/usr/bin/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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 23:39:32,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 23:39:32,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 23:39:32,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 23:39:32,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 23:39:32,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 23:39:32,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 23:39:32,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 23:39:32,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 23:39:32,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 23:39:32,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 23:39:32,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 23:39:32,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 23:39:32,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 23:39:32,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 23:39:32,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 23:39:32,209 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 23:39:32,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 23:39:32,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 23:39:32,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 23:39:32,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 23:39:32,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 23:39:32,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 23:39:32,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 23:39:32,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 23:39:32,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 23:39:32,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 23:39:32,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 23:39:32,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 23:39:32,239 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 23:39:32,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 23:39:32,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 23:39:32,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 23:39:32,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 23:39:32,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 23:39:32,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 23:39:32,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 23:39:32,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 23:39:32,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 23:39:32,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 23:39:32,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 23:39:32,249 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 [2019-11-06 23:39:32,267 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 23:39:32,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 23:39:32,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 23:39:32,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 23:39:32,270 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 23:39:32,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 23:39:32,271 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 23:39:32,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 23:39:32,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 23:39:32,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 23:39:32,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 23:39:32,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 23:39:32,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 23:39:32,272 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 23:39:32,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 23:39:32,272 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 23:39:32,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 23:39:32,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 23:39:32,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 23:39:32,273 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 23:39:32,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 23:39:32,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 23:39:32,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 23:39:32,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 23:39:32,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 23:39:32,274 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 23:39:32,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 23:39:32,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 23:39:32,275 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 [2019-11-06 23:39:32,548 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 23:39:32,561 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 23:39:32,565 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 23:39:32,566 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 23:39:32,566 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 23:39:32,567 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i [2019-11-06 23:39:32,627 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e40e565e/684f932d4a1e42ed84c5d0ca44924a5e/FLAG76a31d4d2 [2019-11-06 23:39:33,435 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 23:39:33,438 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i [2019-11-06 23:39:33,481 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e40e565e/684f932d4a1e42ed84c5d0ca44924a5e/FLAG76a31d4d2 [2019-11-06 23:39:33,977 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e40e565e/684f932d4a1e42ed84c5d0ca44924a5e [2019-11-06 23:39:33,986 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 23:39:33,988 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 23:39:33,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 23:39:33,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 23:39:33,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 23:39:33,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:39:33" (1/1) ... [2019-11-06 23:39:33,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d45b9fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:39:33, skipping insertion in model container [2019-11-06 23:39:33,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:39:33" (1/1) ... [2019-11-06 23:39:34,003 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 23:39:34,123 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 23:39:34,814 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3591] [2019-11-06 23:39:34,815 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3592-3593] [2019-11-06 23:39:36,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 23:39:36,555 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 23:39:36,692 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3591] [2019-11-06 23:39:36,694 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3592-3593] [2019-11-06 23:39:36,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 23:39:37,326 INFO L192 MainTranslator]: Completed translation [2019-11-06 23:39:37,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:39:37 WrapperNode [2019-11-06 23:39:37,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 23:39:37,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 23:39:37,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 23:39:37,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 23:39:37,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:39:37" (1/1) ... [2019-11-06 23:39:37,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:39:37" (1/1) ... [2019-11-06 23:39:37,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:39:37" (1/1) ... [2019-11-06 23:39:37,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:39:37" (1/1) ... [2019-11-06 23:39:37,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:39:37" (1/1) ... [2019-11-06 23:39:37,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:39:37" (1/1) ... [2019-11-06 23:39:37,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:39:37" (1/1) ... [2019-11-06 23:39:37,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 23:39:37,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 23:39:37,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 23:39:37,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 23:39:37,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:39:37" (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 [2019-11-06 23:39:37,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 23:39:37,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 23:39:37,775 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-11-06 23:39:37,775 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2019-11-06 23:39:37,775 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-11-06 23:39:37,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_1 [2019-11-06 23:39:37,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_5 [2019-11-06 23:39:37,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_8 [2019-11-06 23:39:37,776 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2019-11-06 23:39:37,776 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2019-11-06 23:39:37,776 INFO L138 BoogieDeclarations]: Found implementation of procedure outsw [2019-11-06 23:39:37,777 INFO L138 BoogieDeclarations]: Found implementation of procedure insw [2019-11-06 23:39:37,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-11-06 23:39:37,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmalloc_12 [2019-11-06 23:39:37,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-06 23:39:37,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-06 23:39:37,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-11-06 23:39:37,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-11-06 23:39:37,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-11-06 23:39:37,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-11-06 23:39:37,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-11-06 23:39:37,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-11-06 23:39:37,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-11-06 23:39:37,780 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-11-06 23:39:37,780 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-11-06 23:39:37,780 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tty_driver [2019-11-06 23:39:37,780 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2019-11-06 23:39:37,781 INFO L138 BoogieDeclarations]: Found implementation of procedure flag_buf_ptr [2019-11-06 23:39:37,781 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_cts_enabled [2019-11-06 23:39:37,782 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_char [2019-11-06 23:39:37,782 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2019-11-06 23:39:37,782 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-11-06 23:39:37,782 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-11-06 23:39:37,783 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2019-11-06 23:39:37,783 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2019-11-06 23:39:37,783 INFO L138 BoogieDeclarations]: Found implementation of procedure WaitTillCardIsFree [2019-11-06 23:39:37,783 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_card [2019-11-06 23:39:37,783 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_card [2019-11-06 23:39:37,783 INFO L138 BoogieDeclarations]: Found implementation of procedure raise_dtr [2019-11-06 23:39:37,783 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_dtr [2019-11-06 23:39:37,784 INFO L138 BoogieDeclarations]: Found implementation of procedure raise_rts [2019-11-06 23:39:37,784 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_rts [2019-11-06 23:39:37,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_dtr_rts [2019-11-06 23:39:37,784 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_dtr_rts [2019-11-06 23:39:37,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_tx [2019-11-06 23:39:37,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_interrupt [2019-11-06 23:39:37,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_config_port [2019-11-06 23:39:37,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_setup_board [2019-11-06 23:39:37,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_activate [2019-11-06 23:39:37,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_carrier_raised [2019-11-06 23:39:37,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_find_port [2019-11-06 23:39:37,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_open [2019-11-06 23:39:37,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_shutdown_port [2019-11-06 23:39:37,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_flush_buffer [2019-11-06 23:39:37,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_shutdown [2019-11-06 23:39:37,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_close [2019-11-06 23:39:37,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_write [2019-11-06 23:39:37,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_put_char [2019-11-06 23:39:37,787 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_flush_chars [2019-11-06 23:39:37,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_write_room [2019-11-06 23:39:37,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_chars_in_buffer [2019-11-06 23:39:37,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_send_break [2019-11-06 23:39:37,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_tiocmget [2019-11-06 23:39:37,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_tiocmset [2019-11-06 23:39:37,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_set_serial_info [2019-11-06 23:39:37,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_get_serial_info [2019-11-06 23:39:37,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_ioctl [2019-11-06 23:39:37,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_set_termios [2019-11-06 23:39:37,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_throttle [2019-11-06 23:39:37,790 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_unthrottle [2019-11-06 23:39:37,790 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_stop [2019-11-06 23:39:37,790 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_start [2019-11-06 23:39:37,790 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_hangup [2019-11-06 23:39:37,791 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_card [2019-11-06 23:39:37,791 INFO L138 BoogieDeclarations]: Found implementation of procedure load_firmware [2019-11-06 23:39:37,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_probe [2019-11-06 23:39:37,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_remove [2019-11-06 23:39:37,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_init [2019-11-06 23:39:37,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_exit [2019-11-06 23:39:37,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_tty_operations_3 [2019-11-06 23:39:37,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_pci_driver_5 [2019-11-06 23:39:37,794 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2019-11-06 23:39:37,795 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2019-11-06 23:39:37,796 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2019-11-06 23:39:37,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2019-11-06 23:39:37,796 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2019-11-06 23:39:37,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_port_operations_2 [2019-11-06 23:39:37,796 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 23:39:37,796 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-11-06 23:39:37,796 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-11-06 23:39:37,797 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-11-06 23:39:37,797 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-11-06 23:39:37,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmem_cache_alloc_16 [2019-11-06 23:39:37,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_20 [2019-11-06 23:39:37,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_21 [2019-11-06 23:39:37,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_22 [2019-11-06 23:39:37,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2019-11-06 23:39:37,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2019-11-06 23:39:37,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2019-11-06 23:39:37,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2019-11-06 23:39:37,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2019-11-06 23:39:37,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2019-11-06 23:39:37,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-11-06 23:39:37,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-11-06 23:39:37,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-11-06 23:39:37,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-11-06 23:39:37,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2019-11-06 23:39:37,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_register_driver [2019-11-06 23:39:37,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-11-06 23:39:37,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __tty_alloc_driver [2019-11-06 23:39:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-11-06 23:39:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-11-06 23:39:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-11-06 23:39:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-11-06 23:39:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-11-06 23:39:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-11-06 23:39:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-11-06 23:39:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-11-06 23:39:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-11-06 23:39:37,802 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-11-06 23:39:37,802 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-11-06 23:39:37,803 INFO L138 BoogieDeclarations]: Found implementation of procedure do_SAK [2019-11-06 23:39:37,803 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2019-11-06 23:39:37,803 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2019-11-06 23:39:37,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-11-06 23:39:37,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destruct_2 [2019-11-06 23:39:37,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_3 [2019-11-06 23:39:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-11-06 23:39:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2019-11-06 23:39:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_setup_3 [2019-11-06 23:39:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2019-11-06 23:39:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-11-06 23:39:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-11-06 23:39:37,808 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2019-11-06 23:39:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2019-11-06 23:39:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-11-06 23:39:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-11-06 23:39:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2019-11-06 23:39:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2019-11-06 23:39:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2019-11-06 23:39:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_region [2019-11-06 23:39:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2019-11-06 23:39:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-11-06 23:39:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2019-11-06 23:39:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2019-11-06 23:39:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2019-11-06 23:39:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2019-11-06 23:39:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2019-11-06 23:39:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2019-11-06 23:39:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_flags [2019-11-06 23:39:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2019-11-06 23:39:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_alloc_xmit_buf [2019-11-06 23:39:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_close [2019-11-06 23:39:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_destroy [2019-11-06 23:39:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_free_xmit_buf [2019-11-06 23:39:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_hangup [2019-11-06 23:39:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_init [2019-11-06 23:39:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_open [2019-11-06 23:39:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_register_device [2019-11-06 23:39:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2019-11-06 23:39:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_prepare_flip_string [2019-11-06 23:39:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_driver [2019-11-06 23:39:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_set_operations [2019-11-06 23:39:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_device [2019-11-06 23:39:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2019-11-06 23:39:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2019-11-06 23:39:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-11-06 23:39:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-11-06 23:39:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-06 23:39:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-06 23:39:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-06 23:39:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 23:39:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-11-06 23:39:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2019-11-06 23:39:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2019-11-06 23:39:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-11-06 23:39:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2019-11-06 23:39:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-11-06 23:39:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-11-06 23:39:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-11-06 23:39:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-06 23:39:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-11-06 23:39:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2019-11-06 23:39:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-11-06 23:39:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-11-06 23:39:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-11-06 23:39:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-11-06 23:39:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-11-06 23:39:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_1 [2019-11-06 23:39:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-11-06 23:39:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_5 [2019-11-06 23:39:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-11-06 23:39:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_8 [2019-11-06 23:39:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-11-06 23:39:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-11-06 23:39:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-11-06 23:39:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-11-06 23:39:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2019-11-06 23:39:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-11-06 23:39:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-11-06 23:39:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2019-11-06 23:39:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2019-11-06 23:39:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure outsw [2019-11-06 23:39:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure insw [2019-11-06 23:39:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-06 23:39:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-06 23:39:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-11-06 23:39:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2019-11-06 23:39:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmem_cache_alloc_16 [2019-11-06 23:39:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmalloc_12 [2019-11-06 23:39:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-11-06 23:39:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2019-11-06 23:39:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 23:39:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-06 23:39:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 23:39:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-11-06 23:39:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-11-06 23:39:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-11-06 23:39:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-06 23:39:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-06 23:39:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 23:39:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-06 23:39:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-06 23:39:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-11-06 23:39:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-11-06 23:39:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-11-06 23:39:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-11-06 23:39:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-11-06 23:39:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-11-06 23:39:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_tty_operations_3 [2019-11-06 23:39:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_pci_driver_5 [2019-11-06 23:39:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2019-11-06 23:39:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2019-11-06 23:39:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2019-11-06 23:39:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2019-11-06 23:39:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2019-11-06 23:39:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_port_operations_2 [2019-11-06 23:39:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2019-11-06 23:39:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2019-11-06 23:39:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-11-06 23:39:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-11-06 23:39:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-11-06 23:39:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-11-06 23:39:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-11-06 23:39:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-11-06 23:39:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-11-06 23:39:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure __tty_alloc_driver [2019-11-06 23:39:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2019-11-06 23:39:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure tty_set_operations [2019-11-06 23:39:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tty_driver [2019-11-06 23:39:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2019-11-06 23:39:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure flag_buf_ptr [2019-11-06 23:39:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 23:39:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2019-11-06 23:39:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_driver [2019-11-06 23:39:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2019-11-06 23:39:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_device [2019-11-06 23:39:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2019-11-06 23:39:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure do_SAK [2019-11-06 23:39:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2019-11-06 23:39:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_init [2019-11-06 23:39:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_register_device [2019-11-06 23:39:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_alloc_xmit_buf [2019-11-06 23:39:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_free_xmit_buf [2019-11-06 23:39:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_destroy [2019-11-06 23:39:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_cts_enabled [2019-11-06 23:39:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2019-11-06 23:39:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_hangup [2019-11-06 23:39:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_close [2019-11-06 23:39:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_open [2019-11-06 23:39:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_flags [2019-11-06 23:39:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure tty_prepare_flip_string [2019-11-06 23:39:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2019-11-06 23:39:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_char [2019-11-06 23:39:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 23:39:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 23:39:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 23:39:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 23:39:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2019-11-06 23:39:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2019-11-06 23:39:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_20 [2019-11-06 23:39:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2019-11-06 23:39:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_21 [2019-11-06 23:39:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_22 [2019-11-06 23:39:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-11-06 23:39:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2019-11-06 23:39:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-11-06 23:39:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-11-06 23:39:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 23:39:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-11-06 23:39:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-11-06 23:39:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-11-06 23:39:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2019-11-06 23:39:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2019-11-06 23:39:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_region [2019-11-06 23:39:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2019-11-06 23:39:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_register_driver [2019-11-06 23:39:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2019-11-06 23:39:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2019-11-06 23:39:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2019-11-06 23:39:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_probe [2019-11-06 23:39:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_remove [2019-11-06 23:39:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_tx [2019-11-06 23:39:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_start [2019-11-06 23:39:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure WaitTillCardIsFree [2019-11-06 23:39:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure lock_card [2019-11-06 23:39:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_card [2019-11-06 23:39:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure raise_dtr [2019-11-06 23:39:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure drop_dtr [2019-11-06 23:39:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure raise_rts [2019-11-06 23:39:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure drop_rts [2019-11-06 23:39:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_dtr_rts [2019-11-06 23:39:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure drop_dtr_rts [2019-11-06 23:39:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_interrupt [2019-11-06 23:39:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_config_port [2019-11-06 23:39:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_setup_board [2019-11-06 23:39:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_activate [2019-11-06 23:39:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_carrier_raised [2019-11-06 23:39:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_find_port [2019-11-06 23:39:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_open [2019-11-06 23:39:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_shutdown_port [2019-11-06 23:39:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_flush_buffer [2019-11-06 23:39:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_shutdown [2019-11-06 23:39:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_close [2019-11-06 23:39:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-06 23:39:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_write [2019-11-06 23:39:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-06 23:39:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_put_char [2019-11-06 23:39:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_flush_chars [2019-11-06 23:39:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_write_room [2019-11-06 23:39:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_chars_in_buffer [2019-11-06 23:39:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_send_break [2019-11-06 23:39:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_tiocmget [2019-11-06 23:39:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_tiocmset [2019-11-06 23:39:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_set_serial_info [2019-11-06 23:39:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_get_serial_info [2019-11-06 23:39:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-06 23:39:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_ioctl [2019-11-06 23:39:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_set_termios [2019-11-06 23:39:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_throttle [2019-11-06 23:39:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_unthrottle [2019-11-06 23:39:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_stop [2019-11-06 23:39:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_hangup [2019-11-06 23:39:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure reset_card [2019-11-06 23:39:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure load_firmware [2019-11-06 23:39:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_init [2019-11-06 23:39:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_exit [2019-11-06 23:39:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_setup_3 [2019-11-06 23:39:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destruct_2 [2019-11-06 23:39:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_3 [2019-11-06 23:39:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-11-06 23:39:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-11-06 23:39:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2019-11-06 23:39:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 23:39:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2019-11-06 23:39:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2019-11-06 23:39:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2019-11-06 23:39:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2019-11-06 23:39:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-11-06 23:39:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-11-06 23:39:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 23:39:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 23:39:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 23:39:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-06 23:39:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 23:39:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-11-06 23:39:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-11-06 23:39:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-06 23:39:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-06 23:39:39,357 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-11-06 23:39:48,215 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 23:39:48,216 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-06 23:39:48,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:39:48 BoogieIcfgContainer [2019-11-06 23:39:48,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 23:39:48,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 23:39:48,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 23:39:48,227 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 23:39:48,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:39:33" (1/3) ... [2019-11-06 23:39:48,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545fb109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:39:48, skipping insertion in model container [2019-11-06 23:39:48,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:39:37" (2/3) ... [2019-11-06 23:39:48,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545fb109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:39:48, skipping insertion in model container [2019-11-06 23:39:48,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:39:48" (3/3) ... [2019-11-06 23:39:48,234 INFO L109 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i [2019-11-06 23:39:48,250 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 23:39:48,264 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 23:39:48,283 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 23:39:48,336 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 23:39:48,336 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 23:39:48,337 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 23:39:48,337 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 23:39:48,337 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 23:39:48,337 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 23:39:48,337 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 23:39:48,338 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 23:39:48,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1655 states. [2019-11-06 23:39:48,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2019-11-06 23:39:48,494 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:39:48,499 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 23:39:48,503 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:39:48,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:39:48,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1462961558, now seen corresponding path program 1 times [2019-11-06 23:39:48,522 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:39:48,522 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126372674] [2019-11-06 23:39:48,523 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:39:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:39:49,652 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2019-11-06 23:39:49,653 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126372674] [2019-11-06 23:39:49,653 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:39:49,654 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 23:39:49,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146696336] [2019-11-06 23:39:49,662 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 23:39:49,665 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:39:49,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 23:39:49,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 23:39:49,685 INFO L87 Difference]: Start difference. First operand 1655 states. Second operand 3 states. [2019-11-06 23:39:50,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:39:50,158 INFO L93 Difference]: Finished difference Result 4503 states and 6351 transitions. [2019-11-06 23:39:50,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 23:39:50,160 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 256 [2019-11-06 23:39:50,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:39:50,209 INFO L225 Difference]: With dead ends: 4503 [2019-11-06 23:39:50,209 INFO L226 Difference]: Without dead ends: 2822 [2019-11-06 23:39:50,227 INFO L630 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 [2019-11-06 23:39:50,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2822 states. [2019-11-06 23:39:50,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2822 to 2822. [2019-11-06 23:39:50,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2822 states. [2019-11-06 23:39:50,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2822 states to 2822 states and 3933 transitions. [2019-11-06 23:39:50,523 INFO L78 Accepts]: Start accepts. Automaton has 2822 states and 3933 transitions. Word has length 256 [2019-11-06 23:39:50,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:39:50,525 INFO L462 AbstractCegarLoop]: Abstraction has 2822 states and 3933 transitions. [2019-11-06 23:39:50,525 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 23:39:50,525 INFO L276 IsEmpty]: Start isEmpty. Operand 2822 states and 3933 transitions. [2019-11-06 23:39:50,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2019-11-06 23:39:50,553 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:39:50,554 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-06 23:39:50,554 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:39:50,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:39:50,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1009079095, now seen corresponding path program 1 times [2019-11-06 23:39:50,555 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:39:50,555 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090516276] [2019-11-06 23:39:50,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:39:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:39:51,007 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2019-11-06 23:39:51,008 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090516276] [2019-11-06 23:39:51,008 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:39:51,009 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 23:39:51,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279056577] [2019-11-06 23:39:51,012 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 23:39:51,013 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:39:51,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 23:39:51,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 23:39:51,014 INFO L87 Difference]: Start difference. First operand 2822 states and 3933 transitions. Second operand 3 states. [2019-11-06 23:39:51,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:39:51,165 INFO L93 Difference]: Finished difference Result 5633 states and 7861 transitions. [2019-11-06 23:39:51,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 23:39:51,166 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 339 [2019-11-06 23:39:51,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:39:51,186 INFO L225 Difference]: With dead ends: 5633 [2019-11-06 23:39:51,187 INFO L226 Difference]: Without dead ends: 2838 [2019-11-06 23:39:51,199 INFO L630 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 [2019-11-06 23:39:51,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2838 states. [2019-11-06 23:39:51,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2838 to 2824. [2019-11-06 23:39:51,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2824 states. [2019-11-06 23:39:51,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2824 states to 2824 states and 3935 transitions. [2019-11-06 23:39:51,340 INFO L78 Accepts]: Start accepts. Automaton has 2824 states and 3935 transitions. Word has length 339 [2019-11-06 23:39:51,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:39:51,341 INFO L462 AbstractCegarLoop]: Abstraction has 2824 states and 3935 transitions. [2019-11-06 23:39:51,341 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 23:39:51,341 INFO L276 IsEmpty]: Start isEmpty. Operand 2824 states and 3935 transitions. [2019-11-06 23:39:51,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2019-11-06 23:39:51,360 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:39:51,360 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-06 23:39:51,360 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:39:51,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:39:51,361 INFO L82 PathProgramCache]: Analyzing trace with hash 842186655, now seen corresponding path program 1 times [2019-11-06 23:39:51,361 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:39:51,361 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447649645] [2019-11-06 23:39:51,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:39:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:39:51,903 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2019-11-06 23:39:51,903 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447649645] [2019-11-06 23:39:51,904 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:39:51,904 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 23:39:51,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735743434] [2019-11-06 23:39:51,906 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 23:39:51,906 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:39:51,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 23:39:51,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 23:39:51,907 INFO L87 Difference]: Start difference. First operand 2824 states and 3935 transitions. Second operand 3 states. [2019-11-06 23:39:52,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:39:52,070 INFO L93 Difference]: Finished difference Result 5625 states and 7847 transitions. [2019-11-06 23:39:52,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 23:39:52,072 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 352 [2019-11-06 23:39:52,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:39:52,099 INFO L225 Difference]: With dead ends: 5625 [2019-11-06 23:39:52,099 INFO L226 Difference]: Without dead ends: 2828 [2019-11-06 23:39:52,116 INFO L630 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 [2019-11-06 23:39:52,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2019-11-06 23:39:52,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 2826. [2019-11-06 23:39:52,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2826 states. [2019-11-06 23:39:52,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2826 states to 2826 states and 3937 transitions. [2019-11-06 23:39:52,234 INFO L78 Accepts]: Start accepts. Automaton has 2826 states and 3937 transitions. Word has length 352 [2019-11-06 23:39:52,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:39:52,235 INFO L462 AbstractCegarLoop]: Abstraction has 2826 states and 3937 transitions. [2019-11-06 23:39:52,235 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 23:39:52,235 INFO L276 IsEmpty]: Start isEmpty. Operand 2826 states and 3937 transitions. [2019-11-06 23:39:52,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2019-11-06 23:39:52,254 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:39:52,254 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-06 23:39:52,255 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:39:52,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:39:52,255 INFO L82 PathProgramCache]: Analyzing trace with hash 542789211, now seen corresponding path program 1 times [2019-11-06 23:39:52,255 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:39:52,256 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040643162] [2019-11-06 23:39:52,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:39:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:39:52,688 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2019-11-06 23:39:52,689 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040643162] [2019-11-06 23:39:52,689 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086928353] [2019-11-06 23:39:52,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 23:39:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:39:54,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 4479 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-06 23:39:54,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 23:39:54,286 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2019-11-06 23:39:54,286 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 23:39:55,342 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2019-11-06 23:39:55,346 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-06 23:39:55,346 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 3 [2019-11-06 23:39:55,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669117218] [2019-11-06 23:39:55,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 23:39:55,357 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:39:55,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 23:39:55,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 23:39:55,360 INFO L87 Difference]: Start difference. First operand 2826 states and 3937 transitions. Second operand 3 states. [2019-11-06 23:39:55,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:39:55,478 INFO L93 Difference]: Finished difference Result 5627 states and 7928 transitions. [2019-11-06 23:39:55,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 23:39:55,478 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 354 [2019-11-06 23:39:55,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:39:55,500 INFO L225 Difference]: With dead ends: 5627 [2019-11-06 23:39:55,500 INFO L226 Difference]: Without dead ends: 2828 [2019-11-06 23:39:55,513 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 709 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 23:39:55,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2019-11-06 23:39:55,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 2826. [2019-11-06 23:39:55,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2826 states. [2019-11-06 23:39:55,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2826 states to 2826 states and 3931 transitions. [2019-11-06 23:39:55,639 INFO L78 Accepts]: Start accepts. Automaton has 2826 states and 3931 transitions. Word has length 354 [2019-11-06 23:39:55,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:39:55,640 INFO L462 AbstractCegarLoop]: Abstraction has 2826 states and 3931 transitions. [2019-11-06 23:39:55,640 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 23:39:55,640 INFO L276 IsEmpty]: Start isEmpty. Operand 2826 states and 3931 transitions. [2019-11-06 23:39:55,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2019-11-06 23:39:55,659 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:39:55,660 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-06 23:39:55,873 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 23:39:55,873 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:39:55,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:39:55,874 INFO L82 PathProgramCache]: Analyzing trace with hash 885255781, now seen corresponding path program 1 times [2019-11-06 23:39:55,874 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:39:55,874 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58064014] [2019-11-06 23:39:55,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:39:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:39:56,482 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2019-11-06 23:39:56,482 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58064014] [2019-11-06 23:39:56,482 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:39:56,483 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 23:39:56,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756188498] [2019-11-06 23:39:56,484 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 23:39:56,485 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:39:56,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 23:39:56,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 23:39:56,485 INFO L87 Difference]: Start difference. First operand 2826 states and 3931 transitions. Second operand 3 states. [2019-11-06 23:39:56,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:39:56,606 INFO L93 Difference]: Finished difference Result 4634 states and 6523 transitions. [2019-11-06 23:39:56,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 23:39:56,607 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 358 [2019-11-06 23:39:56,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:39:56,640 INFO L225 Difference]: With dead ends: 4634 [2019-11-06 23:39:56,641 INFO L226 Difference]: Without dead ends: 4631 [2019-11-06 23:39:56,644 INFO L630 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 [2019-11-06 23:39:56,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4631 states. [2019-11-06 23:39:56,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4631 to 4541. [2019-11-06 23:39:56,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4541 states. [2019-11-06 23:39:56,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4541 states to 4541 states and 6364 transitions. [2019-11-06 23:39:56,846 INFO L78 Accepts]: Start accepts. Automaton has 4541 states and 6364 transitions. Word has length 358 [2019-11-06 23:39:56,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:39:56,848 INFO L462 AbstractCegarLoop]: Abstraction has 4541 states and 6364 transitions. [2019-11-06 23:39:56,848 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 23:39:56,848 INFO L276 IsEmpty]: Start isEmpty. Operand 4541 states and 6364 transitions. [2019-11-06 23:39:56,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2019-11-06 23:39:56,878 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:39:56,878 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-06 23:39:56,878 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:39:56,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:39:56,879 INFO L82 PathProgramCache]: Analyzing trace with hash 2090425307, now seen corresponding path program 1 times [2019-11-06 23:39:56,879 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:39:56,879 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785271243] [2019-11-06 23:39:56,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:39:56,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:39:57,304 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2019-11-06 23:39:57,305 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785271243] [2019-11-06 23:39:57,305 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:39:57,305 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 23:39:57,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963315849] [2019-11-06 23:39:57,307 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 23:39:57,307 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:39:57,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 23:39:57,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 23:39:57,308 INFO L87 Difference]: Start difference. First operand 4541 states and 6364 transitions. Second operand 3 states. [2019-11-06 23:39:57,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:39:57,719 INFO L93 Difference]: Finished difference Result 13157 states and 18432 transitions. [2019-11-06 23:39:57,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 23:39:57,720 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 393 [2019-11-06 23:39:57,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:39:57,776 INFO L225 Difference]: With dead ends: 13157 [2019-11-06 23:39:57,777 INFO L226 Difference]: Without dead ends: 8643 [2019-11-06 23:39:57,796 INFO L630 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 [2019-11-06 23:39:57,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8643 states. [2019-11-06 23:39:58,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8643 to 8638. [2019-11-06 23:39:58,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8638 states. [2019-11-06 23:39:58,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8638 states to 8638 states and 12091 transitions. [2019-11-06 23:39:58,188 INFO L78 Accepts]: Start accepts. Automaton has 8638 states and 12091 transitions. Word has length 393 [2019-11-06 23:39:58,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:39:58,188 INFO L462 AbstractCegarLoop]: Abstraction has 8638 states and 12091 transitions. [2019-11-06 23:39:58,188 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 23:39:58,189 INFO L276 IsEmpty]: Start isEmpty. Operand 8638 states and 12091 transitions. [2019-11-06 23:39:58,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2019-11-06 23:39:58,244 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:39:58,245 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-06 23:39:58,245 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:39:58,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:39:58,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1607139663, now seen corresponding path program 2 times [2019-11-06 23:39:58,246 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:39:58,246 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300788652] [2019-11-06 23:39:58,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:39:58,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:39:58,711 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2019-11-06 23:39:58,712 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300788652] [2019-11-06 23:39:58,712 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:39:58,712 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 23:39:58,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291445033] [2019-11-06 23:39:58,713 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 23:39:58,714 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:39:58,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 23:39:58,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 23:39:58,714 INFO L87 Difference]: Start difference. First operand 8638 states and 12091 transitions. Second operand 3 states. [2019-11-06 23:40:01,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:40:01,290 INFO L93 Difference]: Finished difference Result 21493 states and 30118 transitions. [2019-11-06 23:40:01,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 23:40:01,291 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 393 [2019-11-06 23:40:01,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:40:01,374 INFO L225 Difference]: With dead ends: 21493 [2019-11-06 23:40:01,375 INFO L226 Difference]: Without dead ends: 12882 [2019-11-06 23:40:01,409 INFO L630 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 [2019-11-06 23:40:01,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12882 states. [2019-11-06 23:40:01,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12882 to 12847. [2019-11-06 23:40:01,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12847 states. [2019-11-06 23:40:01,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12847 states to 12847 states and 17982 transitions. [2019-11-06 23:40:01,878 INFO L78 Accepts]: Start accepts. Automaton has 12847 states and 17982 transitions. Word has length 393 [2019-11-06 23:40:01,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:40:01,879 INFO L462 AbstractCegarLoop]: Abstraction has 12847 states and 17982 transitions. [2019-11-06 23:40:01,879 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 23:40:01,879 INFO L276 IsEmpty]: Start isEmpty. Operand 12847 states and 17982 transitions. [2019-11-06 23:40:01,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2019-11-06 23:40:01,944 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:40:01,945 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-06 23:40:01,945 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:40:01,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:40:01,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1502504745, now seen corresponding path program 1 times [2019-11-06 23:40:01,946 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:40:01,946 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919687134] [2019-11-06 23:40:01,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:40:02,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:40:02,631 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2019-11-06 23:40:02,632 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919687134] [2019-11-06 23:40:02,632 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121617268] [2019-11-06 23:40:02,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 23:40:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:40:03,743 INFO L256 TraceCheckSpWp]: Trace formula consists of 4608 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 23:40:03,765 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 23:40:03,929 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 73 proven. 1 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2019-11-06 23:40:03,930 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 23:40:04,310 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2019-11-06 23:40:04,311 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [682146146] [2019-11-06 23:40:04,317 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 394 [2019-11-06 23:40:04,403 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-06 23:40:04,403 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-06 23:40:04,672 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-06 23:40:04,674 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 297 root evaluator evaluations with a maximum evaluation depth of 0. Performed 297 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 576 variables. [2019-11-06 23:40:04,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:40:04,679 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates