java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 00:55:44,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 00:55:44,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 00:55:44,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 00:55:44,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 00:55:44,640 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 00:55:44,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 00:55:44,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 00:55:44,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 00:55:44,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 00:55:44,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 00:55:44,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 00:55:44,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 00:55:44,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 00:55:44,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 00:55:44,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 00:55:44,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 00:55:44,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 00:55:44,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 00:55:44,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 00:55:44,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 00:55:44,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 00:55:44,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 00:55:44,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 00:55:44,684 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 00:55:44,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 00:55:44,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 00:55:44,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 00:55:44,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 00:55:44,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 00:55:44,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 00:55:44,687 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 00:55:44,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 00:55:44,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 00:55:44,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 00:55:44,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 00:55:44,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 00:55:44,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 00:55:44,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 00:55:44,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 00:55:44,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 00:55:44,694 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 00:55:44,725 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 00:55:44,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 00:55:44,727 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 00:55:44,727 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 00:55:44,727 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 00:55:44,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 00:55:44,727 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 00:55:44,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 00:55:44,728 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 00:55:44,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 00:55:44,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 00:55:44,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 00:55:44,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 00:55:44,729 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 00:55:44,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 00:55:44,730 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 00:55:44,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 00:55:44,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 00:55:44,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 00:55:44,732 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 00:55:44,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 00:55:44,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:55:44,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 00:55:44,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 00:55:44,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 00:55:44,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 00:55:44,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 00:55:44,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 00:55:44,734 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 [2019-10-15 00:55:45,021 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 00:55:45,044 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 00:55:45,047 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 00:55:45,049 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 00:55:45,049 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 00:55:45,050 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2019-10-15 00:55:45,130 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23580f68e/7f857438c3e54e329ffef0a5b26e5380/FLAGd1013ffbf [2019-10-15 00:55:45,997 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 00:55:45,998 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2019-10-15 00:55:46,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23580f68e/7f857438c3e54e329ffef0a5b26e5380/FLAGd1013ffbf [2019-10-15 00:55:46,468 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23580f68e/7f857438c3e54e329ffef0a5b26e5380 [2019-10-15 00:55:46,478 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 00:55:46,479 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 00:55:46,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 00:55:46,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 00:55:46,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 00:55:46,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:55:46" (1/1) ... [2019-10-15 00:55:46,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc63f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:55:46, skipping insertion in model container [2019-10-15 00:55:46,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:55:46" (1/1) ... [2019-10-15 00:55:46,496 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 00:55:46,590 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 00:55:48,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:55:48,126 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 00:55:48,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:55:48,646 INFO L192 MainTranslator]: Completed translation [2019-10-15 00:55:48,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:55:48 WrapperNode [2019-10-15 00:55:48,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 00:55:48,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 00:55:48,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 00:55:48,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 00:55:48,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:55:48" (1/1) ... [2019-10-15 00:55:48,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:55:48" (1/1) ... [2019-10-15 00:55:48,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:55:48" (1/1) ... [2019-10-15 00:55:48,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:55:48" (1/1) ... [2019-10-15 00:55:48,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:55:48" (1/1) ... [2019-10-15 00:55:48,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:55:48" (1/1) ... [2019-10-15 00:55:48,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:55:48" (1/1) ... [2019-10-15 00:55:48,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 00:55:48,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 00:55:48,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 00:55:48,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 00:55:48,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:55:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:55:49,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 00:55:49,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 00:55:49,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-15 00:55:49,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-15 00:55:49,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2019-10-15 00:55:49,019 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-15 00:55:49,020 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-15 00:55:49,020 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2019-10-15 00:55:49,020 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-15 00:55:49,021 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_and_test [2019-10-15 00:55:49,021 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2019-10-15 00:55:49,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-15 00:55:49,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-15 00:55:49,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-15 00:55:49,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-15 00:55:49,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-15 00:55:49,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-15 00:55:49,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-15 00:55:49,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-15 00:55:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-15 00:55:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-10-15 00:55:49,030 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-10-15 00:55:49,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 00:55:49,030 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 00:55:49,030 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-15 00:55:49,031 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2019-10-15 00:55:49,031 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2019-10-15 00:55:49,031 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2019-10-15 00:55:49,031 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2019-10-15 00:55:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-10-15 00:55:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-10-15 00:55:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-15 00:55:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-15 00:55:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_write [2019-10-15 00:55:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_get_drvdata [2019-10-15 00:55:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_set_drvdata [2019-10-15 00:55:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_pause_rx [2019-10-15 00:55:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_continue_rx [2019-10-15 00:55:49,034 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_fasync [2019-10-15 00:55:49,034 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_locate [2019-10-15 00:55:49,034 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_open [2019-10-15 00:55:49,034 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_free [2019-10-15 00:55:49,035 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_release [2019-10-15 00:55:49,035 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_fetch_byte [2019-10-15 00:55:49,035 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_read [2019-10-15 00:55:49,035 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_write [2019-10-15 00:55:49,035 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_poll [2019-10-15 00:55:49,036 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_interrupt [2019-10-15 00:55:49,036 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_connect [2019-10-15 00:55:49,036 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_reconnect [2019-10-15 00:55:49,036 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_hangup [2019-10-15 00:55:49,037 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_disconnect [2019-10-15 00:55:49,037 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_drv_init [2019-10-15 00:55:49,037 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_drv_exit [2019-10-15 00:55:49,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serio_driver_1 [2019-10-15 00:55:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2019-10-15 00:55:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 00:55:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2019-10-15 00:55:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2019-10-15 00:55:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-15 00:55:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2019-10-15 00:55:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_9 [2019-10-15 00:55:49,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_10 [2019-10-15 00:55:49,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-15 00:55:49,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_12 [2019-10-15 00:55:49,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2019-10-15 00:55:49,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_14 [2019-10-15 00:55:49,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2019-10-15 00:55:49,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_16 [2019-10-15 00:55:49,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_17 [2019-10-15 00:55:49,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_18 [2019-10-15 00:55:49,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_19 [2019-10-15 00:55:49,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_deregister_20 [2019-10-15 00:55:49,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_21 [2019-10-15 00:55:49,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_22 [2019-10-15 00:55:49,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___serio_register_driver_23 [2019-10-15 00:55:49,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serio_unregister_driver_24 [2019-10-15 00:55:49,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-15 00:55:49,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2019-10-15 00:55:49,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-15 00:55:49,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-15 00:55:49,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-15 00:55:49,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-15 00:55:49,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-15 00:55:49,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-15 00:55:49,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-15 00:55:49,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-15 00:55:49,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-15 00:55:49,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-15 00:55:49,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-15 00:55:49,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-15 00:55:49,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-15 00:55:49,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-15 00:55:49,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-15 00:55:49,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-15 00:55:49,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-15 00:55:49,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-15 00:55:49,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-15 00:55:49,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-15 00:55:49,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-15 00:55:49,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-15 00:55:49,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2019-10-15 00:55:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2019-10-15 00:55:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2019-10-15 00:55:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2019-10-15 00:55:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-15 00:55:49,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-15 00:55:49,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-15 00:55:49,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-15 00:55:49,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-15 00:55:49,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-15 00:55:49,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-15 00:55:49,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2019-10-15 00:55:49,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-15 00:55:49,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-15 00:55:49,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-15 00:55:49,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2019-10-15 00:55:49,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_serio_raw_mutex [2019-10-15 00:55:49,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_serio_raw_mutex [2019-10-15 00:55:49,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_serio_raw_mutex [2019-10-15 00:55:49,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_serio_raw_mutex [2019-10-15 00:55:49,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_serio_raw_mutex [2019-10-15 00:55:49,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_serio_raw_mutex [2019-10-15 00:55:49,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_serio_raw_mutex [2019-10-15 00:55:49,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_serio_raw_mutex [2019-10-15 00:55:49,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_serio_raw_mutex [2019-10-15 00:55:49,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_serio_raw_mutex [2019-10-15 00:55:49,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 00:55:49,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-10-15 00:55:49,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-15 00:55:49,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-15 00:55:49,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2019-10-15 00:55:49,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-10-15 00:55:49,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2019-10-15 00:55:49,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __serio_register_driver [2019-10-15 00:55:49,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-15 00:55:49,067 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-15 00:55:49,071 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-10-15 00:55:49,071 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-10-15 00:55:49,072 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-15 00:55:49,073 INFO L138 BoogieDeclarations]: Found implementation of procedure fasync_helper [2019-10-15 00:55:49,073 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-15 00:55:49,073 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device [2019-10-15 00:55:49,074 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2019-10-15 00:55:49,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 00:55:49,083 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-15 00:55:49,083 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2019-10-15 00:55:49,083 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2019-10-15 00:55:49,084 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-15 00:55:49,084 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-10-15 00:55:49,084 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_killable [2019-10-15 00:55:49,084 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-15 00:55:49,084 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-15 00:55:49,085 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2019-10-15 00:55:49,085 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2019-10-15 00:55:49,086 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2019-10-15 00:55:49,086 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-15 00:55:49,087 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_close [2019-10-15 00:55:49,087 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_open [2019-10-15 00:55:49,087 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_unregister_driver [2019-10-15 00:55:49,087 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-15 00:55:49,087 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 00:55:49,088 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 00:55:49,088 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-15 00:55:49,088 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-15 00:55:49,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 00:55:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-15 00:55:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-10-15 00:55:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2019-10-15 00:55:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-10-15 00:55:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-15 00:55:49,090 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-15 00:55:49,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 00:55:49,090 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-15 00:55:49,090 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-15 00:55:49,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 00:55:49,091 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2019-10-15 00:55:49,091 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-15 00:55:49,091 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2019-10-15 00:55:49,091 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-15 00:55:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-15 00:55:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2019-10-15 00:55:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-15 00:55:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 00:55:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_and_test [2019-10-15 00:55:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2019-10-15 00:55:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-15 00:55:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_10 [2019-10-15 00:55:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-15 00:55:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2019-10-15 00:55:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-15 00:55:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-15 00:55:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2019-10-15 00:55:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2019-10-15 00:55:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_17 [2019-10-15 00:55:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_22 [2019-10-15 00:55:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 00:55:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 00:55:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 00:55:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 00:55:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 00:55:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 00:55:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-15 00:55:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 00:55:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-15 00:55:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-15 00:55:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-15 00:55:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-15 00:55:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-15 00:55:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-15 00:55:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-15 00:55:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-15 00:55:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-15 00:55:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-10-15 00:55:49,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_12 [2019-10-15 00:55:49,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_14 [2019-10-15 00:55:49,099 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_killable [2019-10-15 00:55:49,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_16 [2019-10-15 00:55:49,099 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-15 00:55:49,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2019-10-15 00:55:49,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2019-10-15 00:55:49,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_9 [2019-10-15 00:55:49,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_21 [2019-10-15 00:55:49,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-15 00:55:49,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-15 00:55:49,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-15 00:55:49,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-15 00:55:49,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-15 00:55:49,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-15 00:55:49,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-15 00:55:49,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2019-10-15 00:55:49,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_serio_raw_mutex [2019-10-15 00:55:49,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_serio_raw_mutex [2019-10-15 00:55:49,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_serio_raw_mutex [2019-10-15 00:55:49,103 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-10-15 00:55:49,103 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-10-15 00:55:49,103 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-10-15 00:55:49,103 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-10-15 00:55:49,104 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-15 00:55:49,104 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-15 00:55:49,104 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2019-10-15 00:55:49,104 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-15 00:55:49,104 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-15 00:55:49,105 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 00:55:49,105 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 00:55:49,105 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 00:55:49,105 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-15 00:55:49,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serio_driver_1 [2019-10-15 00:55:49,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2019-10-15 00:55:49,106 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2019-10-15 00:55:49,106 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2019-10-15 00:55:49,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 00:55:49,106 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2019-10-15 00:55:49,107 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-15 00:55:49,107 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2019-10-15 00:55:49,107 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-10-15 00:55:49,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 00:55:49,108 INFO L130 BoogieDeclarations]: Found specification of procedure fasync_helper [2019-10-15 00:55:49,108 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2019-10-15 00:55:49,108 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-15 00:55:49,108 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-10-15 00:55:49,108 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-15 00:55:49,109 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-15 00:55:49,110 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-15 00:55:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure get_device [2019-10-15 00:55:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2019-10-15 00:55:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-15 00:55:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-15 00:55:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure serio_open [2019-10-15 00:55:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure serio_close [2019-10-15 00:55:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure __serio_register_driver [2019-10-15 00:55:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___serio_register_driver_23 [2019-10-15 00:55:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure serio_unregister_driver [2019-10-15 00:55:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serio_unregister_driver_24 [2019-10-15 00:55:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure serio_write [2019-10-15 00:55:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2019-10-15 00:55:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure serio_get_drvdata [2019-10-15 00:55:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure serio_set_drvdata [2019-10-15 00:55:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure serio_pause_rx [2019-10-15 00:55:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure serio_continue_rx [2019-10-15 00:55:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2019-10-15 00:55:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_18 [2019-10-15 00:55:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_19 [2019-10-15 00:55:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2019-10-15 00:55:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_deregister_20 [2019-10-15 00:55:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_fasync [2019-10-15 00:55:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_locate [2019-10-15 00:55:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_open [2019-10-15 00:55:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_free [2019-10-15 00:55:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_release [2019-10-15 00:55:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_fetch_byte [2019-10-15 00:55:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_read [2019-10-15 00:55:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 00:55:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_write [2019-10-15 00:55:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_poll [2019-10-15 00:55:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_interrupt [2019-10-15 00:55:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_connect [2019-10-15 00:55:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_reconnect [2019-10-15 00:55:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_hangup [2019-10-15 00:55:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_disconnect [2019-10-15 00:55:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_drv_init [2019-10-15 00:55:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_drv_exit [2019-10-15 00:55:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 00:55:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 00:55:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 00:55:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-15 00:55:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2019-10-15 00:55:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-15 00:55:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-15 00:55:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-15 00:55:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-15 00:55:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-15 00:55:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-15 00:55:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-15 00:55:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-15 00:55:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-15 00:55:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-15 00:55:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-15 00:55:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-15 00:55:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-15 00:55:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-15 00:55:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-15 00:55:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-15 00:55:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-15 00:55:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-15 00:55:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2019-10-15 00:55:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2019-10-15 00:55:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2019-10-15 00:55:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2019-10-15 00:55:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-15 00:55:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-15 00:55:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-15 00:55:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-15 00:55:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2019-10-15 00:55:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-15 00:55:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-15 00:55:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-15 00:55:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_serio_raw_mutex [2019-10-15 00:55:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_serio_raw_mutex [2019-10-15 00:55:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_serio_raw_mutex [2019-10-15 00:55:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_serio_raw_mutex [2019-10-15 00:55:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_serio_raw_mutex [2019-10-15 00:55:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_serio_raw_mutex [2019-10-15 00:55:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_serio_raw_mutex [2019-10-15 00:55:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 00:55:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-15 00:55:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 00:55:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 00:55:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 00:55:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 00:55:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 00:55:50,462 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-15 00:55:52,538 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 00:55:52,539 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 00:55:52,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:55:52 BoogieIcfgContainer [2019-10-15 00:55:52,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 00:55:52,543 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 00:55:52,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 00:55:52,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 00:55:52,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:55:46" (1/3) ... [2019-10-15 00:55:52,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ddcc32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:55:52, skipping insertion in model container [2019-10-15 00:55:52,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:55:48" (2/3) ... [2019-10-15 00:55:52,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ddcc32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:55:52, skipping insertion in model container [2019-10-15 00:55:52,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:55:52" (3/3) ... [2019-10-15 00:55:52,550 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2019-10-15 00:55:52,561 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 00:55:52,572 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 00:55:52,584 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 00:55:52,618 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 00:55:52,618 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 00:55:52,618 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 00:55:52,618 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 00:55:52,619 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 00:55:52,619 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 00:55:52,619 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 00:55:52,619 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 00:55:52,660 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states. [2019-10-15 00:55:52,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-15 00:55:52,679 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:52,681 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:52,683 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:52,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:52,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1729461888, now seen corresponding path program 1 times [2019-10-15 00:55:52,701 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:52,702 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113542506] [2019-10-15 00:55:52,702 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:52,702 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:52,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:53,650 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-10-15 00:55:53,650 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113542506] [2019-10-15 00:55:53,651 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:53,652 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:55:53,652 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822385320] [2019-10-15 00:55:53,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:55:53,659 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:53,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:55:53,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:53,678 INFO L87 Difference]: Start difference. First operand 954 states. Second operand 3 states. [2019-10-15 00:55:54,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:54,031 INFO L93 Difference]: Finished difference Result 1823 states and 2289 transitions. [2019-10-15 00:55:54,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:55:54,033 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-10-15 00:55:54,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:54,080 INFO L225 Difference]: With dead ends: 1823 [2019-10-15 00:55:54,080 INFO L226 Difference]: Without dead ends: 1097 [2019-10-15 00:55:54,097 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:54,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2019-10-15 00:55:54,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1058. [2019-10-15 00:55:54,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1058 states. [2019-10-15 00:55:54,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1286 transitions. [2019-10-15 00:55:54,266 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1286 transitions. Word has length 178 [2019-10-15 00:55:54,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:54,268 INFO L462 AbstractCegarLoop]: Abstraction has 1058 states and 1286 transitions. [2019-10-15 00:55:54,268 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:55:54,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1286 transitions. [2019-10-15 00:55:54,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-15 00:55:54,274 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:54,274 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:54,274 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:54,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:54,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1156488474, now seen corresponding path program 1 times [2019-10-15 00:55:54,275 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:54,275 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618520690] [2019-10-15 00:55:54,276 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:54,276 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:54,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:54,541 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-10-15 00:55:54,542 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618520690] [2019-10-15 00:55:54,542 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:54,542 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:55:54,542 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123096364] [2019-10-15 00:55:54,545 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:55:54,545 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:54,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:55:54,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:54,546 INFO L87 Difference]: Start difference. First operand 1058 states and 1286 transitions. Second operand 3 states. [2019-10-15 00:55:54,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:54,747 INFO L93 Difference]: Finished difference Result 3012 states and 3659 transitions. [2019-10-15 00:55:54,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:55:54,754 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-15 00:55:54,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:54,785 INFO L225 Difference]: With dead ends: 3012 [2019-10-15 00:55:54,785 INFO L226 Difference]: Without dead ends: 2000 [2019-10-15 00:55:54,790 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:54,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2000 states. [2019-10-15 00:55:54,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2000 to 1994. [2019-10-15 00:55:54,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1994 states. [2019-10-15 00:55:54,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2422 transitions. [2019-10-15 00:55:54,978 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2422 transitions. Word has length 180 [2019-10-15 00:55:54,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:54,979 INFO L462 AbstractCegarLoop]: Abstraction has 1994 states and 2422 transitions. [2019-10-15 00:55:54,979 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:55:54,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2422 transitions. [2019-10-15 00:55:54,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-15 00:55:54,982 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:54,982 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:54,983 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:54,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:54,983 INFO L82 PathProgramCache]: Analyzing trace with hash 872417033, now seen corresponding path program 1 times [2019-10-15 00:55:54,983 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:54,983 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594693933] [2019-10-15 00:55:54,984 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:54,984 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:54,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:55,163 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-10-15 00:55:55,163 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594693933] [2019-10-15 00:55:55,164 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:55,164 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:55:55,164 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745463433] [2019-10-15 00:55:55,165 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:55:55,165 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:55,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:55:55,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:55,166 INFO L87 Difference]: Start difference. First operand 1994 states and 2422 transitions. Second operand 3 states. [2019-10-15 00:55:55,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:55,267 INFO L93 Difference]: Finished difference Result 2016 states and 2448 transitions. [2019-10-15 00:55:55,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:55:55,268 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2019-10-15 00:55:55,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:55,282 INFO L225 Difference]: With dead ends: 2016 [2019-10-15 00:55:55,282 INFO L226 Difference]: Without dead ends: 2005 [2019-10-15 00:55:55,284 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:55,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2005 states. [2019-10-15 00:55:55,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2005 to 1994. [2019-10-15 00:55:55,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1994 states. [2019-10-15 00:55:55,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2420 transitions. [2019-10-15 00:55:55,382 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2420 transitions. Word has length 187 [2019-10-15 00:55:55,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:55,383 INFO L462 AbstractCegarLoop]: Abstraction has 1994 states and 2420 transitions. [2019-10-15 00:55:55,383 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:55:55,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2420 transitions. [2019-10-15 00:55:55,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-15 00:55:55,386 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:55,387 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:55,387 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:55,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:55,387 INFO L82 PathProgramCache]: Analyzing trace with hash 929675335, now seen corresponding path program 1 times [2019-10-15 00:55:55,388 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:55,388 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422807035] [2019-10-15 00:55:55,388 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:55,388 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:55,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:55,685 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-10-15 00:55:55,685 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422807035] [2019-10-15 00:55:55,685 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:55,685 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:55:55,686 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473202032] [2019-10-15 00:55:55,686 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:55:55,687 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:55,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:55:55,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:55,687 INFO L87 Difference]: Start difference. First operand 1994 states and 2420 transitions. Second operand 3 states. [2019-10-15 00:55:55,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:55,753 INFO L93 Difference]: Finished difference Result 1996 states and 2421 transitions. [2019-10-15 00:55:55,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:55:55,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2019-10-15 00:55:55,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:55,766 INFO L225 Difference]: With dead ends: 1996 [2019-10-15 00:55:55,766 INFO L226 Difference]: Without dead ends: 1993 [2019-10-15 00:55:55,768 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:55,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2019-10-15 00:55:55,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1993. [2019-10-15 00:55:55,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1993 states. [2019-10-15 00:55:55,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 2418 transitions. [2019-10-15 00:55:55,871 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 2418 transitions. Word has length 187 [2019-10-15 00:55:55,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:55,872 INFO L462 AbstractCegarLoop]: Abstraction has 1993 states and 2418 transitions. [2019-10-15 00:55:55,872 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:55:55,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 2418 transitions. [2019-10-15 00:55:55,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-15 00:55:55,875 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:55,875 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:55,875 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:55,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:55,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1245248025, now seen corresponding path program 1 times [2019-10-15 00:55:55,876 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:55,876 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682101913] [2019-10-15 00:55:55,876 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:55,877 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:55,877 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:56,084 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-10-15 00:55:56,084 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682101913] [2019-10-15 00:55:56,084 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:56,085 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:55:56,085 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47582426] [2019-10-15 00:55:56,085 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:55:56,086 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:56,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:55:56,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:56,086 INFO L87 Difference]: Start difference. First operand 1993 states and 2418 transitions. Second operand 3 states. [2019-10-15 00:55:56,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:56,240 INFO L93 Difference]: Finished difference Result 1995 states and 2419 transitions. [2019-10-15 00:55:56,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:55:56,240 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2019-10-15 00:55:56,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:56,253 INFO L225 Difference]: With dead ends: 1995 [2019-10-15 00:55:56,253 INFO L226 Difference]: Without dead ends: 1992 [2019-10-15 00:55:56,254 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:56,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1992 states. [2019-10-15 00:55:56,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1992 to 1992. [2019-10-15 00:55:56,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1992 states. [2019-10-15 00:55:56,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1992 states to 1992 states and 2416 transitions. [2019-10-15 00:55:56,355 INFO L78 Accepts]: Start accepts. Automaton has 1992 states and 2416 transitions. Word has length 188 [2019-10-15 00:55:56,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:56,360 INFO L462 AbstractCegarLoop]: Abstraction has 1992 states and 2416 transitions. [2019-10-15 00:55:56,360 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:55:56,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1992 states and 2416 transitions. [2019-10-15 00:55:56,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-15 00:55:56,365 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:56,365 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:56,365 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:56,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:56,366 INFO L82 PathProgramCache]: Analyzing trace with hash 51609418, now seen corresponding path program 1 times [2019-10-15 00:55:56,367 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:56,367 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047528373] [2019-10-15 00:55:56,367 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:56,367 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:56,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:56,561 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-10-15 00:55:56,562 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047528373] [2019-10-15 00:55:56,562 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:56,562 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:55:56,563 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131104729] [2019-10-15 00:55:56,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:55:56,563 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:56,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:55:56,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:56,564 INFO L87 Difference]: Start difference. First operand 1992 states and 2416 transitions. Second operand 3 states. [2019-10-15 00:55:56,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:56,638 INFO L93 Difference]: Finished difference Result 1994 states and 2417 transitions. [2019-10-15 00:55:56,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:55:56,638 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-10-15 00:55:56,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:56,650 INFO L225 Difference]: With dead ends: 1994 [2019-10-15 00:55:56,650 INFO L226 Difference]: Without dead ends: 1991 [2019-10-15 00:55:56,651 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:56,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2019-10-15 00:55:56,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1991. [2019-10-15 00:55:56,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1991 states. [2019-10-15 00:55:56,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 2414 transitions. [2019-10-15 00:55:56,757 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 2414 transitions. Word has length 189 [2019-10-15 00:55:56,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:56,758 INFO L462 AbstractCegarLoop]: Abstraction has 1991 states and 2414 transitions. [2019-10-15 00:55:56,758 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:55:56,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 2414 transitions. [2019-10-15 00:55:56,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-15 00:55:56,761 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:56,762 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:56,762 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:56,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:56,762 INFO L82 PathProgramCache]: Analyzing trace with hash 611780794, now seen corresponding path program 1 times [2019-10-15 00:55:56,763 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:56,763 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359664319] [2019-10-15 00:55:56,763 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:56,763 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:56,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:57,092 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-10-15 00:55:57,093 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359664319] [2019-10-15 00:55:57,093 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:57,093 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:55:57,094 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893445157] [2019-10-15 00:55:57,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:55:57,095 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:57,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:55:57,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:57,095 INFO L87 Difference]: Start difference. First operand 1991 states and 2414 transitions. Second operand 3 states. [2019-10-15 00:55:57,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:57,293 INFO L93 Difference]: Finished difference Result 5155 states and 6235 transitions. [2019-10-15 00:55:57,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:55:57,294 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2019-10-15 00:55:57,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:57,314 INFO L225 Difference]: With dead ends: 5155 [2019-10-15 00:55:57,314 INFO L226 Difference]: Without dead ends: 3218 [2019-10-15 00:55:57,321 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:57,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2019-10-15 00:55:57,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 3177. [2019-10-15 00:55:57,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3177 states. [2019-10-15 00:55:57,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3177 states to 3177 states and 3840 transitions. [2019-10-15 00:55:57,525 INFO L78 Accepts]: Start accepts. Automaton has 3177 states and 3840 transitions. Word has length 194 [2019-10-15 00:55:57,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:57,526 INFO L462 AbstractCegarLoop]: Abstraction has 3177 states and 3840 transitions. [2019-10-15 00:55:57,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:55:57,526 INFO L276 IsEmpty]: Start isEmpty. Operand 3177 states and 3840 transitions. [2019-10-15 00:55:57,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-15 00:55:57,530 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:57,530 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:55:57,531 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:57,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:57,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1599489354, now seen corresponding path program 1 times [2019-10-15 00:55:57,531 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:57,532 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006055420] [2019-10-15 00:55:57,532 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:57,532 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:57,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:57,795 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-10-15 00:55:57,796 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006055420] [2019-10-15 00:55:57,796 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:57,797 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:55:57,797 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987985723] [2019-10-15 00:55:57,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:55:57,798 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:57,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:55:57,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:57,799 INFO L87 Difference]: Start difference. First operand 3177 states and 3840 transitions. Second operand 3 states. [2019-10-15 00:55:58,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:58,211 INFO L93 Difference]: Finished difference Result 8789 states and 10851 transitions. [2019-10-15 00:55:58,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:55:58,212 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-15 00:55:58,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:58,246 INFO L225 Difference]: With dead ends: 8789 [2019-10-15 00:55:58,247 INFO L226 Difference]: Without dead ends: 5648 [2019-10-15 00:55:58,260 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:58,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5648 states. [2019-10-15 00:55:58,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5648 to 5593. [2019-10-15 00:55:58,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5593 states. [2019-10-15 00:55:58,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5593 states to 5593 states and 6913 transitions. [2019-10-15 00:55:58,545 INFO L78 Accepts]: Start accepts. Automaton has 5593 states and 6913 transitions. Word has length 190 [2019-10-15 00:55:58,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:58,546 INFO L462 AbstractCegarLoop]: Abstraction has 5593 states and 6913 transitions. [2019-10-15 00:55:58,546 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:55:58,546 INFO L276 IsEmpty]: Start isEmpty. Operand 5593 states and 6913 transitions. [2019-10-15 00:55:58,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2019-10-15 00:55:58,550 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:58,551 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 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] [2019-10-15 00:55:58,551 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:58,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:58,551 INFO L82 PathProgramCache]: Analyzing trace with hash -866239076, now seen corresponding path program 1 times [2019-10-15 00:55:58,552 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:58,552 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990040395] [2019-10-15 00:55:58,552 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:58,552 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:58,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:55:58,766 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2019-10-15 00:55:58,766 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990040395] [2019-10-15 00:55:58,766 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:55:58,767 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:55:58,767 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352093155] [2019-10-15 00:55:58,768 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:55:58,768 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:55:58,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:55:58,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:58,768 INFO L87 Difference]: Start difference. First operand 5593 states and 6913 transitions. Second operand 3 states. [2019-10-15 00:55:59,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:55:59,258 INFO L93 Difference]: Finished difference Result 13327 states and 16514 transitions. [2019-10-15 00:55:59,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:55:59,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 261 [2019-10-15 00:55:59,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:55:59,302 INFO L225 Difference]: With dead ends: 13327 [2019-10-15 00:55:59,303 INFO L226 Difference]: Without dead ends: 7788 [2019-10-15 00:55:59,322 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:55:59,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7788 states. [2019-10-15 00:55:59,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7788 to 7715. [2019-10-15 00:55:59,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7715 states. [2019-10-15 00:55:59,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7715 states to 7715 states and 9549 transitions. [2019-10-15 00:55:59,694 INFO L78 Accepts]: Start accepts. Automaton has 7715 states and 9549 transitions. Word has length 261 [2019-10-15 00:55:59,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:55:59,695 INFO L462 AbstractCegarLoop]: Abstraction has 7715 states and 9549 transitions. [2019-10-15 00:55:59,695 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:55:59,695 INFO L276 IsEmpty]: Start isEmpty. Operand 7715 states and 9549 transitions. [2019-10-15 00:55:59,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2019-10-15 00:55:59,701 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:55:59,702 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 3, 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] [2019-10-15 00:55:59,702 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:55:59,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:55:59,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1115521749, now seen corresponding path program 1 times [2019-10-15 00:55:59,703 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:55:59,703 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337928754] [2019-10-15 00:55:59,703 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:59,703 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:55:59,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:55:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:56:00,009 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2019-10-15 00:56:00,010 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337928754] [2019-10-15 00:56:00,010 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:56:00,010 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:56:00,010 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952365723] [2019-10-15 00:56:00,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:56:00,011 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:56:00,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:56:00,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:56:00,012 INFO L87 Difference]: Start difference. First operand 7715 states and 9549 transitions. Second operand 3 states. [2019-10-15 00:56:00,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:56:00,478 INFO L93 Difference]: Finished difference Result 15378 states and 19040 transitions. [2019-10-15 00:56:00,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:56:00,479 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 301 [2019-10-15 00:56:00,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:56:00,522 INFO L225 Difference]: With dead ends: 15378 [2019-10-15 00:56:00,522 INFO L226 Difference]: Without dead ends: 7717 [2019-10-15 00:56:00,561 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:56:00,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7717 states. [2019-10-15 00:56:00,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7717 to 7472. [2019-10-15 00:56:00,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7472 states. [2019-10-15 00:56:01,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7472 states to 7472 states and 9111 transitions. [2019-10-15 00:56:01,013 INFO L78 Accepts]: Start accepts. Automaton has 7472 states and 9111 transitions. Word has length 301 [2019-10-15 00:56:01,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:56:01,014 INFO L462 AbstractCegarLoop]: Abstraction has 7472 states and 9111 transitions. [2019-10-15 00:56:01,014 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:56:01,014 INFO L276 IsEmpty]: Start isEmpty. Operand 7472 states and 9111 transitions. [2019-10-15 00:56:01,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2019-10-15 00:56:01,027 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:56:01,027 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 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] [2019-10-15 00:56:01,027 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:56:01,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:56:01,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1796302967, now seen corresponding path program 1 times [2019-10-15 00:56:01,029 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:56:01,029 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230927696] [2019-10-15 00:56:01,029 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:56:01,029 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:56:01,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:56:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:56:02,044 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2019-10-15 00:56:02,045 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230927696] [2019-10-15 00:56:02,045 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:56:02,045 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:56:02,046 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521542428] [2019-10-15 00:56:02,047 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:56:02,047 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:56:02,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:56:02,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:56:02,048 INFO L87 Difference]: Start difference. First operand 7472 states and 9111 transitions. Second operand 3 states. [2019-10-15 00:56:02,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:56:02,356 INFO L93 Difference]: Finished difference Result 14906 states and 18225 transitions. [2019-10-15 00:56:02,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:56:02,357 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 313 [2019-10-15 00:56:02,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:56:02,414 INFO L225 Difference]: With dead ends: 14906 [2019-10-15 00:56:02,414 INFO L226 Difference]: Without dead ends: 7488 [2019-10-15 00:56:02,448 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:56:02,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7488 states. [2019-10-15 00:56:02,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7488 to 7472. [2019-10-15 00:56:02,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7472 states. [2019-10-15 00:56:02,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7472 states to 7472 states and 9063 transitions. [2019-10-15 00:56:02,864 INFO L78 Accepts]: Start accepts. Automaton has 7472 states and 9063 transitions. Word has length 313 [2019-10-15 00:56:02,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:56:02,865 INFO L462 AbstractCegarLoop]: Abstraction has 7472 states and 9063 transitions. [2019-10-15 00:56:02,865 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:56:02,865 INFO L276 IsEmpty]: Start isEmpty. Operand 7472 states and 9063 transitions. [2019-10-15 00:56:02,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2019-10-15 00:56:02,872 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:56:02,872 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 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] [2019-10-15 00:56:02,872 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:56:02,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:56:02,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1764649778, now seen corresponding path program 1 times [2019-10-15 00:56:02,874 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:56:02,878 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052734411] [2019-10-15 00:56:02,878 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:56:02,879 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:56:02,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:56:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:56:03,268 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2019-10-15 00:56:03,268 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052734411] [2019-10-15 00:56:03,269 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:56:03,269 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 00:56:03,269 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722349675] [2019-10-15 00:56:03,270 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 00:56:03,270 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:56:03,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 00:56:03,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:56:03,271 INFO L87 Difference]: Start difference. First operand 7472 states and 9063 transitions. Second operand 7 states. [2019-10-15 00:56:03,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:56:03,592 INFO L93 Difference]: Finished difference Result 7515 states and 9117 transitions. [2019-10-15 00:56:03,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 00:56:03,593 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 315 [2019-10-15 00:56:03,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:56:03,632 INFO L225 Difference]: With dead ends: 7515 [2019-10-15 00:56:03,633 INFO L226 Difference]: Without dead ends: 7480 [2019-10-15 00:56:03,639 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:56:03,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7480 states. [2019-10-15 00:56:04,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7480 to 7470. [2019-10-15 00:56:04,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7470 states. [2019-10-15 00:56:04,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7470 states to 7470 states and 9063 transitions. [2019-10-15 00:56:04,104 INFO L78 Accepts]: Start accepts. Automaton has 7470 states and 9063 transitions. Word has length 315 [2019-10-15 00:56:04,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:56:04,105 INFO L462 AbstractCegarLoop]: Abstraction has 7470 states and 9063 transitions. [2019-10-15 00:56:04,105 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 00:56:04,105 INFO L276 IsEmpty]: Start isEmpty. Operand 7470 states and 9063 transitions. [2019-10-15 00:56:04,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2019-10-15 00:56:04,114 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:56:04,115 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:56:04,115 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:56:04,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:56:04,116 INFO L82 PathProgramCache]: Analyzing trace with hash -359928462, now seen corresponding path program 1 times [2019-10-15 00:56:04,116 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:56:04,116 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407148186] [2019-10-15 00:56:04,116 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:56:04,116 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:56:04,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:56:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:56:04,494 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2019-10-15 00:56:04,494 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407148186] [2019-10-15 00:56:04,494 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:56:04,494 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 00:56:04,495 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145940847] [2019-10-15 00:56:04,495 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 00:56:04,496 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:56:04,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 00:56:04,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:56:04,497 INFO L87 Difference]: Start difference. First operand 7470 states and 9063 transitions. Second operand 7 states. [2019-10-15 00:56:04,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:56:04,825 INFO L93 Difference]: Finished difference Result 14876 states and 18061 transitions. [2019-10-15 00:56:04,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 00:56:04,827 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 364 [2019-10-15 00:56:04,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:56:04,858 INFO L225 Difference]: With dead ends: 14876 [2019-10-15 00:56:04,858 INFO L226 Difference]: Without dead ends: 7460 [2019-10-15 00:56:04,882 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-15 00:56:04,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7460 states. [2019-10-15 00:56:05,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7460 to 7456. [2019-10-15 00:56:05,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7456 states. [2019-10-15 00:56:05,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7456 states to 7456 states and 9041 transitions. [2019-10-15 00:56:05,487 INFO L78 Accepts]: Start accepts. Automaton has 7456 states and 9041 transitions. Word has length 364 [2019-10-15 00:56:05,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:56:05,488 INFO L462 AbstractCegarLoop]: Abstraction has 7456 states and 9041 transitions. [2019-10-15 00:56:05,488 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 00:56:05,489 INFO L276 IsEmpty]: Start isEmpty. Operand 7456 states and 9041 transitions. [2019-10-15 00:56:05,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2019-10-15 00:56:05,505 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:56:05,505 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:56:05,506 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:56:05,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:56:05,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1450880785, now seen corresponding path program 1 times [2019-10-15 00:56:05,506 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:56:05,507 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224755302] [2019-10-15 00:56:05,507 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:56:05,507 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:56:05,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:56:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:56:05,853 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2019-10-15 00:56:05,854 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224755302] [2019-10-15 00:56:05,854 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:56:05,855 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:56:05,855 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228433538] [2019-10-15 00:56:05,856 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:56:05,856 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:56:05,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:56:05,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:56:05,857 INFO L87 Difference]: Start difference. First operand 7456 states and 9041 transitions. Second operand 3 states. [2019-10-15 00:56:06,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:56:06,331 INFO L93 Difference]: Finished difference Result 17650 states and 21360 transitions. [2019-10-15 00:56:06,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:56:06,333 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 405 [2019-10-15 00:56:06,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:56:06,371 INFO L225 Difference]: With dead ends: 17650 [2019-10-15 00:56:06,371 INFO L226 Difference]: Without dead ends: 10248 [2019-10-15 00:56:06,396 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:56:06,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10248 states. [2019-10-15 00:56:06,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10248 to 9734. [2019-10-15 00:56:06,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9734 states. [2019-10-15 00:56:06,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9734 states to 9734 states and 11681 transitions. [2019-10-15 00:56:06,810 INFO L78 Accepts]: Start accepts. Automaton has 9734 states and 11681 transitions. Word has length 405 [2019-10-15 00:56:06,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:56:06,811 INFO L462 AbstractCegarLoop]: Abstraction has 9734 states and 11681 transitions. [2019-10-15 00:56:06,811 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:56:06,811 INFO L276 IsEmpty]: Start isEmpty. Operand 9734 states and 11681 transitions. [2019-10-15 00:56:06,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2019-10-15 00:56:06,828 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:56:06,829 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:56:06,829 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:56:06,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:56:06,829 INFO L82 PathProgramCache]: Analyzing trace with hash -729698287, now seen corresponding path program 1 times [2019-10-15 00:56:06,829 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:56:06,830 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935202305] [2019-10-15 00:56:06,830 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:56:06,830 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:56:06,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:56:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:56:07,484 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2019-10-15 00:56:07,484 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935202305] [2019-10-15 00:56:07,485 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:56:07,485 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 00:56:07,485 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019066016] [2019-10-15 00:56:07,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 00:56:07,486 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:56:07,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 00:56:07,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:56:07,487 INFO L87 Difference]: Start difference. First operand 9734 states and 11681 transitions. Second operand 7 states. [2019-10-15 00:56:07,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:56:07,766 INFO L93 Difference]: Finished difference Result 9805 states and 11757 transitions. [2019-10-15 00:56:07,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 00:56:07,767 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 404 [2019-10-15 00:56:07,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:56:07,809 INFO L225 Difference]: With dead ends: 9805 [2019-10-15 00:56:07,809 INFO L226 Difference]: Without dead ends: 9642 [2019-10-15 00:56:07,818 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:56:07,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9642 states. [2019-10-15 00:56:08,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9642 to 9594. [2019-10-15 00:56:08,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9594 states. [2019-10-15 00:56:08,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9594 states to 9594 states and 11480 transitions. [2019-10-15 00:56:08,184 INFO L78 Accepts]: Start accepts. Automaton has 9594 states and 11480 transitions. Word has length 404 [2019-10-15 00:56:08,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:56:08,185 INFO L462 AbstractCegarLoop]: Abstraction has 9594 states and 11480 transitions. [2019-10-15 00:56:08,186 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 00:56:08,186 INFO L276 IsEmpty]: Start isEmpty. Operand 9594 states and 11480 transitions. [2019-10-15 00:56:08,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2019-10-15 00:56:08,204 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:56:08,205 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:56:08,205 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:56:08,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:56:08,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1951491597, now seen corresponding path program 1 times [2019-10-15 00:56:08,206 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:56:08,206 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860598122] [2019-10-15 00:56:08,206 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:56:08,206 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:56:08,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:56:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:56:08,797 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2019-10-15 00:56:08,797 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860598122] [2019-10-15 00:56:08,802 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:56:08,802 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 00:56:08,802 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837716078] [2019-10-15 00:56:08,804 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 00:56:08,804 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:56:08,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 00:56:08,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:56:08,805 INFO L87 Difference]: Start difference. First operand 9594 states and 11480 transitions. Second operand 7 states. [2019-10-15 00:56:09,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:56:09,243 INFO L93 Difference]: Finished difference Result 9696 states and 11583 transitions. [2019-10-15 00:56:09,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 00:56:09,243 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 421 [2019-10-15 00:56:09,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:56:09,280 INFO L225 Difference]: With dead ends: 9696 [2019-10-15 00:56:09,280 INFO L226 Difference]: Without dead ends: 9296 [2019-10-15 00:56:09,287 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:56:09,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9296 states. [2019-10-15 00:56:09,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9296 to 9272. [2019-10-15 00:56:09,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9272 states. [2019-10-15 00:56:09,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9272 states to 9272 states and 11078 transitions. [2019-10-15 00:56:09,628 INFO L78 Accepts]: Start accepts. Automaton has 9272 states and 11078 transitions. Word has length 421 [2019-10-15 00:56:09,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:56:09,629 INFO L462 AbstractCegarLoop]: Abstraction has 9272 states and 11078 transitions. [2019-10-15 00:56:09,629 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 00:56:09,629 INFO L276 IsEmpty]: Start isEmpty. Operand 9272 states and 11078 transitions. [2019-10-15 00:56:09,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2019-10-15 00:56:09,655 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:56:09,656 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:56:09,656 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:56:09,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:56:09,657 INFO L82 PathProgramCache]: Analyzing trace with hash -805556227, now seen corresponding path program 1 times [2019-10-15 00:56:09,657 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:56:09,657 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415262149] [2019-10-15 00:56:09,658 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:56:09,658 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:56:09,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:56:09,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:56:10,137 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2019-10-15 00:56:10,138 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415262149] [2019-10-15 00:56:10,138 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:56:10,138 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 00:56:10,143 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100063488] [2019-10-15 00:56:10,144 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 00:56:10,144 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:56:10,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 00:56:10,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:56:10,145 INFO L87 Difference]: Start difference. First operand 9272 states and 11078 transitions. Second operand 7 states. [2019-10-15 00:56:10,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:56:10,470 INFO L93 Difference]: Finished difference Result 18604 states and 22311 transitions. [2019-10-15 00:56:10,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 00:56:10,470 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 421 [2019-10-15 00:56:10,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:56:10,506 INFO L225 Difference]: With dead ends: 18604 [2019-10-15 00:56:10,507 INFO L226 Difference]: Without dead ends: 9386 [2019-10-15 00:56:10,530 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-15 00:56:10,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9386 states. [2019-10-15 00:56:10,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9386 to 9338. [2019-10-15 00:56:10,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9338 states. [2019-10-15 00:56:10,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9338 states to 9338 states and 11192 transitions. [2019-10-15 00:56:10,917 INFO L78 Accepts]: Start accepts. Automaton has 9338 states and 11192 transitions. Word has length 421 [2019-10-15 00:56:10,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:56:10,918 INFO L462 AbstractCegarLoop]: Abstraction has 9338 states and 11192 transitions. [2019-10-15 00:56:10,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 00:56:10,919 INFO L276 IsEmpty]: Start isEmpty. Operand 9338 states and 11192 transitions. [2019-10-15 00:56:10,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2019-10-15 00:56:10,950 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:56:10,952 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:56:10,952 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:56:10,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:56:10,953 INFO L82 PathProgramCache]: Analyzing trace with hash -2036854807, now seen corresponding path program 1 times [2019-10-15 00:56:10,953 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:56:10,953 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584787600] [2019-10-15 00:56:10,954 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:56:10,954 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:56:10,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:56:11,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:56:11,571 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2019-10-15 00:56:11,572 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584787600] [2019-10-15 00:56:11,572 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:56:11,572 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 00:56:11,573 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447875312] [2019-10-15 00:56:11,573 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 00:56:11,574 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:56:11,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 00:56:11,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:56:11,574 INFO L87 Difference]: Start difference. First operand 9338 states and 11192 transitions. Second operand 7 states. [2019-10-15 00:56:11,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:56:11,767 INFO L93 Difference]: Finished difference Result 9462 states and 11310 transitions. [2019-10-15 00:56:11,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 00:56:11,768 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 427 [2019-10-15 00:56:11,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:56:11,770 INFO L225 Difference]: With dead ends: 9462 [2019-10-15 00:56:11,770 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 00:56:11,784 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:56:11,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 00:56:11,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 00:56:11,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 00:56:11,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 00:56:11,786 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 427 [2019-10-15 00:56:11,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:56:11,787 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 00:56:11,787 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 00:56:11,787 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 00:56:11,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 00:56:11,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.