L82 PathProgramCache]: Analyzing trace with hash 611780794, now seen corresponding path program 1 times [2019-10-13 20:56:54,818 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:54,819 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372355065] [2019-10-13 20:56:54,819 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:54,819 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:54,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:55,006 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-10-13 20:56:55,007 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372355065] [2019-10-13 20:56:55,007 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:55,007 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:55,007 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938704124] [2019-10-13 20:56:55,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:55,008 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:55,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:55,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:55,009 INFO L87 Difference]: Start difference. First operand 1991 states and 2414 transitions. Second operand 3 states. [2019-10-13 20:56:55,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:55,292 INFO L93 Difference]: Finished difference Result 5155 states and 6235 transitions. [2019-10-13 20:56:55,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:55,292 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2019-10-13 20:56:55,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:55,310 INFO L225 Difference]: With dead ends: 5155 [2019-10-13 20:56:55,310 INFO L226 Difference]: Without dead ends: 3218 [2019-10-13 20:56:55,317 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:55,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2019-10-13 20:56:55,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 3177. [2019-10-13 20:56:55,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3177 states. [2019-10-13 20:56:55,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3177 states to 3177 states and 3840 transitions. [2019-10-13 20:56:55,481 INFO L78 Accepts]: Start accepts. Automaton has 3177 states and 3840 transitions. Word has length 194 [2019-10-13 20:56:55,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:55,481 INFO L462 AbstractCegarLoop]: Abstraction has 3177 states and 3840 transitions. [2019-10-13 20:56:55,481 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:55,482 INFO L276 IsEmpty]: Start isEmpty. Operand 3177 states and 3840 transitions. [2019-10-13 20:56:55,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-13 20:56:55,484 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:55,484 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 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, 1] [2019-10-13 20:56:55,484 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:55,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:55,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1599489354, now seen corresponding path program 1 times [2019-10-13 20:56:55,485 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:55,485 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603126040] [2019-10-13 20:56:55,485 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:55,485 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:55,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:55,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:55,671 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-10-13 20:56:55,671 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603126040] [2019-10-13 20:56:55,672 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:55,672 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:55,672 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398159288] [2019-10-13 20:56:55,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:55,673 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:55,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:55,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:55,673 INFO L87 Difference]: Start difference. First operand 3177 states and 3840 transitions. Second operand 3 states. [2019-10-13 20:56:55,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:55,910 INFO L93 Difference]: Finished difference Result 8789 states and 10851 transitions. [2019-10-13 20:56:55,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:55,911 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-13 20:56:55,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:55,949 INFO L225 Difference]: With dead ends: 8789 [2019-10-13 20:56:55,949 INFO L226 Difference]: Without dead ends: 5648 [2019-10-13 20:56:55,963 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:55,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5648 states. [2019-10-13 20:56:56,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5648 to 5593. [2019-10-13 20:56:56,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5593 states. [2019-10-13 20:56:56,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5593 states to 5593 states and 6913 transitions. [2019-10-13 20:56:56,339 INFO L78 Accepts]: Start accepts. Automaton has 5593 states and 6913 transitions. Word has length 190 [2019-10-13 20:56:56,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:56,339 INFO L462 AbstractCegarLoop]: Abstraction has 5593 states and 6913 transitions. [2019-10-13 20:56:56,340 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:56,340 INFO L276 IsEmpty]: Start isEmpty. Operand 5593 states and 6913 transitions. [2019-10-13 20:56:56,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2019-10-13 20:56:56,344 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:56,344 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 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] [2019-10-13 20:56:56,345 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:56,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:56,345 INFO L82 PathProgramCache]: Analyzing trace with hash -866239076, now seen corresponding path program 1 times [2019-10-13 20:56:56,345 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:56,346 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862717028] [2019-10-13 20:56:56,346 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:56,346 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:56,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:56,581 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2019-10-13 20:56:56,581 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862717028] [2019-10-13 20:56:56,581 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:56,582 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:56,582 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289396717] [2019-10-13 20:56:56,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:56,583 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:56,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:56,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:56,583 INFO L87 Difference]: Start difference. First operand 5593 states and 6913 transitions. Second operand 3 states. [2019-10-13 20:56:56,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:56,967 INFO L93 Difference]: Finished difference Result 13327 states and 16514 transitions. [2019-10-13 20:56:56,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:56,968 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 261 [2019-10-13 20:56:56,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:57,019 INFO L225 Difference]: With dead ends: 13327 [2019-10-13 20:56:57,019 INFO L226 Difference]: Without dead ends: 7788 [2019-10-13 20:56:57,040 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:57,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7788 states. [2019-10-13 20:56:57,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7788 to 7715. [2019-10-13 20:56:57,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7715 states. [2019-10-13 20:56:57,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7715 states to 7715 states and 9549 transitions. [2019-10-13 20:56:57,510 INFO L78 Accepts]: Start accepts. Automaton has 7715 states and 9549 transitions. Word has length 261 [2019-10-13 20:56:57,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:57,510 INFO L462 AbstractCegarLoop]: Abstraction has 7715 states and 9549 transitions. [2019-10-13 20:56:57,511 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:57,511 INFO L276 IsEmpty]: Start isEmpty. Operand 7715 states and 9549 transitions. [2019-10-13 20:56:57,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2019-10-13 20:56:57,517 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:57,517 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:57,517 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:57,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:57,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1115521749, now seen corresponding path program 1 times [2019-10-13 20:56:57,518 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:57,518 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539855973] [2019-10-13 20:56:57,518 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:57,519 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:57,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:57,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:57,782 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2019-10-13 20:56:57,783 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539855973] [2019-10-13 20:56:57,783 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:57,783 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:57,784 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932873013] [2019-10-13 20:56:57,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:57,784 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:57,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:57,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:57,785 INFO L87 Difference]: Start difference. First operand 7715 states and 9549 transitions. Second operand 3 states. [2019-10-13 20:56:58,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:58,186 INFO L93 Difference]: Finished difference Result 15378 states and 19040 transitions. [2019-10-13 20:56:58,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:58,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 301 [2019-10-13 20:56:58,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:58,227 INFO L225 Difference]: With dead ends: 15378 [2019-10-13 20:56:58,228 INFO L226 Difference]: Without dead ends: 7717 [2019-10-13 20:56:58,257 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 20:56:58,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7717 states. [2019-10-13 20:56:58,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7717 to 7472. [2019-10-13 20:56:58,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7472 states. [2019-10-13 20:56:58,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7472 states to 7472 states and 9111 transitions. [2019-10-13 20:56:58,757 INFO L78 Accepts]: Start accepts. Automaton has 7472 states and 9111 transitions. Word has length 301 [2019-10-13 20:56:58,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:58,758 INFO L462 AbstractCegarLoop]: Abstraction has 7472 states and 9111 transitions. [2019-10-13 20:56:58,758 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:58,758 INFO L276 IsEmpty]: Start isEmpty. Operand 7472 states and 9111 transitions. [2019-10-13 20:56:58,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2019-10-13 20:56:58,769 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:58,770 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:58,770 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:58,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:58,771 INFO L82 PathProgramCache]: Analyzing trace with hash 656188615, now seen corresponding path program 1 times [2019-10-13 20:56:58,771 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:58,771 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430854744] [2019-10-13 20:56:58,772 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:58,772 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:58,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:58,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:59,088 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2019-10-13 20:56:59,088 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430854744] [2019-10-13 20:56:59,088 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:59,089 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:59,089 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447204242] [2019-10-13 20:56:59,089 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:59,090 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:59,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:59,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:59,090 INFO L87 Difference]: Start difference. First operand 7472 states and 9111 transitions. Second operand 3 states. [2019-10-13 20:56:59,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:59,309 INFO L93 Difference]: Finished difference Result 11408 states and 13902 transitions. [2019-10-13 20:56:59,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:59,309 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 313 [2019-10-13 20:56:59,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:59,327 INFO L225 Difference]: With dead ends: 11408 [2019-10-13 20:56:59,327 INFO L226 Difference]: Without dead ends: 3984 [2019-10-13 20:56:59,346 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:59,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3984 states. [2019-10-13 20:56:59,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3984 to 3971. [2019-10-13 20:56:59,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3971 states. [2019-10-13 20:56:59,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3971 states to 3971 states and 4828 transitions. [2019-10-13 20:56:59,529 INFO L78 Accepts]: Start accepts. Automaton has 3971 states and 4828 transitions. Word has length 313 [2019-10-13 20:56:59,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:59,530 INFO L462 AbstractCegarLoop]: Abstraction has 3971 states and 4828 transitions. [2019-10-13 20:56:59,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:59,530 INFO L276 IsEmpty]: Start isEmpty. Operand 3971 states and 4828 transitions. [2019-10-13 20:56:59,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2019-10-13 20:56:59,535 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:59,536 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:59,536 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:59,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:59,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1796302967, now seen corresponding path program 1 times [2019-10-13 20:56:59,537 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:59,537 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938597948] [2019-10-13 20:56:59,537 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:59,537 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:59,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:59,918 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2019-10-13 20:56:59,919 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938597948] [2019-10-13 20:56:59,919 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:59,920 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:59,920 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852163211] [2019-10-13 20:56:59,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:59,921 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:59,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:59,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:59,922 INFO L87 Difference]: Start difference. First operand 3971 states and 4828 transitions. Second operand 3 states. [2019-10-13 20:57:00,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:57:00,079 INFO L93 Difference]: Finished difference Result 7881 states and 9604 transitions. [2019-10-13 20:57:00,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:57:00,079 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 313 [2019-10-13 20:57:00,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:57:00,096 INFO L225 Difference]: With dead ends: 7881 [2019-10-13 20:57:00,097 INFO L226 Difference]: Without dead ends: 3979 [2019-10-13 20:57:00,109 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:57:00,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3979 states. [2019-10-13 20:57:00,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3979 to 3971. [2019-10-13 20:57:00,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3971 states. [2019-10-13 20:57:00,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3971 states to 3971 states and 4804 transitions. [2019-10-13 20:57:00,273 INFO L78 Accepts]: Start accepts. Automaton has 3971 states and 4804 transitions. Word has length 313 [2019-10-13 20:57:00,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:57:00,274 INFO L462 AbstractCegarLoop]: Abstraction has 3971 states and 4804 transitions. [2019-10-13 20:57:00,274 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:57:00,274 INFO L276 IsEmpty]: Start isEmpty. Operand 3971 states and 4804 transitions. [2019-10-13 20:57:00,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2019-10-13 20:57:00,279 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:57:00,280 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:57:00,280 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:57:00,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:57:00,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1764649778, now seen corresponding path program 1 times [2019-10-13 20:57:00,281 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:57:00,281 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151204209] [2019-10-13 20:57:00,281 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:57:00,281 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:57:00,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:57:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:57:00,715 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2019-10-13 20:57:00,715 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151204209] [2019-10-13 20:57:00,716 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:57:00,716 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 20:57:00,716 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821205303] [2019-10-13 20:57:00,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 20:57:00,717 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:57:00,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 20:57:00,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:57:00,718 INFO L87 Difference]: Start difference. First operand 3971 states and 4804 transitions. Second operand 7 states. [2019-10-13 20:57:00,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:57:00,882 INFO L93 Difference]: Finished difference Result 3995 states and 4833 transitions. [2019-10-13 20:57:00,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:57:00,882 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 315 [2019-10-13 20:57:00,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:57:00,896 INFO L225 Difference]: With dead ends: 3995 [2019-10-13 20:57:00,897 INFO L226 Difference]: Without dead ends: 3969 [2019-10-13 20:57:00,899 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:57:00,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3969 states. [2019-10-13 20:57:01,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3969 to 3964. [2019-10-13 20:57:01,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3964 states. [2019-10-13 20:57:01,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3964 states to 3964 states and 4798 transitions. [2019-10-13 20:57:01,072 INFO L78 Accepts]: Start accepts. Automaton has 3964 states and 4798 transitions. Word has length 315 [2019-10-13 20:57:01,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:57:01,073 INFO L462 AbstractCegarLoop]: Abstraction has 3964 states and 4798 transitions. [2019-10-13 20:57:01,073 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 20:57:01,073 INFO L276 IsEmpty]: Start isEmpty. Operand 3964 states and 4798 transitions. [2019-10-13 20:57:01,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2019-10-13 20:57:01,081 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:57:01,081 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:57:01,082 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:57:01,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:57:01,082 INFO L82 PathProgramCache]: Analyzing trace with hash -359928462, now seen corresponding path program 1 times [2019-10-13 20:57:01,083 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:57:01,083 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321748077] [2019-10-13 20:57:01,083 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:57:01,083 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:57:01,084 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:57:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:57:01,950 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2019-10-13 20:57:01,950 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321748077] [2019-10-13 20:57:01,950 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:57:01,950 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 20:57:01,951 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264512440] [2019-10-13 20:57:01,951 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 20:57:01,952 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:57:01,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 20:57:01,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:57:01,952 INFO L87 Difference]: Start difference. First operand 3964 states and 4798 transitions. Second operand 7 states. [2019-10-13 20:57:02,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:57:02,164 INFO L93 Difference]: Finished difference Result 7854 states and 9510 transitions. [2019-10-13 20:57:02,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:57:02,164 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 364 [2019-10-13 20:57:02,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:57:02,182 INFO L225 Difference]: With dead ends: 7854 [2019-10-13 20:57:02,182 INFO L226 Difference]: Without dead ends: 3959 [2019-10-13 20:57:02,197 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-13 20:57:02,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3959 states. [2019-10-13 20:57:02,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3959 to 3957. [2019-10-13 20:57:02,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3957 states. [2019-10-13 20:57:02,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3957 states to 3957 states and 4787 transitions. [2019-10-13 20:57:02,414 INFO L78 Accepts]: Start accepts. Automaton has 3957 states and 4787 transitions. Word has length 364 [2019-10-13 20:57:02,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:57:02,415 INFO L462 AbstractCegarLoop]: Abstraction has 3957 states and 4787 transitions. [2019-10-13 20:57:02,415 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 20:57:02,416 INFO L276 IsEmpty]: Start isEmpty. Operand 3957 states and 4787 transitions. [2019-10-13 20:57:02,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2019-10-13 20:57:02,436 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:57:02,437 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:57:02,437 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:57:02,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:57:02,438 INFO L82 PathProgramCache]: Analyzing trace with hash -729698287, now seen corresponding path program 1 times [2019-10-13 20:57:02,438 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:57:02,438 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548428429] [2019-10-13 20:57:02,439 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:57:02,439 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:57:02,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:57:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:57:02,908 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2019-10-13 20:57:02,909 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548428429] [2019-10-13 20:57:02,909 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:57:02,909 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 20:57:02,909 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243578894] [2019-10-13 20:57:02,910 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 20:57:02,910 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:57:02,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 20:57:02,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:57:02,911 INFO L87 Difference]: Start difference. First operand 3957 states and 4787 transitions. Second operand 7 states. [2019-10-13 20:57:03,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:57:03,085 INFO L93 Difference]: Finished difference Result 3983 states and 4815 transitions. [2019-10-13 20:57:03,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:57:03,086 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 404 [2019-10-13 20:57:03,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:57:03,104 INFO L225 Difference]: With dead ends: 3983 [2019-10-13 20:57:03,104 INFO L226 Difference]: Without dead ends: 3908 [2019-10-13 20:57:03,107 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:57:03,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3908 states. [2019-10-13 20:57:03,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3908 to 3896. [2019-10-13 20:57:03,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3896 states. [2019-10-13 20:57:03,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 4701 transitions. [2019-10-13 20:57:03,253 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 4701 transitions. Word has length 404 [2019-10-13 20:57:03,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:57:03,254 INFO L462 AbstractCegarLoop]: Abstraction has 3896 states and 4701 transitions. [2019-10-13 20:57:03,254 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 20:57:03,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 4701 transitions. [2019-10-13 20:57:03,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2019-10-13 20:57:03,266 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:57:03,266 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:57:03,266 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:57:03,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:57:03,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1554226209, now seen corresponding path program 1 times [2019-10-13 20:57:03,267 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:57:03,267 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230520442] [2019-10-13 20:57:03,267 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:57:03,268 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:57:03,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:57:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:57:03,667 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2019-10-13 20:57:03,667 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230520442] [2019-10-13 20:57:03,668 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:57:03,668 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 20:57:03,668 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616911325] [2019-10-13 20:57:03,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 20:57:03,669 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:57:03,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 20:57:03,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:57:03,670 INFO L87 Difference]: Start difference. First operand 3896 states and 4701 transitions. Second operand 7 states. [2019-10-13 20:57:03,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:57:03,920 INFO L93 Difference]: Finished difference Result 7750 states and 9375 transitions. [2019-10-13 20:57:03,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:57:03,921 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 414 [2019-10-13 20:57:03,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:57:03,942 INFO L225 Difference]: With dead ends: 7750 [2019-10-13 20:57:03,942 INFO L226 Difference]: Without dead ends: 3923 [2019-10-13 20:57:03,957 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-13 20:57:03,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3923 states. [2019-10-13 20:57:04,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3923 to 3911. [2019-10-13 20:57:04,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3911 states. [2019-10-13 20:57:04,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3911 states to 3911 states and 4725 transitions. [2019-10-13 20:57:04,138 INFO L78 Accepts]: Start accepts. Automaton has 3911 states and 4725 transitions. Word has length 414 [2019-10-13 20:57:04,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:57:04,139 INFO L462 AbstractCegarLoop]: Abstraction has 3911 states and 4725 transitions. [2019-10-13 20:57:04,139 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 20:57:04,139 INFO L276 IsEmpty]: Start isEmpty. Operand 3911 states and 4725 transitions. [2019-10-13 20:57:04,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2019-10-13 20:57:04,157 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:57:04,157 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:57:04,158 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:57:04,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:57:04,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1951491597, now seen corresponding path program 1 times [2019-10-13 20:57:04,158 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:57:04,158 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268363008] [2019-10-13 20:57:04,159 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:57:04,159 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:57:04,159 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:57:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:57:04,581 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2019-10-13 20:57:04,581 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268363008] [2019-10-13 20:57:04,582 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:57:04,582 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 20:57:04,585 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232360073] [2019-10-13 20:57:04,586 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 20:57:04,586 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:57:04,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 20:57:04,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:57:04,587 INFO L87 Difference]: Start difference. First operand 3911 states and 4725 transitions. Second operand 7 states. [2019-10-13 20:57:04,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:57:04,748 INFO L93 Difference]: Finished difference Result 4038 states and 4843 transitions. [2019-10-13 20:57:04,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:57:04,749 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 421 [2019-10-13 20:57:04,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:57:04,762 INFO L225 Difference]: With dead ends: 4038 [2019-10-13 20:57:04,762 INFO L226 Difference]: Without dead ends: 3708 [2019-10-13 20:57:04,765 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:57:04,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3708 states. [2019-10-13 20:57:04,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3708 to 3696. [2019-10-13 20:57:04,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3696 states. [2019-10-13 20:57:04,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3696 states to 3696 states and 4454 transitions. [2019-10-13 20:57:04,932 INFO L78 Accepts]: Start accepts. Automaton has 3696 states and 4454 transitions. Word has length 421 [2019-10-13 20:57:04,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:57:04,938 INFO L462 AbstractCegarLoop]: Abstraction has 3696 states and 4454 transitions. [2019-10-13 20:57:04,938 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 20:57:04,938 INFO L276 IsEmpty]: Start isEmpty. Operand 3696 states and 4454 transitions. [2019-10-13 20:57:04,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2019-10-13 20:57:04,957 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:57:04,958 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:57:04,958 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:57:04,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:57:04,959 INFO L82 PathProgramCache]: Analyzing trace with hash -2036854807, now seen corresponding path program 1 times [2019-10-13 20:57:04,959 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:57:04,959 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337864248] [2019-10-13 20:57:04,960 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:57:04,960 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:57:04,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:57:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:57:05,494 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2019-10-13 20:57:05,494 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337864248] [2019-10-13 20:57:05,495 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:57:05,495 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 20:57:05,495 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512434536] [2019-10-13 20:57:05,496 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 20:57:05,496 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:57:05,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 20:57:05,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:57:05,497 INFO L87 Difference]: Start difference. First operand 3696 states and 4454 transitions. Second operand 7 states. [2019-10-13 20:57:05,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:57:05,620 INFO L93 Difference]: Finished difference Result 3833 states and 4579 transitions. [2019-10-13 20:57:05,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:57:05,620 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 427 [2019-10-13 20:57:05,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:57:05,622 INFO L225 Difference]: With dead ends: 3833 [2019-10-13 20:57:05,622 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 20:57:05,633 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:57:05,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 20:57:05,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 20:57:05,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 20:57:05,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 20:57:05,634 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 427 [2019-10-13 20:57:05,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:57:05,635 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 20:57:05,635 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 20:57:05,635 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 20:57:05,635 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 20:57:05,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 20:57:08,660 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 30 [2019-10-13 20:57:08,889 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 27 [2019-10-13 20:57:09,898 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 27 [2019-10-13 20:57:10,962 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 27 [2019-10-13 20:57:11,389 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 27 [2019-10-13 20:57:12,990 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 23 [2019-10-13 20:57:13,160 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 30 [2019-10-13 20:57:13,348 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 27 [2019-10-13 20:57:13,614 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 30 [2019-10-13 20:57:13,946 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 27 [2019-10-13 20:57:14,966 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 30 [2019-10-13 20:57:15,508 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 27