java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 02:50:14,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:50:14,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:50:14,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:50:14,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:50:14,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:50:14,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:50:14,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:50:14,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:50:14,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:50:14,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:50:14,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:50:14,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:50:14,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:50:14,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:50:14,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:50:14,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:50:14,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:50:14,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:50:14,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:50:14,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:50:14,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:50:14,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:50:14,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:50:14,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 02:50:14,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 02:50:14,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 02:50:14,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 02:50:14,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 02:50:14,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 02:50:14,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 02:50:14,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 02:50:14,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 02:50:14,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 02:50:14,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 02:50:14,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 02:50:14,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 02:50:14,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 02:50:14,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:50:14,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:50:14,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:50:14,830 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 02:50:14,844 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:50:14,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:50:14,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:50:14,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:50:14,846 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:50:14,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:50:14,847 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:50:14,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:50:14,847 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:50:14,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:50:14,848 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:50:14,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:50:14,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:50:14,848 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:50:14,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:50:14,849 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:50:14,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:50:14,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:50:14,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:50:14,849 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:50:14,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:50:14,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:50:14,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:50:14,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:50:14,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:50:14,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:50:14,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:50:14,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:50:14,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 02:50:15,157 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:50:15,177 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:50:15,180 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:50:15,182 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:50:15,182 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:50:15,183 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2019-10-15 02:50:15,248 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9f4d3b7f/f278bef5708d499c897326ca5ba1c40e/FLAG628607904 [2019-10-15 02:50:16,003 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:50:16,004 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2019-10-15 02:50:16,045 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9f4d3b7f/f278bef5708d499c897326ca5ba1c40e/FLAG628607904 [2019-10-15 02:50:16,104 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9f4d3b7f/f278bef5708d499c897326ca5ba1c40e [2019-10-15 02:50:16,114 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:50:16,115 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:50:16,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:50:16,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:50:16,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:50:16,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:50:16" (1/1) ... [2019-10-15 02:50:16,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22fefd9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:50:16, skipping insertion in model container [2019-10-15 02:50:16,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:50:16" (1/1) ... [2019-10-15 02:50:16,132 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:50:16,246 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:50:17,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:50:17,865 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:50:18,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:50:18,452 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:50:18,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:50:18 WrapperNode [2019-10-15 02:50:18,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:50:18,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:50:18,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:50:18,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:50:18,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:50:18" (1/1) ... [2019-10-15 02:50:18,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:50:18" (1/1) ... [2019-10-15 02:50:18,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:50:18" (1/1) ... [2019-10-15 02:50:18,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:50:18" (1/1) ... [2019-10-15 02:50:18,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:50:18" (1/1) ... [2019-10-15 02:50:18,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:50:18" (1/1) ... [2019-10-15 02:50:18,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:50:18" (1/1) ... [2019-10-15 02:50:18,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:50:18,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:50:18,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:50:18,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:50:18,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:50:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:50:18,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:50:18,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:50:18,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-15 02:50:18,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-15 02:50:18,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2019-10-15 02:50:18,815 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-15 02:50:18,816 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-15 02:50:18,816 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2019-10-15 02:50:18,816 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-15 02:50:18,817 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_and_test [2019-10-15 02:50:18,817 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2019-10-15 02:50:18,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-15 02:50:18,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-15 02:50:18,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-15 02:50:18,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-15 02:50:18,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-15 02:50:18,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-15 02:50:18,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-15 02:50:18,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-15 02:50:18,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-15 02:50:18,822 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-10-15 02:50:18,822 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-10-15 02:50:18,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 02:50:18,823 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 02:50:18,823 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-15 02:50:18,823 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2019-10-15 02:50:18,823 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2019-10-15 02:50:18,823 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2019-10-15 02:50:18,823 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2019-10-15 02:50:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-10-15 02:50:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-10-15 02:50:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-15 02:50:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-15 02:50:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_write [2019-10-15 02:50:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_get_drvdata [2019-10-15 02:50:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_set_drvdata [2019-10-15 02:50:18,825 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_pause_rx [2019-10-15 02:50:18,825 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_continue_rx [2019-10-15 02:50:18,825 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_fasync [2019-10-15 02:50:18,825 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_locate [2019-10-15 02:50:18,826 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_open [2019-10-15 02:50:18,826 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_free [2019-10-15 02:50:18,826 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_release [2019-10-15 02:50:18,826 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_fetch_byte [2019-10-15 02:50:18,826 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_read [2019-10-15 02:50:18,826 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_write [2019-10-15 02:50:18,826 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_poll [2019-10-15 02:50:18,827 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_interrupt [2019-10-15 02:50:18,827 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_connect [2019-10-15 02:50:18,827 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_reconnect [2019-10-15 02:50:18,827 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_hangup [2019-10-15 02:50:18,827 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_disconnect [2019-10-15 02:50:18,827 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_drv_init [2019-10-15 02:50:18,827 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_drv_exit [2019-10-15 02:50:18,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serio_driver_1 [2019-10-15 02:50:18,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2019-10-15 02:50:18,828 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:50:18,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2019-10-15 02:50:18,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2019-10-15 02:50:18,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-15 02:50:18,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2019-10-15 02:50:18,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_9 [2019-10-15 02:50:18,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_10 [2019-10-15 02:50:18,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-15 02:50:18,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_12 [2019-10-15 02:50:18,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2019-10-15 02:50:18,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_14 [2019-10-15 02:50:18,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2019-10-15 02:50:18,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_16 [2019-10-15 02:50:18,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_17 [2019-10-15 02:50:18,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_18 [2019-10-15 02:50:18,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_19 [2019-10-15 02:50:18,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_deregister_20 [2019-10-15 02:50:18,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_21 [2019-10-15 02:50:18,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_22 [2019-10-15 02:50:18,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___serio_register_driver_23 [2019-10-15 02:50:18,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serio_unregister_driver_24 [2019-10-15 02:50:18,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-15 02:50:18,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2019-10-15 02:50:18,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-15 02:50:18,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-15 02:50:18,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-15 02:50:18,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-15 02:50:18,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-15 02:50:18,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-15 02:50:18,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-15 02:50:18,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-15 02:50:18,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-15 02:50:18,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-15 02:50:18,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-15 02:50:18,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-15 02:50:18,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-15 02:50:18,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-15 02:50:18,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-15 02:50:18,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-15 02:50:18,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-15 02:50:18,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-15 02:50:18,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-15 02:50:18,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-15 02:50:18,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-15 02:50:18,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-15 02:50:18,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2019-10-15 02:50:18,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2019-10-15 02:50:18,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2019-10-15 02:50:18,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2019-10-15 02:50:18,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-15 02:50:18,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-15 02:50:18,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-15 02:50:18,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-15 02:50:18,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-15 02:50:18,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-15 02:50:18,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-15 02:50:18,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2019-10-15 02:50:18,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-15 02:50:18,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-15 02:50:18,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-15 02:50:18,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2019-10-15 02:50:18,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_serio_raw_mutex [2019-10-15 02:50:18,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_serio_raw_mutex [2019-10-15 02:50:18,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_serio_raw_mutex [2019-10-15 02:50:18,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_serio_raw_mutex [2019-10-15 02:50:18,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_serio_raw_mutex [2019-10-15 02:50:18,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_serio_raw_mutex [2019-10-15 02:50:18,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_serio_raw_mutex [2019-10-15 02:50:18,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_serio_raw_mutex [2019-10-15 02:50:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_serio_raw_mutex [2019-10-15 02:50:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_serio_raw_mutex [2019-10-15 02:50:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 02:50:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-10-15 02:50:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-15 02:50:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-15 02:50:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2019-10-15 02:50:18,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-10-15 02:50:18,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2019-10-15 02:50:18,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __serio_register_driver [2019-10-15 02:50:18,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-15 02:50:18,854 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-15 02:50:18,855 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-10-15 02:50:18,855 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-10-15 02:50:18,855 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-15 02:50:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure fasync_helper [2019-10-15 02:50:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-15 02:50:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device [2019-10-15 02:50:18,857 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2019-10-15 02:50:18,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 02:50:18,862 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-15 02:50:18,863 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2019-10-15 02:50:18,863 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2019-10-15 02:50:18,863 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-15 02:50:18,863 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-10-15 02:50:18,863 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_killable [2019-10-15 02:50:18,863 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-15 02:50:18,864 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-15 02:50:18,864 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2019-10-15 02:50:18,864 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2019-10-15 02:50:18,864 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2019-10-15 02:50:18,865 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-15 02:50:18,865 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_close [2019-10-15 02:50:18,865 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_open [2019-10-15 02:50:18,865 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_unregister_driver [2019-10-15 02:50:18,865 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-15 02:50:18,866 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 02:50:18,866 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 02:50:18,866 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-15 02:50:18,866 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-15 02:50:18,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:50:18,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-15 02:50:18,866 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-10-15 02:50:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2019-10-15 02:50:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-10-15 02:50:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-15 02:50:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-15 02:50:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 02:50:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-15 02:50:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-15 02:50:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 02:50:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2019-10-15 02:50:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-15 02:50:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2019-10-15 02:50:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-15 02:50:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-15 02:50:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2019-10-15 02:50:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-15 02:50:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 02:50:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_and_test [2019-10-15 02:50:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2019-10-15 02:50:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-15 02:50:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_10 [2019-10-15 02:50:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-15 02:50:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2019-10-15 02:50:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-15 02:50:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-15 02:50:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2019-10-15 02:50:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2019-10-15 02:50:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_17 [2019-10-15 02:50:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_22 [2019-10-15 02:50:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 02:50:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 02:50:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 02:50:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 02:50:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 02:50:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 02:50:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-15 02:50:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 02:50:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-15 02:50:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-15 02:50:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-15 02:50:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-15 02:50:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-15 02:50:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-15 02:50:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-15 02:50:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-15 02:50:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-15 02:50:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-10-15 02:50:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_12 [2019-10-15 02:50:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_14 [2019-10-15 02:50:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_killable [2019-10-15 02:50:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_16 [2019-10-15 02:50:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-15 02:50:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2019-10-15 02:50:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2019-10-15 02:50:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_9 [2019-10-15 02:50:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_21 [2019-10-15 02:50:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-15 02:50:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-15 02:50:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-15 02:50:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-15 02:50:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-15 02:50:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-15 02:50:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-15 02:50:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2019-10-15 02:50:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_serio_raw_mutex [2019-10-15 02:50:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_serio_raw_mutex [2019-10-15 02:50:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_serio_raw_mutex [2019-10-15 02:50:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-10-15 02:50:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-10-15 02:50:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-10-15 02:50:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-10-15 02:50:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-15 02:50:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-15 02:50:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2019-10-15 02:50:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-15 02:50:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-15 02:50:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 02:50:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 02:50:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 02:50:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-15 02:50:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serio_driver_1 [2019-10-15 02:50:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2019-10-15 02:50:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2019-10-15 02:50:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2019-10-15 02:50:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 02:50:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2019-10-15 02:50:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-15 02:50:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2019-10-15 02:50:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-10-15 02:50:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 02:50:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure fasync_helper [2019-10-15 02:50:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2019-10-15 02:50:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-15 02:50:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-10-15 02:50:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-15 02:50:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-15 02:50:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-15 02:50:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure get_device [2019-10-15 02:50:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2019-10-15 02:50:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-15 02:50:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-15 02:50:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure serio_open [2019-10-15 02:50:18,885 INFO L130 BoogieDeclarations]: Found specification of procedure serio_close [2019-10-15 02:50:18,885 INFO L130 BoogieDeclarations]: Found specification of procedure __serio_register_driver [2019-10-15 02:50:18,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___serio_register_driver_23 [2019-10-15 02:50:18,888 INFO L130 BoogieDeclarations]: Found specification of procedure serio_unregister_driver [2019-10-15 02:50:18,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serio_unregister_driver_24 [2019-10-15 02:50:18,888 INFO L130 BoogieDeclarations]: Found specification of procedure serio_write [2019-10-15 02:50:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2019-10-15 02:50:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure serio_get_drvdata [2019-10-15 02:50:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure serio_set_drvdata [2019-10-15 02:50:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure serio_pause_rx [2019-10-15 02:50:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure serio_continue_rx [2019-10-15 02:50:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2019-10-15 02:50:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_18 [2019-10-15 02:50:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_19 [2019-10-15 02:50:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2019-10-15 02:50:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_deregister_20 [2019-10-15 02:50:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_fasync [2019-10-15 02:50:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_locate [2019-10-15 02:50:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_open [2019-10-15 02:50:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_free [2019-10-15 02:50:18,891 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_release [2019-10-15 02:50:18,891 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_fetch_byte [2019-10-15 02:50:18,891 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_read [2019-10-15 02:50:18,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:50:18,891 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_write [2019-10-15 02:50:18,891 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_poll [2019-10-15 02:50:18,891 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_interrupt [2019-10-15 02:50:18,891 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_connect [2019-10-15 02:50:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_reconnect [2019-10-15 02:50:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_hangup [2019-10-15 02:50:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_disconnect [2019-10-15 02:50:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_drv_init [2019-10-15 02:50:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_drv_exit [2019-10-15 02:50:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 02:50:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 02:50:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:50:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-15 02:50:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2019-10-15 02:50:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-15 02:50:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-15 02:50:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-15 02:50:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-15 02:50:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-15 02:50:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-15 02:50:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-15 02:50:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-15 02:50:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-15 02:50:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-15 02:50:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-15 02:50:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-15 02:50:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-15 02:50:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-15 02:50:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-15 02:50:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-15 02:50:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-15 02:50:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-15 02:50:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2019-10-15 02:50:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2019-10-15 02:50:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2019-10-15 02:50:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2019-10-15 02:50:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-15 02:50:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-15 02:50:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-15 02:50:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-15 02:50:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2019-10-15 02:50:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-15 02:50:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-15 02:50:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-15 02:50:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_serio_raw_mutex [2019-10-15 02:50:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_serio_raw_mutex [2019-10-15 02:50:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_serio_raw_mutex [2019-10-15 02:50:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_serio_raw_mutex [2019-10-15 02:50:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_serio_raw_mutex [2019-10-15 02:50:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_serio_raw_mutex [2019-10-15 02:50:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_serio_raw_mutex [2019-10-15 02:50:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 02:50:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-15 02:50:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 02:50:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:50:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 02:50:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 02:50:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:50:19,743 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-15 02:50:22,545 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:50:22,545 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 02:50:22,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:50:22 BoogieIcfgContainer [2019-10-15 02:50:22,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:50:22,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:50:22,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:50:22,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:50:22,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:50:16" (1/3) ... [2019-10-15 02:50:22,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3eea01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:50:22, skipping insertion in model container [2019-10-15 02:50:22,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:50:18" (2/3) ... [2019-10-15 02:50:22,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3eea01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:50:22, skipping insertion in model container [2019-10-15 02:50:22,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:50:22" (3/3) ... [2019-10-15 02:50:22,555 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2019-10-15 02:50:22,564 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:50:22,574 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:50:22,586 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:50:22,617 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:50:22,617 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:50:22,617 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:50:22,618 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:50:22,618 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:50:22,618 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:50:22,618 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:50:22,618 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:50:22,653 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states. [2019-10-15 02:50:22,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-15 02:50:22,669 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:50:22,671 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:50:22,673 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:50:22,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:50:22,679 INFO L82 PathProgramCache]: Analyzing trace with hash 155852198, now seen corresponding path program 1 times [2019-10-15 02:50:22,688 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:50:22,689 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096324467] [2019-10-15 02:50:22,689 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:22,689 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:22,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:50:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:50:23,492 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2019-10-15 02:50:23,492 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096324467] [2019-10-15 02:50:23,493 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:50:23,494 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:50:23,494 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932072176] [2019-10-15 02:50:23,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:50:23,499 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:50:23,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:50:23,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:23,517 INFO L87 Difference]: Start difference. First operand 798 states. Second operand 3 states. [2019-10-15 02:50:23,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:50:23,798 INFO L93 Difference]: Finished difference Result 1541 states and 1940 transitions. [2019-10-15 02:50:23,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:50:23,800 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2019-10-15 02:50:23,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:50:23,825 INFO L225 Difference]: With dead ends: 1541 [2019-10-15 02:50:23,825 INFO L226 Difference]: Without dead ends: 926 [2019-10-15 02:50:23,836 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:23,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2019-10-15 02:50:23,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 891. [2019-10-15 02:50:23,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2019-10-15 02:50:23,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1080 transitions. [2019-10-15 02:50:23,995 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1080 transitions. Word has length 148 [2019-10-15 02:50:23,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:50:23,998 INFO L462 AbstractCegarLoop]: Abstraction has 891 states and 1080 transitions. [2019-10-15 02:50:23,998 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:50:23,998 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1080 transitions. [2019-10-15 02:50:24,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-15 02:50:24,010 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:50:24,011 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:50:24,011 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:50:24,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:50:24,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1002454400, now seen corresponding path program 1 times [2019-10-15 02:50:24,012 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:50:24,012 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320991469] [2019-10-15 02:50:24,012 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:24,012 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:24,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:50:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:50:24,319 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2019-10-15 02:50:24,320 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320991469] [2019-10-15 02:50:24,320 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:50:24,320 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:50:24,320 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29172656] [2019-10-15 02:50:24,322 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:50:24,322 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:50:24,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:50:24,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:24,323 INFO L87 Difference]: Start difference. First operand 891 states and 1080 transitions. Second operand 3 states. [2019-10-15 02:50:24,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:50:24,463 INFO L93 Difference]: Finished difference Result 2527 states and 3057 transitions. [2019-10-15 02:50:24,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:50:24,463 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-10-15 02:50:24,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:50:24,476 INFO L225 Difference]: With dead ends: 2527 [2019-10-15 02:50:24,476 INFO L226 Difference]: Without dead ends: 1679 [2019-10-15 02:50:24,480 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:24,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2019-10-15 02:50:24,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 1673. [2019-10-15 02:50:24,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1673 states. [2019-10-15 02:50:24,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 2023 transitions. [2019-10-15 02:50:24,564 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 2023 transitions. Word has length 149 [2019-10-15 02:50:24,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:50:24,565 INFO L462 AbstractCegarLoop]: Abstraction has 1673 states and 2023 transitions. [2019-10-15 02:50:24,565 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:50:24,566 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 2023 transitions. [2019-10-15 02:50:24,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-15 02:50:24,568 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:50:24,568 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:50:24,568 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:50:24,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:50:24,569 INFO L82 PathProgramCache]: Analyzing trace with hash 466161229, now seen corresponding path program 1 times [2019-10-15 02:50:24,569 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:50:24,569 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868166425] [2019-10-15 02:50:24,569 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:24,570 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:24,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:50:24,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:50:24,768 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2019-10-15 02:50:24,769 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868166425] [2019-10-15 02:50:24,769 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:50:24,769 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:50:24,769 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294571457] [2019-10-15 02:50:24,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:50:24,770 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:50:24,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:50:24,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:24,771 INFO L87 Difference]: Start difference. First operand 1673 states and 2023 transitions. Second operand 3 states. [2019-10-15 02:50:24,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:50:24,827 INFO L93 Difference]: Finished difference Result 1675 states and 2024 transitions. [2019-10-15 02:50:24,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:50:24,827 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2019-10-15 02:50:24,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:50:24,840 INFO L225 Difference]: With dead ends: 1675 [2019-10-15 02:50:24,840 INFO L226 Difference]: Without dead ends: 1672 [2019-10-15 02:50:24,841 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:24,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2019-10-15 02:50:24,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1672. [2019-10-15 02:50:24,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1672 states. [2019-10-15 02:50:24,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 2021 transitions. [2019-10-15 02:50:24,932 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 2021 transitions. Word has length 154 [2019-10-15 02:50:24,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:50:24,933 INFO L462 AbstractCegarLoop]: Abstraction has 1672 states and 2021 transitions. [2019-10-15 02:50:24,933 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:50:24,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 2021 transitions. [2019-10-15 02:50:24,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-15 02:50:24,935 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:50:24,936 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:50:24,936 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:50:24,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:50:24,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1565683873, now seen corresponding path program 1 times [2019-10-15 02:50:24,937 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:50:24,937 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981852434] [2019-10-15 02:50:24,937 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:24,938 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:24,938 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:50:25,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:50:25,199 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2019-10-15 02:50:25,199 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981852434] [2019-10-15 02:50:25,199 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:50:25,199 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:50:25,200 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27782213] [2019-10-15 02:50:25,200 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:50:25,200 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:50:25,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:50:25,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:25,201 INFO L87 Difference]: Start difference. First operand 1672 states and 2021 transitions. Second operand 3 states. [2019-10-15 02:50:25,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:50:25,259 INFO L93 Difference]: Finished difference Result 1674 states and 2022 transitions. [2019-10-15 02:50:25,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:50:25,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-15 02:50:25,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:50:25,270 INFO L225 Difference]: With dead ends: 1674 [2019-10-15 02:50:25,270 INFO L226 Difference]: Without dead ends: 1671 [2019-10-15 02:50:25,271 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:25,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2019-10-15 02:50:25,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1671. [2019-10-15 02:50:25,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1671 states. [2019-10-15 02:50:25,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2019 transitions. [2019-10-15 02:50:25,355 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2019 transitions. Word has length 155 [2019-10-15 02:50:25,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:50:25,357 INFO L462 AbstractCegarLoop]: Abstraction has 1671 states and 2019 transitions. [2019-10-15 02:50:25,357 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:50:25,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2019 transitions. [2019-10-15 02:50:25,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-15 02:50:25,359 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:50:25,359 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:50:25,359 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:50:25,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:50:25,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1291152336, now seen corresponding path program 1 times [2019-10-15 02:50:25,360 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:50:25,360 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313612436] [2019-10-15 02:50:25,360 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:25,361 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:25,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:50:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:50:25,567 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2019-10-15 02:50:25,568 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313612436] [2019-10-15 02:50:25,568 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:50:25,568 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:50:25,568 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573307694] [2019-10-15 02:50:25,569 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:50:25,569 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:50:25,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:50:25,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:25,570 INFO L87 Difference]: Start difference. First operand 1671 states and 2019 transitions. Second operand 3 states. [2019-10-15 02:50:25,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:50:25,651 INFO L93 Difference]: Finished difference Result 1673 states and 2020 transitions. [2019-10-15 02:50:25,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:50:25,652 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2019-10-15 02:50:25,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:50:25,661 INFO L225 Difference]: With dead ends: 1673 [2019-10-15 02:50:25,661 INFO L226 Difference]: Without dead ends: 1670 [2019-10-15 02:50:25,663 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:25,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2019-10-15 02:50:25,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 1670. [2019-10-15 02:50:25,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1670 states. [2019-10-15 02:50:25,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 2017 transitions. [2019-10-15 02:50:25,775 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 2017 transitions. Word has length 156 [2019-10-15 02:50:25,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:50:25,780 INFO L462 AbstractCegarLoop]: Abstraction has 1670 states and 2017 transitions. [2019-10-15 02:50:25,781 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:50:25,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 2017 transitions. [2019-10-15 02:50:25,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-15 02:50:25,901 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:50:25,902 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:50:25,902 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:50:25,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:50:25,903 INFO L82 PathProgramCache]: Analyzing trace with hash 592343665, now seen corresponding path program 1 times [2019-10-15 02:50:25,903 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:50:25,903 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244334396] [2019-10-15 02:50:25,903 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:25,903 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:25,903 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:50:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:50:26,073 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2019-10-15 02:50:26,073 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244334396] [2019-10-15 02:50:26,074 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:50:26,074 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:50:26,074 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096605856] [2019-10-15 02:50:26,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:50:26,075 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:50:26,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:50:26,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:26,075 INFO L87 Difference]: Start difference. First operand 1670 states and 2017 transitions. Second operand 3 states. [2019-10-15 02:50:26,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:50:26,215 INFO L93 Difference]: Finished difference Result 3076 states and 3707 transitions. [2019-10-15 02:50:26,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:50:26,215 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2019-10-15 02:50:26,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:50:26,225 INFO L225 Difference]: With dead ends: 3076 [2019-10-15 02:50:26,225 INFO L226 Difference]: Without dead ends: 1455 [2019-10-15 02:50:26,230 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:26,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2019-10-15 02:50:26,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1428. [2019-10-15 02:50:26,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2019-10-15 02:50:26,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1720 transitions. [2019-10-15 02:50:26,312 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1720 transitions. Word has length 161 [2019-10-15 02:50:26,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:50:26,313 INFO L462 AbstractCegarLoop]: Abstraction has 1428 states and 1720 transitions. [2019-10-15 02:50:26,313 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:50:26,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1720 transitions. [2019-10-15 02:50:26,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-15 02:50:26,315 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:50:26,315 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:50:26,315 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:50:26,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:50:26,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1370614148, now seen corresponding path program 1 times [2019-10-15 02:50:26,316 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:50:26,316 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090048455] [2019-10-15 02:50:26,316 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:26,317 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:26,317 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:50:26,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:50:26,536 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2019-10-15 02:50:26,537 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090048455] [2019-10-15 02:50:26,537 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:50:26,537 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:50:26,537 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700204659] [2019-10-15 02:50:26,538 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:50:26,538 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:50:26,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:50:26,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:26,539 INFO L87 Difference]: Start difference. First operand 1428 states and 1720 transitions. Second operand 3 states. [2019-10-15 02:50:26,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:50:26,660 INFO L93 Difference]: Finished difference Result 2315 states and 2836 transitions. [2019-10-15 02:50:26,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:50:26,661 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2019-10-15 02:50:26,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:50:26,674 INFO L225 Difference]: With dead ends: 2315 [2019-10-15 02:50:26,674 INFO L226 Difference]: Without dead ends: 2293 [2019-10-15 02:50:26,676 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 [2019-10-15 02:50:26,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2293 states. [2019-10-15 02:50:26,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2293 to 2293. [2019-10-15 02:50:26,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2293 states. [2019-10-15 02:50:26,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2293 states to 2293 states and 2801 transitions. [2019-10-15 02:50:26,868 INFO L78 Accepts]: Start accepts. Automaton has 2293 states and 2801 transitions. Word has length 157 [2019-10-15 02:50:26,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:50:26,869 INFO L462 AbstractCegarLoop]: Abstraction has 2293 states and 2801 transitions. [2019-10-15 02:50:26,869 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:50:26,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2293 states and 2801 transitions. [2019-10-15 02:50:26,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-15 02:50:26,876 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:50:26,876 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:50:26,877 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:50:26,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:50:26,877 INFO L82 PathProgramCache]: Analyzing trace with hash -849498686, now seen corresponding path program 1 times [2019-10-15 02:50:26,877 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:50:26,877 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147785347] [2019-10-15 02:50:26,878 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:26,878 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:26,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:50:26,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:50:27,080 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2019-10-15 02:50:27,080 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147785347] [2019-10-15 02:50:27,081 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:50:27,081 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:50:27,081 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936659266] [2019-10-15 02:50:27,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:50:27,082 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:50:27,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:50:27,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:27,083 INFO L87 Difference]: Start difference. First operand 2293 states and 2801 transitions. Second operand 3 states. [2019-10-15 02:50:27,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:50:27,325 INFO L93 Difference]: Finished difference Result 5395 states and 6612 transitions. [2019-10-15 02:50:27,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:50:27,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2019-10-15 02:50:27,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:50:27,346 INFO L225 Difference]: With dead ends: 5395 [2019-10-15 02:50:27,346 INFO L226 Difference]: Without dead ends: 3166 [2019-10-15 02:50:27,354 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:27,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3166 states. [2019-10-15 02:50:27,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3166 to 3130. [2019-10-15 02:50:27,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3130 states. [2019-10-15 02:50:27,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 3834 transitions. [2019-10-15 02:50:27,517 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 3834 transitions. Word has length 217 [2019-10-15 02:50:27,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:50:27,518 INFO L462 AbstractCegarLoop]: Abstraction has 3130 states and 3834 transitions. [2019-10-15 02:50:27,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:50:27,518 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 3834 transitions. [2019-10-15 02:50:27,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-10-15 02:50:27,522 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:50:27,523 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:50:27,523 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:50:27,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:50:27,523 INFO L82 PathProgramCache]: Analyzing trace with hash -917878632, now seen corresponding path program 1 times [2019-10-15 02:50:27,523 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:50:27,524 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171507144] [2019-10-15 02:50:27,524 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:27,524 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:27,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:50:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:50:27,864 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2019-10-15 02:50:27,865 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171507144] [2019-10-15 02:50:27,865 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:50:27,865 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:50:27,865 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703566864] [2019-10-15 02:50:27,866 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:50:27,866 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:50:27,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:50:27,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:27,867 INFO L87 Difference]: Start difference. First operand 3130 states and 3834 transitions. Second operand 3 states. [2019-10-15 02:50:28,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:50:28,054 INFO L93 Difference]: Finished difference Result 3137 states and 3840 transitions. [2019-10-15 02:50:28,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:50:28,055 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 248 [2019-10-15 02:50:28,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:50:28,078 INFO L225 Difference]: With dead ends: 3137 [2019-10-15 02:50:28,078 INFO L226 Difference]: Without dead ends: 3134 [2019-10-15 02:50:28,081 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:28,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3134 states. [2019-10-15 02:50:28,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3134 to 3134. [2019-10-15 02:50:28,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3134 states. [2019-10-15 02:50:28,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 3835 transitions. [2019-10-15 02:50:28,283 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 3835 transitions. Word has length 248 [2019-10-15 02:50:28,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:50:28,283 INFO L462 AbstractCegarLoop]: Abstraction has 3134 states and 3835 transitions. [2019-10-15 02:50:28,284 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:50:28,284 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 3835 transitions. [2019-10-15 02:50:28,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2019-10-15 02:50:28,291 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:50:28,292 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:50:28,292 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:50:28,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:50:28,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1281005145, now seen corresponding path program 1 times [2019-10-15 02:50:28,293 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:50:28,294 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872177823] [2019-10-15 02:50:28,294 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:28,294 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:28,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:50:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:50:28,687 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2019-10-15 02:50:28,688 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872177823] [2019-10-15 02:50:28,688 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:50:28,688 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 02:50:28,688 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021299325] [2019-10-15 02:50:28,689 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 02:50:28,689 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:50:28,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 02:50:28,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-15 02:50:28,690 INFO L87 Difference]: Start difference. First operand 3134 states and 3835 transitions. Second operand 8 states. [2019-10-15 02:50:29,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:50:29,430 INFO L93 Difference]: Finished difference Result 3149 states and 3855 transitions. [2019-10-15 02:50:29,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 02:50:29,431 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 255 [2019-10-15 02:50:29,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:50:29,451 INFO L225 Difference]: With dead ends: 3149 [2019-10-15 02:50:29,451 INFO L226 Difference]: Without dead ends: 3146 [2019-10-15 02:50:29,453 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-15 02:50:29,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3146 states. [2019-10-15 02:50:29,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3146 to 3140. [2019-10-15 02:50:29,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3140 states. [2019-10-15 02:50:29,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 3839 transitions. [2019-10-15 02:50:29,606 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 3839 transitions. Word has length 255 [2019-10-15 02:50:29,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:50:29,607 INFO L462 AbstractCegarLoop]: Abstraction has 3140 states and 3839 transitions. [2019-10-15 02:50:29,607 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 02:50:29,607 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 3839 transitions. [2019-10-15 02:50:29,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2019-10-15 02:50:29,613 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:50:29,614 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:50:29,614 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:50:29,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:50:29,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1481698768, now seen corresponding path program 1 times [2019-10-15 02:50:29,615 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:50:29,615 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348510237] [2019-10-15 02:50:29,615 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:29,615 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:29,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:50:29,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:50:30,065 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2019-10-15 02:50:30,065 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348510237] [2019-10-15 02:50:30,066 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:50:30,066 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 02:50:30,066 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314375040] [2019-10-15 02:50:30,067 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 02:50:30,067 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:50:30,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 02:50:30,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-10-15 02:50:30,068 INFO L87 Difference]: Start difference. First operand 3140 states and 3839 transitions. Second operand 9 states. [2019-10-15 02:50:33,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:50:33,300 INFO L93 Difference]: Finished difference Result 4923 states and 6335 transitions. [2019-10-15 02:50:33,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 02:50:33,300 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 297 [2019-10-15 02:50:33,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:50:33,330 INFO L225 Difference]: With dead ends: 4923 [2019-10-15 02:50:33,330 INFO L226 Difference]: Without dead ends: 4898 [2019-10-15 02:50:33,334 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2019-10-15 02:50:33,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4898 states. [2019-10-15 02:50:33,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4898 to 4203. [2019-10-15 02:50:33,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4203 states. [2019-10-15 02:50:33,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4203 states to 4203 states and 5156 transitions. [2019-10-15 02:50:33,535 INFO L78 Accepts]: Start accepts. Automaton has 4203 states and 5156 transitions. Word has length 297 [2019-10-15 02:50:33,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:50:33,536 INFO L462 AbstractCegarLoop]: Abstraction has 4203 states and 5156 transitions. [2019-10-15 02:50:33,536 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 02:50:33,536 INFO L276 IsEmpty]: Start isEmpty. Operand 4203 states and 5156 transitions. [2019-10-15 02:50:33,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2019-10-15 02:50:33,545 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:50:33,545 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:50:33,546 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:50:33,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:50:33,546 INFO L82 PathProgramCache]: Analyzing trace with hash 693201300, now seen corresponding path program 1 times [2019-10-15 02:50:33,546 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:50:33,546 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898502870] [2019-10-15 02:50:33,547 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:33,547 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:33,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:50:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:50:33,882 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2019-10-15 02:50:33,882 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898502870] [2019-10-15 02:50:33,883 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:50:33,883 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:50:33,883 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605349626] [2019-10-15 02:50:33,884 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:50:33,884 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:50:33,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:50:33,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:33,885 INFO L87 Difference]: Start difference. First operand 4203 states and 5156 transitions. Second operand 3 states. [2019-10-15 02:50:34,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:50:34,246 INFO L93 Difference]: Finished difference Result 9853 states and 12115 transitions. [2019-10-15 02:50:34,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:50:34,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 330 [2019-10-15 02:50:34,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:50:34,289 INFO L225 Difference]: With dead ends: 9853 [2019-10-15 02:50:34,290 INFO L226 Difference]: Without dead ends: 5714 [2019-10-15 02:50:34,304 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:34,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5714 states. [2019-10-15 02:50:34,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5714 to 5633. [2019-10-15 02:50:34,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5633 states. [2019-10-15 02:50:34,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5633 states to 5633 states and 6858 transitions. [2019-10-15 02:50:34,552 INFO L78 Accepts]: Start accepts. Automaton has 5633 states and 6858 transitions. Word has length 330 [2019-10-15 02:50:34,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:50:34,553 INFO L462 AbstractCegarLoop]: Abstraction has 5633 states and 6858 transitions. [2019-10-15 02:50:34,553 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:50:34,553 INFO L276 IsEmpty]: Start isEmpty. Operand 5633 states and 6858 transitions. [2019-10-15 02:50:34,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2019-10-15 02:50:34,561 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:50:34,562 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:50:34,562 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:50:34,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:50:34,562 INFO L82 PathProgramCache]: Analyzing trace with hash -781578350, now seen corresponding path program 1 times [2019-10-15 02:50:34,563 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:50:34,563 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055084805] [2019-10-15 02:50:34,563 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:34,563 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:34,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:50:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:50:34,970 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2019-10-15 02:50:34,971 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055084805] [2019-10-15 02:50:34,971 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:50:34,971 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 02:50:34,972 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663815186] [2019-10-15 02:50:34,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 02:50:34,973 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:50:34,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 02:50:34,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-15 02:50:34,975 INFO L87 Difference]: Start difference. First operand 5633 states and 6858 transitions. Second operand 8 states. [2019-10-15 02:50:35,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:50:35,803 INFO L93 Difference]: Finished difference Result 5650 states and 6874 transitions. [2019-10-15 02:50:35,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 02:50:35,805 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 329 [2019-10-15 02:50:35,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:50:35,837 INFO L225 Difference]: With dead ends: 5650 [2019-10-15 02:50:35,837 INFO L226 Difference]: Without dead ends: 5647 [2019-10-15 02:50:35,840 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-15 02:50:35,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5647 states. [2019-10-15 02:50:36,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5647 to 5641. [2019-10-15 02:50:36,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5641 states. [2019-10-15 02:50:36,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5641 states to 5641 states and 6860 transitions. [2019-10-15 02:50:36,046 INFO L78 Accepts]: Start accepts. Automaton has 5641 states and 6860 transitions. Word has length 329 [2019-10-15 02:50:36,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:50:36,046 INFO L462 AbstractCegarLoop]: Abstraction has 5641 states and 6860 transitions. [2019-10-15 02:50:36,046 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 02:50:36,047 INFO L276 IsEmpty]: Start isEmpty. Operand 5641 states and 6860 transitions. [2019-10-15 02:50:36,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2019-10-15 02:50:36,056 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:50:36,057 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:50:36,057 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:50:36,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:50:36,058 INFO L82 PathProgramCache]: Analyzing trace with hash 300438309, now seen corresponding path program 1 times [2019-10-15 02:50:36,058 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:50:36,058 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821184845] [2019-10-15 02:50:36,058 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:36,058 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:36,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:50:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:50:36,499 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2019-10-15 02:50:36,500 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821184845] [2019-10-15 02:50:36,500 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:50:36,500 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 02:50:36,500 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471794710] [2019-10-15 02:50:36,502 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 02:50:36,502 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:50:36,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 02:50:36,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-15 02:50:36,503 INFO L87 Difference]: Start difference. First operand 5641 states and 6860 transitions. Second operand 8 states. [2019-10-15 02:50:37,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:50:37,314 INFO L93 Difference]: Finished difference Result 5667 states and 6880 transitions. [2019-10-15 02:50:37,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 02:50:37,314 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 345 [2019-10-15 02:50:37,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:50:37,332 INFO L225 Difference]: With dead ends: 5667 [2019-10-15 02:50:37,333 INFO L226 Difference]: Without dead ends: 5664 [2019-10-15 02:50:37,336 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-15 02:50:37,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5664 states. [2019-10-15 02:50:37,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5664 to 5656. [2019-10-15 02:50:37,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5656 states. [2019-10-15 02:50:37,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5656 states to 5656 states and 6867 transitions. [2019-10-15 02:50:37,601 INFO L78 Accepts]: Start accepts. Automaton has 5656 states and 6867 transitions. Word has length 345 [2019-10-15 02:50:37,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:50:37,602 INFO L462 AbstractCegarLoop]: Abstraction has 5656 states and 6867 transitions. [2019-10-15 02:50:37,602 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 02:50:37,602 INFO L276 IsEmpty]: Start isEmpty. Operand 5656 states and 6867 transitions. [2019-10-15 02:50:37,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2019-10-15 02:50:37,612 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:50:37,613 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:50:37,613 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:50:37,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:50:37,613 INFO L82 PathProgramCache]: Analyzing trace with hash -972207368, now seen corresponding path program 1 times [2019-10-15 02:50:37,614 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:50:37,614 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456532613] [2019-10-15 02:50:37,614 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:37,614 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:37,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:50:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:50:38,036 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2019-10-15 02:50:38,037 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456532613] [2019-10-15 02:50:38,037 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668590818] [2019-10-15 02:50:38,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:50:38,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:50:38,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 3088 conjuncts, 27 conjunts are in the unsatisfiable core [2019-10-15 02:50:38,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:50:38,990 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:50:39,095 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2019-10-15 02:50:39,095 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:50:40,482 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:50:40,897 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2019-10-15 02:50:40,897 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 02:50:40,898 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [9] total 19 [2019-10-15 02:50:40,898 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107856573] [2019-10-15 02:50:40,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-15 02:50:40,901 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:50:40,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-15 02:50:40,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2019-10-15 02:50:40,902 INFO L87 Difference]: Start difference. First operand 5656 states and 6867 transitions. Second operand 13 states. [2019-10-15 02:50:43,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:50:43,631 INFO L93 Difference]: Finished difference Result 7466 states and 9182 transitions. [2019-10-15 02:50:43,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 02:50:43,632 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 345 [2019-10-15 02:50:43,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:50:43,667 INFO L225 Difference]: With dead ends: 7466 [2019-10-15 02:50:43,667 INFO L226 Difference]: Without dead ends: 7444 [2019-10-15 02:50:43,672 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 706 GetRequests, 688 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2019-10-15 02:50:43,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7444 states.