java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 06:03:30,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 06:03:30,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 06:03:30,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 06:03:30,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 06:03:30,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 06:03:30,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 06:03:30,106 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 06:03:30,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 06:03:30,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 06:03:30,110 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 06:03:30,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 06:03:30,111 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 06:03:30,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 06:03:30,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 06:03:30,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 06:03:30,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 06:03:30,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 06:03:30,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 06:03:30,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 06:03:30,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 06:03:30,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 06:03:30,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 06:03:30,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 06:03:30,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 06:03:30,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 06:03:30,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 06:03:30,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 06:03:30,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 06:03:30,138 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 06:03:30,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 06:03:30,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 06:03:30,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 06:03:30,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 06:03:30,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 06:03:30,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 06:03:30,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 06:03:30,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 06:03:30,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 06:03:30,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 06:03:30,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 06:03:30,152 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 [2019-10-07 06:03:30,182 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 06:03:30,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 06:03:30,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 06:03:30,184 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 06:03:30,184 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 06:03:30,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 06:03:30,185 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 06:03:30,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 06:03:30,186 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 06:03:30,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 06:03:30,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 06:03:30,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 06:03:30,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 06:03:30,188 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 06:03:30,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 06:03:30,188 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 06:03:30,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 06:03:30,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 06:03:30,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 06:03:30,189 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 06:03:30,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 06:03:30,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 06:03:30,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 06:03:30,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 06:03:30,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 06:03:30,194 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 06:03:30,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 06:03:30,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 06:03:30,195 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 06:03:30,518 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 06:03:30,541 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 06:03:30,545 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 06:03:30,547 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 06:03:30,548 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 06:03:30,549 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i [2019-10-07 06:03:30,625 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2738fd51a/5785d7a225214aef8661333c3795c856/FLAGd90a876f5 [2019-10-07 06:03:31,503 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 06:03:31,503 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i [2019-10-07 06:03:31,539 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2738fd51a/5785d7a225214aef8661333c3795c856/FLAGd90a876f5 [2019-10-07 06:03:32,011 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2738fd51a/5785d7a225214aef8661333c3795c856 [2019-10-07 06:03:32,022 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 06:03:32,024 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 06:03:32,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 06:03:32,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 06:03:32,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 06:03:32,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 06:03:32" (1/1) ... [2019-10-07 06:03:32,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29359925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 06:03:32, skipping insertion in model container [2019-10-07 06:03:32,034 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 06:03:32" (1/1) ... [2019-10-07 06:03:32,042 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 06:03:32,160 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 06:03:33,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 06:03:33,593 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 06:03:33,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 06:03:34,316 INFO L192 MainTranslator]: Completed translation [2019-10-07 06:03:34,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 06:03:34 WrapperNode [2019-10-07 06:03:34,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 06:03:34,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 06:03:34,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 06:03:34,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 06:03:34,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 06:03:34" (1/1) ... [2019-10-07 06:03:34,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 06:03:34" (1/1) ... [2019-10-07 06:03:34,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 06:03:34" (1/1) ... [2019-10-07 06:03:34,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 06:03:34" (1/1) ... [2019-10-07 06:03:34,601 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 06:03:34" (1/1) ... [2019-10-07 06:03:34,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 06:03:34" (1/1) ... [2019-10-07 06:03:34,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 06:03:34" (1/1) ... [2019-10-07 06:03:34,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 06:03:34,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 06:03:34,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 06:03:34,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 06:03:34,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 06:03:34" (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 [2019-10-07 06:03:34,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 06:03:34,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 06:03:34,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~u32~0 [2019-10-07 06:03:34,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2019-10-07 06:03:34,858 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2019-10-07 06:03:34,860 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-07 06:03:34,862 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-07 06:03:34,862 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_word_swapped [2019-10-07 06:03:34,862 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2019-10-07 06:03:34,862 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_set_clientdata [2019-10-07 06:03:34,863 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_functionality [2019-10-07 06:03:34,865 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_check_functionality [2019-10-07 06:03:34,866 INFO L138 BoogieDeclarations]: Found implementation of procedure SENSORS_LIMIT [2019-10-07 06:03:34,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ADC_TO_MV [2019-10-07 06:03:34,866 INFO L138 BoogieDeclarations]: Found implementation of procedure LIMIT_TO_MV [2019-10-07 06:03:34,867 INFO L138 BoogieDeclarations]: Found implementation of procedure MV_TO_LIMIT [2019-10-07 06:03:34,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ADC_TO_CURR [2019-10-07 06:03:34,872 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_read_adc [2019-10-07 06:03:34,872 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_update_device [2019-10-07 06:03:34,872 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_show_alarm [2019-10-07 06:03:34,872 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_show_input [2019-10-07 06:03:34,873 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_show_current [2019-10-07 06:03:34,873 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_set_limit [2019-10-07 06:03:34,873 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_show_limit [2019-10-07 06:03:34,873 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_cleanup [2019-10-07 06:03:34,873 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_probe [2019-10-07 06:03:34,873 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_remove [2019-10-07 06:03:34,874 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_driver_init [2019-10-07 06:03:34,874 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_driver_exit [2019-10-07 06:03:34,874 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 06:03:34,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2019-10-07 06:03:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2019-10-07 06:03:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2019-10-07 06:03:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2019-10-07 06:03:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2019-10-07 06:03:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2019-10-07 06:03:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-07 06:03:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2019-10-07 06:03:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2019-10-07 06:03:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2019-10-07 06:03:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-07 06:03:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-07 06:03:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-07 06:03:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-07 06:03:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2019-10-07 06:03:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2019-10-07 06:03:34,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-07 06:03:34,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2019-10-07 06:03:34,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-07 06:03:34,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2019-10-07 06:03:34,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2019-10-07 06:03:34,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-07 06:03:34,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-07 06:03:34,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-07 06:03:34,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-07 06:03:34,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-07 06:03:34,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-07 06:03:34,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-07 06:03:34,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-07 06:03:34,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-07 06:03:34,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-07 06:03:34,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-07 06:03:34,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-07 06:03:34,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-07 06:03:34,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-07 06:03:34,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_update_lock_of_max16065_data [2019-10-07 06:03:34,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_update_lock_of_max16065_data [2019-10-07 06:03:34,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_max16065_data [2019-10-07 06:03:34,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_update_lock_of_max16065_data [2019-10-07 06:03:34,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_update_lock_of_max16065_data [2019-10-07 06:03:34,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_update_lock_of_max16065_data [2019-10-07 06:03:34,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_max16065_data [2019-10-07 06:03:34,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-07 06:03:34,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-07 06:03:34,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-07 06:03:34,884 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-07 06:03:34,884 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-07 06:03:34,885 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2019-10-07 06:03:34,885 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_register [2019-10-07 06:03:34,885 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_unregister [2019-10-07 06:03:34,886 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_driver [2019-10-07 06:03:34,886 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_register_driver [2019-10-07 06:03:34,886 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte_data [2019-10-07 06:03:34,886 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_word_data [2019-10-07 06:03:34,886 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte_data [2019-10-07 06:03:34,887 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoull [2019-10-07 06:03:34,887 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-07 06:03:34,888 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-07 06:03:34,888 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-07 06:03:34,888 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_file [2019-10-07 06:03:34,888 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2019-10-07 06:03:34,888 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2019-10-07 06:03:34,888 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-07 06:03:34,889 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-07 06:03:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 06:03:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-07 06:03:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2019-10-07 06:03:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoull [2019-10-07 06:03:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2019-10-07 06:03:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-07 06:03:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-07 06:03:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-07 06:03:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-07 06:03:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-07 06:03:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2019-10-07 06:03:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-07 06:03:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2019-10-07 06:03:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2019-10-07 06:03:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-07 06:03:34,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2019-10-07 06:03:34,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-07 06:03:34,892 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-07 06:03:34,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2019-10-07 06:03:34,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2019-10-07 06:03:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2019-10-07 06:03:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2019-10-07 06:03:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2019-10-07 06:03:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-07 06:03:34,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2019-10-07 06:03:34,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-07 06:03:34,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-07 06:03:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-07 06:03:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-07 06:03:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-07 06:03:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_max16065_data [2019-10-07 06:03:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_max16065_data [2019-10-07 06:03:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 06:03:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_file [2019-10-07 06:03:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2019-10-07 06:03:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2019-10-07 06:03:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2019-10-07 06:03:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-07 06:03:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-07 06:03:34,899 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte_data [2019-10-07 06:03:34,903 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte_data [2019-10-07 06:03:34,903 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_word_data [2019-10-07 06:03:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_word_swapped [2019-10-07 06:03:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2019-10-07 06:03:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_set_clientdata [2019-10-07 06:03:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_register_driver [2019-10-07 06:03:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_driver [2019-10-07 06:03:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_functionality [2019-10-07 06:03:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~u32~0 [2019-10-07 06:03:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 06:03:34,913 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_check_functionality [2019-10-07 06:03:34,913 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_register [2019-10-07 06:03:34,913 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_unregister [2019-10-07 06:03:34,914 INFO L130 BoogieDeclarations]: Found specification of procedure SENSORS_LIMIT [2019-10-07 06:03:34,914 INFO L130 BoogieDeclarations]: Found specification of procedure ADC_TO_MV [2019-10-07 06:03:34,914 INFO L130 BoogieDeclarations]: Found specification of procedure LIMIT_TO_MV [2019-10-07 06:03:34,915 INFO L130 BoogieDeclarations]: Found specification of procedure MV_TO_LIMIT [2019-10-07 06:03:34,915 INFO L130 BoogieDeclarations]: Found specification of procedure ADC_TO_CURR [2019-10-07 06:03:34,915 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_read_adc [2019-10-07 06:03:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_update_device [2019-10-07 06:03:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 06:03:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 06:03:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_show_alarm [2019-10-07 06:03:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 06:03:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_show_input [2019-10-07 06:03:34,917 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_show_current [2019-10-07 06:03:34,917 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_set_limit [2019-10-07 06:03:34,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 06:03:34,917 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_show_limit [2019-10-07 06:03:34,917 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_cleanup [2019-10-07 06:03:34,917 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_probe [2019-10-07 06:03:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 06:03:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_remove [2019-10-07 06:03:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_driver_init [2019-10-07 06:03:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_driver_exit [2019-10-07 06:03:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-07 06:03:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-07 06:03:34,919 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 06:03:34,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-07 06:03:34,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-07 06:03:34,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2019-10-07 06:03:34,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2019-10-07 06:03:34,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2019-10-07 06:03:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-07 06:03:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2019-10-07 06:03:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-07 06:03:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-07 06:03:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-07 06:03:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-07 06:03:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-07 06:03:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-07 06:03:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-07 06:03:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-07 06:03:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-07 06:03:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_update_lock_of_max16065_data [2019-10-07 06:03:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_update_lock_of_max16065_data [2019-10-07 06:03:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_update_lock_of_max16065_data [2019-10-07 06:03:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_update_lock_of_max16065_data [2019-10-07 06:03:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_update_lock_of_max16065_data [2019-10-07 06:03:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-07 06:03:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-07 06:03:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 06:03:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-07 06:03:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 06:03:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 06:03:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-07 06:03:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 06:03:53,747 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 06:03:53,747 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-07 06:03:53,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 06:03:53 BoogieIcfgContainer [2019-10-07 06:03:53,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 06:03:53,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 06:03:53,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 06:03:53,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 06:03:53,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 06:03:32" (1/3) ... [2019-10-07 06:03:53,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610a98ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 06:03:53, skipping insertion in model container [2019-10-07 06:03:53,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 06:03:34" (2/3) ... [2019-10-07 06:03:53,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610a98ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 06:03:53, skipping insertion in model container [2019-10-07 06:03:53,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 06:03:53" (3/3) ... [2019-10-07 06:03:53,758 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i [2019-10-07 06:03:53,769 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 06:03:53,780 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 06:03:53,792 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 06:03:53,829 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 06:03:53,830 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 06:03:53,830 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 06:03:53,830 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 06:03:53,830 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 06:03:53,830 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 06:03:53,830 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 06:03:53,830 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 06:03:53,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states. [2019-10-07 06:03:53,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-07 06:03:53,890 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 06:03:53,891 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 06:03:53,894 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 06:03:53,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 06:03:53,900 INFO L82 PathProgramCache]: Analyzing trace with hash -89219890, now seen corresponding path program 1 times [2019-10-07 06:03:53,909 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 06:03:53,909 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:03:53,909 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:03:53,910 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:03:53,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 06:03:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 06:03:55,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 06:03:55,497 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:03:55,498 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 06:03:55,498 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 06:03:55,506 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 06:03:55,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 06:03:55,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:03:55,526 INFO L87 Difference]: Start difference. First operand 1071 states. Second operand 3 states. [2019-10-07 06:03:56,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 06:03:56,616 INFO L93 Difference]: Finished difference Result 2990 states and 4982 transitions. [2019-10-07 06:03:56,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 06:03:56,618 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2019-10-07 06:03:56,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 06:03:56,669 INFO L225 Difference]: With dead ends: 2990 [2019-10-07 06:03:56,669 INFO L226 Difference]: Without dead ends: 1982 [2019-10-07 06:03:56,685 INFO L606 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 [2019-10-07 06:03:56,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2019-10-07 06:03:56,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 1954. [2019-10-07 06:03:56,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1954 states. [2019-10-07 06:03:56,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 3149 transitions. [2019-10-07 06:03:56,928 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 3149 transitions. Word has length 41 [2019-10-07 06:03:56,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 06:03:56,929 INFO L462 AbstractCegarLoop]: Abstraction has 1954 states and 3149 transitions. [2019-10-07 06:03:56,929 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 06:03:56,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 3149 transitions. [2019-10-07 06:03:56,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-07 06:03:56,934 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 06:03:56,934 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 06:03:56,934 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 06:03:56,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 06:03:56,935 INFO L82 PathProgramCache]: Analyzing trace with hash 2057873208, now seen corresponding path program 1 times [2019-10-07 06:03:56,935 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 06:03:56,935 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:03:56,936 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:03:56,936 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:03:56,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 06:03:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 06:03:57,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 06:03:57,554 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:03:57,554 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 06:03:57,555 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 06:03:57,557 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 06:03:57,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 06:03:57,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:03:57,558 INFO L87 Difference]: Start difference. First operand 1954 states and 3149 transitions. Second operand 3 states. [2019-10-07 06:03:58,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 06:03:58,511 INFO L93 Difference]: Finished difference Result 5835 states and 9413 transitions. [2019-10-07 06:03:58,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 06:03:58,512 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2019-10-07 06:03:58,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 06:03:58,539 INFO L225 Difference]: With dead ends: 5835 [2019-10-07 06:03:58,539 INFO L226 Difference]: Without dead ends: 3890 [2019-10-07 06:03:58,549 INFO L606 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 [2019-10-07 06:03:58,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3890 states. [2019-10-07 06:03:58,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3890 to 3862. [2019-10-07 06:03:58,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3862 states. [2019-10-07 06:03:58,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 6241 transitions. [2019-10-07 06:03:58,729 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 6241 transitions. Word has length 42 [2019-10-07 06:03:58,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 06:03:58,729 INFO L462 AbstractCegarLoop]: Abstraction has 3862 states and 6241 transitions. [2019-10-07 06:03:58,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 06:03:58,730 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 6241 transitions. [2019-10-07 06:03:58,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-07 06:03:58,733 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 06:03:58,733 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 06:03:58,733 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 06:03:58,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 06:03:58,733 INFO L82 PathProgramCache]: Analyzing trace with hash -2007980211, now seen corresponding path program 1 times [2019-10-07 06:03:58,734 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 06:03:58,734 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:03:58,734 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:03:58,734 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:03:58,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 06:03:58,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 06:03:59,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 06:03:59,312 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:03:59,313 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 06:03:59,313 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 06:03:59,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 06:03:59,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 06:03:59,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:03:59,314 INFO L87 Difference]: Start difference. First operand 3862 states and 6241 transitions. Second operand 3 states. [2019-10-07 06:04:00,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 06:04:00,241 INFO L93 Difference]: Finished difference Result 11551 states and 18675 transitions. [2019-10-07 06:04:00,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 06:04:00,241 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2019-10-07 06:04:00,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 06:04:00,304 INFO L225 Difference]: With dead ends: 11551 [2019-10-07 06:04:00,304 INFO L226 Difference]: Without dead ends: 7698 [2019-10-07 06:04:00,328 INFO L606 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 [2019-10-07 06:04:00,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7698 states. [2019-10-07 06:04:01,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7698 to 7670. [2019-10-07 06:04:01,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7670 states. [2019-10-07 06:04:01,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7670 states to 7670 states and 12409 transitions. [2019-10-07 06:04:01,565 INFO L78 Accepts]: Start accepts. Automaton has 7670 states and 12409 transitions. Word has length 45 [2019-10-07 06:04:01,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 06:04:01,565 INFO L462 AbstractCegarLoop]: Abstraction has 7670 states and 12409 transitions. [2019-10-07 06:04:01,566 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 06:04:01,566 INFO L276 IsEmpty]: Start isEmpty. Operand 7670 states and 12409 transitions. [2019-10-07 06:04:01,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-07 06:04:01,572 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 06:04:01,572 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 06:04:01,572 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 06:04:01,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 06:04:01,573 INFO L82 PathProgramCache]: Analyzing trace with hash -43828607, now seen corresponding path program 1 times [2019-10-07 06:04:01,573 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 06:04:01,574 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:04:01,574 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:04:01,574 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:04:01,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 06:04:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 06:04:02,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 06:04:02,279 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:04:02,280 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 06:04:02,281 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 06:04:02,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 06:04:02,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 06:04:02,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:04:02,282 INFO L87 Difference]: Start difference. First operand 7670 states and 12409 transitions. Second operand 3 states. [2019-10-07 06:04:03,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 06:04:03,420 INFO L93 Difference]: Finished difference Result 22959 states and 37151 transitions. [2019-10-07 06:04:03,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 06:04:03,420 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2019-10-07 06:04:03,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 06:04:03,539 INFO L225 Difference]: With dead ends: 22959 [2019-10-07 06:04:03,539 INFO L226 Difference]: Without dead ends: 15298 [2019-10-07 06:04:03,579 INFO L606 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 [2019-10-07 06:04:03,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15298 states. [2019-10-07 06:04:04,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15298 to 15270. [2019-10-07 06:04:04,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15270 states. [2019-10-07 06:04:04,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15270 states to 15270 states and 24713 transitions. [2019-10-07 06:04:04,647 INFO L78 Accepts]: Start accepts. Automaton has 15270 states and 24713 transitions. Word has length 49 [2019-10-07 06:04:04,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 06:04:04,648 INFO L462 AbstractCegarLoop]: Abstraction has 15270 states and 24713 transitions. [2019-10-07 06:04:04,648 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 06:04:04,648 INFO L276 IsEmpty]: Start isEmpty. Operand 15270 states and 24713 transitions. [2019-10-07 06:04:04,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-07 06:04:04,653 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 06:04:04,653 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 06:04:04,653 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 06:04:04,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 06:04:04,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1546350446, now seen corresponding path program 1 times [2019-10-07 06:04:04,655 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 06:04:04,655 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:04:04,655 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:04:04,655 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:04:04,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 06:04:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 06:04:05,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 06:04:05,322 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:04:05,322 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 06:04:05,323 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 06:04:05,323 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 06:04:05,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 06:04:05,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:04:05,324 INFO L87 Difference]: Start difference. First operand 15270 states and 24713 transitions. Second operand 3 states. [2019-10-07 06:04:06,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 06:04:06,903 INFO L93 Difference]: Finished difference Result 45727 states and 74007 transitions. [2019-10-07 06:04:06,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 06:04:06,904 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2019-10-07 06:04:06,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 06:04:07,094 INFO L225 Difference]: With dead ends: 45727 [2019-10-07 06:04:07,097 INFO L226 Difference]: Without dead ends: 30466 [2019-10-07 06:04:07,185 INFO L606 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 [2019-10-07 06:04:07,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30466 states. [2019-10-07 06:04:08,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30466 to 30438. [2019-10-07 06:04:08,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30438 states. [2019-10-07 06:04:08,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30438 states to 30438 states and 49257 transitions. [2019-10-07 06:04:08,796 INFO L78 Accepts]: Start accepts. Automaton has 30438 states and 49257 transitions. Word has length 54 [2019-10-07 06:04:08,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 06:04:08,796 INFO L462 AbstractCegarLoop]: Abstraction has 30438 states and 49257 transitions. [2019-10-07 06:04:08,796 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 06:04:08,797 INFO L276 IsEmpty]: Start isEmpty. Operand 30438 states and 49257 transitions. [2019-10-07 06:04:08,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-07 06:04:08,800 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 06:04:08,801 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 06:04:08,801 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 06:04:08,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 06:04:08,801 INFO L82 PathProgramCache]: Analyzing trace with hash -889642717, now seen corresponding path program 1 times [2019-10-07 06:04:08,802 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 06:04:08,802 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:04:08,802 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:04:08,802 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:04:08,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 06:04:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 06:04:09,334 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:04:09,335 INFO L325 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2019-10-07 06:04:09,335 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 06:04:09,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 06:04:14,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 06:04:14,283 INFO L256 TraceCheckSpWp]: Trace formula consists of 11180 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 06:04:14,313 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 06:04:14,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 06:04:14,366 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 06:04:14,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 06:04:14,459 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-07 06:04:14,460 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-07 06:04:14,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 06:04:14,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 06:04:14,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:04:14,461 INFO L87 Difference]: Start difference. First operand 30438 states and 49257 transitions. Second operand 3 states. [2019-10-07 06:04:16,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 06:04:16,725 INFO L93 Difference]: Finished difference Result 91039 states and 147303 transitions. [2019-10-07 06:04:16,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 06:04:16,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2019-10-07 06:04:16,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 06:04:17,064 INFO L225 Difference]: With dead ends: 91039 [2019-10-07 06:04:17,064 INFO L226 Difference]: Without dead ends: 60610 [2019-10-07 06:04:17,166 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:04:17,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60610 states. [2019-10-07 06:04:19,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60610 to 60582. [2019-10-07 06:04:19,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60582 states. [2019-10-07 06:04:19,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60582 states to 60582 states and 97993 transitions. [2019-10-07 06:04:19,871 INFO L78 Accepts]: Start accepts. Automaton has 60582 states and 97993 transitions. Word has length 59 [2019-10-07 06:04:19,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 06:04:19,871 INFO L462 AbstractCegarLoop]: Abstraction has 60582 states and 97993 transitions. [2019-10-07 06:04:19,871 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 06:04:19,871 INFO L276 IsEmpty]: Start isEmpty. Operand 60582 states and 97993 transitions. [2019-10-07 06:04:19,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-10-07 06:04:19,873 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 06:04:19,874 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 06:04:20,088 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 06:04:20,091 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 06:04:20,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 06:04:20,092 INFO L82 PathProgramCache]: Analyzing trace with hash -270366501, now seen corresponding path program 1 times [2019-10-07 06:04:20,092 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 06:04:20,092 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:04:20,092 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:04:20,092 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:04:20,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 06:04:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 06:04:20,560 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:04:20,560 INFO L325 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2019-10-07 06:04:20,560 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 06:04:20,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 06:04:25,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 06:04:25,743 INFO L256 TraceCheckSpWp]: Trace formula consists of 11186 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 06:04:25,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 06:04:25,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 06:04:25,798 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 06:04:25,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 06:04:25,877 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-07 06:04:25,877 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-07 06:04:25,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 06:04:25,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 06:04:25,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:04:25,879 INFO L87 Difference]: Start difference. First operand 60582 states and 97993 transitions. Second operand 3 states. [2019-10-07 06:04:28,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 06:04:28,588 INFO L93 Difference]: Finished difference Result 181215 states and 293063 transitions. [2019-10-07 06:04:28,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 06:04:28,589 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2019-10-07 06:04:28,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 06:04:29,276 INFO L225 Difference]: With dead ends: 181215 [2019-10-07 06:04:29,276 INFO L226 Difference]: Without dead ends: 120642 [2019-10-07 06:04:29,466 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:04:29,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120642 states. [2019-10-07 06:04:35,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120642 to 120614. [2019-10-07 06:04:35,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120614 states. [2019-10-07 06:04:35,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120614 states to 120614 states and 194985 transitions. [2019-10-07 06:04:35,487 INFO L78 Accepts]: Start accepts. Automaton has 120614 states and 194985 transitions. Word has length 62 [2019-10-07 06:04:35,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 06:04:35,488 INFO L462 AbstractCegarLoop]: Abstraction has 120614 states and 194985 transitions. [2019-10-07 06:04:35,488 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 06:04:35,488 INFO L276 IsEmpty]: Start isEmpty. Operand 120614 states and 194985 transitions. [2019-10-07 06:04:35,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-10-07 06:04:35,490 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 06:04:35,491 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 06:04:35,705 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 06:04:35,706 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 06:04:35,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 06:04:35,706 INFO L82 PathProgramCache]: Analyzing trace with hash -2032254141, now seen corresponding path program 1 times [2019-10-07 06:04:35,707 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 06:04:35,707 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:04:35,707 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:04:35,707 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:04:35,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 06:04:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 06:04:36,087 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:04:36,087 INFO L325 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2019-10-07 06:04:36,087 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 06:04:36,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 06:04:39,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 06:04:40,046 INFO L256 TraceCheckSpWp]: Trace formula consists of 11196 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 06:04:40,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 06:04:40,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 06:04:40,096 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 06:04:40,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 06:04:40,171 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-07 06:04:40,171 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-07 06:04:40,171 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 06:04:40,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 06:04:40,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:04:40,172 INFO L87 Difference]: Start difference. First operand 120614 states and 194985 transitions. Second operand 3 states. [2019-10-07 06:04:47,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 06:04:47,034 INFO L93 Difference]: Finished difference Result 360799 states and 583143 transitions. [2019-10-07 06:04:47,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 06:04:47,034 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2019-10-07 06:04:47,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 06:04:48,078 INFO L225 Difference]: With dead ends: 360799 [2019-10-07 06:04:48,079 INFO L226 Difference]: Without dead ends: 240194 [2019-10-07 06:04:48,424 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:04:48,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240194 states. [2019-10-07 06:04:58,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240194 to 240166. [2019-10-07 06:04:58,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240166 states. [2019-10-07 06:04:59,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240166 states to 240166 states and 388009 transitions. [2019-10-07 06:04:59,615 INFO L78 Accepts]: Start accepts. Automaton has 240166 states and 388009 transitions. Word has length 67 [2019-10-07 06:04:59,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 06:04:59,616 INFO L462 AbstractCegarLoop]: Abstraction has 240166 states and 388009 transitions. [2019-10-07 06:04:59,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 06:04:59,616 INFO L276 IsEmpty]: Start isEmpty. Operand 240166 states and 388009 transitions. [2019-10-07 06:04:59,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-07 06:04:59,618 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 06:04:59,618 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 06:04:59,833 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 06:04:59,834 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 06:04:59,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 06:04:59,834 INFO L82 PathProgramCache]: Analyzing trace with hash -722673602, now seen corresponding path program 1 times [2019-10-07 06:04:59,834 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 06:04:59,834 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:04:59,835 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:04:59,835 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:04:59,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 06:05:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 06:05:00,226 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:05:00,227 INFO L325 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2019-10-07 06:05:00,227 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 06:05:00,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 06:05:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 06:05:03,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 11176 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 06:05:03,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 06:05:03,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 06:05:03,547 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 06:05:03,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 06:05:03,634 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-07 06:05:03,635 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-07 06:05:03,635 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 06:05:03,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 06:05:03,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:05:03,636 INFO L87 Difference]: Start difference. First operand 240166 states and 388009 transitions. Second operand 3 states. [2019-10-07 06:05:16,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 06:05:16,284 INFO L93 Difference]: Finished difference Result 718431 states and 1160423 transitions. [2019-10-07 06:05:16,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 06:05:16,285 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2019-10-07 06:05:16,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 06:05:18,050 INFO L225 Difference]: With dead ends: 718431 [2019-10-07 06:05:18,050 INFO L226 Difference]: Without dead ends: 478274 [2019-10-07 06:05:18,566 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:05:18,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478274 states. [2019-10-07 06:05:47,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478274 to 478246. [2019-10-07 06:05:47,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478246 states. [2019-10-07 06:05:50,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478246 states to 478246 states and 772137 transitions. [2019-10-07 06:05:50,526 INFO L78 Accepts]: Start accepts. Automaton has 478246 states and 772137 transitions. Word has length 57 [2019-10-07 06:05:50,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 06:05:50,526 INFO L462 AbstractCegarLoop]: Abstraction has 478246 states and 772137 transitions. [2019-10-07 06:05:50,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 06:05:50,527 INFO L276 IsEmpty]: Start isEmpty. Operand 478246 states and 772137 transitions. [2019-10-07 06:05:50,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-10-07 06:05:50,534 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 06:05:50,534 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 06:05:50,735 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 06:05:50,736 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 06:05:50,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 06:05:50,736 INFO L82 PathProgramCache]: Analyzing trace with hash -940684601, now seen corresponding path program 1 times [2019-10-07 06:05:50,737 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 06:05:50,737 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:05:50,737 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:05:50,737 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:05:50,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 06:05:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 06:05:51,135 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:05:51,135 INFO L325 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2019-10-07 06:05:51,135 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 06:05:51,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 06:05:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 06:05:54,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 11194 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 06:05:54,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 06:05:54,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 06:05:54,433 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 06:05:54,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 06:05:54,505 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-07 06:05:54,505 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-07 06:05:54,506 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 06:05:54,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 06:05:54,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:05:54,507 INFO L87 Difference]: Start difference. First operand 478246 states and 772137 transitions. Second operand 3 states. [2019-10-07 06:06:27,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 06:06:27,249 INFO L93 Difference]: Finished difference Result 1430623 states and 2309223 transitions. [2019-10-07 06:06:27,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 06:06:27,250 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2019-10-07 06:06:27,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 06:06:31,702 INFO L225 Difference]: With dead ends: 1430623 [2019-10-07 06:06:31,702 INFO L226 Difference]: Without dead ends: 952386 [2019-10-07 06:06:32,885 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:06:35,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952386 states. [2019-10-07 06:07:45,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952386 to 952358. [2019-10-07 06:07:45,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 952358 states.