java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 20:56:03,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 20:56:03,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 20:56:03,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 20:56:03,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 20:56:03,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 20:56:03,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 20:56:03,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 20:56:03,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 20:56:03,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 20:56:03,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 20:56:03,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 20:56:03,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 20:56:03,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 20:56:03,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 20:56:03,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 20:56:03,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 20:56:03,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 20:56:03,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 20:56:03,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 20:56:03,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 20:56:03,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 20:56:03,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 20:56:03,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 20:56:03,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 20:56:03,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 20:56:03,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 20:56:03,217 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 20:56:03,218 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 20:56:03,219 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 20:56:03,219 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 20:56:03,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 20:56:03,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 20:56:03,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 20:56:03,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 20:56:03,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 20:56:03,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 20:56:03,223 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 20:56:03,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 20:56:03,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 20:56:03,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 20:56:03,226 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 [2019-10-13 20:56:03,246 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 20:56:03,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 20:56:03,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 20:56:03,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 20:56:03,249 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 20:56:03,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 20:56:03,249 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 20:56:03,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 20:56:03,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 20:56:03,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 20:56:03,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 20:56:03,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 20:56:03,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 20:56:03,252 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 20:56:03,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 20:56:03,252 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 20:56:03,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 20:56:03,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 20:56:03,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 20:56:03,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 20:56:03,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 20:56:03,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:56:03,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 20:56:03,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 20:56:03,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 20:56:03,255 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 20:56:03,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 20:56:03,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 20:56:03,256 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 20:56:03,559 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 20:56:03,575 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 20:56:03,579 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 20:56:03,581 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 20:56:03,581 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 20:56:03,582 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2019-10-13 20:56:03,658 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b5f4bad5/e5481805e7b34f8896791b77c59a80ef/FLAGc277f9300 [2019-10-13 20:56:04,432 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 20:56:04,433 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2019-10-13 20:56:04,475 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b5f4bad5/e5481805e7b34f8896791b77c59a80ef/FLAGc277f9300 [2019-10-13 20:56:04,975 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b5f4bad5/e5481805e7b34f8896791b77c59a80ef [2019-10-13 20:56:04,985 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 20:56:04,987 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 20:56:04,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 20:56:04,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 20:56:04,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 20:56:04,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:56:04" (1/1) ... [2019-10-13 20:56:04,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eaad935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:04, skipping insertion in model container [2019-10-13 20:56:04,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:56:04" (1/1) ... [2019-10-13 20:56:05,001 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 20:56:05,107 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 20:56:06,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:56:06,972 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 20:56:07,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:56:07,573 INFO L192 MainTranslator]: Completed translation [2019-10-13 20:56:07,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:07 WrapperNode [2019-10-13 20:56:07,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 20:56:07,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 20:56:07,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 20:56:07,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 20:56:07,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:07" (1/1) ... [2019-10-13 20:56:07,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:07" (1/1) ... [2019-10-13 20:56:07,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:07" (1/1) ... [2019-10-13 20:56:07,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:07" (1/1) ... [2019-10-13 20:56:07,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:07" (1/1) ... [2019-10-13 20:56:07,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:07" (1/1) ... [2019-10-13 20:56:07,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:07" (1/1) ... [2019-10-13 20:56:07,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 20:56:07,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 20:56:07,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 20:56:07,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 20:56:07,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:56:08,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 20:56:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 20:56:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-10-13 20:56:08,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-10-13 20:56:08,015 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-13 20:56:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-10-13 20:56:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-10-13 20:56:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-13 20:56:08,018 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-13 20:56:08,020 INFO L138 BoogieDeclarations]: Found implementation of procedure current_top_of_stack [2019-10-13 20:56:08,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 20:56:08,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 20:56:08,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-13 20:56:08,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-13 20:56:08,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 20:56:08,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 20:56:08,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 20:56:08,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 20:56:08,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 20:56:08,030 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2019-10-13 20:56:08,030 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-13 20:56:08,030 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-13 20:56:08,030 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-13 20:56:08,031 INFO L138 BoogieDeclarations]: Found implementation of procedure need_resched [2019-10-13 20:56:08,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 20:56:08,031 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 20:56:08,031 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-10-13 20:56:08,031 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2019-10-13 20:56:08,032 INFO L138 BoogieDeclarations]: Found implementation of procedure register_chrdev [2019-10-13 20:56:08,032 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2019-10-13 20:56:08,032 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-13 20:56:08,032 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-13 20:56:08,033 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-10-13 20:56:08,033 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_yield_blocking [2019-10-13 20:56:08,033 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_claim_parport_or_block [2019-10-13 20:56:08,033 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_release_parport [2019-10-13 20:56:08,034 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_preempt [2019-10-13 20:56:08,034 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_negotiate [2019-10-13 20:56:08,034 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_reset [2019-10-13 20:56:08,034 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_error [2019-10-13 20:56:08,034 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_check_status [2019-10-13 20:56:08,034 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_wait_ready [2019-10-13 20:56:08,034 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_write [2019-10-13 20:56:08,035 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_read [2019-10-13 20:56:08,035 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_open [2019-10-13 20:56:08,035 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_release [2019-10-13 20:56:08,035 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_do_ioctl [2019-10-13 20:56:08,036 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_set_timeout [2019-10-13 20:56:08,036 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_ioctl [2019-10-13 20:56:08,036 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_compat_ioctl [2019-10-13 20:56:08,036 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_console_write [2019-10-13 20:56:08,037 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_register [2019-10-13 20:56:08,037 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_attach [2019-10-13 20:56:08,037 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_detach [2019-10-13 20:56:08,037 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_init [2019-10-13 20:56:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_init_module [2019-10-13 20:56:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_cleanup_module [2019-10-13 20:56:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_3 [2019-10-13 20:56:08,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_parport_driver_1 [2019-10-13 20:56:08,039 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 20:56:08,040 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-13 20:56:08,040 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-13 20:56:08,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2019-10-13 20:56:08,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2019-10-13 20:56:08,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-13 20:56:08,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2019-10-13 20:56:08,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_9 [2019-10-13 20:56:08,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_10 [2019-10-13 20:56:08,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-13 20:56:08,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_12 [2019-10-13 20:56:08,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2019-10-13 20:56:08,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_14 [2019-10-13 20:56:08,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2019-10-13 20:56:08,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_16 [2019-10-13 20:56:08,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_17 [2019-10-13 20:56:08,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_18 [2019-10-13 20:56:08,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_19 [2019-10-13 20:56:08,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_20 [2019-10-13 20:56:08,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_21 [2019-10-13 20:56:08,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_22 [2019-10-13 20:56:08,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_23 [2019-10-13 20:56:08,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_24 [2019-10-13 20:56:08,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_25 [2019-10-13 20:56:08,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 20:56:08,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2019-10-13 20:56:08,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 20:56:08,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 20:56:08,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 20:56:08,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 20:56:08,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-13 20:56:08,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-13 20:56:08,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-13 20:56:08,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-13 20:56:08,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-13 20:56:08,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-13 20:56:08,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-13 20:56:08,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-13 20:56:08,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-13 20:56:08,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-13 20:56:08,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-13 20:56:08,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-13 20:56:08,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-13 20:56:08,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-13 20:56:08,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-13 20:56:08,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-13 20:56:08,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-13 20:56:08,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-13 20:56:08,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2019-10-13 20:56:08,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2019-10-13 20:56:08,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2019-10-13 20:56:08,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2019-10-13 20:56:08,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lp_mutex [2019-10-13 20:56:08,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lp_mutex [2019-10-13 20:56:08,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lp_mutex [2019-10-13 20:56:08,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lp_mutex [2019-10-13 20:56:08,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lp_mutex [2019-10-13 20:56:08,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lp_mutex [2019-10-13 20:56:08,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lp_mutex [2019-10-13 20:56:08,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lp_mutex [2019-10-13 20:56:08,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lp_mutex [2019-10-13 20:56:08,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lp_mutex [2019-10-13 20:56:08,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lp_mutex [2019-10-13 20:56:08,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-13 20:56:08,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-13 20:56:08,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-13 20:56:08,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-13 20:56:08,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-13 20:56:08,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-13 20:56:08,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-13 20:56:08,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2019-10-13 20:56:08,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-13 20:56:08,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-13 20:56:08,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-13 20:56:08,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2019-10-13 20:56:08,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_port_mutex_of_lp_struct [2019-10-13 20:56:08,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_port_mutex_of_lp_struct [2019-10-13 20:56:08,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_port_mutex_of_lp_struct [2019-10-13 20:56:08,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_port_mutex_of_lp_struct [2019-10-13 20:56:08,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_port_mutex_of_lp_struct [2019-10-13 20:56:08,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2019-10-13 20:56:08,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_port_mutex_of_lp_struct [2019-10-13 20:56:08,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_port_mutex_of_lp_struct [2019-10-13 20:56:08,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_port_mutex_of_lp_struct [2019-10-13 20:56:08,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_port_mutex_of_lp_struct [2019-10-13 20:56:08,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 20:56:08,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ___might_sleep [2019-10-13 20:56:08,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2019-10-13 20:56:08,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-13 20:56:08,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-13 20:56:08,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-10-13 20:56:08,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-13 20:56:08,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-10-13 20:56:08,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-13 20:56:08,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __parport_register_driver [2019-10-13 20:56:08,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __register_chrdev [2019-10-13 20:56:08,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __unregister_chrdev [2019-10-13 20:56:08,081 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2019-10-13 20:56:08,082 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-13 20:56:08,082 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-13 20:56:08,082 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2019-10-13 20:56:08,083 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_get_timeval [2019-10-13 20:56:08,083 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-10-13 20:56:08,083 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-10-13 20:56:08,083 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-13 20:56:08,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_close_1 [2019-10-13 20:56:08,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 20:56:08,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_open_1 [2019-10-13 20:56:08,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2019-10-13 20:56:08,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2019-10-13 20:56:08,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2019-10-13 20:56:08,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2019-10-13 20:56:08,085 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-13 20:56:08,085 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-10-13 20:56:08,086 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-13 20:56:08,086 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 20:56:08,086 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2019-10-13 20:56:08,086 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_claim [2019-10-13 20:56:08,087 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_claim_or_block [2019-10-13 20:56:08,087 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_negotiate [2019-10-13 20:56:08,087 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_read [2019-10-13 20:56:08,087 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_register_device [2019-10-13 20:56:08,088 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_release [2019-10-13 20:56:08,088 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_set_timeout [2019-10-13 20:56:08,088 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_unregister_device [2019-10-13 20:56:08,088 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_unregister_driver [2019-10-13 20:56:08,089 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_write [2019-10-13 20:56:08,089 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-10-13 20:56:08,089 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 20:56:08,089 INFO L138 BoogieDeclarations]: Found implementation of procedure register_console [2019-10-13 20:56:08,089 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-13 20:56:08,090 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2019-10-13 20:56:08,090 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2019-10-13 20:56:08,090 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_console [2019-10-13 20:56:08,090 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2019-10-13 20:56:08,091 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 20:56:08,091 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 20:56:08,091 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 20:56:08,092 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 20:56:08,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 20:56:08,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 20:56:08,092 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-13 20:56:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-10-13 20:56:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-10-13 20:56:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-13 20:56:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 20:56:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure ___might_sleep [2019-10-13 20:56:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-10-13 20:56:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2019-10-13 20:56:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 20:56:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 20:56:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-13 20:56:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-13 20:56:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 20:56:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2019-10-13 20:56:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2019-10-13 20:56:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-13 20:56:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-13 20:56:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure current_top_of_stack [2019-10-13 20:56:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-13 20:56:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-13 20:56:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_10 [2019-10-13 20:56:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 20:56:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2019-10-13 20:56:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-13 20:56:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-13 20:56:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2019-10-13 20:56:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2019-10-13 20:56:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_17 [2019-10-13 20:56:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_19 [2019-10-13 20:56:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_21 [2019-10-13 20:56:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_23 [2019-10-13 20:56:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 20:56:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 20:56:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 20:56:08,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 20:56:08,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 20:56:08,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 20:56:08,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 20:56:08,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 20:56:08,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 20:56:08,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 20:56:08,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-13 20:56:08,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-13 20:56:08,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 20:56:08,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 20:56:08,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 20:56:08,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 20:56:08,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 20:56:08,104 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-10-13 20:56:08,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_12 [2019-10-13 20:56:08,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_14 [2019-10-13 20:56:08,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_18 [2019-10-13 20:56:08,105 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-13 20:56:08,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2019-10-13 20:56:08,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2019-10-13 20:56:08,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_9 [2019-10-13 20:56:08,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_16 [2019-10-13 20:56:08,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_20 [2019-10-13 20:56:08,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_22 [2019-10-13 20:56:08,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-13 20:56:08,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-13 20:56:08,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-13 20:56:08,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-13 20:56:08,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lp_mutex [2019-10-13 20:56:08,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lp_mutex [2019-10-13 20:56:08,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-13 20:56:08,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-13 20:56:08,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-13 20:56:08,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2019-10-13 20:56:08,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2019-10-13 20:56:08,109 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2019-10-13 20:56:08,109 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-13 20:56:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-13 20:56:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-10-13 20:56:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-13 20:56:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-10-13 20:56:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2019-10-13 20:56:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-13 20:56:08,111 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-13 20:56:08,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 20:56:08,111 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-13 20:56:08,111 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2019-10-13 20:56:08,111 INFO L130 BoogieDeclarations]: Found specification of procedure need_resched [2019-10-13 20:56:08,111 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 20:56:08,112 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 20:56:08,112 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 20:56:08,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_3 [2019-10-13 20:56:08,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_parport_driver_1 [2019-10-13 20:56:08,112 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-13 20:56:08,112 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-10-13 20:56:08,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 20:56:08,113 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2019-10-13 20:56:08,113 INFO L130 BoogieDeclarations]: Found specification of procedure __register_chrdev [2019-10-13 20:56:08,113 INFO L130 BoogieDeclarations]: Found specification of procedure __unregister_chrdev [2019-10-13 20:56:08,113 INFO L130 BoogieDeclarations]: Found specification of procedure register_chrdev [2019-10-13 20:56:08,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_24 [2019-10-13 20:56:08,113 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2019-10-13 20:56:08,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_25 [2019-10-13 20:56:08,114 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-13 20:56:08,114 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-13 20:56:08,114 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-13 20:56:08,115 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-13 20:56:08,115 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-10-13 20:56:08,115 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-13 20:56:08,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 20:56:08,116 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-13 20:56:08,116 INFO L130 BoogieDeclarations]: Found specification of procedure register_console [2019-10-13 20:56:08,116 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_console [2019-10-13 20:56:08,116 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2019-10-13 20:56:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2019-10-13 20:56:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-10-13 20:56:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-10-13 20:56:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-10-13 20:56:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure compat_get_timeval [2019-10-13 20:56:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure __parport_register_driver [2019-10-13 20:56:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure parport_unregister_driver [2019-10-13 20:56:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure parport_register_device [2019-10-13 20:56:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure parport_unregister_device [2019-10-13 20:56:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure parport_claim [2019-10-13 20:56:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure parport_claim_or_block [2019-10-13 20:56:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure parport_release [2019-10-13 20:56:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure parport_yield_blocking [2019-10-13 20:56:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure parport_negotiate [2019-10-13 20:56:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure parport_write [2019-10-13 20:56:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure parport_read [2019-10-13 20:56:08,121 INFO L130 BoogieDeclarations]: Found specification of procedure parport_set_timeout [2019-10-13 20:56:08,121 INFO L130 BoogieDeclarations]: Found specification of procedure lp_claim_parport_or_block [2019-10-13 20:56:08,121 INFO L130 BoogieDeclarations]: Found specification of procedure lp_release_parport [2019-10-13 20:56:08,121 INFO L130 BoogieDeclarations]: Found specification of procedure lp_preempt [2019-10-13 20:56:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure lp_negotiate [2019-10-13 20:56:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure lp_reset [2019-10-13 20:56:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-10-13 20:56:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-10-13 20:56:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure lp_error [2019-10-13 20:56:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 20:56:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 20:56:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 20:56:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure lp_check_status [2019-10-13 20:56:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure lp_wait_ready [2019-10-13 20:56:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure lp_write [2019-10-13 20:56:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure lp_read [2019-10-13 20:56:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure lp_open [2019-10-13 20:56:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure lp_release [2019-10-13 20:56:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure lp_do_ioctl [2019-10-13 20:56:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure lp_set_timeout [2019-10-13 20:56:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure lp_ioctl [2019-10-13 20:56:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure lp_compat_ioctl [2019-10-13 20:56:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure lp_console_write [2019-10-13 20:56:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure lp_register [2019-10-13 20:56:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure lp_attach [2019-10-13 20:56:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure lp_detach [2019-10-13 20:56:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure lp_init [2019-10-13 20:56:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure lp_init_module [2019-10-13 20:56:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure lp_cleanup_module [2019-10-13 20:56:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_open_1 [2019-10-13 20:56:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2019-10-13 20:56:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2019-10-13 20:56:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2019-10-13 20:56:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 20:56:08,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_close_1 [2019-10-13 20:56:08,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 20:56:08,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2019-10-13 20:56:08,129 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 20:56:08,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 20:56:08,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2019-10-13 20:56:08,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 20:56:08,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 20:56:08,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-13 20:56:08,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-13 20:56:08,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-13 20:56:08,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-13 20:56:08,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-13 20:56:08,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-13 20:56:08,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-13 20:56:08,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-13 20:56:08,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-13 20:56:08,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-13 20:56:08,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-13 20:56:08,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-13 20:56:08,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-13 20:56:08,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-13 20:56:08,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2019-10-13 20:56:08,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2019-10-13 20:56:08,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2019-10-13 20:56:08,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2019-10-13 20:56:08,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lp_mutex [2019-10-13 20:56:08,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lp_mutex [2019-10-13 20:56:08,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lp_mutex [2019-10-13 20:56:08,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lp_mutex [2019-10-13 20:56:08,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lp_mutex [2019-10-13 20:56:08,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lp_mutex [2019-10-13 20:56:08,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lp_mutex [2019-10-13 20:56:08,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lp_mutex [2019-10-13 20:56:08,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lp_mutex [2019-10-13 20:56:08,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-13 20:56:08,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-13 20:56:08,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-13 20:56:08,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-13 20:56:08,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2019-10-13 20:56:08,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-13 20:56:08,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-13 20:56:08,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-13 20:56:08,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_port_mutex_of_lp_struct [2019-10-13 20:56:08,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_port_mutex_of_lp_struct [2019-10-13 20:56:08,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_port_mutex_of_lp_struct [2019-10-13 20:56:08,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_port_mutex_of_lp_struct [2019-10-13 20:56:08,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_port_mutex_of_lp_struct [2019-10-13 20:56:08,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_port_mutex_of_lp_struct [2019-10-13 20:56:08,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_port_mutex_of_lp_struct [2019-10-13 20:56:08,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_port_mutex_of_lp_struct [2019-10-13 20:56:08,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_port_mutex_of_lp_struct [2019-10-13 20:56:08,138 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 20:56:08,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-13 20:56:08,138 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 20:56:08,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 20:56:08,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 20:56:08,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 20:56:08,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 20:56:09,425 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 20:56:12,390 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 20:56:12,390 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 20:56:12,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:56:12 BoogieIcfgContainer [2019-10-13 20:56:12,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 20:56:12,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 20:56:12,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 20:56:12,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 20:56:12,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:56:04" (1/3) ... [2019-10-13 20:56:12,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d208110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:56:12, skipping insertion in model container [2019-10-13 20:56:12,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:56:07" (2/3) ... [2019-10-13 20:56:12,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d208110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:56:12, skipping insertion in model container [2019-10-13 20:56:12,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:56:12" (3/3) ... [2019-10-13 20:56:12,401 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2019-10-13 20:56:12,410 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 20:56:12,422 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 20:56:12,433 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 20:56:12,472 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 20:56:12,472 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 20:56:12,473 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 20:56:12,473 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 20:56:12,473 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 20:56:12,473 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 20:56:12,473 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 20:56:12,473 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 20:56:12,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states. [2019-10-13 20:56:12,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-13 20:56:12,574 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:12,578 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:12,581 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:12,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:12,588 INFO L82 PathProgramCache]: Analyzing trace with hash 340210622, now seen corresponding path program 1 times [2019-10-13 20:56:12,598 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:12,598 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226038851] [2019-10-13 20:56:12,599 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:12,599 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:12,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:13,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:13,618 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2019-10-13 20:56:13,619 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226038851] [2019-10-13 20:56:13,620 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:13,620 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 20:56:13,621 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129256623] [2019-10-13 20:56:13,626 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 20:56:13,628 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:13,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 20:56:13,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:56:13,647 INFO L87 Difference]: Start difference. First operand 1355 states. Second operand 7 states. [2019-10-13 20:56:14,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:14,023 INFO L93 Difference]: Finished difference Result 2162 states and 2867 transitions. [2019-10-13 20:56:14,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:56:14,025 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 193 [2019-10-13 20:56:14,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:14,064 INFO L225 Difference]: With dead ends: 2162 [2019-10-13 20:56:14,065 INFO L226 Difference]: Without dead ends: 1098 [2019-10-13 20:56:14,078 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-13 20:56:14,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2019-10-13 20:56:14,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1085. [2019-10-13 20:56:14,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1085 states. [2019-10-13 20:56:14,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 1408 transitions. [2019-10-13 20:56:14,262 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 1408 transitions. Word has length 193 [2019-10-13 20:56:14,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:14,276 INFO L462 AbstractCegarLoop]: Abstraction has 1085 states and 1408 transitions. [2019-10-13 20:56:14,276 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 20:56:14,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1408 transitions. [2019-10-13 20:56:14,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-13 20:56:14,285 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:14,286 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:14,286 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:14,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:14,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1240012214, now seen corresponding path program 1 times [2019-10-13 20:56:14,287 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:14,287 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570416919] [2019-10-13 20:56:14,287 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:14,287 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:14,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:14,608 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2019-10-13 20:56:14,609 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570416919] [2019-10-13 20:56:14,609 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:14,609 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:14,609 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460365287] [2019-10-13 20:56:14,611 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:14,611 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:14,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:14,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:14,612 INFO L87 Difference]: Start difference. First operand 1085 states and 1408 transitions. Second operand 3 states. [2019-10-13 20:56:14,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:14,797 INFO L93 Difference]: Finished difference Result 2462 states and 3178 transitions. [2019-10-13 20:56:14,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:14,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2019-10-13 20:56:14,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:14,810 INFO L225 Difference]: With dead ends: 2462 [2019-10-13 20:56:14,810 INFO L226 Difference]: Without dead ends: 1425 [2019-10-13 20:56:14,814 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 [2019-10-13 20:56:14,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1425 states. [2019-10-13 20:56:14,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1425 to 1376. [2019-10-13 20:56:14,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2019-10-13 20:56:14,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1776 transitions. [2019-10-13 20:56:14,886 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1776 transitions. Word has length 194 [2019-10-13 20:56:14,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:14,887 INFO L462 AbstractCegarLoop]: Abstraction has 1376 states and 1776 transitions. [2019-10-13 20:56:14,887 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:14,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1776 transitions. [2019-10-13 20:56:14,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-13 20:56:14,892 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:14,893 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:14,893 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:14,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:14,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1614037506, now seen corresponding path program 1 times [2019-10-13 20:56:14,894 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:14,894 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038644740] [2019-10-13 20:56:14,894 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:14,894 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:14,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:15,254 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2019-10-13 20:56:15,254 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038644740] [2019-10-13 20:56:15,254 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:15,254 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:15,255 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518295259] [2019-10-13 20:56:15,256 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:15,257 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:15,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:15,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:15,258 INFO L87 Difference]: Start difference. First operand 1376 states and 1776 transitions. Second operand 3 states. [2019-10-13 20:56:15,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:15,324 INFO L93 Difference]: Finished difference Result 2706 states and 3500 transitions. [2019-10-13 20:56:15,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:15,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2019-10-13 20:56:15,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:15,333 INFO L225 Difference]: With dead ends: 2706 [2019-10-13 20:56:15,333 INFO L226 Difference]: Without dead ends: 1378 [2019-10-13 20:56:15,339 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 [2019-10-13 20:56:15,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1378 states. [2019-10-13 20:56:15,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1378 to 1378. [2019-10-13 20:56:15,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1378 states. [2019-10-13 20:56:15,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 1778 transitions. [2019-10-13 20:56:15,392 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 1778 transitions. Word has length 199 [2019-10-13 20:56:15,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:15,393 INFO L462 AbstractCegarLoop]: Abstraction has 1378 states and 1778 transitions. [2019-10-13 20:56:15,393 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:15,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 1778 transitions. [2019-10-13 20:56:15,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-13 20:56:15,397 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:15,397 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:15,397 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:15,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:15,398 INFO L82 PathProgramCache]: Analyzing trace with hash 74906236, now seen corresponding path program 1 times [2019-10-13 20:56:15,398 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:15,398 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882653250] [2019-10-13 20:56:15,398 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:15,398 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:15,399 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:15,629 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2019-10-13 20:56:15,629 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882653250] [2019-10-13 20:56:15,630 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:15,630 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:15,630 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824845220] [2019-10-13 20:56:15,631 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:15,631 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:15,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:15,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:15,631 INFO L87 Difference]: Start difference. First operand 1378 states and 1778 transitions. Second operand 3 states. [2019-10-13 20:56:15,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:15,679 INFO L93 Difference]: Finished difference Result 1380 states and 1779 transitions. [2019-10-13 20:56:15,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:15,680 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2019-10-13 20:56:15,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:15,687 INFO L225 Difference]: With dead ends: 1380 [2019-10-13 20:56:15,687 INFO L226 Difference]: Without dead ends: 1377 [2019-10-13 20:56:15,688 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 [2019-10-13 20:56:15,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2019-10-13 20:56:15,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1377. [2019-10-13 20:56:15,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1377 states. [2019-10-13 20:56:15,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 1776 transitions. [2019-10-13 20:56:15,761 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 1776 transitions. Word has length 199 [2019-10-13 20:56:15,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:15,762 INFO L462 AbstractCegarLoop]: Abstraction has 1377 states and 1776 transitions. [2019-10-13 20:56:15,763 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:15,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 1776 transitions. [2019-10-13 20:56:15,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-13 20:56:15,766 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:15,767 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:15,767 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:15,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:15,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1973429129, now seen corresponding path program 1 times [2019-10-13 20:56:15,767 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:15,768 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259841540] [2019-10-13 20:56:15,768 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:15,768 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:15,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:16,121 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2019-10-13 20:56:16,121 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259841540] [2019-10-13 20:56:16,121 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:16,122 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:16,123 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375637361] [2019-10-13 20:56:16,123 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:16,123 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:16,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:16,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:16,124 INFO L87 Difference]: Start difference. First operand 1377 states and 1776 transitions. Second operand 3 states. [2019-10-13 20:56:16,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:16,184 INFO L93 Difference]: Finished difference Result 1379 states and 1777 transitions. [2019-10-13 20:56:16,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:16,184 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2019-10-13 20:56:16,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:16,194 INFO L225 Difference]: With dead ends: 1379 [2019-10-13 20:56:16,194 INFO L226 Difference]: Without dead ends: 1376 [2019-10-13 20:56:16,196 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 [2019-10-13 20:56:16,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2019-10-13 20:56:16,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1376. [2019-10-13 20:56:16,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2019-10-13 20:56:16,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1774 transitions. [2019-10-13 20:56:16,266 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1774 transitions. Word has length 200 [2019-10-13 20:56:16,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:16,267 INFO L462 AbstractCegarLoop]: Abstraction has 1376 states and 1774 transitions. [2019-10-13 20:56:16,267 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:16,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1774 transitions. [2019-10-13 20:56:16,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-13 20:56:16,270 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:16,271 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:16,271 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:16,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:16,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1047311137, now seen corresponding path program 1 times [2019-10-13 20:56:16,272 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:16,272 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380479577] [2019-10-13 20:56:16,272 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:16,272 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:16,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:16,530 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2019-10-13 20:56:16,535 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380479577] [2019-10-13 20:56:16,535 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:16,535 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:16,536 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841614246] [2019-10-13 20:56:16,537 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:16,537 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:16,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:16,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:16,537 INFO L87 Difference]: Start difference. First operand 1376 states and 1774 transitions. Second operand 3 states. [2019-10-13 20:56:16,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:16,614 INFO L93 Difference]: Finished difference Result 1506 states and 1904 transitions. [2019-10-13 20:56:16,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:16,614 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2019-10-13 20:56:16,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:16,632 INFO L225 Difference]: With dead ends: 1506 [2019-10-13 20:56:16,632 INFO L226 Difference]: Without dead ends: 1502 [2019-10-13 20:56:16,633 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 [2019-10-13 20:56:16,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2019-10-13 20:56:16,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1498. [2019-10-13 20:56:16,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1498 states. [2019-10-13 20:56:16,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 1896 transitions. [2019-10-13 20:56:16,710 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 1896 transitions. Word has length 201 [2019-10-13 20:56:16,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:16,711 INFO L462 AbstractCegarLoop]: Abstraction has 1498 states and 1896 transitions. [2019-10-13 20:56:16,711 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:16,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 1896 transitions. [2019-10-13 20:56:16,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-13 20:56:16,715 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:16,715 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:16,716 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:16,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:16,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1892547706, now seen corresponding path program 1 times [2019-10-13 20:56:16,716 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:16,716 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373633353] [2019-10-13 20:56:16,717 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:16,717 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:16,717 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:16,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:17,029 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2019-10-13 20:56:17,029 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373633353] [2019-10-13 20:56:17,029 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:17,029 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:17,030 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865876950] [2019-10-13 20:56:17,030 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:17,030 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:17,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:17,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:17,031 INFO L87 Difference]: Start difference. First operand 1498 states and 1896 transitions. Second operand 3 states. [2019-10-13 20:56:17,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:17,114 INFO L93 Difference]: Finished difference Result 1500 states and 1897 transitions. [2019-10-13 20:56:17,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:17,115 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2019-10-13 20:56:17,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:17,132 INFO L225 Difference]: With dead ends: 1500 [2019-10-13 20:56:17,133 INFO L226 Difference]: Without dead ends: 1497 [2019-10-13 20:56:17,134 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 [2019-10-13 20:56:17,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2019-10-13 20:56:17,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1497. [2019-10-13 20:56:17,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1497 states. [2019-10-13 20:56:17,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 1894 transitions. [2019-10-13 20:56:17,253 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 1894 transitions. Word has length 202 [2019-10-13 20:56:17,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:17,253 INFO L462 AbstractCegarLoop]: Abstraction has 1497 states and 1894 transitions. [2019-10-13 20:56:17,254 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:17,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 1894 transitions. [2019-10-13 20:56:17,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-13 20:56:17,260 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:17,261 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:17,261 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:17,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:17,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1461103806, now seen corresponding path program 1 times [2019-10-13 20:56:17,262 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:17,262 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390263491] [2019-10-13 20:56:17,262 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:17,263 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:17,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:17,576 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2019-10-13 20:56:17,576 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390263491] [2019-10-13 20:56:17,576 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:17,576 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:17,577 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594463772] [2019-10-13 20:56:17,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:17,578 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:17,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:17,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:17,579 INFO L87 Difference]: Start difference. First operand 1497 states and 1894 transitions. Second operand 3 states. [2019-10-13 20:56:17,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:17,748 INFO L93 Difference]: Finished difference Result 4358 states and 5558 transitions. [2019-10-13 20:56:17,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:17,748 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2019-10-13 20:56:17,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:17,767 INFO L225 Difference]: With dead ends: 4358 [2019-10-13 20:56:17,767 INFO L226 Difference]: Without dead ends: 2866 [2019-10-13 20:56:17,779 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 [2019-10-13 20:56:17,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2866 states. [2019-10-13 20:56:17,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2866 to 2858. [2019-10-13 20:56:17,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2858 states. [2019-10-13 20:56:17,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2858 states to 2858 states and 3643 transitions. [2019-10-13 20:56:17,989 INFO L78 Accepts]: Start accepts. Automaton has 2858 states and 3643 transitions. Word has length 203 [2019-10-13 20:56:17,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:17,991 INFO L462 AbstractCegarLoop]: Abstraction has 2858 states and 3643 transitions. [2019-10-13 20:56:17,991 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:17,991 INFO L276 IsEmpty]: Start isEmpty. Operand 2858 states and 3643 transitions. [2019-10-13 20:56:17,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2019-10-13 20:56:17,998 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:17,998 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:17,998 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:17,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:17,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1904459161, now seen corresponding path program 1 times [2019-10-13 20:56:17,999 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:17,999 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866887517] [2019-10-13 20:56:17,999 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:18,000 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:18,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:18,318 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2019-10-13 20:56:18,318 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866887517] [2019-10-13 20:56:18,319 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:18,319 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:18,319 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269116795] [2019-10-13 20:56:18,320 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:18,320 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:18,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:18,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:18,321 INFO L87 Difference]: Start difference. First operand 2858 states and 3643 transitions. Second operand 3 states. [2019-10-13 20:56:18,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:18,555 INFO L93 Difference]: Finished difference Result 5680 states and 7267 transitions. [2019-10-13 20:56:18,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:18,557 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 272 [2019-10-13 20:56:18,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:18,574 INFO L225 Difference]: With dead ends: 5680 [2019-10-13 20:56:18,574 INFO L226 Difference]: Without dead ends: 2870 [2019-10-13 20:56:18,584 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 [2019-10-13 20:56:18,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states. [2019-10-13 20:56:18,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 2860. [2019-10-13 20:56:18,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2860 states. [2019-10-13 20:56:18,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 2860 states and 3645 transitions. [2019-10-13 20:56:18,723 INFO L78 Accepts]: Start accepts. Automaton has 2860 states and 3645 transitions. Word has length 272 [2019-10-13 20:56:18,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:18,724 INFO L462 AbstractCegarLoop]: Abstraction has 2860 states and 3645 transitions. [2019-10-13 20:56:18,724 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:18,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2860 states and 3645 transitions. [2019-10-13 20:56:18,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2019-10-13 20:56:18,730 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:18,730 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:18,731 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:18,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:18,731 INFO L82 PathProgramCache]: Analyzing trace with hash 224162731, now seen corresponding path program 1 times [2019-10-13 20:56:18,731 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:18,732 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219564548] [2019-10-13 20:56:18,732 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:18,732 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:18,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:19,002 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2019-10-13 20:56:19,003 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219564548] [2019-10-13 20:56:19,003 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:19,003 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:19,003 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476150714] [2019-10-13 20:56:19,004 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:19,004 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:19,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:19,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:19,005 INFO L87 Difference]: Start difference. First operand 2860 states and 3645 transitions. Second operand 3 states. [2019-10-13 20:56:19,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:19,287 INFO L93 Difference]: Finished difference Result 5683 states and 7237 transitions. [2019-10-13 20:56:19,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:19,288 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 287 [2019-10-13 20:56:19,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:19,315 INFO L225 Difference]: With dead ends: 5683 [2019-10-13 20:56:19,315 INFO L226 Difference]: Without dead ends: 2869 [2019-10-13 20:56:19,326 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 [2019-10-13 20:56:19,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2869 states. [2019-10-13 20:56:19,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2869 to 2850. [2019-10-13 20:56:19,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2850 states. [2019-10-13 20:56:19,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2850 states to 2850 states and 3629 transitions. [2019-10-13 20:56:19,518 INFO L78 Accepts]: Start accepts. Automaton has 2850 states and 3629 transitions. Word has length 287 [2019-10-13 20:56:19,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:19,518 INFO L462 AbstractCegarLoop]: Abstraction has 2850 states and 3629 transitions. [2019-10-13 20:56:19,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:19,519 INFO L276 IsEmpty]: Start isEmpty. Operand 2850 states and 3629 transitions. [2019-10-13 20:56:19,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2019-10-13 20:56:19,525 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:19,525 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:19,525 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:19,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:19,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1145941263, now seen corresponding path program 1 times [2019-10-13 20:56:19,526 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:19,526 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837769723] [2019-10-13 20:56:19,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:19,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:19,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:19,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:19,877 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2019-10-13 20:56:19,877 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837769723] [2019-10-13 20:56:19,877 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:19,878 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 20:56:19,878 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395973024] [2019-10-13 20:56:19,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 20:56:19,879 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:19,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 20:56:19,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:56:19,879 INFO L87 Difference]: Start difference. First operand 2850 states and 3629 transitions. Second operand 7 states. [2019-10-13 20:56:20,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:20,183 INFO L93 Difference]: Finished difference Result 5676 states and 7221 transitions. [2019-10-13 20:56:20,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:56:20,184 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 301 [2019-10-13 20:56:20,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:20,200 INFO L225 Difference]: With dead ends: 5676 [2019-10-13 20:56:20,201 INFO L226 Difference]: Without dead ends: 2863 [2019-10-13 20:56:20,210 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 [2019-10-13 20:56:20,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2019-10-13 20:56:20,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 2852. [2019-10-13 20:56:20,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2852 states. [2019-10-13 20:56:20,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3627 transitions. [2019-10-13 20:56:20,350 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3627 transitions. Word has length 301 [2019-10-13 20:56:20,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:20,351 INFO L462 AbstractCegarLoop]: Abstraction has 2852 states and 3627 transitions. [2019-10-13 20:56:20,351 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 20:56:20,351 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3627 transitions. [2019-10-13 20:56:20,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2019-10-13 20:56:20,358 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:20,358 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:20,359 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:20,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:20,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1693092624, now seen corresponding path program 1 times [2019-10-13 20:56:20,359 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:20,359 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245120740] [2019-10-13 20:56:20,360 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:20,360 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:20,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:20,754 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2019-10-13 20:56:20,757 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245120740] [2019-10-13 20:56:20,757 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:20,757 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:20,758 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250457110] [2019-10-13 20:56:20,758 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:20,758 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:20,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:20,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:20,759 INFO L87 Difference]: Start difference. First operand 2852 states and 3627 transitions. Second operand 3 states. [2019-10-13 20:56:20,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:20,979 INFO L93 Difference]: Finished difference Result 2860 states and 3633 transitions. [2019-10-13 20:56:20,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:20,979 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 330 [2019-10-13 20:56:20,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:20,998 INFO L225 Difference]: With dead ends: 2860 [2019-10-13 20:56:20,998 INFO L226 Difference]: Without dead ends: 2857 [2019-10-13 20:56:21,000 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 [2019-10-13 20:56:21,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2019-10-13 20:56:21,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 2851. [2019-10-13 20:56:21,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2851 states. [2019-10-13 20:56:21,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2851 states to 2851 states and 3624 transitions. [2019-10-13 20:56:21,141 INFO L78 Accepts]: Start accepts. Automaton has 2851 states and 3624 transitions. Word has length 330 [2019-10-13 20:56:21,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:21,141 INFO L462 AbstractCegarLoop]: Abstraction has 2851 states and 3624 transitions. [2019-10-13 20:56:21,142 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:21,142 INFO L276 IsEmpty]: Start isEmpty. Operand 2851 states and 3624 transitions. [2019-10-13 20:56:21,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2019-10-13 20:56:21,152 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:21,153 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:21,153 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:21,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:21,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1116106025, now seen corresponding path program 1 times [2019-10-13 20:56:21,154 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:21,154 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116229154] [2019-10-13 20:56:21,154 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:21,154 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:21,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:21,478 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2019-10-13 20:56:21,479 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116229154] [2019-10-13 20:56:21,479 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:21,479 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:21,479 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670519979] [2019-10-13 20:56:21,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:21,481 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:21,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:21,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:21,482 INFO L87 Difference]: Start difference. First operand 2851 states and 3624 transitions. Second operand 3 states. [2019-10-13 20:56:21,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:21,872 INFO L93 Difference]: Finished difference Result 5656 states and 7190 transitions. [2019-10-13 20:56:21,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:21,873 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 361 [2019-10-13 20:56:21,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:21,896 INFO L225 Difference]: With dead ends: 5656 [2019-10-13 20:56:21,896 INFO L226 Difference]: Without dead ends: 2853 [2019-10-13 20:56:21,909 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 [2019-10-13 20:56:21,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2853 states. [2019-10-13 20:56:22,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2853 to 2849. [2019-10-13 20:56:22,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2849 states. [2019-10-13 20:56:22,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2849 states to 2849 states and 3596 transitions. [2019-10-13 20:56:22,068 INFO L78 Accepts]: Start accepts. Automaton has 2849 states and 3596 transitions. Word has length 361 [2019-10-13 20:56:22,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:22,069 INFO L462 AbstractCegarLoop]: Abstraction has 2849 states and 3596 transitions. [2019-10-13 20:56:22,069 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:22,069 INFO L276 IsEmpty]: Start isEmpty. Operand 2849 states and 3596 transitions. [2019-10-13 20:56:22,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2019-10-13 20:56:22,079 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:22,080 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:22,080 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:22,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:22,080 INFO L82 PathProgramCache]: Analyzing trace with hash 609374872, now seen corresponding path program 1 times [2019-10-13 20:56:22,081 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:22,081 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873150094] [2019-10-13 20:56:22,081 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:22,081 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:22,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:22,474 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2019-10-13 20:56:22,474 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873150094] [2019-10-13 20:56:22,474 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:22,474 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 20:56:22,475 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719404577] [2019-10-13 20:56:22,475 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 20:56:22,475 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:22,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 20:56:22,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:56:22,476 INFO L87 Difference]: Start difference. First operand 2849 states and 3596 transitions. Second operand 7 states. [2019-10-13 20:56:22,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:22,606 INFO L93 Difference]: Finished difference Result 2976 states and 3730 transitions. [2019-10-13 20:56:22,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:56:22,607 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 361 [2019-10-13 20:56:22,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:22,635 INFO L225 Difference]: With dead ends: 2976 [2019-10-13 20:56:22,635 INFO L226 Difference]: Without dead ends: 2708 [2019-10-13 20:56:22,640 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 [2019-10-13 20:56:22,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2708 states. [2019-10-13 20:56:22,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2708 to 2706. [2019-10-13 20:56:22,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2706 states. [2019-10-13 20:56:22,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2706 states to 2706 states and 3389 transitions. [2019-10-13 20:56:22,767 INFO L78 Accepts]: Start accepts. Automaton has 2706 states and 3389 transitions. Word has length 361 [2019-10-13 20:56:22,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:22,768 INFO L462 AbstractCegarLoop]: Abstraction has 2706 states and 3389 transitions. [2019-10-13 20:56:22,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 20:56:22,768 INFO L276 IsEmpty]: Start isEmpty. Operand 2706 states and 3389 transitions. [2019-10-13 20:56:22,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2019-10-13 20:56:22,785 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:22,785 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:22,785 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:22,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:22,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1038037118, now seen corresponding path program 1 times [2019-10-13 20:56:22,786 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:22,786 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133700800] [2019-10-13 20:56:22,789 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:22,789 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:22,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:22,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:23,212 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2019-10-13 20:56:23,213 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133700800] [2019-10-13 20:56:23,213 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:23,213 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 20:56:23,213 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446067703] [2019-10-13 20:56:23,214 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 20:56:23,214 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:23,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 20:56:23,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:56:23,215 INFO L87 Difference]: Start difference. First operand 2706 states and 3389 transitions. Second operand 7 states. [2019-10-13 20:56:23,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:23,368 INFO L93 Difference]: Finished difference Result 3808 states and 4754 transitions. [2019-10-13 20:56:23,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:56:23,369 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 365 [2019-10-13 20:56:23,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:23,381 INFO L225 Difference]: With dead ends: 3808 [2019-10-13 20:56:23,381 INFO L226 Difference]: Without dead ends: 2704 [2019-10-13 20:56:23,388 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 [2019-10-13 20:56:23,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2704 states. [2019-10-13 20:56:23,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2704 to 2702. [2019-10-13 20:56:23,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2702 states. [2019-10-13 20:56:23,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2702 states to 2702 states and 3383 transitions. [2019-10-13 20:56:23,514 INFO L78 Accepts]: Start accepts. Automaton has 2702 states and 3383 transitions. Word has length 365 [2019-10-13 20:56:23,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:23,514 INFO L462 AbstractCegarLoop]: Abstraction has 2702 states and 3383 transitions. [2019-10-13 20:56:23,514 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 20:56:23,515 INFO L276 IsEmpty]: Start isEmpty. Operand 2702 states and 3383 transitions. [2019-10-13 20:56:23,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2019-10-13 20:56:23,526 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:23,526 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:23,527 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:23,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:23,527 INFO L82 PathProgramCache]: Analyzing trace with hash 95830483, now seen corresponding path program 1 times [2019-10-13 20:56:23,527 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:23,527 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072543303] [2019-10-13 20:56:23,528 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:23,528 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:23,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:23,971 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2019-10-13 20:56:23,972 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072543303] [2019-10-13 20:56:23,974 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:23,974 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:23,974 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946436653] [2019-10-13 20:56:23,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:23,975 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:23,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:23,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:23,976 INFO L87 Difference]: Start difference. First operand 2702 states and 3383 transitions. Second operand 3 states. [2019-10-13 20:56:24,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:24,325 INFO L93 Difference]: Finished difference Result 6427 states and 8026 transitions. [2019-10-13 20:56:24,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:24,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 380 [2019-10-13 20:56:24,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:24,342 INFO L225 Difference]: With dead ends: 6427 [2019-10-13 20:56:24,342 INFO L226 Difference]: Without dead ends: 3773 [2019-10-13 20:56:24,351 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 [2019-10-13 20:56:24,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3773 states. [2019-10-13 20:56:24,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3773 to 3694. [2019-10-13 20:56:24,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3694 states. [2019-10-13 20:56:24,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 4604 transitions. [2019-10-13 20:56:24,500 INFO L78 Accepts]: Start accepts. Automaton has 3694 states and 4604 transitions. Word has length 380 [2019-10-13 20:56:24,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:24,501 INFO L462 AbstractCegarLoop]: Abstraction has 3694 states and 4604 transitions. [2019-10-13 20:56:24,501 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:24,501 INFO L276 IsEmpty]: Start isEmpty. Operand 3694 states and 4604 transitions. [2019-10-13 20:56:24,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2019-10-13 20:56:24,516 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:24,516 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:24,516 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:24,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:24,517 INFO L82 PathProgramCache]: Analyzing trace with hash -804495563, now seen corresponding path program 1 times [2019-10-13 20:56:24,517 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:24,517 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199145371] [2019-10-13 20:56:24,518 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:24,518 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:24,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:24,909 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2019-10-13 20:56:24,910 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199145371] [2019-10-13 20:56:24,910 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:24,910 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:24,910 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679304184] [2019-10-13 20:56:24,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:24,911 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:24,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:24,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:24,913 INFO L87 Difference]: Start difference. First operand 3694 states and 4604 transitions. Second operand 3 states. [2019-10-13 20:56:25,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:25,066 INFO L93 Difference]: Finished difference Result 7343 states and 9173 transitions. [2019-10-13 20:56:25,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:25,067 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 433 [2019-10-13 20:56:25,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:25,094 INFO L225 Difference]: With dead ends: 7343 [2019-10-13 20:56:25,094 INFO L226 Difference]: Without dead ends: 3697 [2019-10-13 20:56:25,106 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 [2019-10-13 20:56:25,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3697 states. [2019-10-13 20:56:25,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3697 to 3694. [2019-10-13 20:56:25,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3694 states. [2019-10-13 20:56:25,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 4595 transitions. [2019-10-13 20:56:25,257 INFO L78 Accepts]: Start accepts. Automaton has 3694 states and 4595 transitions. Word has length 433 [2019-10-13 20:56:25,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:25,258 INFO L462 AbstractCegarLoop]: Abstraction has 3694 states and 4595 transitions. [2019-10-13 20:56:25,258 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:25,258 INFO L276 IsEmpty]: Start isEmpty. Operand 3694 states and 4595 transitions. [2019-10-13 20:56:25,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2019-10-13 20:56:25,274 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:25,275 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:25,322 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:25,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:25,322 INFO L82 PathProgramCache]: Analyzing trace with hash 595273638, now seen corresponding path program 1 times [2019-10-13 20:56:25,323 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:25,323 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305855999] [2019-10-13 20:56:25,323 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:25,323 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:25,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:25,698 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2019-10-13 20:56:25,699 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305855999] [2019-10-13 20:56:25,699 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:25,699 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 20:56:25,700 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45335447] [2019-10-13 20:56:25,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 20:56:25,701 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:25,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 20:56:25,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:56:25,701 INFO L87 Difference]: Start difference. First operand 3694 states and 4595 transitions. Second operand 7 states. [2019-10-13 20:56:25,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:25,847 INFO L93 Difference]: Finished difference Result 5172 states and 6412 transitions. [2019-10-13 20:56:25,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:56:25,848 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 436 [2019-10-13 20:56:25,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:25,862 INFO L225 Difference]: With dead ends: 5172 [2019-10-13 20:56:25,863 INFO L226 Difference]: Without dead ends: 3693 [2019-10-13 20:56:25,868 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 [2019-10-13 20:56:25,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3693 states. [2019-10-13 20:56:25,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3693 to 3691. [2019-10-13 20:56:25,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3691 states. [2019-10-13 20:56:26,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3691 states to 3691 states and 4591 transitions. [2019-10-13 20:56:26,009 INFO L78 Accepts]: Start accepts. Automaton has 3691 states and 4591 transitions. Word has length 436 [2019-10-13 20:56:26,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:26,010 INFO L462 AbstractCegarLoop]: Abstraction has 3691 states and 4591 transitions. [2019-10-13 20:56:26,010 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 20:56:26,010 INFO L276 IsEmpty]: Start isEmpty. Operand 3691 states and 4591 transitions. [2019-10-13 20:56:26,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2019-10-13 20:56:26,023 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:26,024 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:26,024 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:26,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:26,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1698695501, now seen corresponding path program 1 times [2019-10-13 20:56:26,025 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:26,025 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643951044] [2019-10-13 20:56:26,025 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:26,025 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:26,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:26,432 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2019-10-13 20:56:26,432 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643951044] [2019-10-13 20:56:26,432 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:26,433 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 20:56:26,433 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883252422] [2019-10-13 20:56:26,433 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 20:56:26,434 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:26,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 20:56:26,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:56:26,434 INFO L87 Difference]: Start difference. First operand 3691 states and 4591 transitions. Second operand 7 states. [2019-10-13 20:56:26,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:26,646 INFO L93 Difference]: Finished difference Result 3742 states and 4640 transitions. [2019-10-13 20:56:26,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:56:26,647 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 445 [2019-10-13 20:56:26,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:26,668 INFO L225 Difference]: With dead ends: 3742 [2019-10-13 20:56:26,669 INFO L226 Difference]: Without dead ends: 3562 [2019-10-13 20:56:26,672 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 [2019-10-13 20:56:26,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3562 states. [2019-10-13 20:56:26,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3562 to 3560. [2019-10-13 20:56:26,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3560 states. [2019-10-13 20:56:26,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 4425 transitions. [2019-10-13 20:56:26,904 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 4425 transitions. Word has length 445 [2019-10-13 20:56:26,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:26,904 INFO L462 AbstractCegarLoop]: Abstraction has 3560 states and 4425 transitions. [2019-10-13 20:56:26,905 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 20:56:26,905 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 4425 transitions. [2019-10-13 20:56:26,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2019-10-13 20:56:26,921 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:26,921 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:26,921 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:26,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:26,922 INFO L82 PathProgramCache]: Analyzing trace with hash 774145943, now seen corresponding path program 1 times [2019-10-13 20:56:26,922 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:26,922 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917510168] [2019-10-13 20:56:26,922 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:26,923 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:26,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:27,337 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2019-10-13 20:56:27,338 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917510168] [2019-10-13 20:56:27,338 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:27,338 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 20:56:27,338 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433722069] [2019-10-13 20:56:27,339 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 20:56:27,340 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:27,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 20:56:27,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:56:27,340 INFO L87 Difference]: Start difference. First operand 3560 states and 4425 transitions. Second operand 7 states. [2019-10-13 20:56:27,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:27,489 INFO L93 Difference]: Finished difference Result 3605 states and 4469 transitions. [2019-10-13 20:56:27,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:56:27,490 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 463 [2019-10-13 20:56:27,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:27,506 INFO L225 Difference]: With dead ends: 3605 [2019-10-13 20:56:27,507 INFO L226 Difference]: Without dead ends: 3551 [2019-10-13 20:56:27,509 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 [2019-10-13 20:56:27,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3551 states. [2019-10-13 20:56:27,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3551 to 3549. [2019-10-13 20:56:27,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3549 states. [2019-10-13 20:56:27,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3549 states to 3549 states and 4410 transitions. [2019-10-13 20:56:27,653 INFO L78 Accepts]: Start accepts. Automaton has 3549 states and 4410 transitions. Word has length 463 [2019-10-13 20:56:27,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:27,654 INFO L462 AbstractCegarLoop]: Abstraction has 3549 states and 4410 transitions. [2019-10-13 20:56:27,654 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 20:56:27,655 INFO L276 IsEmpty]: Start isEmpty. Operand 3549 states and 4410 transitions. [2019-10-13 20:56:27,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2019-10-13 20:56:27,668 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:27,670 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:27,671 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:27,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:27,671 INFO L82 PathProgramCache]: Analyzing trace with hash 233776554, now seen corresponding path program 1 times [2019-10-13 20:56:27,671 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:27,672 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382136615] [2019-10-13 20:56:27,672 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:27,672 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:27,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:27,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:28,126 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2019-10-13 20:56:28,126 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382136615] [2019-10-13 20:56:28,126 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:28,127 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 20:56:28,127 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844970456] [2019-10-13 20:56:28,127 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 20:56:28,128 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:28,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 20:56:28,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:56:28,129 INFO L87 Difference]: Start difference. First operand 3549 states and 4410 transitions. Second operand 7 states. [2019-10-13 20:56:28,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:28,243 INFO L93 Difference]: Finished difference Result 3703 states and 4557 transitions. [2019-10-13 20:56:28,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:56:28,243 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 475 [2019-10-13 20:56:28,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:28,245 INFO L225 Difference]: With dead ends: 3703 [2019-10-13 20:56:28,245 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 20:56:28,254 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 [2019-10-13 20:56:28,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 20:56:28,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 20:56:28,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 20:56:28,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 20:56:28,255 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 475 [2019-10-13 20:56:28,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:28,256 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 20:56:28,256 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 20:56:28,256 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 20:56:28,256 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 20:56:28,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 20:56:32,905 WARN L191 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 23 [2019-10-13 20:56:33,086 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28