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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--phantom.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 20:20:51,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 20:20:51,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 20:20:51,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 20:20:51,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 20:20:51,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 20:20:51,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 20:20:51,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 20:20:51,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 20:20:51,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 20:20:51,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 20:20:51,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 20:20:51,772 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 20:20:51,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 20:20:51,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 20:20:51,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 20:20:51,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 20:20:51,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 20:20:51,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 20:20:51,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 20:20:51,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 20:20:51,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 20:20:51,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 20:20:51,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 20:20:51,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 20:20:51,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 20:20:51,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 20:20:51,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 20:20:51,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 20:20:51,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 20:20:51,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 20:20:51,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 20:20:51,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 20:20:51,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 20:20:51,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 20:20:51,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 20:20:51,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 20:20:51,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 20:20:51,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 20:20:51,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 20:20:51,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 20:20:51,799 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 20:20:51,816 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 20:20:51,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 20:20:51,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 20:20:51,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 20:20:51,818 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 20:20:51,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 20:20:51,818 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 20:20:51,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 20:20:51,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 20:20:51,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 20:20:51,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 20:20:51,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 20:20:51,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 20:20:51,820 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 20:20:51,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 20:20:51,820 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 20:20:51,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 20:20:51,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 20:20:51,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 20:20:51,821 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 20:20:51,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 20:20:51,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:20:51,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 20:20:51,822 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 20:20:51,822 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 20:20:51,822 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 20:20:51,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 20:20:51,823 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 20:20:51,823 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 20:20:52,117 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 20:20:52,135 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 20:20:52,140 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 20:20:52,142 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 20:20:52,142 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 20:20:52,143 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--phantom.ko-main.cil.out.i [2019-10-13 20:20:52,223 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/149e8539e/903a1adcf7a24122b17c1d604fb6dd2e/FLAG84418f2a5 [2019-10-13 20:20:53,018 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 20:20:53,020 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--phantom.ko-main.cil.out.i [2019-10-13 20:20:53,058 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/149e8539e/903a1adcf7a24122b17c1d604fb6dd2e/FLAG84418f2a5 [2019-10-13 20:20:53,092 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/149e8539e/903a1adcf7a24122b17c1d604fb6dd2e [2019-10-13 20:20:53,103 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 20:20:53,104 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 20:20:53,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 20:20:53,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 20:20:53,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 20:20:53,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:20:53" (1/1) ... [2019-10-13 20:20:53,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f36ad98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:20:53, skipping insertion in model container [2019-10-13 20:20:53,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:20:53" (1/1) ... [2019-10-13 20:20:53,122 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 20:20:53,218 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 20:20:54,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:20:54,714 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 20:20:54,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:20:55,166 INFO L192 MainTranslator]: Completed translation [2019-10-13 20:20:55,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:20:55 WrapperNode [2019-10-13 20:20:55,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 20:20:55,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 20:20:55,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 20:20:55,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 20:20:55,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:20:55" (1/1) ... [2019-10-13 20:20:55,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:20:55" (1/1) ... [2019-10-13 20:20:55,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:20:55" (1/1) ... [2019-10-13 20:20:55,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:20:55" (1/1) ... [2019-10-13 20:20:55,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:20:55" (1/1) ... [2019-10-13 20:20:55,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:20:55" (1/1) ... [2019-10-13 20:20:55,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:20:55" (1/1) ... [2019-10-13 20:20:55,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 20:20:55,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 20:20:55,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 20:20:55,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 20:20:55,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:20:55" (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 20:20:55,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 20:20:55,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 20:20:55,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 20:20:55,487 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-13 20:20:55,488 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-13 20:20:55,488 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-13 20:20:55,489 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-13 20:20:55,489 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-13 20:20:55,490 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 20:20:55,491 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-13 20:20:55,491 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-13 20:20:55,491 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-13 20:20:55,491 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-10-13 20:20:55,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 20:20:55,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 20:20:55,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 20:20:55,495 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 20:20:55,495 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 20:20:55,495 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2019-10-13 20:20:55,496 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2019-10-13 20:20:55,496 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-13 20:20:55,496 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-13 20:20:55,496 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-10-13 20:20:55,496 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2019-10-13 20:20:55,496 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_status [2019-10-13 20:20:55,497 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_ioctl [2019-10-13 20:20:55,497 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_compat_ioctl [2019-10-13 20:20:55,497 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_open [2019-10-13 20:20:55,497 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_release [2019-10-13 20:20:55,497 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_poll [2019-10-13 20:20:55,497 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_isr [2019-10-13 20:20:55,498 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_get_free [2019-10-13 20:20:55,498 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_probe [2019-10-13 20:20:55,498 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_remove [2019-10-13 20:20:55,498 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_suspend [2019-10-13 20:20:55,498 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_resume [2019-10-13 20:20:55,499 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_init [2019-10-13 20:20:55,499 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_exit [2019-10-13 20:20:55,499 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 20:20:55,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2019-10-13 20:20:55,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2019-10-13 20:20:55,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2019-10-13 20:20:55,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_4 [2019-10-13 20:20:55,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2019-10-13 20:20:55,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_6 [2019-10-13 20:20:55,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-13 20:20:55,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2019-10-13 20:20:55,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_9 [2019-10-13 20:20:55,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_10 [2019-10-13 20:20:55,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-13 20:20:55,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_12 [2019-10-13 20:20:55,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2019-10-13 20:20:55,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_14 [2019-10-13 20:20:55,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_15 [2019-10-13 20:20:55,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_16 [2019-10-13 20:20:55,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_init_17 [2019-10-13 20:20:55,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_del_18 [2019-10-13 20:20:55,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 20:20:55,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 20:20:55,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 20:20:55,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2019-10-13 20:20:55,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2019-10-13 20:20:55,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-13 20:20:55,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2019-10-13 20:20:55,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-13 20:20:55,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2019-10-13 20:20:55,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2019-10-13 20:20:55,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-13 20:20:55,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-13 20:20:55,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-13 20:20:55,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-13 20:20:55,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-13 20:20:55,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-13 20:20:55,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-13 20:20:55,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-13 20:20:55,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-13 20:20:55,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-13 20:20:55,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-13 20:20:55,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-13 20:20:55,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-13 20:20:55,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-13 20:20:55,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_open_lock_of_phantom_device [2019-10-13 20:20:55,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_open_lock_of_phantom_device [2019-10-13 20:20:55,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_open_lock_of_phantom_device [2019-10-13 20:20:55,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_open_lock_of_phantom_device [2019-10-13 20:20:55,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_open_lock_of_phantom_device [2019-10-13 20:20:55,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_open_lock_of_phantom_device [2019-10-13 20:20:55,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_open_lock_of_phantom_device [2019-10-13 20:20:55,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_phantom_mutex [2019-10-13 20:20:55,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_phantom_mutex [2019-10-13 20:20:55,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_phantom_mutex [2019-10-13 20:20:55,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_phantom_mutex [2019-10-13 20:20:55,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_phantom_mutex [2019-10-13 20:20:55,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_phantom_mutex [2019-10-13 20:20:55,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_phantom_mutex [2019-10-13 20:20:55,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 20:20:55,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 20:20:55,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2019-10-13 20:20:55,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2019-10-13 20:20:55,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-13 20:20:55,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-13 20:20:55,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_register_driver [2019-10-13 20:20:55,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 20:20:55,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-13 20:20:55,512 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-13 20:20:55,512 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-13 20:20:55,512 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-13 20:20:55,512 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-13 20:20:55,513 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-13 20:20:55,513 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-13 20:20:55,513 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2019-10-13 20:20:55,513 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2019-10-13 20:20:55,513 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2019-10-13 20:20:55,513 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2019-10-13 20:20:55,514 INFO L138 BoogieDeclarations]: Found implementation of procedure class_create_file [2019-10-13 20:20:55,514 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2019-10-13 20:20:55,514 INFO L138 BoogieDeclarations]: Found implementation of procedure class_remove_file [2019-10-13 20:20:55,514 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-13 20:20:55,514 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 20:20:55,515 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 20:20:55,515 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-10-13 20:20:55,516 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-10-13 20:20:55,516 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2019-10-13 20:20:55,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2019-10-13 20:20:55,517 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2019-10-13 20:20:55,517 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-13 20:20:55,517 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-13 20:20:55,517 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-10-13 20:20:55,517 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-13 20:20:55,517 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 20:20:55,518 INFO L138 BoogieDeclarations]: Found implementation of procedure no_llseek [2019-10-13 20:20:55,518 INFO L138 BoogieDeclarations]: Found implementation of procedure nonseekable_open [2019-10-13 20:20:55,518 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2019-10-13 20:20:55,518 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2019-10-13 20:20:55,519 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2019-10-13 20:20:55,519 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2019-10-13 20:20:55,520 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2019-10-13 20:20:55,522 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_regions [2019-10-13 20:20:55,523 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2019-10-13 20:20:55,523 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 20:20:55,524 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2019-10-13 20:20:55,524 INFO L138 BoogieDeclarations]: Found implementation of procedure show_class_attr_string [2019-10-13 20:20:55,524 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2019-10-13 20:20:55,524 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2019-10-13 20:20:55,531 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-10-13 20:20:55,532 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-13 20:20:55,532 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 20:20:55,532 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 20:20:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 20:20:55,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 20:20:55,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 20:20:55,533 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 20:20:55,533 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2019-10-13 20:20:55,533 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-13 20:20:55,533 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 20:20:55,533 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-10-13 20:20:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-13 20:20:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-13 20:20:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-13 20:20:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-13 20:20:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 20:20:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-13 20:20:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 20:20:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-13 20:20:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-13 20:20:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-13 20:20:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_6 [2019-10-13 20:20:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 20:20:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2019-10-13 20:20:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_4 [2019-10-13 20:20:55,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-13 20:20:55,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_10 [2019-10-13 20:20:55,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-13 20:20:55,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_12 [2019-10-13 20:20:55,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2019-10-13 20:20:55,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_14 [2019-10-13 20:20:55,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_16 [2019-10-13 20:20:55,537 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-10-13 20:20:55,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_9 [2019-10-13 20:20:55,537 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-13 20:20:55,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2019-10-13 20:20:55,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2019-10-13 20:20:55,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2019-10-13 20:20:55,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2019-10-13 20:20:55,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_15 [2019-10-13 20:20:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-13 20:20:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2019-10-13 20:20:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-13 20:20:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-13 20:20:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-13 20:20:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-13 20:20:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-13 20:20:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_open_lock_of_phantom_device [2019-10-13 20:20:55,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_open_lock_of_phantom_device [2019-10-13 20:20:55,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_open_lock_of_phantom_device [2019-10-13 20:20:55,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_phantom_mutex [2019-10-13 20:20:55,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_phantom_mutex [2019-10-13 20:20:55,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 20:20:55,539 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 20:20:55,539 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-13 20:20:55,540 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-13 20:20:55,540 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-13 20:20:55,540 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-13 20:20:55,540 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 20:20:55,540 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-13 20:20:55,540 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-13 20:20:55,540 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-13 20:20:55,540 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-13 20:20:55,541 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-13 20:20:55,541 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2019-10-13 20:20:55,541 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2019-10-13 20:20:55,541 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2019-10-13 20:20:55,541 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2019-10-13 20:20:55,541 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2019-10-13 20:20:55,541 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2019-10-13 20:20:55,542 INFO L130 BoogieDeclarations]: Found specification of procedure no_llseek [2019-10-13 20:20:55,542 INFO L130 BoogieDeclarations]: Found specification of procedure nonseekable_open [2019-10-13 20:20:55,542 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-10-13 20:20:55,542 INFO L130 BoogieDeclarations]: Found specification of procedure class_create_file [2019-10-13 20:20:55,542 INFO L130 BoogieDeclarations]: Found specification of procedure class_remove_file [2019-10-13 20:20:55,542 INFO L130 BoogieDeclarations]: Found specification of procedure show_class_attr_string [2019-10-13 20:20:55,542 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2019-10-13 20:20:55,542 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2019-10-13 20:20:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 20:20:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 20:20:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-10-13 20:20:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-10-13 20:20:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-13 20:20:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2019-10-13 20:20:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2019-10-13 20:20:55,544 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_regions [2019-10-13 20:20:55,544 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2019-10-13 20:20:55,544 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_register_driver [2019-10-13 20:20:55,544 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2019-10-13 20:20:55,544 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 20:20:55,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 20:20:55,544 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 20:20:55,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 20:20:55,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 20:20:55,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 20:20:55,545 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 20:20:55,545 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 20:20:55,545 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 20:20:55,545 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2019-10-13 20:20:55,545 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2019-10-13 20:20:55,545 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-13 20:20:55,546 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-13 20:20:55,546 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-13 20:20:55,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 20:20:55,546 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-13 20:20:55,546 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-10-13 20:20:55,546 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 20:20:55,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 20:20:55,547 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2019-10-13 20:20:55,547 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2019-10-13 20:20:55,547 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2019-10-13 20:20:55,547 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2019-10-13 20:20:55,547 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2019-10-13 20:20:55,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_init_17 [2019-10-13 20:20:55,547 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2019-10-13 20:20:55,547 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2019-10-13 20:20:55,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_del_18 [2019-10-13 20:20:55,548 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_status [2019-10-13 20:20:55,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 20:20:55,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 20:20:55,553 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_ioctl [2019-10-13 20:20:55,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 20:20:55,553 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_compat_ioctl [2019-10-13 20:20:55,553 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_open [2019-10-13 20:20:55,553 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_release [2019-10-13 20:20:55,553 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_poll [2019-10-13 20:20:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_isr [2019-10-13 20:20:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_get_free [2019-10-13 20:20:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_probe [2019-10-13 20:20:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_remove [2019-10-13 20:20:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_suspend [2019-10-13 20:20:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_resume [2019-10-13 20:20:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_init [2019-10-13 20:20:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_exit [2019-10-13 20:20:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 20:20:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 20:20:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 20:20:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 20:20:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 20:20:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2019-10-13 20:20:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2019-10-13 20:20:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2019-10-13 20:20:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-13 20:20:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2019-10-13 20:20:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-13 20:20:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-13 20:20:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-13 20:20:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-13 20:20:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-13 20:20:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-13 20:20:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-13 20:20:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-13 20:20:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-13 20:20:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_open_lock_of_phantom_device [2019-10-13 20:20:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_open_lock_of_phantom_device [2019-10-13 20:20:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_open_lock_of_phantom_device [2019-10-13 20:20:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_open_lock_of_phantom_device [2019-10-13 20:20:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_phantom_mutex [2019-10-13 20:20:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_phantom_mutex [2019-10-13 20:20:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_phantom_mutex [2019-10-13 20:20:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_phantom_mutex [2019-10-13 20:20:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_phantom_mutex [2019-10-13 20:20:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 20:20:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 20:20:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 20:20:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-13 20:20:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 20:20:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 20:20:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 20:20:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 20:20:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 20:20:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 20:20:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 20:20:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 20:20:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 20:20:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 20:20:59,899 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 20:20:59,899 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 20:20:59,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:20:59 BoogieIcfgContainer [2019-10-13 20:20:59,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 20:20:59,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 20:20:59,903 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 20:20:59,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 20:20:59,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:20:53" (1/3) ... [2019-10-13 20:20:59,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec7a7a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:20:59, skipping insertion in model container [2019-10-13 20:20:59,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:20:55" (2/3) ... [2019-10-13 20:20:59,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec7a7a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:20:59, skipping insertion in model container [2019-10-13 20:20:59,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:20:59" (3/3) ... [2019-10-13 20:20:59,913 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--misc--phantom.ko-main.cil.out.i [2019-10-13 20:20:59,926 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 20:20:59,940 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 20:20:59,955 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 20:20:59,991 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 20:20:59,991 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 20:20:59,992 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 20:20:59,992 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 20:20:59,992 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 20:20:59,992 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 20:20:59,992 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 20:20:59,992 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 20:21:00,033 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states. [2019-10-13 20:21:00,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-13 20:21:00,043 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:21:00,044 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:21:00,046 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:21:00,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:21:00,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1370570878, now seen corresponding path program 1 times [2019-10-13 20:21:00,065 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:21:00,065 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407134432] [2019-10-13 20:21:00,066 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:00,066 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:00,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:21:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:21:00,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:21:00,745 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407134432] [2019-10-13 20:21:00,746 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:21:00,747 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:21:00,747 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311657564] [2019-10-13 20:21:00,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:21:00,755 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:21:00,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:21:00,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:21:00,775 INFO L87 Difference]: Start difference. First operand 958 states. Second operand 3 states. [2019-10-13 20:21:01,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:21:01,298 INFO L93 Difference]: Finished difference Result 1897 states and 2442 transitions. [2019-10-13 20:21:01,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:21:01,300 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-10-13 20:21:01,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:21:01,333 INFO L225 Difference]: With dead ends: 1897 [2019-10-13 20:21:01,333 INFO L226 Difference]: Without dead ends: 1098 [2019-10-13 20:21:01,344 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 20:21:01,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2019-10-13 20:21:01,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1056. [2019-10-13 20:21:01,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2019-10-13 20:21:01,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1331 transitions. [2019-10-13 20:21:01,532 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1331 transitions. Word has length 27 [2019-10-13 20:21:01,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:21:01,533 INFO L462 AbstractCegarLoop]: Abstraction has 1056 states and 1331 transitions. [2019-10-13 20:21:01,533 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:21:01,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1331 transitions. [2019-10-13 20:21:01,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-13 20:21:01,542 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:21:01,542 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:21:01,545 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:21:01,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:21:01,546 INFO L82 PathProgramCache]: Analyzing trace with hash -274796882, now seen corresponding path program 1 times [2019-10-13 20:21:01,546 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:21:01,546 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18211116] [2019-10-13 20:21:01,546 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:01,547 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:01,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:21:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:21:01,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:21:01,799 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18211116] [2019-10-13 20:21:01,799 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:21:01,799 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:21:01,799 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882999501] [2019-10-13 20:21:01,802 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:21:01,802 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:21:01,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:21:01,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:21:01,803 INFO L87 Difference]: Start difference. First operand 1056 states and 1331 transitions. Second operand 3 states. [2019-10-13 20:21:02,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:21:02,525 INFO L93 Difference]: Finished difference Result 3007 states and 3798 transitions. [2019-10-13 20:21:02,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:21:02,526 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2019-10-13 20:21:02,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:21:02,540 INFO L225 Difference]: With dead ends: 3007 [2019-10-13 20:21:02,540 INFO L226 Difference]: Without dead ends: 1962 [2019-10-13 20:21:02,545 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 20:21:02,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2019-10-13 20:21:02,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1955. [2019-10-13 20:21:02,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1955 states. [2019-10-13 20:21:02,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1955 states to 1955 states and 2466 transitions. [2019-10-13 20:21:02,672 INFO L78 Accepts]: Start accepts. Automaton has 1955 states and 2466 transitions. Word has length 50 [2019-10-13 20:21:02,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:21:02,673 INFO L462 AbstractCegarLoop]: Abstraction has 1955 states and 2466 transitions. [2019-10-13 20:21:02,673 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:21:02,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1955 states and 2466 transitions. [2019-10-13 20:21:02,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-13 20:21:02,678 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:21:02,678 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:21:02,679 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:21:02,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:21:02,679 INFO L82 PathProgramCache]: Analyzing trace with hash 529971578, now seen corresponding path program 1 times [2019-10-13 20:21:02,679 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:21:02,679 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419607653] [2019-10-13 20:21:02,680 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:02,680 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:02,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:21:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:21:02,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:21:02,851 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419607653] [2019-10-13 20:21:02,851 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:21:02,851 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:21:02,851 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660980183] [2019-10-13 20:21:02,852 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:21:02,852 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:21:02,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:21:02,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:21:02,854 INFO L87 Difference]: Start difference. First operand 1955 states and 2466 transitions. Second operand 3 states. [2019-10-13 20:21:02,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:21:02,993 INFO L93 Difference]: Finished difference Result 1981 states and 2498 transitions. [2019-10-13 20:21:02,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:21:02,994 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2019-10-13 20:21:02,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:21:03,007 INFO L225 Difference]: With dead ends: 1981 [2019-10-13 20:21:03,007 INFO L226 Difference]: Without dead ends: 1968 [2019-10-13 20:21:03,009 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 20:21:03,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2019-10-13 20:21:03,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1955. [2019-10-13 20:21:03,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1955 states. [2019-10-13 20:21:03,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1955 states to 1955 states and 2464 transitions. [2019-10-13 20:21:03,179 INFO L78 Accepts]: Start accepts. Automaton has 1955 states and 2464 transitions. Word has length 56 [2019-10-13 20:21:03,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:21:03,179 INFO L462 AbstractCegarLoop]: Abstraction has 1955 states and 2464 transitions. [2019-10-13 20:21:03,180 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:21:03,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1955 states and 2464 transitions. [2019-10-13 20:21:03,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-13 20:21:03,181 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:21:03,181 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:21:03,182 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:21:03,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:21:03,182 INFO L82 PathProgramCache]: Analyzing trace with hash 587229880, now seen corresponding path program 1 times [2019-10-13 20:21:03,182 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:21:03,182 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355423193] [2019-10-13 20:21:03,183 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:03,183 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:03,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:21:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:21:03,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:21:03,357 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355423193] [2019-10-13 20:21:03,357 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:21:03,357 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:21:03,358 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211640270] [2019-10-13 20:21:03,358 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:21:03,359 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:21:03,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:21:03,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:21:03,359 INFO L87 Difference]: Start difference. First operand 1955 states and 2464 transitions. Second operand 3 states. [2019-10-13 20:21:03,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:21:03,879 INFO L93 Difference]: Finished difference Result 1957 states and 2465 transitions. [2019-10-13 20:21:03,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:21:03,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2019-10-13 20:21:03,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:21:03,892 INFO L225 Difference]: With dead ends: 1957 [2019-10-13 20:21:03,892 INFO L226 Difference]: Without dead ends: 1954 [2019-10-13 20:21:03,894 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 20:21:03,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2019-10-13 20:21:03,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1954. [2019-10-13 20:21:03,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1954 states. [2019-10-13 20:21:03,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2462 transitions. [2019-10-13 20:21:03,994 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2462 transitions. Word has length 56 [2019-10-13 20:21:03,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:21:03,995 INFO L462 AbstractCegarLoop]: Abstraction has 1954 states and 2462 transitions. [2019-10-13 20:21:03,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:21:03,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2462 transitions. [2019-10-13 20:21:03,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-13 20:21:03,998 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:21:03,998 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:21:03,998 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:21:03,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:21:03,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1023514197, now seen corresponding path program 1 times [2019-10-13 20:21:03,999 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:21:03,999 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309293189] [2019-10-13 20:21:03,999 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:03,999 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:04,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:21:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:21:04,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:21:04,202 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309293189] [2019-10-13 20:21:04,202 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:21:04,202 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:21:04,203 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398609088] [2019-10-13 20:21:04,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:21:04,203 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:21:04,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:21:04,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:21:04,204 INFO L87 Difference]: Start difference. First operand 1954 states and 2462 transitions. Second operand 3 states. [2019-10-13 20:21:05,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:21:05,702 INFO L93 Difference]: Finished difference Result 1956 states and 2463 transitions. [2019-10-13 20:21:05,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:21:05,702 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2019-10-13 20:21:05,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:21:05,720 INFO L225 Difference]: With dead ends: 1956 [2019-10-13 20:21:05,720 INFO L226 Difference]: Without dead ends: 1953 [2019-10-13 20:21:05,724 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 20:21:05,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2019-10-13 20:21:05,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1953. [2019-10-13 20:21:05,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1953 states. [2019-10-13 20:21:05,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1953 states to 1953 states and 2460 transitions. [2019-10-13 20:21:05,831 INFO L78 Accepts]: Start accepts. Automaton has 1953 states and 2460 transitions. Word has length 57 [2019-10-13 20:21:05,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:21:05,832 INFO L462 AbstractCegarLoop]: Abstraction has 1953 states and 2460 transitions. [2019-10-13 20:21:05,832 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:21:05,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1953 states and 2460 transitions. [2019-10-13 20:21:05,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-13 20:21:05,837 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:21:05,838 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:21:05,838 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:21:05,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:21:05,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1663431003, now seen corresponding path program 1 times [2019-10-13 20:21:05,839 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:21:05,839 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710759440] [2019-10-13 20:21:05,839 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:05,840 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:05,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:21:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:21:06,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:21:06,010 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710759440] [2019-10-13 20:21:06,010 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:21:06,010 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:21:06,011 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863963499] [2019-10-13 20:21:06,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:21:06,011 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:21:06,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:21:06,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:21:06,012 INFO L87 Difference]: Start difference. First operand 1953 states and 2460 transitions. Second operand 3 states. [2019-10-13 20:21:06,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:21:06,806 INFO L93 Difference]: Finished difference Result 1955 states and 2461 transitions. [2019-10-13 20:21:06,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:21:06,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2019-10-13 20:21:06,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:21:06,818 INFO L225 Difference]: With dead ends: 1955 [2019-10-13 20:21:06,819 INFO L226 Difference]: Without dead ends: 1952 [2019-10-13 20:21:06,820 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 20:21:06,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1952 states. [2019-10-13 20:21:06,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1952 to 1952. [2019-10-13 20:21:06,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1952 states. [2019-10-13 20:21:06,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1952 states to 1952 states and 2458 transitions. [2019-10-13 20:21:06,922 INFO L78 Accepts]: Start accepts. Automaton has 1952 states and 2458 transitions. Word has length 58 [2019-10-13 20:21:06,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:21:06,922 INFO L462 AbstractCegarLoop]: Abstraction has 1952 states and 2458 transitions. [2019-10-13 20:21:06,922 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:21:06,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1952 states and 2458 transitions. [2019-10-13 20:21:06,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-13 20:21:06,924 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:21:06,924 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:21:06,924 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:21:06,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:21:06,924 INFO L82 PathProgramCache]: Analyzing trace with hash 26020376, now seen corresponding path program 1 times [2019-10-13 20:21:06,925 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:21:06,925 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633910278] [2019-10-13 20:21:06,925 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:06,925 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:06,925 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:21:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:21:07,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:21:07,047 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633910278] [2019-10-13 20:21:07,047 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:21:07,047 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:21:07,048 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865497195] [2019-10-13 20:21:07,048 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:21:07,048 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:21:07,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:21:07,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:21:07,049 INFO L87 Difference]: Start difference. First operand 1952 states and 2458 transitions. Second operand 3 states. [2019-10-13 20:21:08,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:21:08,199 INFO L93 Difference]: Finished difference Result 5741 states and 7265 transitions. [2019-10-13 20:21:08,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:21:08,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2019-10-13 20:21:08,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:21:08,227 INFO L225 Difference]: With dead ends: 5741 [2019-10-13 20:21:08,227 INFO L226 Difference]: Without dead ends: 3800 [2019-10-13 20:21:08,238 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 20:21:08,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3800 states. [2019-10-13 20:21:08,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3800 to 3786. [2019-10-13 20:21:08,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3786 states. [2019-10-13 20:21:08,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3786 states to 3786 states and 4786 transitions. [2019-10-13 20:21:08,469 INFO L78 Accepts]: Start accepts. Automaton has 3786 states and 4786 transitions. Word has length 59 [2019-10-13 20:21:08,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:21:08,470 INFO L462 AbstractCegarLoop]: Abstraction has 3786 states and 4786 transitions. [2019-10-13 20:21:08,470 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:21:08,470 INFO L276 IsEmpty]: Start isEmpty. Operand 3786 states and 4786 transitions. [2019-10-13 20:21:08,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-13 20:21:08,472 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:21:08,472 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:21:08,473 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:21:08,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:21:08,473 INFO L82 PathProgramCache]: Analyzing trace with hash 805903358, now seen corresponding path program 1 times [2019-10-13 20:21:08,473 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:21:08,474 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294383991] [2019-10-13 20:21:08,474 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:08,474 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:08,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:21:08,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:21:08,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:21:08,763 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294383991] [2019-10-13 20:21:08,764 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:21:08,764 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:21:08,764 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382936373] [2019-10-13 20:21:08,764 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:21:08,765 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:21:08,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:21:08,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:21:08,767 INFO L87 Difference]: Start difference. First operand 3786 states and 4786 transitions. Second operand 3 states. [2019-10-13 20:21:09,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:21:09,616 INFO L93 Difference]: Finished difference Result 3837 states and 4823 transitions. [2019-10-13 20:21:09,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:21:09,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-10-13 20:21:09,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:21:09,644 INFO L225 Difference]: With dead ends: 3837 [2019-10-13 20:21:09,644 INFO L226 Difference]: Without dead ends: 3773 [2019-10-13 20:21:09,647 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 20:21:09,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3773 states. [2019-10-13 20:21:09,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3773 to 3753. [2019-10-13 20:21:09,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3753 states. [2019-10-13 20:21:09,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3753 states to 3753 states and 4726 transitions. [2019-10-13 20:21:09,852 INFO L78 Accepts]: Start accepts. Automaton has 3753 states and 4726 transitions. Word has length 60 [2019-10-13 20:21:09,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:21:09,852 INFO L462 AbstractCegarLoop]: Abstraction has 3753 states and 4726 transitions. [2019-10-13 20:21:09,852 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:21:09,852 INFO L276 IsEmpty]: Start isEmpty. Operand 3753 states and 4726 transitions. [2019-10-13 20:21:09,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-10-13 20:21:09,858 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:21:09,859 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2019-10-13 20:21:09,859 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:21:09,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:21:09,859 INFO L82 PathProgramCache]: Analyzing trace with hash 953655475, now seen corresponding path program 1 times [2019-10-13 20:21:09,860 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:21:09,860 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73807943] [2019-10-13 20:21:09,860 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:09,860 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:09,860 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:21:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:21:10,044 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-13 20:21:10,045 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73807943] [2019-10-13 20:21:10,045 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:21:10,045 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:21:10,045 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970357488] [2019-10-13 20:21:10,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:21:10,046 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:21:10,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:21:10,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:21:10,047 INFO L87 Difference]: Start difference. First operand 3753 states and 4726 transitions. Second operand 3 states. [2019-10-13 20:21:10,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:21:10,484 INFO L93 Difference]: Finished difference Result 9583 states and 12170 transitions. [2019-10-13 20:21:10,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:21:10,485 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2019-10-13 20:21:10,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:21:10,530 INFO L225 Difference]: With dead ends: 9583 [2019-10-13 20:21:10,531 INFO L226 Difference]: Without dead ends: 5841 [2019-10-13 20:21:10,552 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 20:21:10,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5841 states. [2019-10-13 20:21:10,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5841 to 5774. [2019-10-13 20:21:10,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5774 states. [2019-10-13 20:21:10,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5774 states to 5774 states and 7377 transitions. [2019-10-13 20:21:10,878 INFO L78 Accepts]: Start accepts. Automaton has 5774 states and 7377 transitions. Word has length 221 [2019-10-13 20:21:10,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:21:10,879 INFO L462 AbstractCegarLoop]: Abstraction has 5774 states and 7377 transitions. [2019-10-13 20:21:10,879 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:21:10,879 INFO L276 IsEmpty]: Start isEmpty. Operand 5774 states and 7377 transitions. [2019-10-13 20:21:10,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2019-10-13 20:21:10,893 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:21:10,893 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 20:21:10,893 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:21:10,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:21:10,894 INFO L82 PathProgramCache]: Analyzing trace with hash -140423935, now seen corresponding path program 1 times [2019-10-13 20:21:10,894 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:21:10,895 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452459966] [2019-10-13 20:21:10,895 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:10,895 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:10,896 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:21:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:21:11,346 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-13 20:21:11,347 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452459966] [2019-10-13 20:21:11,347 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:21:11,347 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:21:11,348 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648302846] [2019-10-13 20:21:11,348 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:21:11,349 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:21:11,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:21:11,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:21:11,355 INFO L87 Difference]: Start difference. First operand 5774 states and 7377 transitions. Second operand 3 states. [2019-10-13 20:21:12,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:21:12,560 INFO L93 Difference]: Finished difference Result 13237 states and 16904 transitions. [2019-10-13 20:21:12,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:21:12,560 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 262 [2019-10-13 20:21:12,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:21:12,627 INFO L225 Difference]: With dead ends: 13237 [2019-10-13 20:21:12,628 INFO L226 Difference]: Without dead ends: 7474 [2019-10-13 20:21:12,659 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 20:21:12,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7474 states. [2019-10-13 20:21:12,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7474 to 7320. [2019-10-13 20:21:12,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7320 states. [2019-10-13 20:21:13,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7320 states to 7320 states and 9313 transitions. [2019-10-13 20:21:13,033 INFO L78 Accepts]: Start accepts. Automaton has 7320 states and 9313 transitions. Word has length 262 [2019-10-13 20:21:13,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:21:13,035 INFO L462 AbstractCegarLoop]: Abstraction has 7320 states and 9313 transitions. [2019-10-13 20:21:13,035 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:21:13,035 INFO L276 IsEmpty]: Start isEmpty. Operand 7320 states and 9313 transitions. [2019-10-13 20:21:13,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2019-10-13 20:21:13,043 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:21:13,043 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-13 20:21:13,043 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:21:13,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:21:13,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1924208959, now seen corresponding path program 1 times [2019-10-13 20:21:13,044 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:21:13,044 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102115412] [2019-10-13 20:21:13,045 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:13,045 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:13,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:21:13,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:21:13,473 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-13 20:21:13,473 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102115412] [2019-10-13 20:21:13,473 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:21:13,474 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 20:21:13,474 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53654659] [2019-10-13 20:21:13,475 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 20:21:13,475 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:21:13,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 20:21:13,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:21:13,475 INFO L87 Difference]: Start difference. First operand 7320 states and 9313 transitions. Second operand 7 states. [2019-10-13 20:21:13,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:21:13,688 INFO L93 Difference]: Finished difference Result 11261 states and 14273 transitions. [2019-10-13 20:21:13,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:21:13,689 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 274 [2019-10-13 20:21:13,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:21:13,709 INFO L225 Difference]: With dead ends: 11261 [2019-10-13 20:21:13,710 INFO L226 Difference]: Without dead ends: 3952 [2019-10-13 20:21:13,734 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 20:21:13,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3952 states. [2019-10-13 20:21:13,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3944. [2019-10-13 20:21:13,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3944 states. [2019-10-13 20:21:13,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3944 states to 3944 states and 4955 transitions. [2019-10-13 20:21:13,917 INFO L78 Accepts]: Start accepts. Automaton has 3944 states and 4955 transitions. Word has length 274 [2019-10-13 20:21:13,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:21:13,920 INFO L462 AbstractCegarLoop]: Abstraction has 3944 states and 4955 transitions. [2019-10-13 20:21:13,920 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 20:21:13,920 INFO L276 IsEmpty]: Start isEmpty. Operand 3944 states and 4955 transitions. [2019-10-13 20:21:13,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2019-10-13 20:21:13,929 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:21:13,930 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-13 20:21:13,930 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:21:13,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:21:13,931 INFO L82 PathProgramCache]: Analyzing trace with hash -863206528, now seen corresponding path program 1 times [2019-10-13 20:21:13,931 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:21:13,931 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583760354] [2019-10-13 20:21:13,931 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:13,931 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:13,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:21:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:21:14,795 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-13 20:21:14,795 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583760354] [2019-10-13 20:21:14,796 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:21:14,796 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:21:14,796 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059945307] [2019-10-13 20:21:14,797 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:21:14,797 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:21:14,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:21:14,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:21:14,798 INFO L87 Difference]: Start difference. First operand 3944 states and 4955 transitions. Second operand 3 states. [2019-10-13 20:21:17,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:21:17,052 INFO L93 Difference]: Finished difference Result 3949 states and 4958 transitions. [2019-10-13 20:21:17,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:21:17,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 274 [2019-10-13 20:21:17,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:21:17,071 INFO L225 Difference]: With dead ends: 3949 [2019-10-13 20:21:17,071 INFO L226 Difference]: Without dead ends: 3946 [2019-10-13 20:21:17,074 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 20:21:17,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3946 states. [2019-10-13 20:21:17,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3946 to 3943. [2019-10-13 20:21:17,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3943 states. [2019-10-13 20:21:17,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3943 states to 3943 states and 4950 transitions. [2019-10-13 20:21:17,249 INFO L78 Accepts]: Start accepts. Automaton has 3943 states and 4950 transitions. Word has length 274 [2019-10-13 20:21:17,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:21:17,250 INFO L462 AbstractCegarLoop]: Abstraction has 3943 states and 4950 transitions. [2019-10-13 20:21:17,250 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:21:17,250 INFO L276 IsEmpty]: Start isEmpty. Operand 3943 states and 4950 transitions. [2019-10-13 20:21:17,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2019-10-13 20:21:17,257 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:21:17,258 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-13 20:21:17,258 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:21:17,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:21:17,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1392884888, now seen corresponding path program 1 times [2019-10-13 20:21:17,259 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:21:17,259 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346667006] [2019-10-13 20:21:17,259 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:17,259 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:17,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:21:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:21:17,556 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-13 20:21:17,556 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346667006] [2019-10-13 20:21:17,557 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:21:17,558 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:21:17,558 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845687495] [2019-10-13 20:21:17,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:21:17,561 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:21:17,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:21:17,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:21:17,562 INFO L87 Difference]: Start difference. First operand 3943 states and 4950 transitions. Second operand 3 states. [2019-10-13 20:21:18,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:21:18,444 INFO L93 Difference]: Finished difference Result 3946 states and 4952 transitions. [2019-10-13 20:21:18,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:21:18,445 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 275 [2019-10-13 20:21:18,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:21:18,470 INFO L225 Difference]: With dead ends: 3946 [2019-10-13 20:21:18,471 INFO L226 Difference]: Without dead ends: 3943 [2019-10-13 20:21:18,474 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 20:21:18,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3943 states. [2019-10-13 20:21:18,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3943 to 3943. [2019-10-13 20:21:18,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3943 states. [2019-10-13 20:21:18,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3943 states to 3943 states and 4942 transitions. [2019-10-13 20:21:18,650 INFO L78 Accepts]: Start accepts. Automaton has 3943 states and 4942 transitions. Word has length 275 [2019-10-13 20:21:18,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:21:18,652 INFO L462 AbstractCegarLoop]: Abstraction has 3943 states and 4942 transitions. [2019-10-13 20:21:18,652 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:21:18,652 INFO L276 IsEmpty]: Start isEmpty. Operand 3943 states and 4942 transitions. [2019-10-13 20:21:18,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2019-10-13 20:21:18,667 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:21:18,668 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-13 20:21:18,668 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:21:18,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:21:18,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1903419065, now seen corresponding path program 1 times [2019-10-13 20:21:18,669 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:21:18,669 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16286992] [2019-10-13 20:21:18,670 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:18,670 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:18,670 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:21:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:21:19,084 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-13 20:21:19,085 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16286992] [2019-10-13 20:21:19,086 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:21:19,086 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 20:21:19,086 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926674735] [2019-10-13 20:21:19,088 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 20:21:19,088 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:21:19,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 20:21:19,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:21:19,090 INFO L87 Difference]: Start difference. First operand 3943 states and 4942 transitions. Second operand 7 states. [2019-10-13 20:21:19,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:21:19,215 INFO L93 Difference]: Finished difference Result 3951 states and 4950 transitions. [2019-10-13 20:21:19,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:21:19,216 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 275 [2019-10-13 20:21:19,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:21:19,217 INFO L225 Difference]: With dead ends: 3951 [2019-10-13 20:21:19,217 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 20:21:19,229 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 20:21:19,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 20:21:19,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 20:21:19,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 20:21:19,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 20:21:19,230 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 275 [2019-10-13 20:21:19,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:21:19,231 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 20:21:19,231 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 20:21:19,231 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 20:21:19,231 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 20:21:19,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 20:21:22,136 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2019-10-13 20:21:22,249 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 23 [2019-10-13 20:21:22,464 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2019-10-13 20:21:22,683 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 23 [2019-10-13 20:21:23,340 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2019-10-13 20:21:23,583 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31