java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:53:52,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:53:52,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:53:52,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:53:52,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:53:52,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:53:52,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:53:52,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:53:52,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:53:52,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:53:52,112 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:53:52,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:53:52,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:53:52,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:53:52,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:53:52,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:53:52,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:53:52,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:53:52,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:53:52,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:53:52,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:53:52,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:53:52,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:53:52,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:53:52,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:53:52,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:53:52,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:53:52,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:53:52,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:53:52,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:53:52,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:53:52,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:53:52,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:53:52,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:53:52,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:53:52,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:53:52,150 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:53:52,150 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:53:52,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:53:52,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:53:52,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:53:52,153 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 22:53:52,189 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:53:52,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:53:52,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:53:52,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:53:52,193 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:53:52,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:53:52,194 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:53:52,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:53:52,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:53:52,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:53:52,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:53:52,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:53:52,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:53:52,195 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:53:52,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:53:52,196 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:53:52,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:53:52,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:53:52,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:53:52,199 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:53:52,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:53:52,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:53:52,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:53:52,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:53:52,199 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:53:52,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:53:52,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:53:52,200 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:53:52,200 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 22:53:52,469 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:53:52,487 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:53:52,490 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:53:52,492 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:53:52,492 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:53:52,493 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i [2019-10-13 22:53:52,570 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb50cf9b4/c855ec5692024644a30bc02b4ada98f1/FLAGe2ca4fbb9 [2019-10-13 22:53:53,342 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:53:53,342 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i [2019-10-13 22:53:53,385 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb50cf9b4/c855ec5692024644a30bc02b4ada98f1/FLAGe2ca4fbb9 [2019-10-13 22:53:53,877 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb50cf9b4/c855ec5692024644a30bc02b4ada98f1 [2019-10-13 22:53:53,888 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:53:53,889 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:53:53,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:53:53,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:53:53,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:53:53,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:53:53" (1/1) ... [2019-10-13 22:53:53,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7db27347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:53, skipping insertion in model container [2019-10-13 22:53:53,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:53:53" (1/1) ... [2019-10-13 22:53:53,905 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:53:54,027 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:53:54,718 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3496] [2019-10-13 22:53:54,719 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name readpages at C: (*readpages)(struct file___0 *filp , struct address_space___0 *mapping , struct list_head *pages , unsigned int nr_pages ) [3498-3499] [2019-10-13 22:53:54,720 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name write_begin at C: (*write_begin)(struct file___0 * , struct address_space___0 *mapping , loff_t pos , unsigned int len , unsigned int flags , struct page **pagep , void **fsdata ) [3500-3502] [2019-10-13 22:53:54,721 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name write_end at C: (*write_end)(struct file___0 * , struct address_space___0 *mapping , loff_t pos , unsigned int len , unsigned int copied , struct page *page , void *fsdata ) [3503-3504] [2019-10-13 22:53:54,723 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3505] [2019-10-13 22:53:54,724 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name get_xip_mem at C: (*get_xip_mem)(struct address_space___0 * , unsigned long , int , void ** , unsigned long * ) [3511-3512] [2019-10-13 22:53:54,725 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3513] [2019-10-13 22:53:54,727 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3516] [2019-10-13 22:53:54,752 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3929] [2019-10-13 22:53:54,754 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3930] [2019-10-13 22:53:54,755 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3931] [2019-10-13 22:53:54,756 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3932] [2019-10-13 22:53:54,756 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3933] [2019-10-13 22:53:54,757 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3934] [2019-10-13 22:53:55,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:53:55,639 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:53:55,795 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3496] [2019-10-13 22:53:55,796 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name readpages at C: (*readpages)(struct file___0 *filp , struct address_space___0 *mapping , struct list_head *pages , unsigned int nr_pages ) [3498-3499] [2019-10-13 22:53:55,796 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name write_begin at C: (*write_begin)(struct file___0 * , struct address_space___0 *mapping , loff_t pos , unsigned int len , unsigned int flags , struct page **pagep , void **fsdata ) [3500-3502] [2019-10-13 22:53:55,797 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name write_end at C: (*write_end)(struct file___0 * , struct address_space___0 *mapping , loff_t pos , unsigned int len , unsigned int copied , struct page *page , void *fsdata ) [3503-3504] [2019-10-13 22:53:55,797 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3505] [2019-10-13 22:53:55,798 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name get_xip_mem at C: (*get_xip_mem)(struct address_space___0 * , unsigned long , int , void ** , unsigned long * ) [3511-3512] [2019-10-13 22:53:55,799 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3513] [2019-10-13 22:53:55,799 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3516] [2019-10-13 22:53:55,811 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3929] [2019-10-13 22:53:55,812 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3930] [2019-10-13 22:53:55,812 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3931] [2019-10-13 22:53:55,813 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3932] [2019-10-13 22:53:55,814 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3933] [2019-10-13 22:53:55,814 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3934] [2019-10-13 22:53:56,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:53:56,206 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:53:56,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:56 WrapperNode [2019-10-13 22:53:56,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:53:56,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:53:56,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:53:56,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:53:56,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:56" (1/1) ... [2019-10-13 22:53:56,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:56" (1/1) ... [2019-10-13 22:53:56,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:56" (1/1) ... [2019-10-13 22:53:56,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:56" (1/1) ... [2019-10-13 22:53:56,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:56" (1/1) ... [2019-10-13 22:53:56,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:56" (1/1) ... [2019-10-13 22:53:56,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:56" (1/1) ... [2019-10-13 22:53:56,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:53:56,499 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:53:56,499 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:53:56,499 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:53:56,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:53:56,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:53:56,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:53:56,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2019-10-13 22:53:56,606 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2019-10-13 22:53:56,606 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2019-10-13 22:53:56,606 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2019-10-13 22:53:56,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_3 [2019-10-13 22:53:56,608 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2019-10-13 22:53:56,608 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2019-10-13 22:53:56,608 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2019-10-13 22:53:56,609 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2019-10-13 22:53:56,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 22:53:56,609 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2019-10-13 22:53:56,609 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 22:53:56,610 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 22:53:56,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 22:53:56,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 22:53:56,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 22:53:56,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 22:53:56,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 22:53:56,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 22:53:56,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 22:53:56,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 22:53:56,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 22:53:56,614 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-10-13 22:53:56,614 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2019-10-13 22:53:56,615 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-10-13 22:53:56,615 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2019-10-13 22:53:56,615 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_out [2019-10-13 22:53:56,615 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-10-13 22:53:56,616 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2019-10-13 22:53:56,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-13 22:53:56,618 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2019-10-13 22:53:56,618 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_port_data [2019-10-13 22:53:56,618 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2019-10-13 22:53:56,619 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_startup [2019-10-13 22:53:56,619 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_release [2019-10-13 22:53:56,619 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_init_termios [2019-10-13 22:53:56,619 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_open [2019-10-13 22:53:56,620 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_close [2019-10-13 22:53:56,620 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_read_int_callback [2019-10-13 22:53:56,620 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write_callback [2019-10-13 22:53:56,620 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write [2019-10-13 22:53:56,620 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write_room [2019-10-13 22:53:56,621 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_tiocmget [2019-10-13 22:53:56,622 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_tiocmset [2019-10-13 22:53:56,622 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_set_termios [2019-10-13 22:53:56,622 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_ioctl [2019-10-13 22:53:56,623 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_init [2019-10-13 22:53:56,624 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_exit [2019-10-13 22:53:56,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_serial_driver_1 [2019-10-13 22:53:56,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2019-10-13 22:53:56,625 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:53:56,626 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2019-10-13 22:53:56,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_fixed_flag_4 [2019-10-13 22:53:56,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_5 [2019-10-13 22:53:56,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_port_tty_get_6 [2019-10-13 22:53:56,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_flip_buffer_push_7 [2019-10-13 22:53:56,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_get_baud_rate_8 [2019-10-13 22:53:56,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_encode_baud_rate_9 [2019-10-13 22:53:56,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_10 [2019-10-13 22:53:56,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2019-10-13 22:53:56,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 22:53:56,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-10-13 22:53:56,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_got_tty [2019-10-13 22:53:56,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_tty [2019-10-13 22:53:56,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2019-10-13 22:53:56,628 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-10-13 22:53:56,628 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 22:53:56,629 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2019-10-13 22:53:56,629 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 22:53:56,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 22:53:56,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_1 [2019-10-13 22:53:56,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2019-10-13 22:53:56,629 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2019-10-13 22:53:56,629 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2019-10-13 22:53:56,629 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 22:53:56,630 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_encode_baud_rate [2019-10-13 22:53:56,630 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2019-10-13 22:53:56,630 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_get_baud_rate [2019-10-13 22:53:56,630 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2019-10-13 22:53:56,630 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2019-10-13 22:53:56,630 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2019-10-13 22:53:56,631 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-10-13 22:53:56,631 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-10-13 22:53:56,631 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-13 22:53:56,631 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-13 22:53:56,631 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-13 22:53:56,632 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2019-10-13 22:53:56,632 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-13 22:53:56,632 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2019-10-13 22:53:56,632 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2019-10-13 22:53:56,634 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2019-10-13 22:53:56,634 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2019-10-13 22:53:56,634 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-10-13 22:53:56,634 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 22:53:56,636 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 22:53:56,636 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 22:53:56,636 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 22:53:56,636 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:53:56,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 22:53:56,637 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 22:53:56,637 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2019-10-13 22:53:56,638 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2019-10-13 22:53:56,638 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2019-10-13 22:53:56,638 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2019-10-13 22:53:56,642 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-10-13 22:53:56,642 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2019-10-13 22:53:56,642 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2019-10-13 22:53:56,644 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2019-10-13 22:53:56,644 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2019-10-13 22:53:56,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_flip_buffer_push_7 [2019-10-13 22:53:56,644 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2019-10-13 22:53:56,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_get_baud_rate_8 [2019-10-13 22:53:56,645 INFO L130 BoogieDeclarations]: Found specification of procedure tty_encode_baud_rate [2019-10-13 22:53:56,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_encode_baud_rate_9 [2019-10-13 22:53:56,652 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2019-10-13 22:53:56,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_port_tty_get_6 [2019-10-13 22:53:56,653 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2019-10-13 22:53:56,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_fixed_flag_4 [2019-10-13 22:53:56,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_3 [2019-10-13 22:53:56,653 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2019-10-13 22:53:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_got_tty [2019-10-13 22:53:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_tty [2019-10-13 22:53:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 22:53:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2019-10-13 22:53:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2019-10-13 22:53:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:53:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2019-10-13 22:53:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:53:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 22:53:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2019-10-13 22:53:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2019-10-13 22:53:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 22:53:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 22:53:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2019-10-13 22:53:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2019-10-13 22:53:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 22:53:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 22:53:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 22:53:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 22:53:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:53:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 22:53:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 22:53:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 22:53:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:53:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 22:53:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 22:53:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 22:53:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 22:53:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 22:53:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 22:53:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 22:53:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 22:53:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 22:53:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_serial_driver_1 [2019-10-13 22:53:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2019-10-13 22:53:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-10-13 22:53:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2019-10-13 22:53:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-10-13 22:53:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2019-10-13 22:53:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_out [2019-10-13 22:53:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 22:53:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 22:53:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2019-10-13 22:53:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-13 22:53:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_5 [2019-10-13 22:53:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-10-13 22:53:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-13 22:53:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_10 [2019-10-13 22:53:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2019-10-13 22:53:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 22:53:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:53:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-10-13 22:53:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-13 22:53:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-10-13 22:53:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-13 22:53:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2019-10-13 22:53:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-10-13 22:53:56,663 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-13 22:53:56,663 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2019-10-13 22:53:56,663 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_port_data [2019-10-13 22:53:56,663 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2019-10-13 22:53:56,663 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2019-10-13 22:53:56,663 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2019-10-13 22:53:56,663 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2019-10-13 22:53:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2019-10-13 22:53:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_startup [2019-10-13 22:53:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_release [2019-10-13 22:53:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_open [2019-10-13 22:53:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_close [2019-10-13 22:53:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write [2019-10-13 22:53:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write_room [2019-10-13 22:53:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_ioctl [2019-10-13 22:53:56,665 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_tiocmget [2019-10-13 22:53:56,665 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_tiocmset [2019-10-13 22:53:56,665 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_read_int_callback [2019-10-13 22:53:56,665 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write_callback [2019-10-13 22:53:56,665 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_set_termios [2019-10-13 22:53:56,665 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_init_termios [2019-10-13 22:53:56,665 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 22:53:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 22:53:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_init [2019-10-13 22:53:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_exit [2019-10-13 22:53:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2019-10-13 22:53:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_1 [2019-10-13 22:53:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 22:53:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 22:53:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:53:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2019-10-13 22:53:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-10-13 22:53:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 22:53:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 22:53:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:53:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:53:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 22:53:56,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 22:53:56,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:53:56,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 22:53:56,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 22:53:56,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 22:53:56,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 22:53:57,894 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 22:54:01,125 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2019-10-13 22:54:10,979 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:54:10,979 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 22:54:10,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:54:10 BoogieIcfgContainer [2019-10-13 22:54:10,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:54:10,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:54:10,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:54:10,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:54:10,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:53:53" (1/3) ... [2019-10-13 22:54:10,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4568516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:54:10, skipping insertion in model container [2019-10-13 22:54:10,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:56" (2/3) ... [2019-10-13 22:54:10,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4568516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:54:10, skipping insertion in model container [2019-10-13 22:54:10,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:54:10" (3/3) ... [2019-10-13 22:54:10,996 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point.cil.out.i [2019-10-13 22:54:11,008 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:54:11,018 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:54:11,030 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:54:11,062 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:54:11,062 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:54:11,062 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:54:11,063 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:54:11,063 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:54:11,063 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:54:11,063 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:54:11,063 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:54:11,096 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states. [2019-10-13 22:54:11,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-13 22:54:11,115 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:11,116 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:54:11,118 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:11,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:11,125 INFO L82 PathProgramCache]: Analyzing trace with hash -870318353, now seen corresponding path program 1 times [2019-10-13 22:54:11,135 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:11,135 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246026897] [2019-10-13 22:54:11,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:11,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:11,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:11,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:11,780 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 22:54:11,781 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246026897] [2019-10-13 22:54:11,781 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:54:11,782 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:54:11,782 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152092711] [2019-10-13 22:54:11,787 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:54:11,787 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:54:11,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:54:11,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:54:11,802 INFO L87 Difference]: Start difference. First operand 662 states. Second operand 3 states. [2019-10-13 22:54:12,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:54:12,338 INFO L93 Difference]: Finished difference Result 1313 states and 1743 transitions. [2019-10-13 22:54:12,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:54:12,340 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2019-10-13 22:54:12,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:54:12,362 INFO L225 Difference]: With dead ends: 1313 [2019-10-13 22:54:12,363 INFO L226 Difference]: Without dead ends: 634 [2019-10-13 22:54:12,374 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:54:12,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2019-10-13 22:54:12,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2019-10-13 22:54:12,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2019-10-13 22:54:12,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 823 transitions. [2019-10-13 22:54:12,494 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 823 transitions. Word has length 76 [2019-10-13 22:54:12,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:54:12,496 INFO L462 AbstractCegarLoop]: Abstraction has 634 states and 823 transitions. [2019-10-13 22:54:12,496 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:54:12,496 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 823 transitions. [2019-10-13 22:54:12,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-13 22:54:12,507 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:12,507 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 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] [2019-10-13 22:54:12,508 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:12,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:12,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1699306506, now seen corresponding path program 1 times [2019-10-13 22:54:12,509 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:12,509 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89678449] [2019-10-13 22:54:12,509 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:12,509 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:12,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:12,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:12,785 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-13 22:54:12,785 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89678449] [2019-10-13 22:54:12,786 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:54:12,786 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:54:12,786 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934854931] [2019-10-13 22:54:12,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:54:12,788 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:54:12,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:54:12,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:54:12,789 INFO L87 Difference]: Start difference. First operand 634 states and 823 transitions. Second operand 3 states. [2019-10-13 22:54:15,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:54:15,339 INFO L93 Difference]: Finished difference Result 1489 states and 1946 transitions. [2019-10-13 22:54:15,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:54:15,340 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2019-10-13 22:54:15,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:54:15,355 INFO L225 Difference]: With dead ends: 1489 [2019-10-13 22:54:15,356 INFO L226 Difference]: Without dead ends: 878 [2019-10-13 22:54:15,362 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:54:15,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2019-10-13 22:54:15,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 875. [2019-10-13 22:54:15,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 875 states. [2019-10-13 22:54:15,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1114 transitions. [2019-10-13 22:54:15,432 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1114 transitions. Word has length 120 [2019-10-13 22:54:15,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:54:15,435 INFO L462 AbstractCegarLoop]: Abstraction has 875 states and 1114 transitions. [2019-10-13 22:54:15,435 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:54:15,435 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1114 transitions. [2019-10-13 22:54:15,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-13 22:54:15,439 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:15,440 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 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] [2019-10-13 22:54:15,440 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:15,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:15,441 INFO L82 PathProgramCache]: Analyzing trace with hash 378480196, now seen corresponding path program 1 times [2019-10-13 22:54:15,441 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:15,441 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401275419] [2019-10-13 22:54:15,441 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:15,442 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:15,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:16,058 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2019-10-13 22:54:16,059 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401275419] [2019-10-13 22:54:16,059 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121837154] [2019-10-13 22:54:16,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:54:16,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:16,928 INFO L256 TraceCheckSpWp]: Trace formula consists of 2872 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-13 22:54:16,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:54:17,074 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-13 22:54:17,074 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:54:17,216 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-13 22:54:17,216 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 22:54:17,216 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [13] total 17 [2019-10-13 22:54:17,218 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516443168] [2019-10-13 22:54:17,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 22:54:17,220 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:54:17,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 22:54:17,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2019-10-13 22:54:17,221 INFO L87 Difference]: Start difference. First operand 875 states and 1114 transitions. Second operand 6 states. [2019-10-13 22:54:19,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:54:19,350 INFO L93 Difference]: Finished difference Result 2583 states and 3285 transitions. [2019-10-13 22:54:19,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 22:54:19,351 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 121 [2019-10-13 22:54:19,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:54:19,362 INFO L225 Difference]: With dead ends: 2583 [2019-10-13 22:54:19,362 INFO L226 Difference]: Without dead ends: 1686 [2019-10-13 22:54:19,366 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2019-10-13 22:54:19,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2019-10-13 22:54:19,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 1644. [2019-10-13 22:54:19,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1644 states. [2019-10-13 22:54:19,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 2099 transitions. [2019-10-13 22:54:19,445 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 2099 transitions. Word has length 121 [2019-10-13 22:54:19,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:54:19,446 INFO L462 AbstractCegarLoop]: Abstraction has 1644 states and 2099 transitions. [2019-10-13 22:54:19,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 22:54:19,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 2099 transitions. [2019-10-13 22:54:19,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-13 22:54:19,448 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:19,449 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 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] [2019-10-13 22:54:19,662 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:54:19,663 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:19,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:19,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1116688356, now seen corresponding path program 1 times [2019-10-13 22:54:19,663 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:19,664 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847204157] [2019-10-13 22:54:19,664 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:19,664 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:19,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:20,294 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2019-10-13 22:54:20,294 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847204157] [2019-10-13 22:54:20,295 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831017527] [2019-10-13 22:54:20,295 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 [2019-10-13 22:54:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:22,317 INFO L256 TraceCheckSpWp]: Trace formula consists of 3058 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-13 22:54:22,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:54:22,409 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2019-10-13 22:54:22,410 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:54:22,573 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2019-10-13 22:54:22,573 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 22:54:22,574 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [13] total 13 [2019-10-13 22:54:22,575 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484836765] [2019-10-13 22:54:22,576 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:54:22,576 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:54:22,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:54:22,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2019-10-13 22:54:22,577 INFO L87 Difference]: Start difference. First operand 1644 states and 2099 transitions. Second operand 3 states. [2019-10-13 22:54:24,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:54:24,756 INFO L93 Difference]: Finished difference Result 3191 states and 4093 transitions. [2019-10-13 22:54:24,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:54:24,756 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2019-10-13 22:54:24,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:54:24,779 INFO L225 Difference]: With dead ends: 3191 [2019-10-13 22:54:24,779 INFO L226 Difference]: Without dead ends: 3188 [2019-10-13 22:54:24,782 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 285 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2019-10-13 22:54:24,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3188 states. [2019-10-13 22:54:24,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3188 to 3117. [2019-10-13 22:54:24,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3117 states. [2019-10-13 22:54:24,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 4001 transitions. [2019-10-13 22:54:24,923 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 4001 transitions. Word has length 143 [2019-10-13 22:54:24,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:54:24,924 INFO L462 AbstractCegarLoop]: Abstraction has 3117 states and 4001 transitions. [2019-10-13 22:54:24,924 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:54:24,924 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 4001 transitions. [2019-10-13 22:54:24,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-13 22:54:24,928 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:24,928 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:54:25,145 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:54:25,146 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:25,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:25,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1161327887, now seen corresponding path program 1 times [2019-10-13 22:54:25,146 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:25,147 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355018235] [2019-10-13 22:54:25,147 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:25,147 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:25,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:25,359 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2019-10-13 22:54:25,359 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355018235] [2019-10-13 22:54:25,359 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:54:25,360 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:54:25,360 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241159496] [2019-10-13 22:54:25,360 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:54:25,360 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:54:25,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:54:25,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:54:25,361 INFO L87 Difference]: Start difference. First operand 3117 states and 4001 transitions. Second operand 3 states. [2019-10-13 22:54:27,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:54:27,983 INFO L93 Difference]: Finished difference Result 7084 states and 9169 transitions. [2019-10-13 22:54:27,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:54:27,984 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2019-10-13 22:54:27,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:54:28,014 INFO L225 Difference]: With dead ends: 7084 [2019-10-13 22:54:28,014 INFO L226 Difference]: Without dead ends: 3990 [2019-10-13 22:54:28,024 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:54:28,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3990 states. [2019-10-13 22:54:28,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3990 to 3987. [2019-10-13 22:54:28,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3987 states. [2019-10-13 22:54:28,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3987 states to 3987 states and 5057 transitions. [2019-10-13 22:54:28,220 INFO L78 Accepts]: Start accepts. Automaton has 3987 states and 5057 transitions. Word has length 164 [2019-10-13 22:54:28,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:54:28,222 INFO L462 AbstractCegarLoop]: Abstraction has 3987 states and 5057 transitions. [2019-10-13 22:54:28,222 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:54:28,222 INFO L276 IsEmpty]: Start isEmpty. Operand 3987 states and 5057 transitions. [2019-10-13 22:54:28,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-13 22:54:28,230 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:28,231 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 3, 3, 3, 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] [2019-10-13 22:54:28,231 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:28,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:28,231 INFO L82 PathProgramCache]: Analyzing trace with hash 859134196, now seen corresponding path program 1 times [2019-10-13 22:54:28,232 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:28,232 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920987089] [2019-10-13 22:54:28,233 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:28,233 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:28,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:28,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:28,537 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2019-10-13 22:54:28,542 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920987089] [2019-10-13 22:54:28,543 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823642566] [2019-10-13 22:54:28,543 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:54:29,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:29,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 3261 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 22:54:29,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:54:29,406 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:54:29,453 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2019-10-13 22:54:29,453 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:54:29,800 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2019-10-13 22:54:29,800 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 22:54:29,801 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 3] imperfect sequences [4] total 7 [2019-10-13 22:54:29,801 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111213670] [2019-10-13 22:54:29,802 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 22:54:29,802 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:54:29,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 22:54:29,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2019-10-13 22:54:29,802 INFO L87 Difference]: Start difference. First operand 3987 states and 5057 transitions. Second operand 6 states.