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 0.1.24-13a467a-m [2019-10-15 02:49:31,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:49:31,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:49:31,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:49:31,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:49:31,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:49:31,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:49:31,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:49:31,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:49:31,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:49:31,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:49:31,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:49:31,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:49:31,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:49:31,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:49:31,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:49:31,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:49:31,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:49:31,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:49:31,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:49:31,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:49:31,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:49:31,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:49:31,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:49:31,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 02:49:31,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 02:49:31,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 02:49:31,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 02:49:31,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 02:49:31,346 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 02:49:31,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 02:49:31,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 02:49:31,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 02:49:31,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 02:49:31,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 02:49:31,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 02:49:31,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 02:49:31,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 02:49:31,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:49:31,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:49:31,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:49:31,358 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 02:49:31,377 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:49:31,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:49:31,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:49:31,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:49:31,380 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:49:31,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:49:31,380 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:49:31,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:49:31,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:49:31,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:49:31,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:49:31,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:49:31,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:49:31,383 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:49:31,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:49:31,383 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:49:31,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:49:31,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:49:31,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:49:31,384 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:49:31,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:49:31,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:49:31,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:49:31,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:49:31,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:49:31,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:49:31,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:49:31,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:49:31,386 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 02:49:31,643 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:49:31,656 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:49:31,659 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:49:31,660 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:49:31,661 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:49:31,662 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2019-10-15 02:49:31,718 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1de8c05ac/e8fcc9a426bc4b4589225c2495aec3ea/FLAGd4590130e [2019-10-15 02:49:32,441 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:49:32,442 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2019-10-15 02:49:32,479 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1de8c05ac/e8fcc9a426bc4b4589225c2495aec3ea/FLAGd4590130e [2019-10-15 02:49:32,989 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1de8c05ac/e8fcc9a426bc4b4589225c2495aec3ea [2019-10-15 02:49:32,999 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:49:33,001 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:49:33,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:49:33,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:49:33,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:49:33,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:49:32" (1/1) ... [2019-10-15 02:49:33,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47be89e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:49:33, skipping insertion in model container [2019-10-15 02:49:33,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:49:32" (1/1) ... [2019-10-15 02:49:33,013 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:49:33,120 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:49:34,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:49:34,477 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:49:34,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:49:35,027 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:49:35,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:49:35 WrapperNode [2019-10-15 02:49:35,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:49:35,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:49:35,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:49:35,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:49:35,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:49:35" (1/1) ... [2019-10-15 02:49:35,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:49:35" (1/1) ... [2019-10-15 02:49:35,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:49:35" (1/1) ... [2019-10-15 02:49:35,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:49:35" (1/1) ... [2019-10-15 02:49:35,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:49:35" (1/1) ... [2019-10-15 02:49:35,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:49:35" (1/1) ... [2019-10-15 02:49:35,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:49:35" (1/1) ... [2019-10-15 02:49:35,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:49:35,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:49:35,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:49:35,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:49:35,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:49:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:49:35,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:49:35,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:49:35,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-10-15 02:49:35,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-10-15 02:49:35,380 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-15 02:49:35,381 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-10-15 02:49:35,381 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-10-15 02:49:35,381 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-15 02:49:35,381 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-15 02:49:35,382 INFO L138 BoogieDeclarations]: Found implementation of procedure current_top_of_stack [2019-10-15 02:49:35,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-15 02:49:35,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-15 02:49:35,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-15 02:49:35,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-15 02:49:35,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-15 02:49:35,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-15 02:49:35,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-15 02:49:35,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-15 02:49:35,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-15 02:49:35,384 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2019-10-15 02:49:35,384 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-15 02:49:35,385 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-15 02:49:35,385 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-15 02:49:35,385 INFO L138 BoogieDeclarations]: Found implementation of procedure need_resched [2019-10-15 02:49:35,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 02:49:35,386 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 02:49:35,386 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-10-15 02:49:35,386 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2019-10-15 02:49:35,386 INFO L138 BoogieDeclarations]: Found implementation of procedure register_chrdev [2019-10-15 02:49:35,386 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2019-10-15 02:49:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-15 02:49:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-15 02:49:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-10-15 02:49:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_yield_blocking [2019-10-15 02:49:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_claim_parport_or_block [2019-10-15 02:49:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_release_parport [2019-10-15 02:49:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_preempt [2019-10-15 02:49:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_negotiate [2019-10-15 02:49:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_reset [2019-10-15 02:49:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_error [2019-10-15 02:49:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_check_status [2019-10-15 02:49:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_wait_ready [2019-10-15 02:49:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_write [2019-10-15 02:49:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_read [2019-10-15 02:49:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_open [2019-10-15 02:49:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_release [2019-10-15 02:49:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_do_ioctl [2019-10-15 02:49:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_set_timeout [2019-10-15 02:49:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_ioctl [2019-10-15 02:49:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_compat_ioctl [2019-10-15 02:49:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_console_write [2019-10-15 02:49:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_register [2019-10-15 02:49:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_attach [2019-10-15 02:49:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_detach [2019-10-15 02:49:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_init [2019-10-15 02:49:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_init_module [2019-10-15 02:49:35,392 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_cleanup_module [2019-10-15 02:49:35,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_3 [2019-10-15 02:49:35,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_parport_driver_1 [2019-10-15 02:49:35,392 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:49:35,392 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-15 02:49:35,393 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-15 02:49:35,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2019-10-15 02:49:35,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2019-10-15 02:49:35,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-15 02:49:35,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2019-10-15 02:49:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_9 [2019-10-15 02:49:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_10 [2019-10-15 02:49:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-15 02:49:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_12 [2019-10-15 02:49:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2019-10-15 02:49:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_14 [2019-10-15 02:49:35,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2019-10-15 02:49:35,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_16 [2019-10-15 02:49:35,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_17 [2019-10-15 02:49:35,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_18 [2019-10-15 02:49:35,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_19 [2019-10-15 02:49:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_20 [2019-10-15 02:49:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_21 [2019-10-15 02:49:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_22 [2019-10-15 02:49:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_23 [2019-10-15 02:49:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_24 [2019-10-15 02:49:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_25 [2019-10-15 02:49:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-15 02:49:35,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2019-10-15 02:49:35,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-15 02:49:35,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-15 02:49:35,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-15 02:49:35,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-15 02:49:35,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-15 02:49:35,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-15 02:49:35,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-15 02:49:35,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-15 02:49:35,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-15 02:49:35,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-15 02:49:35,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-15 02:49:35,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-15 02:49:35,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-15 02:49:35,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-15 02:49:35,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-15 02:49:35,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-15 02:49:35,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-15 02:49:35,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-15 02:49:35,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-15 02:49:35,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-15 02:49:35,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-15 02:49:35,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-15 02:49:35,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2019-10-15 02:49:35,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2019-10-15 02:49:35,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2019-10-15 02:49:35,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2019-10-15 02:49:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lp_mutex [2019-10-15 02:49:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lp_mutex [2019-10-15 02:49:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lp_mutex [2019-10-15 02:49:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lp_mutex [2019-10-15 02:49:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lp_mutex [2019-10-15 02:49:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lp_mutex [2019-10-15 02:49:35,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lp_mutex [2019-10-15 02:49:35,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lp_mutex [2019-10-15 02:49:35,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lp_mutex [2019-10-15 02:49:35,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lp_mutex [2019-10-15 02:49:35,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lp_mutex [2019-10-15 02:49:35,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-15 02:49:35,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-15 02:49:35,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-15 02:49:35,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-15 02:49:35,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-15 02:49:35,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-15 02:49:35,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-15 02:49:35,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2019-10-15 02:49:35,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-15 02:49:35,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-15 02:49:35,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-15 02:49:35,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2019-10-15 02:49:35,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_port_mutex_of_lp_struct [2019-10-15 02:49:35,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_port_mutex_of_lp_struct [2019-10-15 02:49:35,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_port_mutex_of_lp_struct [2019-10-15 02:49:35,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_port_mutex_of_lp_struct [2019-10-15 02:49:35,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_port_mutex_of_lp_struct [2019-10-15 02:49:35,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2019-10-15 02:49:35,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_port_mutex_of_lp_struct [2019-10-15 02:49:35,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_port_mutex_of_lp_struct [2019-10-15 02:49:35,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_port_mutex_of_lp_struct [2019-10-15 02:49:35,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_port_mutex_of_lp_struct [2019-10-15 02:49:35,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 02:49:35,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ___might_sleep [2019-10-15 02:49:35,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2019-10-15 02:49:35,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-15 02:49:35,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-15 02:49:35,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-10-15 02:49:35,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-15 02:49:35,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-10-15 02:49:35,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-15 02:49:35,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __parport_register_driver [2019-10-15 02:49:35,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __register_chrdev [2019-10-15 02:49:35,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __unregister_chrdev [2019-10-15 02:49:35,411 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2019-10-15 02:49:35,411 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-15 02:49:35,411 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-15 02:49:35,411 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2019-10-15 02:49:35,411 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_get_timeval [2019-10-15 02:49:35,411 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-10-15 02:49:35,412 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-10-15 02:49:35,412 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-15 02:49:35,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_close_1 [2019-10-15 02:49:35,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 02:49:35,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_open_1 [2019-10-15 02:49:35,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2019-10-15 02:49:35,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2019-10-15 02:49:35,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2019-10-15 02:49:35,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2019-10-15 02:49:35,413 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-15 02:49:35,413 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-10-15 02:49:35,413 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-15 02:49:35,414 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-15 02:49:35,414 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2019-10-15 02:49:35,414 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_claim [2019-10-15 02:49:35,414 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_claim_or_block [2019-10-15 02:49:35,414 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_negotiate [2019-10-15 02:49:35,414 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_read [2019-10-15 02:49:35,415 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_register_device [2019-10-15 02:49:35,415 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_release [2019-10-15 02:49:35,415 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_set_timeout [2019-10-15 02:49:35,415 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_unregister_device [2019-10-15 02:49:35,415 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_unregister_driver [2019-10-15 02:49:35,415 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_write [2019-10-15 02:49:35,415 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-10-15 02:49:35,416 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-15 02:49:35,416 INFO L138 BoogieDeclarations]: Found implementation of procedure register_console [2019-10-15 02:49:35,416 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-15 02:49:35,416 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2019-10-15 02:49:35,416 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2019-10-15 02:49:35,416 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_console [2019-10-15 02:49:35,417 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2019-10-15 02:49:35,417 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 02:49:35,417 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 02:49:35,417 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-15 02:49:35,417 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-15 02:49:35,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:49:35,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-15 02:49:35,418 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-15 02:49:35,418 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-10-15 02:49:35,418 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-10-15 02:49:35,418 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-15 02:49:35,418 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-15 02:49:35,419 INFO L130 BoogieDeclarations]: Found specification of procedure ___might_sleep [2019-10-15 02:49:35,419 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-10-15 02:49:35,419 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2019-10-15 02:49:35,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-15 02:49:35,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-15 02:49:35,419 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-15 02:49:35,420 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-15 02:49:35,420 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-15 02:49:35,420 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2019-10-15 02:49:35,420 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2019-10-15 02:49:35,420 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-15 02:49:35,420 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-15 02:49:35,421 INFO L130 BoogieDeclarations]: Found specification of procedure current_top_of_stack [2019-10-15 02:49:35,421 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-15 02:49:35,421 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-15 02:49:35,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_10 [2019-10-15 02:49:35,421 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-15 02:49:35,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2019-10-15 02:49:35,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-15 02:49:35,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-15 02:49:35,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2019-10-15 02:49:35,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2019-10-15 02:49:35,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_17 [2019-10-15 02:49:35,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_19 [2019-10-15 02:49:35,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_21 [2019-10-15 02:49:35,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_23 [2019-10-15 02:49:35,423 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 02:49:35,423 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 02:49:35,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 02:49:35,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 02:49:35,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 02:49:35,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 02:49:35,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-15 02:49:35,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 02:49:35,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-15 02:49:35,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-15 02:49:35,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-15 02:49:35,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-15 02:49:35,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-15 02:49:35,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-15 02:49:35,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-15 02:49:35,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-15 02:49:35,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-15 02:49:35,426 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-10-15 02:49:35,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_12 [2019-10-15 02:49:35,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_14 [2019-10-15 02:49:35,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_18 [2019-10-15 02:49:35,426 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-15 02:49:35,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2019-10-15 02:49:35,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2019-10-15 02:49:35,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_9 [2019-10-15 02:49:35,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_16 [2019-10-15 02:49:35,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_20 [2019-10-15 02:49:35,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_22 [2019-10-15 02:49:35,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-15 02:49:35,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-15 02:49:35,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-15 02:49:35,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-15 02:49:35,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lp_mutex [2019-10-15 02:49:35,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lp_mutex [2019-10-15 02:49:35,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-15 02:49:35,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-15 02:49:35,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-15 02:49:35,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2019-10-15 02:49:35,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2019-10-15 02:49:35,429 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2019-10-15 02:49:35,429 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-15 02:49:35,430 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-15 02:49:35,430 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-10-15 02:49:35,430 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-15 02:49:35,430 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-10-15 02:49:35,430 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2019-10-15 02:49:35,430 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-15 02:49:35,431 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-15 02:49:35,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 02:49:35,431 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-15 02:49:35,431 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2019-10-15 02:49:35,431 INFO L130 BoogieDeclarations]: Found specification of procedure need_resched [2019-10-15 02:49:35,431 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 02:49:35,432 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 02:49:35,432 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 02:49:35,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_3 [2019-10-15 02:49:35,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_parport_driver_1 [2019-10-15 02:49:35,432 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-15 02:49:35,433 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-10-15 02:49:35,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 02:49:35,433 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2019-10-15 02:49:35,433 INFO L130 BoogieDeclarations]: Found specification of procedure __register_chrdev [2019-10-15 02:49:35,433 INFO L130 BoogieDeclarations]: Found specification of procedure __unregister_chrdev [2019-10-15 02:49:35,433 INFO L130 BoogieDeclarations]: Found specification of procedure register_chrdev [2019-10-15 02:49:35,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_24 [2019-10-15 02:49:35,434 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2019-10-15 02:49:35,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_25 [2019-10-15 02:49:35,434 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-15 02:49:35,434 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-15 02:49:35,434 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-15 02:49:35,434 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-15 02:49:35,435 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-10-15 02:49:35,435 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-15 02:49:35,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 02:49:35,435 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-15 02:49:35,435 INFO L130 BoogieDeclarations]: Found specification of procedure register_console [2019-10-15 02:49:35,435 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_console [2019-10-15 02:49:35,436 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2019-10-15 02:49:35,436 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2019-10-15 02:49:35,436 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-10-15 02:49:35,436 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-10-15 02:49:35,436 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-10-15 02:49:35,436 INFO L130 BoogieDeclarations]: Found specification of procedure compat_get_timeval [2019-10-15 02:49:35,436 INFO L130 BoogieDeclarations]: Found specification of procedure __parport_register_driver [2019-10-15 02:49:35,437 INFO L130 BoogieDeclarations]: Found specification of procedure parport_unregister_driver [2019-10-15 02:49:35,437 INFO L130 BoogieDeclarations]: Found specification of procedure parport_register_device [2019-10-15 02:49:35,437 INFO L130 BoogieDeclarations]: Found specification of procedure parport_unregister_device [2019-10-15 02:49:35,437 INFO L130 BoogieDeclarations]: Found specification of procedure parport_claim [2019-10-15 02:49:35,437 INFO L130 BoogieDeclarations]: Found specification of procedure parport_claim_or_block [2019-10-15 02:49:35,437 INFO L130 BoogieDeclarations]: Found specification of procedure parport_release [2019-10-15 02:49:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure parport_yield_blocking [2019-10-15 02:49:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure parport_negotiate [2019-10-15 02:49:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure parport_write [2019-10-15 02:49:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure parport_read [2019-10-15 02:49:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure parport_set_timeout [2019-10-15 02:49:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure lp_claim_parport_or_block [2019-10-15 02:49:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure lp_release_parport [2019-10-15 02:49:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure lp_preempt [2019-10-15 02:49:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure lp_negotiate [2019-10-15 02:49:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure lp_reset [2019-10-15 02:49:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-10-15 02:49:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-10-15 02:49:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure lp_error [2019-10-15 02:49:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 02:49:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 02:49:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:49:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure lp_check_status [2019-10-15 02:49:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure lp_wait_ready [2019-10-15 02:49:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure lp_write [2019-10-15 02:49:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure lp_read [2019-10-15 02:49:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure lp_open [2019-10-15 02:49:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure lp_release [2019-10-15 02:49:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure lp_do_ioctl [2019-10-15 02:49:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure lp_set_timeout [2019-10-15 02:49:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure lp_ioctl [2019-10-15 02:49:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure lp_compat_ioctl [2019-10-15 02:49:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure lp_console_write [2019-10-15 02:49:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure lp_register [2019-10-15 02:49:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure lp_attach [2019-10-15 02:49:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure lp_detach [2019-10-15 02:49:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure lp_init [2019-10-15 02:49:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure lp_init_module [2019-10-15 02:49:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure lp_cleanup_module [2019-10-15 02:49:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_open_1 [2019-10-15 02:49:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2019-10-15 02:49:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2019-10-15 02:49:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2019-10-15 02:49:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 02:49:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_close_1 [2019-10-15 02:49:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 02:49:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2019-10-15 02:49:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:49:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-15 02:49:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2019-10-15 02:49:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-15 02:49:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-15 02:49:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-15 02:49:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-15 02:49:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-15 02:49:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-15 02:49:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-15 02:49:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-15 02:49:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-15 02:49:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-15 02:49:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-15 02:49:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-15 02:49:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-15 02:49:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-15 02:49:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-15 02:49:35,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-15 02:49:35,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2019-10-15 02:49:35,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2019-10-15 02:49:35,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2019-10-15 02:49:35,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2019-10-15 02:49:35,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lp_mutex [2019-10-15 02:49:35,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lp_mutex [2019-10-15 02:49:35,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lp_mutex [2019-10-15 02:49:35,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lp_mutex [2019-10-15 02:49:35,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lp_mutex [2019-10-15 02:49:35,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lp_mutex [2019-10-15 02:49:35,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lp_mutex [2019-10-15 02:49:35,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lp_mutex [2019-10-15 02:49:35,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lp_mutex [2019-10-15 02:49:35,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-15 02:49:35,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-15 02:49:35,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-15 02:49:35,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-15 02:49:35,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2019-10-15 02:49:35,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-15 02:49:35,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-15 02:49:35,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-15 02:49:35,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_port_mutex_of_lp_struct [2019-10-15 02:49:35,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_port_mutex_of_lp_struct [2019-10-15 02:49:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_port_mutex_of_lp_struct [2019-10-15 02:49:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_port_mutex_of_lp_struct [2019-10-15 02:49:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_port_mutex_of_lp_struct [2019-10-15 02:49:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_port_mutex_of_lp_struct [2019-10-15 02:49:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_port_mutex_of_lp_struct [2019-10-15 02:49:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_port_mutex_of_lp_struct [2019-10-15 02:49:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_port_mutex_of_lp_struct [2019-10-15 02:49:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 02:49:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-15 02:49:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 02:49:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:49:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 02:49:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 02:49:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:49:36,391 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-15 02:49:40,732 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:49:40,732 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 02:49:40,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:49:40 BoogieIcfgContainer [2019-10-15 02:49:40,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:49:40,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:49:40,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:49:40,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:49:40,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:49:32" (1/3) ... [2019-10-15 02:49:40,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ecb8a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:49:40, skipping insertion in model container [2019-10-15 02:49:40,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:49:35" (2/3) ... [2019-10-15 02:49:40,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ecb8a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:49:40, skipping insertion in model container [2019-10-15 02:49:40,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:49:40" (3/3) ... [2019-10-15 02:49:40,744 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2019-10-15 02:49:40,754 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:49:40,767 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:49:40,778 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:49:40,819 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:49:40,819 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:49:40,819 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:49:40,819 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:49:40,820 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:49:40,820 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:49:40,820 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:49:40,820 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:49:40,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2019-10-15 02:49:40,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-15 02:49:40,887 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:49:40,888 INFO L380 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] [2019-10-15 02:49:40,891 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:49:40,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:49:40,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1140092400, now seen corresponding path program 1 times [2019-10-15 02:49:40,905 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:49:40,906 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367314909] [2019-10-15 02:49:40,906 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:49:40,906 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:49:40,906 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:49:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:49:41,801 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2019-10-15 02:49:41,802 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367314909] [2019-10-15 02:49:41,803 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:49:41,803 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:49:41,803 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982240497] [2019-10-15 02:49:41,808 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:49:41,809 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:49:41,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:49:41,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:49:41,825 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2019-10-15 02:49:42,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:49:42,207 INFO L93 Difference]: Finished difference Result 2082 states and 2751 transitions. [2019-10-15 02:49:42,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:49:42,212 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2019-10-15 02:49:42,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:49:42,266 INFO L225 Difference]: With dead ends: 2082 [2019-10-15 02:49:42,266 INFO L226 Difference]: Without dead ends: 1187 [2019-10-15 02:49:42,281 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:49:42,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2019-10-15 02:49:42,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1144. [2019-10-15 02:49:42,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1144 states. [2019-10-15 02:49:42,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1479 transitions. [2019-10-15 02:49:42,478 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1479 transitions. Word has length 162 [2019-10-15 02:49:42,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:49:42,479 INFO L462 AbstractCegarLoop]: Abstraction has 1144 states and 1479 transitions. [2019-10-15 02:49:42,479 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:49:42,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1479 transitions. [2019-10-15 02:49:42,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-15 02:49:42,485 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:49:42,485 INFO L380 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] [2019-10-15 02:49:42,485 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:49:42,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:49:42,486 INFO L82 PathProgramCache]: Analyzing trace with hash 207412342, now seen corresponding path program 1 times [2019-10-15 02:49:42,486 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:49:42,486 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143451036] [2019-10-15 02:49:42,487 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:49:42,487 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:49:42,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:49:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:49:42,835 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2019-10-15 02:49:42,836 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143451036] [2019-10-15 02:49:42,836 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:49:42,836 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 02:49:42,837 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213826159] [2019-10-15 02:49:42,840 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 02:49:42,840 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:49:42,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 02:49:42,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 02:49:42,840 INFO L87 Difference]: Start difference. First operand 1144 states and 1479 transitions. Second operand 7 states. [2019-10-15 02:49:43,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:49:43,057 INFO L93 Difference]: Finished difference Result 2272 states and 2936 transitions. [2019-10-15 02:49:43,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 02:49:43,057 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 162 [2019-10-15 02:49:43,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:49:43,067 INFO L225 Difference]: With dead ends: 2272 [2019-10-15 02:49:43,067 INFO L226 Difference]: Without dead ends: 1173 [2019-10-15 02:49:43,071 INFO L600 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 [2019-10-15 02:49:43,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2019-10-15 02:49:43,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1160. [2019-10-15 02:49:43,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1160 states. [2019-10-15 02:49:43,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1497 transitions. [2019-10-15 02:49:43,122 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1497 transitions. Word has length 162 [2019-10-15 02:49:43,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:49:43,123 INFO L462 AbstractCegarLoop]: Abstraction has 1160 states and 1497 transitions. [2019-10-15 02:49:43,123 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 02:49:43,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1497 transitions. [2019-10-15 02:49:43,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 02:49:43,126 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:49:43,126 INFO L380 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] [2019-10-15 02:49:43,127 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:49:43,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:49:43,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1651586468, now seen corresponding path program 1 times [2019-10-15 02:49:43,127 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:49:43,128 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056289997] [2019-10-15 02:49:43,128 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:49:43,128 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:49:43,128 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:49:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:49:43,486 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2019-10-15 02:49:43,487 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056289997] [2019-10-15 02:49:43,487 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:49:43,487 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:49:43,488 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112037731] [2019-10-15 02:49:43,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:49:43,490 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:49:43,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:49:43,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:49:43,491 INFO L87 Difference]: Start difference. First operand 1160 states and 1497 transitions. Second operand 3 states. [2019-10-15 02:49:43,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:49:43,545 INFO L93 Difference]: Finished difference Result 1162 states and 1498 transitions. [2019-10-15 02:49:43,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:49:43,546 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2019-10-15 02:49:43,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:49:43,558 INFO L225 Difference]: With dead ends: 1162 [2019-10-15 02:49:43,558 INFO L226 Difference]: Without dead ends: 1159 [2019-10-15 02:49:43,560 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:49:43,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2019-10-15 02:49:43,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1159. [2019-10-15 02:49:43,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1159 states. [2019-10-15 02:49:43,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1495 transitions. [2019-10-15 02:49:43,630 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1495 transitions. Word has length 165 [2019-10-15 02:49:43,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:49:43,632 INFO L462 AbstractCegarLoop]: Abstraction has 1159 states and 1495 transitions. [2019-10-15 02:49:43,632 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:49:43,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1495 transitions. [2019-10-15 02:49:43,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-15 02:49:43,638 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:49:43,638 INFO L380 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] [2019-10-15 02:49:43,639 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:49:43,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:49:43,639 INFO L82 PathProgramCache]: Analyzing trace with hash 339871895, now seen corresponding path program 1 times [2019-10-15 02:49:43,639 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:49:43,640 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763173312] [2019-10-15 02:49:43,640 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:49:43,641 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:49:43,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:49:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:49:43,876 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2019-10-15 02:49:43,877 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763173312] [2019-10-15 02:49:43,877 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:49:43,877 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:49:43,878 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911214730] [2019-10-15 02:49:43,878 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:49:43,878 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:49:43,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:49:43,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:49:43,879 INFO L87 Difference]: Start difference. First operand 1159 states and 1495 transitions. Second operand 3 states. [2019-10-15 02:49:43,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:49:43,931 INFO L93 Difference]: Finished difference Result 1161 states and 1496 transitions. [2019-10-15 02:49:43,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:49:43,932 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2019-10-15 02:49:43,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:49:43,939 INFO L225 Difference]: With dead ends: 1161 [2019-10-15 02:49:43,940 INFO L226 Difference]: Without dead ends: 1158 [2019-10-15 02:49:43,941 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:49:43,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2019-10-15 02:49:43,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1158. [2019-10-15 02:49:43,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1158 states. [2019-10-15 02:49:43,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1493 transitions. [2019-10-15 02:49:43,998 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1493 transitions. Word has length 166 [2019-10-15 02:49:43,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:49:43,999 INFO L462 AbstractCegarLoop]: Abstraction has 1158 states and 1493 transitions. [2019-10-15 02:49:43,999 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:49:43,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1493 transitions. [2019-10-15 02:49:44,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-15 02:49:44,002 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:49:44,002 INFO L380 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] [2019-10-15 02:49:44,002 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:49:44,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:49:44,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1945543871, now seen corresponding path program 1 times [2019-10-15 02:49:44,003 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:49:44,003 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431154030] [2019-10-15 02:49:44,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:49:44,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:49:44,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:49:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:49:44,605 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2019-10-15 02:49:44,605 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431154030] [2019-10-15 02:49:44,606 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:49:44,606 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 02:49:44,606 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225768770] [2019-10-15 02:49:44,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 02:49:44,607 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:49:44,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 02:49:44,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 02:49:44,608 INFO L87 Difference]: Start difference. First operand 1158 states and 1493 transitions. Second operand 7 states. [2019-10-15 02:49:53,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:49:53,839 INFO L93 Difference]: Finished difference Result 3289 states and 4293 transitions. [2019-10-15 02:49:53,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 02:49:53,843 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 167 [2019-10-15 02:49:53,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:49:53,856 INFO L225 Difference]: With dead ends: 3289 [2019-10-15 02:49:53,857 INFO L226 Difference]: Without dead ends: 2176 [2019-10-15 02:49:53,861 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2019-10-15 02:49:53,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2176 states. [2019-10-15 02:49:53,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2176 to 2080. [2019-10-15 02:49:53,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2080 states. [2019-10-15 02:49:53,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 2732 transitions. [2019-10-15 02:49:53,986 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 2732 transitions. Word has length 167 [2019-10-15 02:49:53,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:49:53,986 INFO L462 AbstractCegarLoop]: Abstraction has 2080 states and 2732 transitions. [2019-10-15 02:49:53,986 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 02:49:53,987 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 2732 transitions. [2019-10-15 02:49:53,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-15 02:49:53,990 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:49:53,990 INFO L380 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] [2019-10-15 02:49:53,991 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:49:53,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:49:53,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1741289895, now seen corresponding path program 1 times [2019-10-15 02:49:53,991 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:49:53,992 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034566555] [2019-10-15 02:49:53,992 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:49:53,992 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:49:53,992 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:49:54,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:49:55,365 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2019-10-15 02:49:55,620 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 40 [2019-10-15 02:49:55,907 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 38 [2019-10-15 02:49:56,101 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 35 [2019-10-15 02:49:56,240 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 30 [2019-10-15 02:49:56,838 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 36 proven. 68 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2019-10-15 02:49:56,839 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034566555] [2019-10-15 02:49:56,839 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882620973] [2019-10-15 02:49:56,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:49:57,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:49:57,442 INFO L256 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-15 02:49:57,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:49:57,566 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2019-10-15 02:49:57,566 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:49:57,741 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2019-10-15 02:49:57,742 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 02:49:57,742 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [21] total 22 [2019-10-15 02:49:57,742 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346366019] [2019-10-15 02:49:57,743 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:49:57,743 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:49:57,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:49:57,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2019-10-15 02:49:57,744 INFO L87 Difference]: Start difference. First operand 2080 states and 2732 transitions. Second operand 3 states. [2019-10-15 02:49:57,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:49:57,853 INFO L93 Difference]: Finished difference Result 2228 states and 2877 transitions. [2019-10-15 02:49:57,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:49:57,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2019-10-15 02:49:57,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:49:57,868 INFO L225 Difference]: With dead ends: 2228 [2019-10-15 02:49:57,868 INFO L226 Difference]: Without dead ends: 2224 [2019-10-15 02:49:57,870 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2019-10-15 02:49:57,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states. [2019-10-15 02:49:58,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 2220. [2019-10-15 02:49:58,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2220 states. [2019-10-15 02:49:58,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2220 states to 2220 states and 2868 transitions. [2019-10-15 02:49:58,079 INFO L78 Accepts]: Start accepts. Automaton has 2220 states and 2868 transitions. Word has length 175 [2019-10-15 02:49:58,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:49:58,080 INFO L462 AbstractCegarLoop]: Abstraction has 2220 states and 2868 transitions. [2019-10-15 02:49:58,081 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:49:58,081 INFO L276 IsEmpty]: Start isEmpty. Operand 2220 states and 2868 transitions. [2019-10-15 02:49:58,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-15 02:49:58,087 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:49:58,087 INFO L380 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, 1] [2019-10-15 02:49:58,300 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:49:58,301 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:49:58,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:49:58,301 INFO L82 PathProgramCache]: Analyzing trace with hash 222894612, now seen corresponding path program 1 times [2019-10-15 02:49:58,301 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:49:58,301 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035328240] [2019-10-15 02:49:58,302 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:49:58,302 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:49:58,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:49:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:49:58,568 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2019-10-15 02:49:58,569 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035328240] [2019-10-15 02:49:58,569 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:49:58,570 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:49:58,570 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311199692] [2019-10-15 02:49:58,571 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:49:58,572 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:49:58,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:49:58,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:49:58,572 INFO L87 Difference]: Start difference. First operand 2220 states and 2868 transitions. Second operand 3 states. [2019-10-15 02:49:58,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:49:58,688 INFO L93 Difference]: Finished difference Result 2222 states and 2869 transitions. [2019-10-15 02:49:58,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:49:58,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2019-10-15 02:49:58,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:49:58,705 INFO L225 Difference]: With dead ends: 2222 [2019-10-15 02:49:58,705 INFO L226 Difference]: Without dead ends: 2219 [2019-10-15 02:49:58,708 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:49:58,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2219 states. [2019-10-15 02:49:58,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2219 to 2219. [2019-10-15 02:49:58,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2219 states. [2019-10-15 02:49:58,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 2866 transitions. [2019-10-15 02:49:58,901 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 2866 transitions. Word has length 170 [2019-10-15 02:49:58,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:49:58,901 INFO L462 AbstractCegarLoop]: Abstraction has 2219 states and 2866 transitions. [2019-10-15 02:49:58,901 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:49:58,901 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 2866 transitions. [2019-10-15 02:49:58,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-15 02:49:58,906 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:49:58,906 INFO L380 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] [2019-10-15 02:49:58,907 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:49:58,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:49:58,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1675104758, now seen corresponding path program 1 times [2019-10-15 02:49:58,907 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:49:58,908 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838817682] [2019-10-15 02:49:58,908 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:49:58,908 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:49:58,908 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:49:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:49:59,117 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2019-10-15 02:49:59,117 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838817682] [2019-10-15 02:49:59,117 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:49:59,118 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:49:59,118 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776798405] [2019-10-15 02:49:59,119 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:49:59,119 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:49:59,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:49:59,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:49:59,119 INFO L87 Difference]: Start difference. First operand 2219 states and 2866 transitions. Second operand 3 states. [2019-10-15 02:49:59,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:49:59,304 INFO L93 Difference]: Finished difference Result 4023 states and 5215 transitions. [2019-10-15 02:49:59,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:49:59,304 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2019-10-15 02:49:59,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:49:59,334 INFO L225 Difference]: With dead ends: 4023 [2019-10-15 02:49:59,335 INFO L226 Difference]: Without dead ends: 3952 [2019-10-15 02:49:59,337 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:49:59,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3952 states. [2019-10-15 02:49:59,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3940. [2019-10-15 02:49:59,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3940 states. [2019-10-15 02:49:59,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3940 states to 3940 states and 5108 transitions. [2019-10-15 02:49:59,664 INFO L78 Accepts]: Start accepts. Automaton has 3940 states and 5108 transitions. Word has length 177 [2019-10-15 02:49:59,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:49:59,666 INFO L462 AbstractCegarLoop]: Abstraction has 3940 states and 5108 transitions. [2019-10-15 02:49:59,666 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:49:59,666 INFO L276 IsEmpty]: Start isEmpty. Operand 3940 states and 5108 transitions. [2019-10-15 02:49:59,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-10-15 02:49:59,674 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:49:59,675 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:49:59,675 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:49:59,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:49:59,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1188214950, now seen corresponding path program 1 times [2019-10-15 02:49:59,676 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:49:59,676 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445177264] [2019-10-15 02:49:59,676 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:49:59,676 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:49:59,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:49:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:49:59,970 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2019-10-15 02:49:59,971 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445177264] [2019-10-15 02:49:59,971 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:49:59,971 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:49:59,971 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863342727] [2019-10-15 02:49:59,972 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:49:59,972 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:49:59,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:49:59,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:49:59,973 INFO L87 Difference]: Start difference. First operand 3940 states and 5108 transitions. Second operand 3 states. [2019-10-15 02:50:00,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:50:00,159 INFO L93 Difference]: Finished difference Result 6352 states and 8278 transitions. [2019-10-15 02:50:00,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:50:00,162 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2019-10-15 02:50:00,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:50:00,184 INFO L225 Difference]: With dead ends: 6352 [2019-10-15 02:50:00,185 INFO L226 Difference]: Without dead ends: 2485 [2019-10-15 02:50:00,204 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:00,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2485 states. [2019-10-15 02:50:00,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2485 to 2441. [2019-10-15 02:50:00,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2441 states. [2019-10-15 02:50:00,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 3152 transitions. [2019-10-15 02:50:00,388 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 3152 transitions. Word has length 238 [2019-10-15 02:50:00,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:50:00,388 INFO L462 AbstractCegarLoop]: Abstraction has 2441 states and 3152 transitions. [2019-10-15 02:50:00,389 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:50:00,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 3152 transitions. [2019-10-15 02:50:00,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2019-10-15 02:50:00,397 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:50:00,397 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 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] [2019-10-15 02:50:00,398 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:50:00,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:50:00,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1743165059, now seen corresponding path program 1 times [2019-10-15 02:50:00,399 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:50:00,399 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909199013] [2019-10-15 02:50:00,399 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:00,399 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:00,399 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:50:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:50:00,656 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2019-10-15 02:50:00,656 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909199013] [2019-10-15 02:50:00,657 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:50:00,657 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:50:00,657 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542416053] [2019-10-15 02:50:00,658 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:50:00,658 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:50:00,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:50:00,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:00,659 INFO L87 Difference]: Start difference. First operand 2441 states and 3152 transitions. Second operand 3 states. [2019-10-15 02:50:00,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:50:00,954 INFO L93 Difference]: Finished difference Result 4675 states and 6003 transitions. [2019-10-15 02:50:00,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:50:00,955 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 252 [2019-10-15 02:50:00,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:50:00,971 INFO L225 Difference]: With dead ends: 4675 [2019-10-15 02:50:00,971 INFO L226 Difference]: Without dead ends: 2450 [2019-10-15 02:50:00,990 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:00,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2450 states. [2019-10-15 02:50:01,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2450 to 2426. [2019-10-15 02:50:01,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2426 states. [2019-10-15 02:50:01,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2426 states to 2426 states and 3125 transitions. [2019-10-15 02:50:01,165 INFO L78 Accepts]: Start accepts. Automaton has 2426 states and 3125 transitions. Word has length 252 [2019-10-15 02:50:01,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:50:01,165 INFO L462 AbstractCegarLoop]: Abstraction has 2426 states and 3125 transitions. [2019-10-15 02:50:01,166 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:50:01,166 INFO L276 IsEmpty]: Start isEmpty. Operand 2426 states and 3125 transitions. [2019-10-15 02:50:01,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2019-10-15 02:50:01,176 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:50:01,176 INFO L380 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] [2019-10-15 02:50:01,176 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:50:01,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:50:01,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1874957760, now seen corresponding path program 1 times [2019-10-15 02:50:01,179 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:50:01,179 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134542425] [2019-10-15 02:50:01,179 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:01,179 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:01,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:50:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:50:01,505 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 571 trivial. 0 not checked. [2019-10-15 02:50:01,505 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134542425] [2019-10-15 02:50:01,505 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:50:01,506 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 02:50:01,506 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733558426] [2019-10-15 02:50:01,506 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 02:50:01,507 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:50:01,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 02:50:01,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 02:50:01,507 INFO L87 Difference]: Start difference. First operand 2426 states and 3125 transitions. Second operand 7 states. [2019-10-15 02:50:01,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:50:01,888 INFO L93 Difference]: Finished difference Result 4663 states and 5978 transitions. [2019-10-15 02:50:01,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 02:50:01,889 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 263 [2019-10-15 02:50:01,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:50:01,911 INFO L225 Difference]: With dead ends: 4663 [2019-10-15 02:50:01,912 INFO L226 Difference]: Without dead ends: 2439 [2019-10-15 02:50:01,924 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 02:50:01,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2019-10-15 02:50:02,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2428. [2019-10-15 02:50:02,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2428 states. [2019-10-15 02:50:02,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 3122 transitions. [2019-10-15 02:50:02,208 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 3122 transitions. Word has length 263 [2019-10-15 02:50:02,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:50:02,209 INFO L462 AbstractCegarLoop]: Abstraction has 2428 states and 3122 transitions. [2019-10-15 02:50:02,209 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 02:50:02,209 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 3122 transitions. [2019-10-15 02:50:02,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2019-10-15 02:50:02,226 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:50:02,227 INFO L380 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] [2019-10-15 02:50:02,227 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:50:02,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:50:02,228 INFO L82 PathProgramCache]: Analyzing trace with hash 259772264, now seen corresponding path program 1 times [2019-10-15 02:50:02,228 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:50:02,229 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384710714] [2019-10-15 02:50:02,229 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:02,229 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:02,229 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:50:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:50:02,503 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2019-10-15 02:50:02,504 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384710714] [2019-10-15 02:50:02,504 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:50:02,504 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:50:02,504 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157362884] [2019-10-15 02:50:02,505 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:50:02,505 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:50:02,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:50:02,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:02,506 INFO L87 Difference]: Start difference. First operand 2428 states and 3122 transitions. Second operand 3 states. [2019-10-15 02:50:02,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:50:02,995 INFO L93 Difference]: Finished difference Result 2434 states and 3126 transitions. [2019-10-15 02:50:02,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:50:02,996 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 279 [2019-10-15 02:50:02,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:50:03,012 INFO L225 Difference]: With dead ends: 2434 [2019-10-15 02:50:03,013 INFO L226 Difference]: Without dead ends: 2431 [2019-10-15 02:50:03,014 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:50:03,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2431 states. [2019-10-15 02:50:03,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2431 to 2427. [2019-10-15 02:50:03,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2427 states. [2019-10-15 02:50:03,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 2427 states and 3119 transitions. [2019-10-15 02:50:03,165 INFO L78 Accepts]: Start accepts. Automaton has 2427 states and 3119 transitions. Word has length 279 [2019-10-15 02:50:03,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:50:03,165 INFO L462 AbstractCegarLoop]: Abstraction has 2427 states and 3119 transitions. [2019-10-15 02:50:03,166 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:50:03,166 INFO L276 IsEmpty]: Start isEmpty. Operand 2427 states and 3119 transitions. [2019-10-15 02:50:03,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2019-10-15 02:50:03,178 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:50:03,179 INFO L380 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] [2019-10-15 02:50:03,179 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:50:03,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:50:03,180 INFO L82 PathProgramCache]: Analyzing trace with hash 280329160, now seen corresponding path program 1 times [2019-10-15 02:50:03,180 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:50:03,180 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207362486] [2019-10-15 02:50:03,180 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:03,180 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:50:03,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:50:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:50:03,541 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2019-10-15 02:50:03,541 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207362486] [2019-10-15 02:50:03,542 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:50:03,542 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 02:50:03,542 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029050965] [2019-10-15 02:50:03,543 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 02:50:03,543 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:50:03,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 02:50:03,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-15 02:50:03,545 INFO L87 Difference]: Start difference. First operand 2427 states and 3119 transitions. Second operand 8 states.