java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 00:55:03,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 00:55:03,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 00:55:03,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 00:55:03,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 00:55:03,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 00:55:03,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 00:55:03,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 00:55:03,838 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 00:55:03,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 00:55:03,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 00:55:03,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 00:55:03,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 00:55:03,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 00:55:03,846 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 00:55:03,847 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 00:55:03,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 00:55:03,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 00:55:03,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 00:55:03,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 00:55:03,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 00:55:03,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 00:55:03,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 00:55:03,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 00:55:03,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 00:55:03,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 00:55:03,869 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 00:55:03,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 00:55:03,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 00:55:03,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 00:55:03,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 00:55:03,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 00:55:03,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 00:55:03,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 00:55:03,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 00:55:03,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 00:55:03,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 00:55:03,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 00:55:03,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 00:55:03,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 00:55:03,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 00:55:03,887 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 00:55:03,907 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 00:55:03,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 00:55:03,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 00:55:03,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 00:55:03,910 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 00:55:03,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 00:55:03,910 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 00:55:03,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 00:55:03,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 00:55:03,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 00:55:03,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 00:55:03,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 00:55:03,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 00:55:03,912 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 00:55:03,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 00:55:03,913 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 00:55:03,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 00:55:03,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 00:55:03,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 00:55:03,914 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 00:55:03,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 00:55:03,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:55:03,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 00:55:03,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 00:55:03,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 00:55:03,915 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 00:55:03,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 00:55:03,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 00:55:03,915 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 00:55:04,177 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 00:55:04,190 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 00:55:04,193 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 00:55:04,195 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 00:55:04,195 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 00:55:04,196 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2019-10-15 00:55:04,262 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84a57ede7/503f6651c2a547919a879d32a83ec4cc/FLAGc7cfcbed9 [2019-10-15 00:55:05,025 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 00:55:05,026 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2019-10-15 00:55:05,070 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84a57ede7/503f6651c2a547919a879d32a83ec4cc/FLAGc7cfcbed9 [2019-10-15 00:55:05,154 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84a57ede7/503f6651c2a547919a879d32a83ec4cc [2019-10-15 00:55:05,163 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 00:55:05,165 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 00:55:05,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 00:55:05,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 00:55:05,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 00:55:05,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:55:05" (1/1) ... [2019-10-15 00:55:05,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@191613fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:55:05, skipping insertion in model container [2019-10-15 00:55:05,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:55:05" (1/1) ... [2019-10-15 00:55:05,180 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 00:55:05,291 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 00:55:06,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:55:07,035 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 00:55:07,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:55:07,600 INFO L192 MainTranslator]: Completed translation [2019-10-15 00:55:07,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:55:07 WrapperNode [2019-10-15 00:55:07,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 00:55:07,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 00:55:07,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 00:55:07,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 00:55:07,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:55:07" (1/1) ... [2019-10-15 00:55:07,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:55:07" (1/1) ... [2019-10-15 00:55:07,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:55:07" (1/1) ... [2019-10-15 00:55:07,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:55:07" (1/1) ... [2019-10-15 00:55:07,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:55:07" (1/1) ... [2019-10-15 00:55:07,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:55:07" (1/1) ... [2019-10-15 00:55:07,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:55:07" (1/1) ... [2019-10-15 00:55:07,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 00:55:07,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 00:55:07,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 00:55:07,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 00:55:07,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:55:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:55:07,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 00:55:07,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 00:55:07,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-10-15 00:55:07,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-10-15 00:55:07,999 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-15 00:55:07,999 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-10-15 00:55:08,000 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-10-15 00:55:08,000 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-15 00:55:08,000 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-15 00:55:08,000 INFO L138 BoogieDeclarations]: Found implementation of procedure current_top_of_stack [2019-10-15 00:55:08,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-15 00:55:08,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-15 00:55:08,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-15 00:55:08,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-15 00:55:08,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-15 00:55:08,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-15 00:55:08,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-15 00:55:08,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-15 00:55:08,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-15 00:55:08,006 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2019-10-15 00:55:08,006 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-15 00:55:08,006 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-15 00:55:08,006 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-15 00:55:08,006 INFO L138 BoogieDeclarations]: Found implementation of procedure need_resched [2019-10-15 00:55:08,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 00:55:08,007 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 00:55:08,008 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-10-15 00:55:08,008 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2019-10-15 00:55:08,008 INFO L138 BoogieDeclarations]: Found implementation of procedure register_chrdev [2019-10-15 00:55:08,008 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2019-10-15 00:55:08,008 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-15 00:55:08,009 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-15 00:55:08,009 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-10-15 00:55:08,009 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_yield_blocking [2019-10-15 00:55:08,009 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_claim_parport_or_block [2019-10-15 00:55:08,009 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_release_parport [2019-10-15 00:55:08,009 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_preempt [2019-10-15 00:55:08,010 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_negotiate [2019-10-15 00:55:08,010 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_reset [2019-10-15 00:55:08,010 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_error [2019-10-15 00:55:08,011 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_check_status [2019-10-15 00:55:08,011 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_wait_ready [2019-10-15 00:55:08,012 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_write [2019-10-15 00:55:08,012 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_read [2019-10-15 00:55:08,012 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_open [2019-10-15 00:55:08,012 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_release [2019-10-15 00:55:08,012 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_do_ioctl [2019-10-15 00:55:08,012 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_set_timeout [2019-10-15 00:55:08,013 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_ioctl [2019-10-15 00:55:08,013 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_compat_ioctl [2019-10-15 00:55:08,013 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_console_write [2019-10-15 00:55:08,013 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_register [2019-10-15 00:55:08,013 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_attach [2019-10-15 00:55:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_detach [2019-10-15 00:55:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_init [2019-10-15 00:55:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_init_module [2019-10-15 00:55:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_cleanup_module [2019-10-15 00:55:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_3 [2019-10-15 00:55:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_parport_driver_1 [2019-10-15 00:55:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 00:55:08,015 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-15 00:55:08,015 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-15 00:55:08,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2019-10-15 00:55:08,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2019-10-15 00:55:08,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-15 00:55:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2019-10-15 00:55:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_9 [2019-10-15 00:55:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_10 [2019-10-15 00:55:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-15 00:55:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_12 [2019-10-15 00:55:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2019-10-15 00:55:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_14 [2019-10-15 00:55:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2019-10-15 00:55:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_16 [2019-10-15 00:55:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_17 [2019-10-15 00:55:08,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_18 [2019-10-15 00:55:08,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_19 [2019-10-15 00:55:08,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_20 [2019-10-15 00:55:08,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_21 [2019-10-15 00:55:08,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_22 [2019-10-15 00:55:08,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_23 [2019-10-15 00:55:08,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_24 [2019-10-15 00:55:08,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_25 [2019-10-15 00:55:08,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-15 00:55:08,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2019-10-15 00:55:08,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-15 00:55:08,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-15 00:55:08,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-15 00:55:08,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-15 00:55:08,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-15 00:55:08,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-15 00:55:08,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-15 00:55:08,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-15 00:55:08,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-15 00:55:08,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-15 00:55:08,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-15 00:55:08,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-15 00:55:08,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-15 00:55:08,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-15 00:55:08,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-15 00:55:08,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-15 00:55:08,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-15 00:55:08,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-15 00:55:08,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-15 00:55:08,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-15 00:55:08,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-15 00:55:08,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-15 00:55:08,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2019-10-15 00:55:08,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2019-10-15 00:55:08,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2019-10-15 00:55:08,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2019-10-15 00:55:08,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lp_mutex [2019-10-15 00:55:08,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lp_mutex [2019-10-15 00:55:08,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lp_mutex [2019-10-15 00:55:08,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lp_mutex [2019-10-15 00:55:08,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lp_mutex [2019-10-15 00:55:08,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lp_mutex [2019-10-15 00:55:08,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lp_mutex [2019-10-15 00:55:08,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lp_mutex [2019-10-15 00:55:08,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lp_mutex [2019-10-15 00:55:08,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lp_mutex [2019-10-15 00:55:08,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lp_mutex [2019-10-15 00:55:08,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-15 00:55:08,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-15 00:55:08,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-15 00:55:08,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-15 00:55:08,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-15 00:55:08,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-15 00:55:08,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-15 00:55:08,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2019-10-15 00:55:08,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-15 00:55:08,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-15 00:55:08,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-15 00:55:08,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2019-10-15 00:55:08,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_port_mutex_of_lp_struct [2019-10-15 00:55:08,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_port_mutex_of_lp_struct [2019-10-15 00:55:08,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_port_mutex_of_lp_struct [2019-10-15 00:55:08,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_port_mutex_of_lp_struct [2019-10-15 00:55:08,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_port_mutex_of_lp_struct [2019-10-15 00:55:08,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2019-10-15 00:55:08,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_port_mutex_of_lp_struct [2019-10-15 00:55:08,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_port_mutex_of_lp_struct [2019-10-15 00:55:08,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_port_mutex_of_lp_struct [2019-10-15 00:55:08,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_port_mutex_of_lp_struct [2019-10-15 00:55:08,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 00:55:08,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ___might_sleep [2019-10-15 00:55:08,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2019-10-15 00:55:08,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-15 00:55:08,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-15 00:55:08,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-10-15 00:55:08,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-15 00:55:08,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-10-15 00:55:08,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-15 00:55:08,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __parport_register_driver [2019-10-15 00:55:08,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __register_chrdev [2019-10-15 00:55:08,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __unregister_chrdev [2019-10-15 00:55:08,036 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2019-10-15 00:55:08,036 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-15 00:55:08,036 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-15 00:55:08,036 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2019-10-15 00:55:08,036 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_get_timeval [2019-10-15 00:55:08,037 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-10-15 00:55:08,037 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-10-15 00:55:08,037 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-15 00:55:08,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_close_1 [2019-10-15 00:55:08,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 00:55:08,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_open_1 [2019-10-15 00:55:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2019-10-15 00:55:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2019-10-15 00:55:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2019-10-15 00:55:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2019-10-15 00:55:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-15 00:55:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-10-15 00:55:08,039 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-15 00:55:08,039 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-15 00:55:08,039 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2019-10-15 00:55:08,039 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_claim [2019-10-15 00:55:08,039 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_claim_or_block [2019-10-15 00:55:08,039 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_negotiate [2019-10-15 00:55:08,040 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_read [2019-10-15 00:55:08,040 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_register_device [2019-10-15 00:55:08,040 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_release [2019-10-15 00:55:08,040 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_set_timeout [2019-10-15 00:55:08,040 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_unregister_device [2019-10-15 00:55:08,040 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_unregister_driver [2019-10-15 00:55:08,040 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_write [2019-10-15 00:55:08,041 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-10-15 00:55:08,041 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-15 00:55:08,041 INFO L138 BoogieDeclarations]: Found implementation of procedure register_console [2019-10-15 00:55:08,041 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-15 00:55:08,041 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2019-10-15 00:55:08,042 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2019-10-15 00:55:08,042 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_console [2019-10-15 00:55:08,042 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2019-10-15 00:55:08,042 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 00:55:08,042 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 00:55:08,043 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-15 00:55:08,043 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-15 00:55:08,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 00:55:08,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-15 00:55:08,043 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-15 00:55:08,043 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-10-15 00:55:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-10-15 00:55:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-15 00:55:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-15 00:55:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure ___might_sleep [2019-10-15 00:55:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-10-15 00:55:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2019-10-15 00:55:08,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-15 00:55:08,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-15 00:55:08,045 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-15 00:55:08,045 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-15 00:55:08,045 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-15 00:55:08,045 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2019-10-15 00:55:08,046 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2019-10-15 00:55:08,046 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-15 00:55:08,046 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-15 00:55:08,046 INFO L130 BoogieDeclarations]: Found specification of procedure current_top_of_stack [2019-10-15 00:55:08,046 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-15 00:55:08,046 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-15 00:55:08,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_10 [2019-10-15 00:55:08,047 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-15 00:55:08,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2019-10-15 00:55:08,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-15 00:55:08,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-15 00:55:08,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2019-10-15 00:55:08,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2019-10-15 00:55:08,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_17 [2019-10-15 00:55:08,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_19 [2019-10-15 00:55:08,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_21 [2019-10-15 00:55:08,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_23 [2019-10-15 00:55:08,048 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 00:55:08,049 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 00:55:08,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 00:55:08,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 00:55:08,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 00:55:08,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 00:55:08,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-15 00:55:08,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 00:55:08,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-15 00:55:08,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-15 00:55:08,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-15 00:55:08,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-15 00:55:08,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-15 00:55:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-15 00:55:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-15 00:55:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-15 00:55:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-15 00:55:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-10-15 00:55:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_12 [2019-10-15 00:55:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_14 [2019-10-15 00:55:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_18 [2019-10-15 00:55:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-15 00:55:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2019-10-15 00:55:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2019-10-15 00:55:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_9 [2019-10-15 00:55:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_16 [2019-10-15 00:55:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_20 [2019-10-15 00:55:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_22 [2019-10-15 00:55:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-15 00:55:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-15 00:55:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-15 00:55:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-15 00:55:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lp_mutex [2019-10-15 00:55:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lp_mutex [2019-10-15 00:55:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-15 00:55:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-15 00:55:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-15 00:55:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2019-10-15 00:55:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2019-10-15 00:55:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2019-10-15 00:55:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-15 00:55:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-15 00:55:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-10-15 00:55:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-15 00:55:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-10-15 00:55:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2019-10-15 00:55:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-15 00:55:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-15 00:55:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 00:55:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-15 00:55:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2019-10-15 00:55:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure need_resched [2019-10-15 00:55:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 00:55:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 00:55:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 00:55:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_3 [2019-10-15 00:55:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_parport_driver_1 [2019-10-15 00:55:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-15 00:55:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-10-15 00:55:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 00:55:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2019-10-15 00:55:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure __register_chrdev [2019-10-15 00:55:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure __unregister_chrdev [2019-10-15 00:55:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure register_chrdev [2019-10-15 00:55:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_24 [2019-10-15 00:55:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2019-10-15 00:55:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_25 [2019-10-15 00:55:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-15 00:55:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-15 00:55:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-15 00:55:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-15 00:55:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-10-15 00:55:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-15 00:55:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 00:55:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-15 00:55:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure register_console [2019-10-15 00:55:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_console [2019-10-15 00:55:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2019-10-15 00:55:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2019-10-15 00:55:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-10-15 00:55:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-10-15 00:55:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-10-15 00:55:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure compat_get_timeval [2019-10-15 00:55:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure __parport_register_driver [2019-10-15 00:55:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure parport_unregister_driver [2019-10-15 00:55:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure parport_register_device [2019-10-15 00:55:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure parport_unregister_device [2019-10-15 00:55:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure parport_claim [2019-10-15 00:55:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure parport_claim_or_block [2019-10-15 00:55:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure parport_release [2019-10-15 00:55:08,067 INFO L130 BoogieDeclarations]: Found specification of procedure parport_yield_blocking [2019-10-15 00:55:08,067 INFO L130 BoogieDeclarations]: Found specification of procedure parport_negotiate [2019-10-15 00:55:08,067 INFO L130 BoogieDeclarations]: Found specification of procedure parport_write [2019-10-15 00:55:08,067 INFO L130 BoogieDeclarations]: Found specification of procedure parport_read [2019-10-15 00:55:08,067 INFO L130 BoogieDeclarations]: Found specification of procedure parport_set_timeout [2019-10-15 00:55:08,067 INFO L130 BoogieDeclarations]: Found specification of procedure lp_claim_parport_or_block [2019-10-15 00:55:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure lp_release_parport [2019-10-15 00:55:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure lp_preempt [2019-10-15 00:55:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure lp_negotiate [2019-10-15 00:55:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure lp_reset [2019-10-15 00:55:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-10-15 00:55:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-10-15 00:55:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure lp_error [2019-10-15 00:55:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 00:55:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 00:55:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 00:55:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure lp_check_status [2019-10-15 00:55:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure lp_wait_ready [2019-10-15 00:55:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure lp_write [2019-10-15 00:55:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure lp_read [2019-10-15 00:55:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure lp_open [2019-10-15 00:55:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure lp_release [2019-10-15 00:55:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure lp_do_ioctl [2019-10-15 00:55:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure lp_set_timeout [2019-10-15 00:55:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure lp_ioctl [2019-10-15 00:55:08,071 INFO L130 BoogieDeclarations]: Found specification of procedure lp_compat_ioctl [2019-10-15 00:55:08,071 INFO L130 BoogieDeclarations]: Found specification of procedure lp_console_write [2019-10-15 00:55:08,071 INFO L130 BoogieDeclarations]: Found specification of procedure lp_register [2019-10-15 00:55:08,071 INFO L130 BoogieDeclarations]: Found specification of procedure lp_attach [2019-10-15 00:55:08,071 INFO L130 BoogieDeclarations]: Found specification of procedure lp_detach [2019-10-15 00:55:08,071 INFO L130 BoogieDeclarations]: Found specification of procedure lp_init [2019-10-15 00:55:08,072 INFO L130 BoogieDeclarations]: Found specification of procedure lp_init_module [2019-10-15 00:55:08,072 INFO L130 BoogieDeclarations]: Found specification of procedure lp_cleanup_module [2019-10-15 00:55:08,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_open_1 [2019-10-15 00:55:08,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2019-10-15 00:55:08,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2019-10-15 00:55:08,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2019-10-15 00:55:08,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 00:55:08,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_close_1 [2019-10-15 00:55:08,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 00:55:08,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2019-10-15 00:55:08,073 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 00:55:08,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-15 00:55:08,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2019-10-15 00:55:08,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-15 00:55:08,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-15 00:55:08,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-15 00:55:08,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-15 00:55:08,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-15 00:55:08,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-15 00:55:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-15 00:55:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-15 00:55:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-15 00:55:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-15 00:55:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-15 00:55:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-15 00:55:08,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-15 00:55:08,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-15 00:55:08,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-15 00:55:08,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-15 00:55:08,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2019-10-15 00:55:08,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2019-10-15 00:55:08,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2019-10-15 00:55:08,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2019-10-15 00:55:08,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lp_mutex [2019-10-15 00:55:08,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lp_mutex [2019-10-15 00:55:08,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lp_mutex [2019-10-15 00:55:08,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lp_mutex [2019-10-15 00:55:08,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lp_mutex [2019-10-15 00:55:08,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lp_mutex [2019-10-15 00:55:08,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lp_mutex [2019-10-15 00:55:08,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lp_mutex [2019-10-15 00:55:08,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lp_mutex [2019-10-15 00:55:08,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-15 00:55:08,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-15 00:55:08,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-15 00:55:08,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-15 00:55:08,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2019-10-15 00:55:08,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-15 00:55:08,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-15 00:55:08,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-15 00:55:08,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_port_mutex_of_lp_struct [2019-10-15 00:55:08,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_port_mutex_of_lp_struct [2019-10-15 00:55:08,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_port_mutex_of_lp_struct [2019-10-15 00:55:08,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_port_mutex_of_lp_struct [2019-10-15 00:55:08,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_port_mutex_of_lp_struct [2019-10-15 00:55:08,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_port_mutex_of_lp_struct [2019-10-15 00:55:08,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_port_mutex_of_lp_struct [2019-10-15 00:55:08,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_port_mutex_of_lp_struct [2019-10-15 00:55:08,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_port_mutex_of_lp_struct [2019-10-15 00:55:08,081 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 00:55:08,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-15 00:55:08,082 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 00:55:08,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 00:55:08,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 00:55:08,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 00:55:08,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 00:55:09,096 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-15 00:55:11,618 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 00:55:11,618 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 00:55:11,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:55:11 BoogieIcfgContainer [2019-10-15 00:55:11,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 00:55:11,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 00:55:11,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 00:55:11,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 00:55:11,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:55:05" (1/3) ... [2019-10-15 00:55:11,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb907e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:55:11, skipping insertion in model container [2019-10-15 00:55:11,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:55:07" (2/3) ... [2019-10-15 00:55:11,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb907e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:55:11, skipping insertion in model container [2019-10-15 00:55:11,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:55:11" (3/3) ... [2019-10-15 00:55:11,629 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2019-10-15 00:55:11,639 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 00:55:11,650 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 00:55:11,662 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 00:55:11,696 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 00:55:11,697 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 00:55:11,697 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 00:55:11,697 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 00:55:11,697 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 00:55:11,697 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 00:55:11,697 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 00:55:11,698 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 00:55:11,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states. [2019-10-15 00:55:11,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-15 00:55:11,848 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:11,850 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:11,854 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:11,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:11,863 INFO L82 PathProgramCache]: Analyzing trace with hash 340210622, now seen corresponding path program 1 times [2019-10-15 00:55:11,874 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:11,874 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292843076] [2019-10-15 00:55:11,875 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:11,875 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:11,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:12,889 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2019-10-15 00:55:12,890 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292843076] [2019-10-15 00:55:12,891 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:12,891 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 00:55:12,891 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316200703] [2019-10-15 00:55:12,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 00:55:12,900 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:12,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 00:55:12,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:55:12,921 INFO L87 Difference]: Start difference. First operand 1355 states. Second operand 7 states. [2019-10-15 00:55:13,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:13,305 INFO L93 Difference]: Finished difference Result 2162 states and 2867 transitions. [2019-10-15 00:55:13,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 00:55:13,307 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 193 [2019-10-15 00:55:13,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:13,340 INFO L225 Difference]: With dead ends: 2162 [2019-10-15 00:55:13,340 INFO L226 Difference]: Without dead ends: 1098 [2019-10-15 00:55:13,354 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-15 00:55:13,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2019-10-15 00:55:13,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1085. [2019-10-15 00:55:13,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1085 states. [2019-10-15 00:55:13,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 1408 transitions. [2019-10-15 00:55:13,549 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 1408 transitions. Word has length 193 [2019-10-15 00:55:13,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:13,552 INFO L462 AbstractCegarLoop]: Abstraction has 1085 states and 1408 transitions. [2019-10-15 00:55:13,552 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 00:55:13,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1408 transitions. [2019-10-15 00:55:13,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-15 00:55:13,558 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:13,558 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:13,559 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:13,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:13,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1240012214, now seen corresponding path program 1 times [2019-10-15 00:55:13,559 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:13,559 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749431983] [2019-10-15 00:55:13,560 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:13,560 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:13,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:13,911 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2019-10-15 00:55:13,912 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749431983] [2019-10-15 00:55:13,912 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:13,912 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:55:13,912 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595515443] [2019-10-15 00:55:13,915 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:55:13,915 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:13,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:55:13,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:13,916 INFO L87 Difference]: Start difference. First operand 1085 states and 1408 transitions. Second operand 3 states. [2019-10-15 00:55:14,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:14,084 INFO L93 Difference]: Finished difference Result 2462 states and 3178 transitions. [2019-10-15 00:55:14,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:55:14,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2019-10-15 00:55:14,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:14,102 INFO L225 Difference]: With dead ends: 2462 [2019-10-15 00:55:14,102 INFO L226 Difference]: Without dead ends: 1425 [2019-10-15 00:55:14,107 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:14,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1425 states. [2019-10-15 00:55:14,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1425 to 1376. [2019-10-15 00:55:14,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2019-10-15 00:55:14,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1776 transitions. [2019-10-15 00:55:14,190 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1776 transitions. Word has length 194 [2019-10-15 00:55:14,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:14,191 INFO L462 AbstractCegarLoop]: Abstraction has 1376 states and 1776 transitions. [2019-10-15 00:55:14,192 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:55:14,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1776 transitions. [2019-10-15 00:55:14,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-15 00:55:14,195 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:14,196 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:14,196 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:14,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:14,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1614037506, now seen corresponding path program 1 times [2019-10-15 00:55:14,197 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:14,197 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424827928] [2019-10-15 00:55:14,197 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:14,197 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:14,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:14,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:14,395 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2019-10-15 00:55:14,396 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424827928] [2019-10-15 00:55:14,396 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:14,396 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:55:14,396 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950173339] [2019-10-15 00:55:14,397 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:55:14,397 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:14,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:55:14,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:14,398 INFO L87 Difference]: Start difference. First operand 1376 states and 1776 transitions. Second operand 3 states. [2019-10-15 00:55:14,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:14,558 INFO L93 Difference]: Finished difference Result 2706 states and 3500 transitions. [2019-10-15 00:55:14,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:55:14,559 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2019-10-15 00:55:14,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:14,570 INFO L225 Difference]: With dead ends: 2706 [2019-10-15 00:55:14,570 INFO L226 Difference]: Without dead ends: 1378 [2019-10-15 00:55:14,577 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:14,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1378 states. [2019-10-15 00:55:14,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1378 to 1378. [2019-10-15 00:55:14,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1378 states. [2019-10-15 00:55:14,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 1778 transitions. [2019-10-15 00:55:14,641 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 1778 transitions. Word has length 199 [2019-10-15 00:55:14,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:14,642 INFO L462 AbstractCegarLoop]: Abstraction has 1378 states and 1778 transitions. [2019-10-15 00:55:14,643 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:55:14,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 1778 transitions. [2019-10-15 00:55:14,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-15 00:55:14,648 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:14,649 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:14,649 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:14,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:14,650 INFO L82 PathProgramCache]: Analyzing trace with hash 74906236, now seen corresponding path program 1 times [2019-10-15 00:55:14,650 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:14,651 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841016269] [2019-10-15 00:55:14,651 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:14,651 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:14,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:14,920 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2019-10-15 00:55:14,921 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841016269] [2019-10-15 00:55:14,921 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:14,921 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:55:14,921 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336576056] [2019-10-15 00:55:14,922 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:55:14,922 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:14,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:55:14,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:14,923 INFO L87 Difference]: Start difference. First operand 1378 states and 1778 transitions. Second operand 3 states. [2019-10-15 00:55:14,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:14,969 INFO L93 Difference]: Finished difference Result 1380 states and 1779 transitions. [2019-10-15 00:55:14,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:55:14,969 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2019-10-15 00:55:14,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:14,977 INFO L225 Difference]: With dead ends: 1380 [2019-10-15 00:55:14,977 INFO L226 Difference]: Without dead ends: 1377 [2019-10-15 00:55:14,978 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:14,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2019-10-15 00:55:15,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1377. [2019-10-15 00:55:15,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1377 states. [2019-10-15 00:55:15,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 1776 transitions. [2019-10-15 00:55:15,032 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 1776 transitions. Word has length 199 [2019-10-15 00:55:15,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:15,033 INFO L462 AbstractCegarLoop]: Abstraction has 1377 states and 1776 transitions. [2019-10-15 00:55:15,033 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:55:15,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 1776 transitions. [2019-10-15 00:55:15,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-15 00:55:15,037 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:15,037 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:15,037 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:15,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:15,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1973429129, now seen corresponding path program 1 times [2019-10-15 00:55:15,038 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:15,038 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188752913] [2019-10-15 00:55:15,038 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:15,038 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:15,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:15,409 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2019-10-15 00:55:15,410 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188752913] [2019-10-15 00:55:15,412 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:15,412 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:55:15,412 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186776866] [2019-10-15 00:55:15,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:55:15,413 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:15,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:55:15,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:15,414 INFO L87 Difference]: Start difference. First operand 1377 states and 1776 transitions. Second operand 3 states. [2019-10-15 00:55:15,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:15,477 INFO L93 Difference]: Finished difference Result 1379 states and 1777 transitions. [2019-10-15 00:55:15,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:55:15,477 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2019-10-15 00:55:15,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:15,485 INFO L225 Difference]: With dead ends: 1379 [2019-10-15 00:55:15,485 INFO L226 Difference]: Without dead ends: 1376 [2019-10-15 00:55:15,487 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:15,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2019-10-15 00:55:15,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1376. [2019-10-15 00:55:15,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2019-10-15 00:55:15,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1774 transitions. [2019-10-15 00:55:15,574 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1774 transitions. Word has length 200 [2019-10-15 00:55:15,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:15,577 INFO L462 AbstractCegarLoop]: Abstraction has 1376 states and 1774 transitions. [2019-10-15 00:55:15,577 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:55:15,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1774 transitions. [2019-10-15 00:55:15,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-15 00:55:15,580 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:15,581 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:15,581 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:15,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:15,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1047311137, now seen corresponding path program 1 times [2019-10-15 00:55:15,582 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:15,582 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058353341] [2019-10-15 00:55:15,582 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:15,582 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:15,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:15,851 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2019-10-15 00:55:15,856 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058353341] [2019-10-15 00:55:15,856 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:15,857 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:55:15,857 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805799896] [2019-10-15 00:55:15,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:55:15,858 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:15,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:55:15,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:15,858 INFO L87 Difference]: Start difference. First operand 1376 states and 1774 transitions. Second operand 3 states. [2019-10-15 00:55:15,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:15,937 INFO L93 Difference]: Finished difference Result 1506 states and 1904 transitions. [2019-10-15 00:55:15,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:55:15,937 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2019-10-15 00:55:15,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:15,946 INFO L225 Difference]: With dead ends: 1506 [2019-10-15 00:55:15,946 INFO L226 Difference]: Without dead ends: 1502 [2019-10-15 00:55:15,948 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 00:55:15,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2019-10-15 00:55:16,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1498. [2019-10-15 00:55:16,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1498 states. [2019-10-15 00:55:16,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 1896 transitions. [2019-10-15 00:55:16,017 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 1896 transitions. Word has length 201 [2019-10-15 00:55:16,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:16,018 INFO L462 AbstractCegarLoop]: Abstraction has 1498 states and 1896 transitions. [2019-10-15 00:55:16,018 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:55:16,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 1896 transitions. [2019-10-15 00:55:16,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-15 00:55:16,021 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:16,021 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:16,022 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:16,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:16,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1892547706, now seen corresponding path program 1 times [2019-10-15 00:55:16,022 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:16,022 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114868550] [2019-10-15 00:55:16,023 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:16,023 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:16,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:16,354 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2019-10-15 00:55:16,355 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114868550] [2019-10-15 00:55:16,355 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:16,355 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:55:16,355 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682919649] [2019-10-15 00:55:16,356 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:55:16,356 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:16,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:55:16,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:16,357 INFO L87 Difference]: Start difference. First operand 1498 states and 1896 transitions. Second operand 3 states. [2019-10-15 00:55:16,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:16,438 INFO L93 Difference]: Finished difference Result 1500 states and 1897 transitions. [2019-10-15 00:55:16,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:55:16,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2019-10-15 00:55:16,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:16,457 INFO L225 Difference]: With dead ends: 1500 [2019-10-15 00:55:16,457 INFO L226 Difference]: Without dead ends: 1497 [2019-10-15 00:55:16,459 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:16,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2019-10-15 00:55:16,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1497. [2019-10-15 00:55:16,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1497 states. [2019-10-15 00:55:16,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 1894 transitions. [2019-10-15 00:55:16,574 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 1894 transitions. Word has length 202 [2019-10-15 00:55:16,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:16,574 INFO L462 AbstractCegarLoop]: Abstraction has 1497 states and 1894 transitions. [2019-10-15 00:55:16,575 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:55:16,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 1894 transitions. [2019-10-15 00:55:16,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-15 00:55:16,581 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:16,581 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:16,582 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:16,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:16,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1461103806, now seen corresponding path program 1 times [2019-10-15 00:55:16,582 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:16,583 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623050682] [2019-10-15 00:55:16,583 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:16,583 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:16,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:16,892 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2019-10-15 00:55:16,892 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623050682] [2019-10-15 00:55:16,892 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:16,893 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:55:16,893 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509100418] [2019-10-15 00:55:16,894 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:55:16,894 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:16,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:55:16,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:16,895 INFO L87 Difference]: Start difference. First operand 1497 states and 1894 transitions. Second operand 3 states. [2019-10-15 00:55:17,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:17,051 INFO L93 Difference]: Finished difference Result 4358 states and 5558 transitions. [2019-10-15 00:55:17,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:55:17,052 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2019-10-15 00:55:17,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:17,075 INFO L225 Difference]: With dead ends: 4358 [2019-10-15 00:55:17,075 INFO L226 Difference]: Without dead ends: 2866 [2019-10-15 00:55:17,084 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 00:55:17,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2866 states. [2019-10-15 00:55:17,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2866 to 2858. [2019-10-15 00:55:17,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2858 states. [2019-10-15 00:55:17,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2858 states to 2858 states and 3643 transitions. [2019-10-15 00:55:17,305 INFO L78 Accepts]: Start accepts. Automaton has 2858 states and 3643 transitions. Word has length 203 [2019-10-15 00:55:17,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:17,306 INFO L462 AbstractCegarLoop]: Abstraction has 2858 states and 3643 transitions. [2019-10-15 00:55:17,306 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:55:17,306 INFO L276 IsEmpty]: Start isEmpty. Operand 2858 states and 3643 transitions. [2019-10-15 00:55:17,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2019-10-15 00:55:17,312 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:17,312 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 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] [2019-10-15 00:55:17,313 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:17,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:17,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1904459161, now seen corresponding path program 1 times [2019-10-15 00:55:17,313 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:17,314 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367659170] [2019-10-15 00:55:17,314 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:17,314 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:17,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:17,541 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2019-10-15 00:55:17,541 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367659170] [2019-10-15 00:55:17,542 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:17,542 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:55:17,542 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457255514] [2019-10-15 00:55:17,543 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:55:17,543 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:17,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:55:17,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:17,544 INFO L87 Difference]: Start difference. First operand 2858 states and 3643 transitions. Second operand 3 states. [2019-10-15 00:55:17,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:17,765 INFO L93 Difference]: Finished difference Result 5680 states and 7267 transitions. [2019-10-15 00:55:17,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:55:17,767 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 272 [2019-10-15 00:55:17,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:17,787 INFO L225 Difference]: With dead ends: 5680 [2019-10-15 00:55:17,788 INFO L226 Difference]: Without dead ends: 2870 [2019-10-15 00:55:17,801 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:17,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states. [2019-10-15 00:55:17,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 2860. [2019-10-15 00:55:17,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2860 states. [2019-10-15 00:55:17,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 2860 states and 3645 transitions. [2019-10-15 00:55:17,979 INFO L78 Accepts]: Start accepts. Automaton has 2860 states and 3645 transitions. Word has length 272 [2019-10-15 00:55:17,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:17,980 INFO L462 AbstractCegarLoop]: Abstraction has 2860 states and 3645 transitions. [2019-10-15 00:55:17,980 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:55:17,980 INFO L276 IsEmpty]: Start isEmpty. Operand 2860 states and 3645 transitions. [2019-10-15 00:55:17,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2019-10-15 00:55:17,986 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:17,987 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 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] [2019-10-15 00:55:17,987 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:17,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:17,988 INFO L82 PathProgramCache]: Analyzing trace with hash 224162731, now seen corresponding path program 1 times [2019-10-15 00:55:17,988 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:17,988 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460546663] [2019-10-15 00:55:17,989 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:17,989 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:17,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:18,397 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2019-10-15 00:55:18,398 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460546663] [2019-10-15 00:55:18,398 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:18,398 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:55:18,398 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170063238] [2019-10-15 00:55:18,399 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:55:18,399 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:18,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:55:18,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:18,400 INFO L87 Difference]: Start difference. First operand 2860 states and 3645 transitions. Second operand 3 states. [2019-10-15 00:55:18,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:18,657 INFO L93 Difference]: Finished difference Result 5683 states and 7237 transitions. [2019-10-15 00:55:18,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:55:18,658 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 287 [2019-10-15 00:55:18,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:18,675 INFO L225 Difference]: With dead ends: 5683 [2019-10-15 00:55:18,675 INFO L226 Difference]: Without dead ends: 2869 [2019-10-15 00:55:18,686 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:18,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2869 states. [2019-10-15 00:55:18,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2869 to 2850. [2019-10-15 00:55:18,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2850 states. [2019-10-15 00:55:18,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2850 states to 2850 states and 3629 transitions. [2019-10-15 00:55:18,826 INFO L78 Accepts]: Start accepts. Automaton has 2850 states and 3629 transitions. Word has length 287 [2019-10-15 00:55:18,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:18,827 INFO L462 AbstractCegarLoop]: Abstraction has 2850 states and 3629 transitions. [2019-10-15 00:55:18,827 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:55:18,827 INFO L276 IsEmpty]: Start isEmpty. Operand 2850 states and 3629 transitions. [2019-10-15 00:55:18,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2019-10-15 00:55:18,834 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:18,834 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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] [2019-10-15 00:55:18,835 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:18,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:18,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1145941263, now seen corresponding path program 1 times [2019-10-15 00:55:18,835 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:18,835 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288369334] [2019-10-15 00:55:18,836 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:18,836 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:18,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:18,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:19,160 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2019-10-15 00:55:19,160 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288369334] [2019-10-15 00:55:19,160 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:19,161 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 00:55:19,161 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018088965] [2019-10-15 00:55:19,161 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 00:55:19,162 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:19,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 00:55:19,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:55:19,162 INFO L87 Difference]: Start difference. First operand 2850 states and 3629 transitions. Second operand 7 states. [2019-10-15 00:55:19,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:19,438 INFO L93 Difference]: Finished difference Result 5676 states and 7221 transitions. [2019-10-15 00:55:19,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 00:55:19,439 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 301 [2019-10-15 00:55:19,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:19,456 INFO L225 Difference]: With dead ends: 5676 [2019-10-15 00:55:19,456 INFO L226 Difference]: Without dead ends: 2863 [2019-10-15 00:55:19,466 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:55:19,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2019-10-15 00:55:19,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 2852. [2019-10-15 00:55:19,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2852 states. [2019-10-15 00:55:19,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3627 transitions. [2019-10-15 00:55:19,628 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3627 transitions. Word has length 301 [2019-10-15 00:55:19,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:19,628 INFO L462 AbstractCegarLoop]: Abstraction has 2852 states and 3627 transitions. [2019-10-15 00:55:19,629 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 00:55:19,629 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3627 transitions. [2019-10-15 00:55:19,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2019-10-15 00:55:19,635 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:19,636 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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] [2019-10-15 00:55:19,636 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:19,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:19,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1693092624, now seen corresponding path program 1 times [2019-10-15 00:55:19,637 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:19,637 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086128219] [2019-10-15 00:55:19,637 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:19,637 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:19,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:19,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:19,999 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2019-10-15 00:55:19,999 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086128219] [2019-10-15 00:55:20,000 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:20,000 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:55:20,000 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965695782] [2019-10-15 00:55:20,001 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:55:20,001 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:20,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:55:20,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:20,002 INFO L87 Difference]: Start difference. First operand 2852 states and 3627 transitions. Second operand 3 states. [2019-10-15 00:55:20,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:20,298 INFO L93 Difference]: Finished difference Result 2860 states and 3633 transitions. [2019-10-15 00:55:20,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:55:20,299 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 330 [2019-10-15 00:55:20,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:20,315 INFO L225 Difference]: With dead ends: 2860 [2019-10-15 00:55:20,315 INFO L226 Difference]: Without dead ends: 2857 [2019-10-15 00:55:20,317 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:20,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2019-10-15 00:55:20,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 2851. [2019-10-15 00:55:20,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2851 states. [2019-10-15 00:55:20,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2851 states to 2851 states and 3624 transitions. [2019-10-15 00:55:20,435 INFO L78 Accepts]: Start accepts. Automaton has 2851 states and 3624 transitions. Word has length 330 [2019-10-15 00:55:20,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:20,436 INFO L462 AbstractCegarLoop]: Abstraction has 2851 states and 3624 transitions. [2019-10-15 00:55:20,436 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:55:20,436 INFO L276 IsEmpty]: Start isEmpty. Operand 2851 states and 3624 transitions. [2019-10-15 00:55:20,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2019-10-15 00:55:20,445 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:20,446 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:20,446 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:20,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:20,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1116106025, now seen corresponding path program 1 times [2019-10-15 00:55:20,447 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:20,447 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234402839] [2019-10-15 00:55:20,447 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:20,447 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:20,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:20,864 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2019-10-15 00:55:20,864 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234402839] [2019-10-15 00:55:20,865 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:20,865 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:55:20,865 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920716978] [2019-10-15 00:55:20,866 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:55:20,866 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:20,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:55:20,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:20,866 INFO L87 Difference]: Start difference. First operand 2851 states and 3624 transitions. Second operand 3 states. [2019-10-15 00:55:21,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:21,147 INFO L93 Difference]: Finished difference Result 5656 states and 7190 transitions. [2019-10-15 00:55:21,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:55:21,148 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 361 [2019-10-15 00:55:21,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:21,165 INFO L225 Difference]: With dead ends: 5656 [2019-10-15 00:55:21,165 INFO L226 Difference]: Without dead ends: 2853 [2019-10-15 00:55:21,177 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:21,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2853 states. [2019-10-15 00:55:21,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2853 to 2849. [2019-10-15 00:55:21,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2849 states. [2019-10-15 00:55:21,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2849 states to 2849 states and 3596 transitions. [2019-10-15 00:55:21,306 INFO L78 Accepts]: Start accepts. Automaton has 2849 states and 3596 transitions. Word has length 361 [2019-10-15 00:55:21,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:21,307 INFO L462 AbstractCegarLoop]: Abstraction has 2849 states and 3596 transitions. [2019-10-15 00:55:21,307 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:55:21,307 INFO L276 IsEmpty]: Start isEmpty. Operand 2849 states and 3596 transitions. [2019-10-15 00:55:21,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2019-10-15 00:55:21,317 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:21,318 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:21,318 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:21,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:21,319 INFO L82 PathProgramCache]: Analyzing trace with hash 609374872, now seen corresponding path program 1 times [2019-10-15 00:55:21,319 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:21,319 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473359542] [2019-10-15 00:55:21,319 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:21,319 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:21,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:21,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:21,679 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2019-10-15 00:55:21,679 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473359542] [2019-10-15 00:55:21,680 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:21,680 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 00:55:21,680 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125345229] [2019-10-15 00:55:21,681 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 00:55:21,681 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:21,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 00:55:21,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:55:21,681 INFO L87 Difference]: Start difference. First operand 2849 states and 3596 transitions. Second operand 7 states. [2019-10-15 00:55:21,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:21,821 INFO L93 Difference]: Finished difference Result 2976 states and 3730 transitions. [2019-10-15 00:55:21,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 00:55:21,821 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 361 [2019-10-15 00:55:21,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:21,845 INFO L225 Difference]: With dead ends: 2976 [2019-10-15 00:55:21,845 INFO L226 Difference]: Without dead ends: 2708 [2019-10-15 00:55:21,849 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:55:21,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2708 states. [2019-10-15 00:55:21,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2708 to 2706. [2019-10-15 00:55:21,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2706 states. [2019-10-15 00:55:21,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2706 states to 2706 states and 3389 transitions. [2019-10-15 00:55:21,968 INFO L78 Accepts]: Start accepts. Automaton has 2706 states and 3389 transitions. Word has length 361 [2019-10-15 00:55:21,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:21,969 INFO L462 AbstractCegarLoop]: Abstraction has 2706 states and 3389 transitions. [2019-10-15 00:55:21,969 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 00:55:21,969 INFO L276 IsEmpty]: Start isEmpty. Operand 2706 states and 3389 transitions. [2019-10-15 00:55:21,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2019-10-15 00:55:21,979 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:21,980 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-15 00:55:21,980 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:21,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:21,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1038037118, now seen corresponding path program 1 times [2019-10-15 00:55:21,981 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:21,981 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540247409] [2019-10-15 00:55:21,981 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:21,982 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:21,982 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:22,442 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2019-10-15 00:55:22,443 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540247409] [2019-10-15 00:55:22,443 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:22,443 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 00:55:22,443 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108383030] [2019-10-15 00:55:22,444 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 00:55:22,444 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:22,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 00:55:22,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:55:22,445 INFO L87 Difference]: Start difference. First operand 2706 states and 3389 transitions. Second operand 7 states. [2019-10-15 00:55:22,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:22,567 INFO L93 Difference]: Finished difference Result 3808 states and 4754 transitions. [2019-10-15 00:55:22,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 00:55:22,568 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 365 [2019-10-15 00:55:22,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:22,581 INFO L225 Difference]: With dead ends: 3808 [2019-10-15 00:55:22,581 INFO L226 Difference]: Without dead ends: 2704 [2019-10-15 00:55:22,586 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:55:22,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2704 states. [2019-10-15 00:55:22,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2704 to 2702. [2019-10-15 00:55:22,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2702 states. [2019-10-15 00:55:22,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2702 states to 2702 states and 3383 transitions. [2019-10-15 00:55:22,696 INFO L78 Accepts]: Start accepts. Automaton has 2702 states and 3383 transitions. Word has length 365 [2019-10-15 00:55:22,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:22,697 INFO L462 AbstractCegarLoop]: Abstraction has 2702 states and 3383 transitions. [2019-10-15 00:55:22,697 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 00:55:22,698 INFO L276 IsEmpty]: Start isEmpty. Operand 2702 states and 3383 transitions. [2019-10-15 00:55:22,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2019-10-15 00:55:22,710 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:22,710 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:22,710 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:22,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:22,711 INFO L82 PathProgramCache]: Analyzing trace with hash 95830483, now seen corresponding path program 1 times [2019-10-15 00:55:22,711 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:22,711 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983461222] [2019-10-15 00:55:22,711 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:22,712 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:22,712 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:23,146 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2019-10-15 00:55:23,147 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983461222] [2019-10-15 00:55:23,149 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:23,149 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:55:23,149 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960699878] [2019-10-15 00:55:23,150 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:55:23,150 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:23,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:55:23,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:23,151 INFO L87 Difference]: Start difference. First operand 2702 states and 3383 transitions. Second operand 3 states. [2019-10-15 00:55:23,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:23,486 INFO L93 Difference]: Finished difference Result 6427 states and 8026 transitions. [2019-10-15 00:55:23,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:55:23,487 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 380 [2019-10-15 00:55:23,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:23,527 INFO L225 Difference]: With dead ends: 6427 [2019-10-15 00:55:23,527 INFO L226 Difference]: Without dead ends: 3773 [2019-10-15 00:55:23,544 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:23,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3773 states. [2019-10-15 00:55:23,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3773 to 3694. [2019-10-15 00:55:23,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3694 states. [2019-10-15 00:55:23,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 4604 transitions. [2019-10-15 00:55:23,786 INFO L78 Accepts]: Start accepts. Automaton has 3694 states and 4604 transitions. Word has length 380 [2019-10-15 00:55:23,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:23,787 INFO L462 AbstractCegarLoop]: Abstraction has 3694 states and 4604 transitions. [2019-10-15 00:55:23,787 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:55:23,787 INFO L276 IsEmpty]: Start isEmpty. Operand 3694 states and 4604 transitions. [2019-10-15 00:55:23,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2019-10-15 00:55:23,817 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:23,818 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:23,819 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:23,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:23,820 INFO L82 PathProgramCache]: Analyzing trace with hash -804495563, now seen corresponding path program 1 times [2019-10-15 00:55:23,820 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:23,820 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125509925] [2019-10-15 00:55:23,821 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:23,821 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:23,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:24,319 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2019-10-15 00:55:24,319 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125509925] [2019-10-15 00:55:24,319 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:24,320 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:55:24,320 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015172731] [2019-10-15 00:55:24,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:55:24,321 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:24,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:55:24,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:24,321 INFO L87 Difference]: Start difference. First operand 3694 states and 4604 transitions. Second operand 3 states. [2019-10-15 00:55:24,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:24,462 INFO L93 Difference]: Finished difference Result 7343 states and 9173 transitions. [2019-10-15 00:55:24,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:55:24,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 433 [2019-10-15 00:55:24,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:24,476 INFO L225 Difference]: With dead ends: 7343 [2019-10-15 00:55:24,477 INFO L226 Difference]: Without dead ends: 3697 [2019-10-15 00:55:24,488 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:24,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3697 states. [2019-10-15 00:55:24,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3697 to 3694. [2019-10-15 00:55:24,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3694 states. [2019-10-15 00:55:24,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 4595 transitions. [2019-10-15 00:55:24,633 INFO L78 Accepts]: Start accepts. Automaton has 3694 states and 4595 transitions. Word has length 433 [2019-10-15 00:55:24,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:24,637 INFO L462 AbstractCegarLoop]: Abstraction has 3694 states and 4595 transitions. [2019-10-15 00:55:24,637 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:55:24,637 INFO L276 IsEmpty]: Start isEmpty. Operand 3694 states and 4595 transitions. [2019-10-15 00:55:24,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2019-10-15 00:55:24,652 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:24,654 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:24,654 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:24,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:24,654 INFO L82 PathProgramCache]: Analyzing trace with hash 595273638, now seen corresponding path program 1 times [2019-10-15 00:55:24,655 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:24,655 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39005050] [2019-10-15 00:55:24,655 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:24,655 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:24,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:25,603 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2019-10-15 00:55:25,604 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39005050] [2019-10-15 00:55:25,604 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:25,604 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 00:55:25,604 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765817600] [2019-10-15 00:55:25,605 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 00:55:25,605 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:25,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 00:55:25,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:55:25,606 INFO L87 Difference]: Start difference. First operand 3694 states and 4595 transitions. Second operand 7 states. [2019-10-15 00:55:25,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:25,762 INFO L93 Difference]: Finished difference Result 5172 states and 6412 transitions. [2019-10-15 00:55:25,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 00:55:25,762 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 436 [2019-10-15 00:55:25,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:25,777 INFO L225 Difference]: With dead ends: 5172 [2019-10-15 00:55:25,778 INFO L226 Difference]: Without dead ends: 3693 [2019-10-15 00:55:25,783 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:55:25,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3693 states. [2019-10-15 00:55:25,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3693 to 3691. [2019-10-15 00:55:25,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3691 states. [2019-10-15 00:55:25,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3691 states to 3691 states and 4591 transitions. [2019-10-15 00:55:25,944 INFO L78 Accepts]: Start accepts. Automaton has 3691 states and 4591 transitions. Word has length 436 [2019-10-15 00:55:25,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:25,945 INFO L462 AbstractCegarLoop]: Abstraction has 3691 states and 4591 transitions. [2019-10-15 00:55:25,945 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 00:55:25,946 INFO L276 IsEmpty]: Start isEmpty. Operand 3691 states and 4591 transitions. [2019-10-15 00:55:25,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2019-10-15 00:55:25,960 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:25,961 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:25,961 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:25,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:25,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1698695501, now seen corresponding path program 1 times [2019-10-15 00:55:25,962 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:25,962 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434815714] [2019-10-15 00:55:25,962 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:25,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:25,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:26,349 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2019-10-15 00:55:26,350 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434815714] [2019-10-15 00:55:26,350 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:26,350 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 00:55:26,350 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148262975] [2019-10-15 00:55:26,352 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 00:55:26,352 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:26,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 00:55:26,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:55:26,353 INFO L87 Difference]: Start difference. First operand 3691 states and 4591 transitions. Second operand 7 states. [2019-10-15 00:55:26,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:26,491 INFO L93 Difference]: Finished difference Result 3742 states and 4640 transitions. [2019-10-15 00:55:26,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 00:55:26,491 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 445 [2019-10-15 00:55:26,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:26,504 INFO L225 Difference]: With dead ends: 3742 [2019-10-15 00:55:26,505 INFO L226 Difference]: Without dead ends: 3562 [2019-10-15 00:55:26,507 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:55:26,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3562 states. [2019-10-15 00:55:26,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3562 to 3560. [2019-10-15 00:55:26,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3560 states. [2019-10-15 00:55:26,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 4425 transitions. [2019-10-15 00:55:26,674 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 4425 transitions. Word has length 445 [2019-10-15 00:55:26,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:26,675 INFO L462 AbstractCegarLoop]: Abstraction has 3560 states and 4425 transitions. [2019-10-15 00:55:26,676 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 00:55:26,676 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 4425 transitions. [2019-10-15 00:55:26,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2019-10-15 00:55:26,697 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:26,698 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:26,698 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:26,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:26,699 INFO L82 PathProgramCache]: Analyzing trace with hash 288609336, now seen corresponding path program 1 times [2019-10-15 00:55:26,700 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:26,700 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000286456] [2019-10-15 00:55:26,700 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:26,700 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:26,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:27,228 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2019-10-15 00:55:27,229 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000286456] [2019-10-15 00:55:27,229 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:27,229 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 00:55:27,229 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550853093] [2019-10-15 00:55:27,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 00:55:27,230 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:27,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 00:55:27,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:55:27,231 INFO L87 Difference]: Start difference. First operand 3560 states and 4425 transitions. Second operand 7 states. [2019-10-15 00:55:27,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:27,351 INFO L93 Difference]: Finished difference Result 3605 states and 4469 transitions. [2019-10-15 00:55:27,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 00:55:27,352 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 465 [2019-10-15 00:55:27,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:27,364 INFO L225 Difference]: With dead ends: 3605 [2019-10-15 00:55:27,364 INFO L226 Difference]: Without dead ends: 3551 [2019-10-15 00:55:27,367 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:55:27,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3551 states. [2019-10-15 00:55:27,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3551 to 3549. [2019-10-15 00:55:27,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3549 states. [2019-10-15 00:55:27,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3549 states to 3549 states and 4410 transitions. [2019-10-15 00:55:27,504 INFO L78 Accepts]: Start accepts. Automaton has 3549 states and 4410 transitions. Word has length 465 [2019-10-15 00:55:27,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:27,505 INFO L462 AbstractCegarLoop]: Abstraction has 3549 states and 4410 transitions. [2019-10-15 00:55:27,505 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 00:55:27,505 INFO L276 IsEmpty]: Start isEmpty. Operand 3549 states and 4410 transitions. [2019-10-15 00:55:27,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2019-10-15 00:55:27,519 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:27,521 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:27,521 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:27,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:27,522 INFO L82 PathProgramCache]: Analyzing trace with hash 233776554, now seen corresponding path program 1 times [2019-10-15 00:55:27,522 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:27,522 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860658480] [2019-10-15 00:55:27,522 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:27,523 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:27,523 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:27,983 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2019-10-15 00:55:27,984 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860658480] [2019-10-15 00:55:27,984 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:27,984 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 00:55:27,984 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324108651] [2019-10-15 00:55:27,985 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 00:55:27,985 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:27,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 00:55:27,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:55:27,986 INFO L87 Difference]: Start difference. First operand 3549 states and 4410 transitions. Second operand 7 states. [2019-10-15 00:55:28,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:28,128 INFO L93 Difference]: Finished difference Result 3703 states and 4557 transitions. [2019-10-15 00:55:28,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 00:55:28,129 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 475 [2019-10-15 00:55:28,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:28,130 INFO L225 Difference]: With dead ends: 3703 [2019-10-15 00:55:28,131 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 00:55:28,144 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:55:28,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 00:55:28,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 00:55:28,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 00:55:28,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 00:55:28,146 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 475 [2019-10-15 00:55:28,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:28,147 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 00:55:28,147 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 00:55:28,147 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 00:55:28,147 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 00:55:28,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 00:55:30,475 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 33 [2019-10-15 00:55:32,054 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28