java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 11:20:43,170 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 11:20:43,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 11:20:43,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 11:20:43,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 11:20:43,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 11:20:43,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 11:20:43,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 11:20:43,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 11:20:43,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 11:20:43,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 11:20:43,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 11:20:43,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 11:20:43,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 11:20:43,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 11:20:43,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 11:20:43,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 11:20:43,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 11:20:43,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 11:20:43,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 11:20:43,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 11:20:43,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 11:20:43,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 11:20:43,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 11:20:43,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 11:20:43,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 11:20:43,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 11:20:43,221 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 11:20:43,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 11:20:43,222 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 11:20:43,222 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 11:20:43,223 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 11:20:43,224 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 11:20:43,224 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 11:20:43,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 11:20:43,226 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 11:20:43,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 11:20:43,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 11:20:43,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 11:20:43,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 11:20:43,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 11:20:43,229 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 11:20:43,243 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 11:20:43,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 11:20:43,245 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 11:20:43,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 11:20:43,246 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 11:20:43,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 11:20:43,246 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 11:20:43,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 11:20:43,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 11:20:43,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 11:20:43,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 11:20:43,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 11:20:43,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 11:20:43,248 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 11:20:43,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 11:20:43,248 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 11:20:43,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 11:20:43,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 11:20:43,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 11:20:43,250 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 11:20:43,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 11:20:43,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 11:20:43,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 11:20:43,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 11:20:43,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 11:20:43,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 11:20:43,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 11:20:43,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 11:20:43,252 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 11:20:43,555 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 11:20:43,569 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 11:20:43,573 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 11:20:43,574 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 11:20:43,575 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 11:20:43,575 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2019-10-07 11:20:43,641 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c39ef763d/1e2c84d12b9f4686bda8acfe9f81b94e/FLAG1cf4373e8 [2019-10-07 11:20:44,470 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 11:20:44,471 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2019-10-07 11:20:44,504 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c39ef763d/1e2c84d12b9f4686bda8acfe9f81b94e/FLAG1cf4373e8 [2019-10-07 11:20:44,986 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c39ef763d/1e2c84d12b9f4686bda8acfe9f81b94e [2019-10-07 11:20:44,997 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 11:20:44,999 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 11:20:45,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 11:20:45,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 11:20:45,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 11:20:45,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 11:20:44" (1/1) ... [2019-10-07 11:20:45,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1face918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 11:20:45, skipping insertion in model container [2019-10-07 11:20:45,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 11:20:44" (1/1) ... [2019-10-07 11:20:45,016 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 11:20:45,146 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 11:20:46,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 11:20:47,018 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 11:20:47,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 11:20:47,684 INFO L192 MainTranslator]: Completed translation [2019-10-07 11:20:47,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 11:20:47 WrapperNode [2019-10-07 11:20:47,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 11:20:47,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 11:20:47,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 11:20:47,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 11:20:47,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 11:20:47" (1/1) ... [2019-10-07 11:20:47,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 11:20:47" (1/1) ... [2019-10-07 11:20:47,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 11:20:47" (1/1) ... [2019-10-07 11:20:47,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 11:20:47" (1/1) ... [2019-10-07 11:20:47,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 11:20:47" (1/1) ... [2019-10-07 11:20:48,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 11:20:47" (1/1) ... [2019-10-07 11:20:48,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 11:20:47" (1/1) ... [2019-10-07 11:20:48,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 11:20:48,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 11:20:48,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 11:20:48,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 11:20:48,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 11:20:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 11:20:48,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 11:20:48,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 11:20:48,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-10-07 11:20:48,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-10-07 11:20:48,166 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-07 11:20:48,167 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-10-07 11:20:48,168 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-10-07 11:20:48,168 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-07 11:20:48,168 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-07 11:20:48,169 INFO L138 BoogieDeclarations]: Found implementation of procedure current_top_of_stack [2019-10-07 11:20:48,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-07 11:20:48,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-07 11:20:48,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-07 11:20:48,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-07 11:20:48,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-07 11:20:48,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-07 11:20:48,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-07 11:20:48,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-07 11:20:48,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-07 11:20:48,174 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2019-10-07 11:20:48,174 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-07 11:20:48,174 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-07 11:20:48,175 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-07 11:20:48,175 INFO L138 BoogieDeclarations]: Found implementation of procedure need_resched [2019-10-07 11:20:48,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-07 11:20:48,175 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-07 11:20:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-10-07 11:20:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2019-10-07 11:20:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure register_chrdev [2019-10-07 11:20:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2019-10-07 11:20:48,177 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-07 11:20:48,177 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-07 11:20:48,177 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-10-07 11:20:48,177 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_yield_blocking [2019-10-07 11:20:48,178 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_claim_parport_or_block [2019-10-07 11:20:48,178 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_release_parport [2019-10-07 11:20:48,179 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_preempt [2019-10-07 11:20:48,179 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_negotiate [2019-10-07 11:20:48,179 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_reset [2019-10-07 11:20:48,179 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_error [2019-10-07 11:20:48,179 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_check_status [2019-10-07 11:20:48,179 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_wait_ready [2019-10-07 11:20:48,180 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_write [2019-10-07 11:20:48,180 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_read [2019-10-07 11:20:48,180 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_open [2019-10-07 11:20:48,180 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_release [2019-10-07 11:20:48,180 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_do_ioctl [2019-10-07 11:20:48,181 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_set_timeout [2019-10-07 11:20:48,181 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_ioctl [2019-10-07 11:20:48,181 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_compat_ioctl [2019-10-07 11:20:48,181 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_console_write [2019-10-07 11:20:48,181 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_register [2019-10-07 11:20:48,181 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_attach [2019-10-07 11:20:48,182 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_detach [2019-10-07 11:20:48,182 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_init [2019-10-07 11:20:48,182 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_init_module [2019-10-07 11:20:48,182 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_cleanup_module [2019-10-07 11:20:48,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_3 [2019-10-07 11:20:48,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_parport_driver_1 [2019-10-07 11:20:48,183 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 11:20:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-07 11:20:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-07 11:20:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2019-10-07 11:20:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2019-10-07 11:20:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-07 11:20:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2019-10-07 11:20:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_9 [2019-10-07 11:20:48,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_10 [2019-10-07 11:20:48,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-07 11:20:48,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_12 [2019-10-07 11:20:48,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2019-10-07 11:20:48,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_14 [2019-10-07 11:20:48,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2019-10-07 11:20:48,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_16 [2019-10-07 11:20:48,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_17 [2019-10-07 11:20:48,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_18 [2019-10-07 11:20:48,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_19 [2019-10-07 11:20:48,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_20 [2019-10-07 11:20:48,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_21 [2019-10-07 11:20:48,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_22 [2019-10-07 11:20:48,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_23 [2019-10-07 11:20:48,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_24 [2019-10-07 11:20:48,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_25 [2019-10-07 11:20:48,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-07 11:20:48,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2019-10-07 11:20:48,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-07 11:20:48,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-07 11:20:48,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-07 11:20:48,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-07 11:20:48,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-07 11:20:48,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-07 11:20:48,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-07 11:20:48,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-07 11:20:48,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-07 11:20:48,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-07 11:20:48,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-07 11:20:48,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-07 11:20:48,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-07 11:20:48,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-07 11:20:48,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-07 11:20:48,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-07 11:20:48,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-07 11:20:48,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-07 11:20:48,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-07 11:20:48,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-07 11:20:48,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-07 11:20:48,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-07 11:20:48,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2019-10-07 11:20:48,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2019-10-07 11:20:48,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2019-10-07 11:20:48,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2019-10-07 11:20:48,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lp_mutex [2019-10-07 11:20:48,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lp_mutex [2019-10-07 11:20:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lp_mutex [2019-10-07 11:20:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lp_mutex [2019-10-07 11:20:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lp_mutex [2019-10-07 11:20:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lp_mutex [2019-10-07 11:20:48,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lp_mutex [2019-10-07 11:20:48,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lp_mutex [2019-10-07 11:20:48,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lp_mutex [2019-10-07 11:20:48,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lp_mutex [2019-10-07 11:20:48,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lp_mutex [2019-10-07 11:20:48,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-07 11:20:48,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-07 11:20:48,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-07 11:20:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-07 11:20:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-07 11:20:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-07 11:20:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-07 11:20:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2019-10-07 11:20:48,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-07 11:20:48,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-07 11:20:48,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-07 11:20:48,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2019-10-07 11:20:48,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_port_mutex_of_lp_struct [2019-10-07 11:20:48,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_port_mutex_of_lp_struct [2019-10-07 11:20:48,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_port_mutex_of_lp_struct [2019-10-07 11:20:48,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_port_mutex_of_lp_struct [2019-10-07 11:20:48,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_port_mutex_of_lp_struct [2019-10-07 11:20:48,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2019-10-07 11:20:48,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_port_mutex_of_lp_struct [2019-10-07 11:20:48,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_port_mutex_of_lp_struct [2019-10-07 11:20:48,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_port_mutex_of_lp_struct [2019-10-07 11:20:48,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_port_mutex_of_lp_struct [2019-10-07 11:20:48,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-07 11:20:48,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ___might_sleep [2019-10-07 11:20:48,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2019-10-07 11:20:48,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-07 11:20:48,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-07 11:20:48,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-10-07 11:20:48,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-07 11:20:48,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-10-07 11:20:48,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-07 11:20:48,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __parport_register_driver [2019-10-07 11:20:48,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __register_chrdev [2019-10-07 11:20:48,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __unregister_chrdev [2019-10-07 11:20:48,226 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2019-10-07 11:20:48,226 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-07 11:20:48,227 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-07 11:20:48,227 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2019-10-07 11:20:48,227 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_get_timeval [2019-10-07 11:20:48,227 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-10-07 11:20:48,227 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-10-07 11:20:48,227 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-07 11:20:48,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_close_1 [2019-10-07 11:20:48,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-07 11:20:48,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_open_1 [2019-10-07 11:20:48,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2019-10-07 11:20:48,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2019-10-07 11:20:48,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2019-10-07 11:20:48,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2019-10-07 11:20:48,229 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-07 11:20:48,229 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-10-07 11:20:48,229 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-07 11:20:48,229 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-07 11:20:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2019-10-07 11:20:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_claim [2019-10-07 11:20:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_claim_or_block [2019-10-07 11:20:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_negotiate [2019-10-07 11:20:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_read [2019-10-07 11:20:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_register_device [2019-10-07 11:20:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_release [2019-10-07 11:20:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_set_timeout [2019-10-07 11:20:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_unregister_device [2019-10-07 11:20:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_unregister_driver [2019-10-07 11:20:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_write [2019-10-07 11:20:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-10-07 11:20:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-07 11:20:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure register_console [2019-10-07 11:20:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-07 11:20:48,233 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2019-10-07 11:20:48,233 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2019-10-07 11:20:48,233 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_console [2019-10-07 11:20:48,233 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2019-10-07 11:20:48,233 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-07 11:20:48,233 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-07 11:20:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-07 11:20:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-07 11:20:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 11:20:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-07 11:20:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-07 11:20:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-10-07 11:20:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-10-07 11:20:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-07 11:20:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-07 11:20:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure ___might_sleep [2019-10-07 11:20:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-10-07 11:20:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2019-10-07 11:20:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-07 11:20:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-07 11:20:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-07 11:20:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-07 11:20:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-07 11:20:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2019-10-07 11:20:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2019-10-07 11:20:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-07 11:20:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-07 11:20:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure current_top_of_stack [2019-10-07 11:20:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-07 11:20:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-07 11:20:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_10 [2019-10-07 11:20:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-07 11:20:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2019-10-07 11:20:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-07 11:20:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-07 11:20:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2019-10-07 11:20:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2019-10-07 11:20:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_17 [2019-10-07 11:20:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_19 [2019-10-07 11:20:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_21 [2019-10-07 11:20:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_23 [2019-10-07 11:20:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 11:20:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-07 11:20:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 11:20:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-07 11:20:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-07 11:20:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 11:20:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-07 11:20:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 11:20:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-07 11:20:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-07 11:20:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-07 11:20:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-07 11:20:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-07 11:20:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-07 11:20:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-07 11:20:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-07 11:20:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-07 11:20:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-10-07 11:20:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_12 [2019-10-07 11:20:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_14 [2019-10-07 11:20:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_18 [2019-10-07 11:20:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-07 11:20:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2019-10-07 11:20:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2019-10-07 11:20:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_9 [2019-10-07 11:20:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_16 [2019-10-07 11:20:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_20 [2019-10-07 11:20:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_22 [2019-10-07 11:20:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-07 11:20:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-07 11:20:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-07 11:20:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-07 11:20:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lp_mutex [2019-10-07 11:20:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lp_mutex [2019-10-07 11:20:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-07 11:20:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-07 11:20:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-07 11:20:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2019-10-07 11:20:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2019-10-07 11:20:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2019-10-07 11:20:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-07 11:20:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-07 11:20:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-10-07 11:20:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-07 11:20:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-10-07 11:20:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2019-10-07 11:20:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-07 11:20:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-07 11:20:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 11:20:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-07 11:20:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2019-10-07 11:20:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure need_resched [2019-10-07 11:20:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-07 11:20:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-07 11:20:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-07 11:20:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_3 [2019-10-07 11:20:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_parport_driver_1 [2019-10-07 11:20:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-07 11:20:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-10-07 11:20:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 11:20:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2019-10-07 11:20:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure __register_chrdev [2019-10-07 11:20:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure __unregister_chrdev [2019-10-07 11:20:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure register_chrdev [2019-10-07 11:20:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_24 [2019-10-07 11:20:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2019-10-07 11:20:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_25 [2019-10-07 11:20:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-07 11:20:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-07 11:20:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-07 11:20:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-07 11:20:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-10-07 11:20:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-07 11:20:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 11:20:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-07 11:20:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure register_console [2019-10-07 11:20:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_console [2019-10-07 11:20:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2019-10-07 11:20:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2019-10-07 11:20:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-10-07 11:20:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-10-07 11:20:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-10-07 11:20:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure compat_get_timeval [2019-10-07 11:20:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure __parport_register_driver [2019-10-07 11:20:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure parport_unregister_driver [2019-10-07 11:20:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure parport_register_device [2019-10-07 11:20:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure parport_unregister_device [2019-10-07 11:20:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure parport_claim [2019-10-07 11:20:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure parport_claim_or_block [2019-10-07 11:20:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure parport_release [2019-10-07 11:20:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure parport_yield_blocking [2019-10-07 11:20:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure parport_negotiate [2019-10-07 11:20:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure parport_write [2019-10-07 11:20:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure parport_read [2019-10-07 11:20:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure parport_set_timeout [2019-10-07 11:20:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure lp_claim_parport_or_block [2019-10-07 11:20:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure lp_release_parport [2019-10-07 11:20:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure lp_preempt [2019-10-07 11:20:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure lp_negotiate [2019-10-07 11:20:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure lp_reset [2019-10-07 11:20:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-10-07 11:20:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-10-07 11:20:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure lp_error [2019-10-07 11:20:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 11:20:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 11:20:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 11:20:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure lp_check_status [2019-10-07 11:20:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure lp_wait_ready [2019-10-07 11:20:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure lp_write [2019-10-07 11:20:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure lp_read [2019-10-07 11:20:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure lp_open [2019-10-07 11:20:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure lp_release [2019-10-07 11:20:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure lp_do_ioctl [2019-10-07 11:20:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure lp_set_timeout [2019-10-07 11:20:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure lp_ioctl [2019-10-07 11:20:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure lp_compat_ioctl [2019-10-07 11:20:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure lp_console_write [2019-10-07 11:20:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure lp_register [2019-10-07 11:20:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure lp_attach [2019-10-07 11:20:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure lp_detach [2019-10-07 11:20:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure lp_init [2019-10-07 11:20:48,268 INFO L130 BoogieDeclarations]: Found specification of procedure lp_init_module [2019-10-07 11:20:48,268 INFO L130 BoogieDeclarations]: Found specification of procedure lp_cleanup_module [2019-10-07 11:20:48,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_open_1 [2019-10-07 11:20:48,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2019-10-07 11:20:48,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2019-10-07 11:20:48,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2019-10-07 11:20:48,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-07 11:20:48,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_close_1 [2019-10-07 11:20:48,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-07 11:20:48,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2019-10-07 11:20:48,269 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 11:20:48,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-07 11:20:48,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2019-10-07 11:20:48,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-07 11:20:48,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-07 11:20:48,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-07 11:20:48,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-07 11:20:48,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-07 11:20:48,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-07 11:20:48,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-07 11:20:48,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-07 11:20:48,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-07 11:20:48,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-07 11:20:48,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-07 11:20:48,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-07 11:20:48,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-07 11:20:48,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-07 11:20:48,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-07 11:20:48,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-07 11:20:48,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2019-10-07 11:20:48,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2019-10-07 11:20:48,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2019-10-07 11:20:48,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2019-10-07 11:20:48,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lp_mutex [2019-10-07 11:20:48,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lp_mutex [2019-10-07 11:20:48,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lp_mutex [2019-10-07 11:20:48,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lp_mutex [2019-10-07 11:20:48,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lp_mutex [2019-10-07 11:20:48,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lp_mutex [2019-10-07 11:20:48,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lp_mutex [2019-10-07 11:20:48,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lp_mutex [2019-10-07 11:20:48,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lp_mutex [2019-10-07 11:20:48,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-07 11:20:48,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-07 11:20:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-07 11:20:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-07 11:20:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2019-10-07 11:20:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-07 11:20:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-07 11:20:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-07 11:20:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_port_mutex_of_lp_struct [2019-10-07 11:20:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_port_mutex_of_lp_struct [2019-10-07 11:20:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_port_mutex_of_lp_struct [2019-10-07 11:20:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_port_mutex_of_lp_struct [2019-10-07 11:20:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_port_mutex_of_lp_struct [2019-10-07 11:20:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_port_mutex_of_lp_struct [2019-10-07 11:20:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_port_mutex_of_lp_struct [2019-10-07 11:20:48,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_port_mutex_of_lp_struct [2019-10-07 11:20:48,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_port_mutex_of_lp_struct [2019-10-07 11:20:48,281 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-07 11:20:48,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-07 11:20:48,281 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 11:20:48,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 11:20:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 11:20:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-07 11:20:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 11:20:49,359 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-07 11:20:54,020 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 11:20:54,020 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-07 11:20:54,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 11:20:54 BoogieIcfgContainer [2019-10-07 11:20:54,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 11:20:54,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 11:20:54,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 11:20:54,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 11:20:54,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 11:20:44" (1/3) ... [2019-10-07 11:20:54,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bec30ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 11:20:54, skipping insertion in model container [2019-10-07 11:20:54,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 11:20:47" (2/3) ... [2019-10-07 11:20:54,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bec30ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 11:20:54, skipping insertion in model container [2019-10-07 11:20:54,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 11:20:54" (3/3) ... [2019-10-07 11:20:54,034 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2019-10-07 11:20:54,046 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 11:20:54,060 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 11:20:54,073 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 11:20:54,117 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 11:20:54,117 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 11:20:54,118 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 11:20:54,118 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 11:20:54,118 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 11:20:54,118 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 11:20:54,118 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 11:20:54,118 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 11:20:54,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2019-10-07 11:20:54,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-07 11:20:54,208 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:20:54,210 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:20:54,213 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:20:54,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:20:54,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1140092400, now seen corresponding path program 1 times [2019-10-07 11:20:54,224 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:20:54,225 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:20:54,225 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:20:54,225 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:20:54,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:20:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:20:55,145 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2019-10-07 11:20:55,145 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:20:55,146 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:20:55,146 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 11:20:55,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 11:20:55,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 11:20:55,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:20:55,167 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2019-10-07 11:20:55,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:20:55,613 INFO L93 Difference]: Finished difference Result 2082 states and 2751 transitions. [2019-10-07 11:20:55,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 11:20:55,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2019-10-07 11:20:55,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:20:55,646 INFO L225 Difference]: With dead ends: 2082 [2019-10-07 11:20:55,647 INFO L226 Difference]: Without dead ends: 1187 [2019-10-07 11:20:55,660 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 11:20:55,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2019-10-07 11:20:55,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1144. [2019-10-07 11:20:55,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1144 states. [2019-10-07 11:20:55,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1479 transitions. [2019-10-07 11:20:55,835 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1479 transitions. Word has length 162 [2019-10-07 11:20:55,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:20:55,836 INFO L462 AbstractCegarLoop]: Abstraction has 1144 states and 1479 transitions. [2019-10-07 11:20:55,836 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 11:20:55,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1479 transitions. [2019-10-07 11:20:55,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-07 11:20:55,845 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:20:55,846 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:20:55,846 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:20:55,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:20:55,846 INFO L82 PathProgramCache]: Analyzing trace with hash 207412342, now seen corresponding path program 1 times [2019-10-07 11:20:55,847 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:20:55,847 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:20:55,847 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:20:55,847 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:20:55,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:20:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:20:56,268 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2019-10-07 11:20:56,269 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:20:56,269 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:20:56,269 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 11:20:56,274 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 11:20:56,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 11:20:56,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 11:20:56,275 INFO L87 Difference]: Start difference. First operand 1144 states and 1479 transitions. Second operand 7 states. [2019-10-07 11:20:56,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:20:56,522 INFO L93 Difference]: Finished difference Result 2272 states and 2936 transitions. [2019-10-07 11:20:56,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 11:20:56,523 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 162 [2019-10-07 11:20:56,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:20:56,540 INFO L225 Difference]: With dead ends: 2272 [2019-10-07 11:20:56,540 INFO L226 Difference]: Without dead ends: 1173 [2019-10-07 11:20:56,545 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-07 11:20:56,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2019-10-07 11:20:56,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1160. [2019-10-07 11:20:56,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1160 states. [2019-10-07 11:20:56,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1497 transitions. [2019-10-07 11:20:56,651 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1497 transitions. Word has length 162 [2019-10-07 11:20:56,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:20:56,654 INFO L462 AbstractCegarLoop]: Abstraction has 1160 states and 1497 transitions. [2019-10-07 11:20:56,654 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 11:20:56,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1497 transitions. [2019-10-07 11:20:56,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-07 11:20:56,658 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:20:56,659 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:20:56,659 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:20:56,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:20:56,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1651586468, now seen corresponding path program 1 times [2019-10-07 11:20:56,660 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:20:56,660 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:20:56,663 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:20:56,664 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:20:56,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:20:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:20:56,994 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2019-10-07 11:20:56,994 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:20:56,995 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:20:56,995 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 11:20:56,996 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 11:20:56,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 11:20:56,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:20:56,998 INFO L87 Difference]: Start difference. First operand 1160 states and 1497 transitions. Second operand 3 states. [2019-10-07 11:20:57,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:20:57,052 INFO L93 Difference]: Finished difference Result 1162 states and 1498 transitions. [2019-10-07 11:20:57,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 11:20:57,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2019-10-07 11:20:57,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:20:57,062 INFO L225 Difference]: With dead ends: 1162 [2019-10-07 11:20:57,062 INFO L226 Difference]: Without dead ends: 1159 [2019-10-07 11:20:57,063 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 11:20:57,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2019-10-07 11:20:57,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1159. [2019-10-07 11:20:57,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1159 states. [2019-10-07 11:20:57,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1495 transitions. [2019-10-07 11:20:57,130 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1495 transitions. Word has length 165 [2019-10-07 11:20:57,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:20:57,133 INFO L462 AbstractCegarLoop]: Abstraction has 1159 states and 1495 transitions. [2019-10-07 11:20:57,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 11:20:57,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1495 transitions. [2019-10-07 11:20:57,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-07 11:20:57,139 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:20:57,140 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:20:57,140 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:20:57,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:20:57,141 INFO L82 PathProgramCache]: Analyzing trace with hash 339871895, now seen corresponding path program 1 times [2019-10-07 11:20:57,141 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:20:57,141 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:20:57,141 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:20:57,141 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:20:57,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:20:57,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:20:57,432 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2019-10-07 11:20:57,432 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:20:57,433 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:20:57,433 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 11:20:57,433 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 11:20:57,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 11:20:57,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:20:57,434 INFO L87 Difference]: Start difference. First operand 1159 states and 1495 transitions. Second operand 3 states. [2019-10-07 11:20:57,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:20:57,487 INFO L93 Difference]: Finished difference Result 1161 states and 1496 transitions. [2019-10-07 11:20:57,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 11:20:57,488 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2019-10-07 11:20:57,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:20:57,497 INFO L225 Difference]: With dead ends: 1161 [2019-10-07 11:20:57,497 INFO L226 Difference]: Without dead ends: 1158 [2019-10-07 11:20:57,498 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 11:20:57,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2019-10-07 11:20:57,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1158. [2019-10-07 11:20:57,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1158 states. [2019-10-07 11:20:57,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1493 transitions. [2019-10-07 11:20:57,569 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1493 transitions. Word has length 166 [2019-10-07 11:20:57,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:20:57,570 INFO L462 AbstractCegarLoop]: Abstraction has 1158 states and 1493 transitions. [2019-10-07 11:20:57,570 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 11:20:57,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1493 transitions. [2019-10-07 11:20:57,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-07 11:20:57,573 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:20:57,573 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:20:57,573 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:20:57,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:20:57,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1945543871, now seen corresponding path program 1 times [2019-10-07 11:20:57,574 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:20:57,574 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:20:57,574 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:20:57,575 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:20:57,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:20:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:20:58,239 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2019-10-07 11:20:58,239 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:20:58,239 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:20:58,239 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 11:20:58,240 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 11:20:58,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 11:20:58,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-07 11:20:58,241 INFO L87 Difference]: Start difference. First operand 1158 states and 1493 transitions. Second operand 7 states. [2019-10-07 11:21:09,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:21:09,707 INFO L93 Difference]: Finished difference Result 3289 states and 4293 transitions. [2019-10-07 11:21:09,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 11:21:09,708 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 167 [2019-10-07 11:21:09,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:21:09,728 INFO L225 Difference]: With dead ends: 3289 [2019-10-07 11:21:09,729 INFO L226 Difference]: Without dead ends: 2176 [2019-10-07 11:21:09,734 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2019-10-07 11:21:09,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2176 states. [2019-10-07 11:21:09,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2176 to 2080. [2019-10-07 11:21:09,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2080 states. [2019-10-07 11:21:09,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 2732 transitions. [2019-10-07 11:21:09,893 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 2732 transitions. Word has length 167 [2019-10-07 11:21:09,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:21:09,893 INFO L462 AbstractCegarLoop]: Abstraction has 2080 states and 2732 transitions. [2019-10-07 11:21:09,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 11:21:09,894 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 2732 transitions. [2019-10-07 11:21:09,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-07 11:21:09,898 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:21:09,899 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:21:09,899 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:21:09,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:21:09,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1932454907, now seen corresponding path program 1 times [2019-10-07 11:21:09,900 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:21:09,900 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:21:09,900 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:21:09,900 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:21:09,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:21:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:21:12,228 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 19 [2019-10-07 11:21:12,604 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 15 [2019-10-07 11:21:12,889 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 28 [2019-10-07 11:21:13,280 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 30 proven. 57 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2019-10-07 11:21:13,281 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:21:13,281 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 11:21:13,281 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 11:21:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:21:13,966 INFO L256 TraceCheckSpWp]: Trace formula consists of 2464 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-07 11:21:13,984 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 11:21:14,103 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2019-10-07 11:21:14,104 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 11:21:14,361 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2019-10-07 11:21:14,362 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 11:21:14,362 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [18] total 19 [2019-10-07 11:21:14,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 11:21:14,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 11:21:14,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2019-10-07 11:21:14,364 INFO L87 Difference]: Start difference. First operand 2080 states and 2732 transitions. Second operand 3 states. [2019-10-07 11:21:14,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:21:14,485 INFO L93 Difference]: Finished difference Result 2228 states and 2877 transitions. [2019-10-07 11:21:14,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 11:21:14,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2019-10-07 11:21:14,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:21:14,501 INFO L225 Difference]: With dead ends: 2228 [2019-10-07 11:21:14,502 INFO L226 Difference]: Without dead ends: 2224 [2019-10-07 11:21:14,504 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 371 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2019-10-07 11:21:14,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states. [2019-10-07 11:21:14,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 2220. [2019-10-07 11:21:14,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2220 states. [2019-10-07 11:21:14,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2220 states to 2220 states and 2868 transitions. [2019-10-07 11:21:14,723 INFO L78 Accepts]: Start accepts. Automaton has 2220 states and 2868 transitions. Word has length 169 [2019-10-07 11:21:14,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:21:14,723 INFO L462 AbstractCegarLoop]: Abstraction has 2220 states and 2868 transitions. [2019-10-07 11:21:14,724 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 11:21:14,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2220 states and 2868 transitions. [2019-10-07 11:21:14,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-07 11:21:14,729 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:21:14,729 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:21:14,944 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 11:21:14,944 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:21:14,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:21:14,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1855133518, now seen corresponding path program 1 times [2019-10-07 11:21:14,946 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:21:14,947 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:21:14,947 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:21:14,947 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:21:14,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:21:15,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:21:15,248 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2019-10-07 11:21:15,248 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:21:15,249 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:21:15,249 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 11:21:15,251 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 11:21:15,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 11:21:15,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:21:15,251 INFO L87 Difference]: Start difference. First operand 2220 states and 2868 transitions. Second operand 3 states. [2019-10-07 11:21:15,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:21:15,367 INFO L93 Difference]: Finished difference Result 2222 states and 2869 transitions. [2019-10-07 11:21:15,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 11:21:15,367 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2019-10-07 11:21:15,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:21:15,383 INFO L225 Difference]: With dead ends: 2222 [2019-10-07 11:21:15,384 INFO L226 Difference]: Without dead ends: 2219 [2019-10-07 11:21:15,386 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 11:21:15,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2219 states. [2019-10-07 11:21:15,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2219 to 2219. [2019-10-07 11:21:15,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2219 states. [2019-10-07 11:21:15,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 2866 transitions. [2019-10-07 11:21:15,552 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 2866 transitions. Word has length 176 [2019-10-07 11:21:15,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:21:15,552 INFO L462 AbstractCegarLoop]: Abstraction has 2219 states and 2866 transitions. [2019-10-07 11:21:15,553 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 11:21:15,553 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 2866 transitions. [2019-10-07 11:21:15,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-07 11:21:15,557 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:21:15,557 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:21:15,558 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:21:15,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:21:15,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1675104758, now seen corresponding path program 1 times [2019-10-07 11:21:15,558 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:21:15,558 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:21:15,559 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:21:15,559 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:21:15,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:21:15,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:21:15,873 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2019-10-07 11:21:15,873 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:21:15,874 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:21:15,874 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 11:21:15,875 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 11:21:15,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 11:21:15,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:21:15,876 INFO L87 Difference]: Start difference. First operand 2219 states and 2866 transitions. Second operand 3 states. [2019-10-07 11:21:16,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:21:16,077 INFO L93 Difference]: Finished difference Result 4023 states and 5215 transitions. [2019-10-07 11:21:16,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 11:21:16,078 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2019-10-07 11:21:16,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:21:16,108 INFO L225 Difference]: With dead ends: 4023 [2019-10-07 11:21:16,108 INFO L226 Difference]: Without dead ends: 3952 [2019-10-07 11:21:16,112 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:21:16,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3952 states. [2019-10-07 11:21:16,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3940. [2019-10-07 11:21:16,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3940 states. [2019-10-07 11:21:16,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3940 states to 3940 states and 5108 transitions. [2019-10-07 11:21:16,429 INFO L78 Accepts]: Start accepts. Automaton has 3940 states and 5108 transitions. Word has length 177 [2019-10-07 11:21:16,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:21:16,433 INFO L462 AbstractCegarLoop]: Abstraction has 3940 states and 5108 transitions. [2019-10-07 11:21:16,433 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 11:21:16,433 INFO L276 IsEmpty]: Start isEmpty. Operand 3940 states and 5108 transitions. [2019-10-07 11:21:16,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-10-07 11:21:16,442 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:21:16,442 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:21:16,442 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:21:16,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:21:16,443 INFO L82 PathProgramCache]: Analyzing trace with hash 523798495, now seen corresponding path program 1 times [2019-10-07 11:21:16,444 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:21:16,445 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:21:16,445 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:21:16,445 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:21:16,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:21:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:21:16,712 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2019-10-07 11:21:16,713 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:21:16,713 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:21:16,714 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 11:21:16,715 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 11:21:16,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 11:21:16,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:21:16,716 INFO L87 Difference]: Start difference. First operand 3940 states and 5108 transitions. Second operand 3 states. [2019-10-07 11:21:17,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:21:17,199 INFO L93 Difference]: Finished difference Result 7820 states and 10114 transitions. [2019-10-07 11:21:17,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 11:21:17,200 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2019-10-07 11:21:17,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:21:17,232 INFO L225 Difference]: With dead ends: 7820 [2019-10-07 11:21:17,232 INFO L226 Difference]: Without dead ends: 3949 [2019-10-07 11:21:17,254 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 11:21:17,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3949 states. [2019-10-07 11:21:17,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3949 to 3912. [2019-10-07 11:21:17,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3912 states. [2019-10-07 11:21:17,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3912 states to 3912 states and 5057 transitions. [2019-10-07 11:21:17,523 INFO L78 Accepts]: Start accepts. Automaton has 3912 states and 5057 transitions. Word has length 246 [2019-10-07 11:21:17,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:21:17,524 INFO L462 AbstractCegarLoop]: Abstraction has 3912 states and 5057 transitions. [2019-10-07 11:21:17,524 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 11:21:17,524 INFO L276 IsEmpty]: Start isEmpty. Operand 3912 states and 5057 transitions. [2019-10-07 11:21:17,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2019-10-07 11:21:17,539 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:21:17,540 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:21:17,540 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:21:17,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:21:17,541 INFO L82 PathProgramCache]: Analyzing trace with hash -185771069, now seen corresponding path program 1 times [2019-10-07 11:21:17,541 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:21:17,541 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:21:17,541 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:21:17,542 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:21:17,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:21:17,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:21:17,861 INFO L134 CoverageAnalysis]: Checked inductivity of 571 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2019-10-07 11:21:17,861 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:21:17,862 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:21:17,862 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 11:21:17,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 11:21:17,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 11:21:17,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:21:17,863 INFO L87 Difference]: Start difference. First operand 3912 states and 5057 transitions. Second operand 3 states. [2019-10-07 11:21:18,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:21:18,130 INFO L93 Difference]: Finished difference Result 6309 states and 8190 transitions. [2019-10-07 11:21:18,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 11:21:18,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 249 [2019-10-07 11:21:18,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:21:18,150 INFO L225 Difference]: With dead ends: 6309 [2019-10-07 11:21:18,151 INFO L226 Difference]: Without dead ends: 2470 [2019-10-07 11:21:18,166 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 11:21:18,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2470 states. [2019-10-07 11:21:18,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2470 to 2426. [2019-10-07 11:21:18,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2426 states. [2019-10-07 11:21:18,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2426 states to 2426 states and 3125 transitions. [2019-10-07 11:21:18,340 INFO L78 Accepts]: Start accepts. Automaton has 2426 states and 3125 transitions. Word has length 249 [2019-10-07 11:21:18,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:21:18,341 INFO L462 AbstractCegarLoop]: Abstraction has 2426 states and 3125 transitions. [2019-10-07 11:21:18,341 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 11:21:18,341 INFO L276 IsEmpty]: Start isEmpty. Operand 2426 states and 3125 transitions. [2019-10-07 11:21:18,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2019-10-07 11:21:18,351 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:21:18,352 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:21:18,353 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:21:18,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:21:18,353 INFO L82 PathProgramCache]: Analyzing trace with hash -328306495, now seen corresponding path program 1 times [2019-10-07 11:21:18,354 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:21:18,354 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:21:18,354 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:21:18,355 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:21:18,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:21:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:21:18,751 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2019-10-07 11:21:18,751 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:21:18,751 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:21:18,751 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 11:21:18,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 11:21:18,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 11:21:18,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 11:21:18,753 INFO L87 Difference]: Start difference. First operand 2426 states and 3125 transitions. Second operand 7 states. [2019-10-07 11:21:19,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:21:19,196 INFO L93 Difference]: Finished difference Result 4663 states and 5978 transitions. [2019-10-07 11:21:19,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 11:21:19,197 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 255 [2019-10-07 11:21:19,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:21:19,218 INFO L225 Difference]: With dead ends: 4663 [2019-10-07 11:21:19,218 INFO L226 Difference]: Without dead ends: 2439 [2019-10-07 11:21:19,232 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 11:21:19,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2019-10-07 11:21:19,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2428. [2019-10-07 11:21:19,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2428 states. [2019-10-07 11:21:19,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 3122 transitions. [2019-10-07 11:21:19,423 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 3122 transitions. Word has length 255 [2019-10-07 11:21:19,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:21:19,423 INFO L462 AbstractCegarLoop]: Abstraction has 2428 states and 3122 transitions. [2019-10-07 11:21:19,424 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 11:21:19,424 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 3122 transitions. [2019-10-07 11:21:19,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2019-10-07 11:21:19,432 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:21:19,432 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:21:19,433 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:21:19,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:21:19,433 INFO L82 PathProgramCache]: Analyzing trace with hash 259772264, now seen corresponding path program 1 times [2019-10-07 11:21:19,433 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:21:19,434 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:21:19,434 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:21:19,434 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:21:19,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:21:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:21:19,756 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2019-10-07 11:21:19,756 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:21:19,757 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:21:19,757 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 11:21:19,757 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 11:21:19,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 11:21:19,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:21:19,758 INFO L87 Difference]: Start difference. First operand 2428 states and 3122 transitions. Second operand 3 states. [2019-10-07 11:21:20,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:21:20,107 INFO L93 Difference]: Finished difference Result 2434 states and 3126 transitions. [2019-10-07 11:21:20,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 11:21:20,108 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 279 [2019-10-07 11:21:20,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:21:20,124 INFO L225 Difference]: With dead ends: 2434 [2019-10-07 11:21:20,124 INFO L226 Difference]: Without dead ends: 2431 [2019-10-07 11:21:20,126 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:21:20,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2431 states. [2019-10-07 11:21:20,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2431 to 2427. [2019-10-07 11:21:20,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2427 states. [2019-10-07 11:21:20,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 2427 states and 3119 transitions. [2019-10-07 11:21:20,270 INFO L78 Accepts]: Start accepts. Automaton has 2427 states and 3119 transitions. Word has length 279 [2019-10-07 11:21:20,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:21:20,271 INFO L462 AbstractCegarLoop]: Abstraction has 2427 states and 3119 transitions. [2019-10-07 11:21:20,271 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 11:21:20,271 INFO L276 IsEmpty]: Start isEmpty. Operand 2427 states and 3119 transitions. [2019-10-07 11:21:20,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2019-10-07 11:21:20,281 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:21:20,282 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:21:20,282 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:21:20,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:21:20,283 INFO L82 PathProgramCache]: Analyzing trace with hash 821659022, now seen corresponding path program 1 times [2019-10-07 11:21:20,283 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:21:20,283 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:21:20,283 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:21:20,284 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:21:20,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:21:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:21:20,667 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2019-10-07 11:21:20,667 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:21:20,668 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:21:20,668 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 11:21:20,668 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 11:21:20,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 11:21:20,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:21:20,669 INFO L87 Difference]: Start difference. First operand 2427 states and 3119 transitions. Second operand 3 states. [2019-10-07 11:21:21,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:21:21,097 INFO L93 Difference]: Finished difference Result 5544 states and 7069 transitions. [2019-10-07 11:21:21,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 11:21:21,098 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 298 [2019-10-07 11:21:21,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:21:21,124 INFO L225 Difference]: With dead ends: 5544 [2019-10-07 11:21:21,124 INFO L226 Difference]: Without dead ends: 3335 [2019-10-07 11:21:21,134 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 11:21:21,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3335 states. [2019-10-07 11:21:21,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3335 to 3256. [2019-10-07 11:21:21,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3256 states. [2019-10-07 11:21:21,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3256 states to 3256 states and 4146 transitions. [2019-10-07 11:21:21,304 INFO L78 Accepts]: Start accepts. Automaton has 3256 states and 4146 transitions. Word has length 298 [2019-10-07 11:21:21,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:21:21,304 INFO L462 AbstractCegarLoop]: Abstraction has 3256 states and 4146 transitions. [2019-10-07 11:21:21,305 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 11:21:21,305 INFO L276 IsEmpty]: Start isEmpty. Operand 3256 states and 4146 transitions. [2019-10-07 11:21:21,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2019-10-07 11:21:21,313 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:21:21,313 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:21:21,314 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:21:21,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:21:21,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1100266214, now seen corresponding path program 1 times [2019-10-07 11:21:21,315 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:21:21,315 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:21:21,315 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:21:21,315 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:21:21,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:21:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:21:21,786 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2019-10-07 11:21:21,787 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:21:21,787 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:21:21,787 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 11:21:21,789 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 11:21:21,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 11:21:21,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-07 11:21:21,790 INFO L87 Difference]: Start difference. First operand 3256 states and 4146 transitions. Second operand 8 states. [2019-10-07 11:21:25,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:21:25,615 INFO L93 Difference]: Finished difference Result 3393 states and 4280 transitions. [2019-10-07 11:21:25,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 11:21:25,616 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 306 [2019-10-07 11:21:25,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:21:25,634 INFO L225 Difference]: With dead ends: 3393 [2019-10-07 11:21:25,634 INFO L226 Difference]: Without dead ends: 3390 [2019-10-07 11:21:25,637 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-07 11:21:25,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3390 states. [2019-10-07 11:21:25,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3390 to 3390. [2019-10-07 11:21:25,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3390 states. [2019-10-07 11:21:25,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3390 states to 3390 states and 4276 transitions. [2019-10-07 11:21:25,821 INFO L78 Accepts]: Start accepts. Automaton has 3390 states and 4276 transitions. Word has length 306 [2019-10-07 11:21:25,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:21:25,823 INFO L462 AbstractCegarLoop]: Abstraction has 3390 states and 4276 transitions. [2019-10-07 11:21:25,823 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 11:21:25,823 INFO L276 IsEmpty]: Start isEmpty. Operand 3390 states and 4276 transitions. [2019-10-07 11:21:25,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2019-10-07 11:21:25,837 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:21:25,837 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:21:25,838 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:21:25,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:21:25,838 INFO L82 PathProgramCache]: Analyzing trace with hash -881902553, now seen corresponding path program 1 times [2019-10-07 11:21:25,839 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:21:25,839 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:21:25,839 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:21:25,839 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:21:25,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:21:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:21:26,624 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2019-10-07 11:21:26,624 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:21:26,625 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 11:21:26,625 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 11:21:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:21:27,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 3433 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 11:21:27,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 11:21:27,666 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 114 proven. 1 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2019-10-07 11:21:27,666 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 11:21:28,097 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 503 trivial. 0 not checked. [2019-10-07 11:21:28,098 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 11:21:28,134 INFO L162 IcfgInterpreter]: Started Sifa with 171 locations of interest [2019-10-07 11:21:28,134 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 11:21:28,142 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 11:21:28,151 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 11:21:28,152 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 11:25:23,204 WARN L191 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 11:25:30,750 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 179 [2019-10-07 11:25:31,515 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 11:25:32,535 WARN L191 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 1277 [2019-10-07 11:25:33,090 WARN L191 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 1276 [2019-10-07 11:25:34,037 WARN L191 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 1275 [2019-10-07 11:25:34,520 WARN L191 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 1275 [2019-10-07 11:25:34,913 WARN L191 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 1275 [2019-10-07 11:25:35,675 WARN L191 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 1417 [2019-10-07 11:25:36,376 WARN L191 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 1417 [2019-10-07 11:25:37,104 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1417 [2019-10-07 11:25:37,776 WARN L191 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 1417 [2019-10-07 11:25:39,017 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 1419 DAG size of output: 1417 [2019-10-07 11:25:39,649 WARN L191 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 1417 [2019-10-07 11:25:40,488 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1417 [2019-10-07 11:25:41,154 WARN L191 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 1417 [2019-10-07 11:25:41,849 WARN L191 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 1417 [2019-10-07 11:25:42,530 WARN L191 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 1417 [2019-10-07 11:25:42,556 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 361 for LOIs [2019-10-07 11:25:42,935 WARN L191 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 1242 [2019-10-07 11:25:43,230 WARN L191 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 1242 [2019-10-07 11:25:44,160 WARN L191 SmtUtils]: Spent 879.00 ms on a formula simplification that was a NOOP. DAG size: 1384 [2019-10-07 11:25:44,162 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1448 for LOIs [2019-10-07 11:25:44,785 WARN L191 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 1448 [2019-10-07 11:25:45,430 WARN L191 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 1448 [2019-10-07 11:25:46,299 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1514 [2019-10-07 11:25:47,121 WARN L191 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 1538 [2019-10-07 11:25:47,917 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1538 [2019-10-07 11:25:48,883 WARN L191 SmtUtils]: Spent 904.00 ms on a formula simplification that was a NOOP. DAG size: 1622 [2019-10-07 11:26:50,463 WARN L191 SmtUtils]: Spent 50.91 s on a formula simplification that was a NOOP. DAG size: 3445 [2019-10-07 11:26:56,522 WARN L191 SmtUtils]: Spent 5.75 s on a formula simplification that was a NOOP. DAG size: 4340 [2019-10-07 11:28:19,664 WARN L191 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 169 [2019-10-07 11:28:25,508 WARN L191 SmtUtils]: Spent 5.83 s on a formula simplification. DAG size of input: 4393 DAG size of output: 4389 [2019-10-07 11:28:25,820 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 11:28:25,821 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 11:28:25,831 INFO L168 Benchmark]: Toolchain (without parser) took 460832.78 ms. Allocated memory was 145.8 MB in the beginning and 2.3 GB in the end (delta: 2.1 GB). Free memory was 94.8 MB in the beginning and 255.7 MB in the end (delta: -160.8 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2019-10-07 11:28:25,832 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 11:28:25,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2685.52 ms. Allocated memory was 145.8 MB in the beginning and 239.6 MB in the end (delta: 93.8 MB). Free memory was 94.6 MB in the beginning and 127.6 MB in the end (delta: -33.0 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. [2019-10-07 11:28:25,836 INFO L168 Benchmark]: Boogie Preprocessor took 381.19 ms. Allocated memory is still 239.6 MB. Free memory was 127.6 MB in the beginning and 108.1 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2019-10-07 11:28:25,837 INFO L168 Benchmark]: RCFGBuilder took 5957.01 ms. Allocated memory was 239.6 MB in the beginning and 323.0 MB in the end (delta: 83.4 MB). Free memory was 108.1 MB in the beginning and 94.9 MB in the end (delta: 13.2 MB). Peak memory consumption was 117.7 MB. Max. memory is 7.1 GB. [2019-10-07 11:28:25,839 INFO L168 Benchmark]: TraceAbstraction took 451803.70 ms. Allocated memory was 323.0 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 94.9 MB in the beginning and 255.7 MB in the end (delta: -160.8 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2019-10-07 11:28:25,847 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2685.52 ms. Allocated memory was 145.8 MB in the beginning and 239.6 MB in the end (delta: 93.8 MB). Free memory was 94.6 MB in the beginning and 127.6 MB in the end (delta: -33.0 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 381.19 ms. Allocated memory is still 239.6 MB. Free memory was 127.6 MB in the beginning and 108.1 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5957.01 ms. Allocated memory was 239.6 MB in the beginning and 323.0 MB in the end (delta: 83.4 MB). Free memory was 108.1 MB in the beginning and 94.9 MB in the end (delta: 13.2 MB). Peak memory consumption was 117.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 451803.70 ms. Allocated memory was 323.0 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 94.9 MB in the beginning and 255.7 MB in the end (delta: -160.8 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...