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-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:18:58,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:18:58,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:18:58,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:18:58,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:18:58,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:18:58,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:18:58,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:18:58,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:18:58,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:18:58,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:18:58,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:18:58,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:18:58,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:18:58,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:18:58,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:18:58,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:18:58,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:18:58,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:18:58,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:18:58,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:18:58,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:18:58,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:18:58,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:18:58,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:18:58,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:18:58,389 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:18:58,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:18:58,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:18:58,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:18:58,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:18:58,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:18:58,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:18:58,394 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:18:58,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:18:58,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:18:58,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:18:58,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:18:58,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:18:58,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:18:58,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:18:58,399 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 22:18:58,414 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:18:58,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:18:58,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:18:58,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:18:58,416 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:18:58,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:18:58,417 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:18:58,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:18:58,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:18:58,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:18:58,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:18:58,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:18:58,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:18:58,418 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:18:58,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:18:58,418 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:18:58,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:18:58,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:18:58,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:18:58,419 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:18:58,419 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:18:58,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:18:58,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:18:58,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:18:58,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:18:58,420 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:18:58,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:18:58,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:18:58,421 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 22:18:58,706 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:18:58,720 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:18:58,724 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:18:58,725 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:18:58,726 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:18:58,727 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i [2019-10-13 22:18:58,796 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e9191093/c39dc871e1fb44988b4f94e5bcba0d8b/FLAGc4f1e9da2 [2019-10-13 22:18:59,614 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:18:59,616 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i [2019-10-13 22:18:59,670 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e9191093/c39dc871e1fb44988b4f94e5bcba0d8b/FLAGc4f1e9da2 [2019-10-13 22:19:00,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e9191093/c39dc871e1fb44988b4f94e5bcba0d8b [2019-10-13 22:19:00,092 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:19:00,094 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:19:00,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:19:00,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:19:00,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:19:00,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:19:00" (1/1) ... [2019-10-13 22:19:00,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18169cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:00, skipping insertion in model container [2019-10-13 22:19:00,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:19:00" (1/1) ... [2019-10-13 22:19:00,108 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:19:00,234 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:19:02,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:19:02,506 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:19:02,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:19:03,080 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:19:03,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:03 WrapperNode [2019-10-13 22:19:03,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:19:03,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:19:03,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:19:03,082 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:19:03,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:03" (1/1) ... [2019-10-13 22:19:03,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:03" (1/1) ... [2019-10-13 22:19:03,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:03" (1/1) ... [2019-10-13 22:19:03,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:03" (1/1) ... [2019-10-13 22:19:03,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:03" (1/1) ... [2019-10-13 22:19:03,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:03" (1/1) ... [2019-10-13 22:19:03,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:03" (1/1) ... [2019-10-13 22:19:03,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:19:03,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:19:03,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:19:03,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:19:03,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:03" (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 22:19:03,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:19:03,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:19:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2019-10-13 22:19:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-13 22:19:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-10-13 22:19:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-13 22:19:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2019-10-13 22:19:03,477 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-10-13 22:19:03,477 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2019-10-13 22:19:03,478 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64 [2019-10-13 22:19:03,478 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 22:19:03,480 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-13 22:19:03,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_ktime [2019-10-13 22:19:03,480 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2019-10-13 22:19:03,480 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2019-10-13 22:19:03,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 22:19:03,485 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 22:19:03,485 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 22:19:03,485 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-13 22:19:03,486 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-13 22:19:03,486 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2019-10-13 22:19:03,486 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_hwtstamps [2019-10-13 22:19:03,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_head_init [2019-10-13 22:19:03,486 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2019-10-13 22:19:03,486 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2019-10-13 22:19:03,486 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_mac_header [2019-10-13 22:19:03,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 22:19:03,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 22:19:03,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 22:19:03,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 22:19:03,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 22:19:03,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 22:19:03,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 22:19:03,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 22:19:03,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 22:19:03,488 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hdr [2019-10-13 22:19:03,488 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read [2019-10-13 22:19:03,489 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write [2019-10-13 22:19:03,489 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_gpio_defaults [2019-10-13 22:19:03,489 INFO L138 BoogieDeclarations]: Found implementation of procedure broadcast_write [2019-10-13 22:19:03,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ext_read [2019-10-13 22:19:03,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ext_write [2019-10-13 22:19:03,489 INFO L138 BoogieDeclarations]: Found implementation of procedure tdr_write [2019-10-13 22:19:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure phy2rxts [2019-10-13 22:19:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure phy2txts [2019-10-13 22:19:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_output [2019-10-13 22:19:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ptp_dp83640_adjfreq [2019-10-13 22:19:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ptp_dp83640_adjtime [2019-10-13 22:19:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ptp_dp83640_gettime [2019-10-13 22:19:03,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ptp_dp83640_settime [2019-10-13 22:19:03,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ptp_dp83640_enable [2019-10-13 22:19:03,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ptp_dp83640_verify [2019-10-13 22:19:03,491 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_status_frames [2019-10-13 22:19:03,491 INFO L138 BoogieDeclarations]: Found implementation of procedure is_status_frame [2019-10-13 22:19:03,491 INFO L138 BoogieDeclarations]: Found implementation of procedure expired [2019-10-13 22:19:03,492 INFO L138 BoogieDeclarations]: Found implementation of procedure prune_rx_ts [2019-10-13 22:19:03,492 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_broadcast [2019-10-13 22:19:03,492 INFO L138 BoogieDeclarations]: Found implementation of procedure recalibrate [2019-10-13 22:19:03,492 INFO L138 BoogieDeclarations]: Found implementation of procedure exts_chan_to_edata [2019-10-13 22:19:03,492 INFO L138 BoogieDeclarations]: Found implementation of procedure decode_evnt [2019-10-13 22:19:03,493 INFO L138 BoogieDeclarations]: Found implementation of procedure decode_rxts [2019-10-13 22:19:03,493 INFO L138 BoogieDeclarations]: Found implementation of procedure decode_txts [2019-10-13 22:19:03,493 INFO L138 BoogieDeclarations]: Found implementation of procedure decode_status_frame [2019-10-13 22:19:03,493 INFO L138 BoogieDeclarations]: Found implementation of procedure is_sync [2019-10-13 22:19:03,493 INFO L138 BoogieDeclarations]: Found implementation of procedure match [2019-10-13 22:19:03,494 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_free_clocks [2019-10-13 22:19:03,494 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_clock_init [2019-10-13 22:19:03,494 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_this_phy [2019-10-13 22:19:03,494 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_clock_get [2019-10-13 22:19:03,494 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_clock_get_bus [2019-10-13 22:19:03,494 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_clock_put [2019-10-13 22:19:03,494 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_probe [2019-10-13 22:19:03,495 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_remove [2019-10-13 22:19:03,495 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_config_init [2019-10-13 22:19:03,496 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_ack_interrupt [2019-10-13 22:19:03,496 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_config_intr [2019-10-13 22:19:03,497 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_hwtstamp [2019-10-13 22:19:03,497 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_timestamp_work [2019-10-13 22:19:03,497 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_rxtstamp [2019-10-13 22:19:03,497 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_txtstamp [2019-10-13 22:19:03,497 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_ts_info [2019-10-13 22:19:03,498 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_init [2019-10-13 22:19:03,498 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_exit [2019-10-13 22:19:03,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_phy_driver_1 [2019-10-13 22:19:03,499 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:19:03,499 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-13 22:19:03,499 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-13 22:19:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-10-13 22:19:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-10-13 22:19:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-10-13 22:19:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-10-13 22:19:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-10-13 22:19:03,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_dequeue_12 [2019-10-13 22:19:03,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_13 [2019-10-13 22:19:03,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_dequeue_14 [2019-10-13 22:19:03,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_dequeue_15 [2019-10-13 22:19:03,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_ni_16 [2019-10-13 22:19:03,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_dequeue_17 [2019-10-13 22:19:03,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_18 [2019-10-13 22:19:03,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-10-13 22:19:03,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-10-13 22:19:03,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-10-13 22:19:03,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-10-13 22:19:03,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-10-13 22:19:03,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 22:19:03,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 22:19:03,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 22:19:03,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 22:19:03,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-10-13 22:19:03,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 22:19:03,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-10-13 22:19:03,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-10-13 22:19:03,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-10-13 22:19:03,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-10-13 22:19:03,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-10-13 22:19:03,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 22:19:03,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-13 22:19:03,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-10-13 22:19:03,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2019-10-13 22:19:03,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2019-10-13 22:19:03,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-13 22:19:03,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2019-10-13 22:19:03,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-13 22:19:03,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 22:19:03,507 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-13 22:19:03,508 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-13 22:19:03,508 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-13 22:19:03,508 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-13 22:19:03,508 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2019-10-13 22:19:03,508 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_mc_add [2019-10-13 22:19:03,508 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_mc_del [2019-10-13 22:19:03,509 INFO L138 BoogieDeclarations]: Found implementation of procedure genphy_config_aneg [2019-10-13 22:19:03,509 INFO L138 BoogieDeclarations]: Found implementation of procedure genphy_read_status [2019-10-13 22:19:03,510 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device [2019-10-13 22:19:03,513 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-13 22:19:03,514 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2019-10-13 22:19:03,514 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_read [2019-10-13 22:19:03,514 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_write [2019-10-13 22:19:03,515 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-13 22:19:03,515 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2019-10-13 22:19:03,515 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-13 22:19:03,515 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 22:19:03,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_timespec [2019-10-13 22:19:03,516 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_driver_register [2019-10-13 22:19:03,523 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_driver_unregister [2019-10-13 22:19:03,524 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 22:19:03,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ptp_clock_event [2019-10-13 22:19:03,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ptp_clock_index [2019-10-13 22:19:03,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ptp_clock_register [2019-10-13 22:19:03,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ptp_clock_unregister [2019-10-13 22:19:03,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ptp_find_pin [2019-10-13 22:19:03,524 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2019-10-13 22:19:03,525 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2019-10-13 22:19:03,525 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_complete_tx_timestamp [2019-10-13 22:19:03,525 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2019-10-13 22:19:03,525 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 22:19:03,526 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 22:19:03,526 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 22:19:03,526 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 22:19:03,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:19:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 22:19:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2019-10-13 22:19:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 22:19:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2019-10-13 22:19:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-13 22:19:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-13 22:19:03,528 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-13 22:19:03,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 22:19:03,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 22:19:03,528 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-13 22:19:03,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 22:19:03,528 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-13 22:19:03,528 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-10-13 22:19:03,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 22:19:03,529 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-13 22:19:03,529 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2019-10-13 22:19:03,529 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-13 22:19:03,529 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2019-10-13 22:19:03,529 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-10-13 22:19:03,529 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 22:19:03,529 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-10-13 22:19:03,530 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2019-10-13 22:19:03,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:19:03,530 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64 [2019-10-13 22:19:03,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:19:03,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:19:03,530 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-13 22:19:03,531 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-13 22:19:03,531 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2019-10-13 22:19:03,531 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 22:19:03,531 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-13 22:19:03,531 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-13 22:19:03,531 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 22:19:03,532 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-13 22:19:03,532 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2019-10-13 22:19:03,532 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-13 22:19:03,532 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-13 22:19:03,532 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 22:19:03,532 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_timespec [2019-10-13 22:19:03,532 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_ktime [2019-10-13 22:19:03,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:19:03,533 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2019-10-13 22:19:03,533 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2019-10-13 22:19:03,533 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2019-10-13 22:19:03,533 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2019-10-13 22:19:03,533 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2019-10-13 22:19:03,533 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 22:19:03,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 22:19:03,534 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 22:19:03,534 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 22:19:03,534 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 22:19:03,534 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-13 22:19:03,534 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-13 22:19:03,534 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-13 22:19:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-10-13 22:19:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-13 22:19:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-13 22:19:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure get_device [2019-10-13 22:19:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2019-10-13 22:19:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-10-13 22:19:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-10-13 22:19:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-10-13 22:19:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-10-13 22:19:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_13 [2019-10-13 22:19:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_18 [2019-10-13 22:19:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-10-13 22:19:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2019-10-13 22:19:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure skb_hwtstamps [2019-10-13 22:19:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_head_init [2019-10-13 22:19:03,537 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2019-10-13 22:19:03,537 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2019-10-13 22:19:03,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_dequeue_12 [2019-10-13 22:19:03,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_dequeue_14 [2019-10-13 22:19:03,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_dequeue_15 [2019-10-13 22:19:03,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_dequeue_17 [2019-10-13 22:19:03,537 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2019-10-13 22:19:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure skb_mac_header [2019-10-13 22:19:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure skb_complete_tx_timestamp [2019-10-13 22:19:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-10-13 22:19:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-10-13 22:19:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-10-13 22:19:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 22:19:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 22:19:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:19:03,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 22:19:03,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 22:19:03,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:19:03,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 22:19:03,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 22:19:03,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 22:19:03,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 22:19:03,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 22:19:03,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 22:19:03,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 22:19:03,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 22:19:03,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 22:19:03,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_phy_driver_1 [2019-10-13 22:19:03,540 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hdr [2019-10-13 22:19:03,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_ni_16 [2019-10-13 22:19:03,541 INFO L130 BoogieDeclarations]: Found specification of procedure dev_mc_add [2019-10-13 22:19:03,542 INFO L130 BoogieDeclarations]: Found specification of procedure dev_mc_del [2019-10-13 22:19:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_read [2019-10-13 22:19:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_write [2019-10-13 22:19:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read [2019-10-13 22:19:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write [2019-10-13 22:19:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure genphy_config_aneg [2019-10-13 22:19:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure genphy_read_status [2019-10-13 22:19:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure phy_driver_unregister [2019-10-13 22:19:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure phy_driver_register [2019-10-13 22:19:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure ptp_clock_register [2019-10-13 22:19:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure ptp_clock_unregister [2019-10-13 22:19:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure ptp_clock_event [2019-10-13 22:19:03,551 INFO L130 BoogieDeclarations]: Found specification of procedure ptp_clock_index [2019-10-13 22:19:03,551 INFO L130 BoogieDeclarations]: Found specification of procedure ptp_find_pin [2019-10-13 22:19:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_gpio_defaults [2019-10-13 22:19:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure rx_timestamp_work [2019-10-13 22:19:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure broadcast_write [2019-10-13 22:19:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure ext_read [2019-10-13 22:19:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure ext_write [2019-10-13 22:19:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure tdr_write [2019-10-13 22:19:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure phy2rxts [2019-10-13 22:19:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure phy2txts [2019-10-13 22:19:03,553 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_output [2019-10-13 22:19:03,553 INFO L130 BoogieDeclarations]: Found specification of procedure ptp_dp83640_adjfreq [2019-10-13 22:19:03,553 INFO L130 BoogieDeclarations]: Found specification of procedure ptp_dp83640_adjtime [2019-10-13 22:19:03,553 INFO L130 BoogieDeclarations]: Found specification of procedure ptp_dp83640_gettime [2019-10-13 22:19:03,553 INFO L130 BoogieDeclarations]: Found specification of procedure ptp_dp83640_settime [2019-10-13 22:19:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure ptp_dp83640_enable [2019-10-13 22:19:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure ptp_dp83640_verify [2019-10-13 22:19:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure enable_status_frames [2019-10-13 22:19:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure is_status_frame [2019-10-13 22:19:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure expired [2019-10-13 22:19:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure prune_rx_ts [2019-10-13 22:19:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure enable_broadcast [2019-10-13 22:19:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure recalibrate [2019-10-13 22:19:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure exts_chan_to_edata [2019-10-13 22:19:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure decode_evnt [2019-10-13 22:19:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure decode_rxts [2019-10-13 22:19:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure decode_txts [2019-10-13 22:19:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 22:19:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure decode_status_frame [2019-10-13 22:19:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure is_sync [2019-10-13 22:19:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure match [2019-10-13 22:19:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_free_clocks [2019-10-13 22:19:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_clock_init [2019-10-13 22:19:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure choose_this_phy [2019-10-13 22:19:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_clock_get [2019-10-13 22:19:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_clock_get_bus [2019-10-13 22:19:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_clock_put [2019-10-13 22:19:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_probe [2019-10-13 22:19:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_remove [2019-10-13 22:19:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_config_init [2019-10-13 22:19:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_ack_interrupt [2019-10-13 22:19:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_config_intr [2019-10-13 22:19:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_hwtstamp [2019-10-13 22:19:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_rxtstamp [2019-10-13 22:19:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_txtstamp [2019-10-13 22:19:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_ts_info [2019-10-13 22:19:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_init [2019-10-13 22:19:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_exit [2019-10-13 22:19:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 22:19:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 22:19:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:19:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-10-13 22:19:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-10-13 22:19:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-10-13 22:19:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-10-13 22:19:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-10-13 22:19:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 22:19:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 22:19:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-10-13 22:19:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-10-13 22:19:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-10-13 22:19:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-13 22:19:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 22:19:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 22:19:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:19:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 22:19:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 22:19:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:19:04,784 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 22:19:28,623 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:19:28,623 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 22:19:28,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:19:28 BoogieIcfgContainer [2019-10-13 22:19:28,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:19:28,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:19:28,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:19:28,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:19:28,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:19:00" (1/3) ... [2019-10-13 22:19:28,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1685b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:19:28, skipping insertion in model container [2019-10-13 22:19:28,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:03" (2/3) ... [2019-10-13 22:19:28,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1685b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:19:28, skipping insertion in model container [2019-10-13 22:19:28,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:19:28" (3/3) ... [2019-10-13 22:19:28,635 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i [2019-10-13 22:19:28,645 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:19:28,655 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:19:28,664 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:19:28,697 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:19:28,697 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:19:28,697 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:19:28,697 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:19:28,697 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:19:28,697 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:19:28,698 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:19:28,698 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:19:28,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states. [2019-10-13 22:19:28,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-13 22:19:28,756 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:19:28,757 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 22:19:28,759 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:19:28,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:19:28,763 INFO L82 PathProgramCache]: Analyzing trace with hash -872935376, now seen corresponding path program 1 times [2019-10-13 22:19:28,770 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:19:28,771 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624347925] [2019-10-13 22:19:28,771 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:19:28,771 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:19:28,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:19:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:19:29,478 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 22:19:29,479 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624347925] [2019-10-13 22:19:29,480 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:19:29,480 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 22:19:29,480 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028819534] [2019-10-13 22:19:29,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 22:19:29,486 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:19:29,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 22:19:29,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 22:19:29,505 INFO L87 Difference]: Start difference. First operand 1002 states. Second operand 6 states. [2019-10-13 22:19:31,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:19:31,242 INFO L93 Difference]: Finished difference Result 2562 states and 3381 transitions. [2019-10-13 22:19:31,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 22:19:31,244 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2019-10-13 22:19:31,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:19:31,277 INFO L225 Difference]: With dead ends: 2562 [2019-10-13 22:19:31,277 INFO L226 Difference]: Without dead ends: 1650 [2019-10-13 22:19:31,289 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 22:19:31,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2019-10-13 22:19:31,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1650. [2019-10-13 22:19:31,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1650 states. [2019-10-13 22:19:31,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1650 states to 1650 states and 2153 transitions. [2019-10-13 22:19:31,608 INFO L78 Accepts]: Start accepts. Automaton has 1650 states and 2153 transitions. Word has length 50 [2019-10-13 22:19:31,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:19:31,609 INFO L462 AbstractCegarLoop]: Abstraction has 1650 states and 2153 transitions. [2019-10-13 22:19:31,609 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 22:19:31,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1650 states and 2153 transitions. [2019-10-13 22:19:31,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-10-13 22:19:31,628 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:19:31,628 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 22:19:31,628 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:19:31,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:19:31,629 INFO L82 PathProgramCache]: Analyzing trace with hash -91171368, now seen corresponding path program 1 times [2019-10-13 22:19:31,631 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:19:31,631 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892588278] [2019-10-13 22:19:31,632 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:19:31,632 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:19:31,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:19:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:19:31,826 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 22:19:31,827 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892588278] [2019-10-13 22:19:31,827 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:19:31,827 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:19:31,827 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785747377] [2019-10-13 22:19:31,830 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:19:31,830 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:19:31,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:19:31,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:19:31,831 INFO L87 Difference]: Start difference. First operand 1650 states and 2153 transitions. Second operand 3 states. [2019-10-13 22:19:32,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:19:32,051 INFO L93 Difference]: Finished difference Result 3390 states and 4414 transitions. [2019-10-13 22:19:32,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:19:32,052 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2019-10-13 22:19:32,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:19:32,067 INFO L225 Difference]: With dead ends: 3390 [2019-10-13 22:19:32,068 INFO L226 Difference]: Without dead ends: 1756 [2019-10-13 22:19:32,078 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 22:19:32,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1756 states. [2019-10-13 22:19:32,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1756 to 1745. [2019-10-13 22:19:32,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1745 states. [2019-10-13 22:19:32,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2267 transitions. [2019-10-13 22:19:32,190 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2267 transitions. Word has length 109 [2019-10-13 22:19:32,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:19:32,191 INFO L462 AbstractCegarLoop]: Abstraction has 1745 states and 2267 transitions. [2019-10-13 22:19:32,191 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:19:32,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2267 transitions. [2019-10-13 22:19:32,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-10-13 22:19:32,200 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:19:32,200 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2019-10-13 22:19:32,201 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:19:32,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:19:32,201 INFO L82 PathProgramCache]: Analyzing trace with hash -794050690, now seen corresponding path program 1 times [2019-10-13 22:19:32,202 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:19:32,202 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654656410] [2019-10-13 22:19:32,202 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:19:32,202 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:19:32,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:19:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:19:32,401 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 22:19:32,402 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654656410] [2019-10-13 22:19:32,402 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:19:32,402 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:19:32,403 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926355597] [2019-10-13 22:19:32,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:19:32,404 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:19:32,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:19:32,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:19:32,405 INFO L87 Difference]: Start difference. First operand 1745 states and 2267 transitions. Second operand 3 states. [2019-10-13 22:19:32,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:19:32,841 INFO L93 Difference]: Finished difference Result 4654 states and 6044 transitions. [2019-10-13 22:19:32,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:19:32,842 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 141 [2019-10-13 22:19:32,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:19:32,874 INFO L225 Difference]: With dead ends: 4654 [2019-10-13 22:19:32,874 INFO L226 Difference]: Without dead ends: 2933 [2019-10-13 22:19:32,885 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 22:19:32,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2019-10-13 22:19:33,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 2922. [2019-10-13 22:19:33,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2922 states. [2019-10-13 22:19:33,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2922 states to 2922 states and 3753 transitions. [2019-10-13 22:19:33,084 INFO L78 Accepts]: Start accepts. Automaton has 2922 states and 3753 transitions. Word has length 141 [2019-10-13 22:19:33,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:19:33,085 INFO L462 AbstractCegarLoop]: Abstraction has 2922 states and 3753 transitions. [2019-10-13 22:19:33,085 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:19:33,085 INFO L276 IsEmpty]: Start isEmpty. Operand 2922 states and 3753 transitions. [2019-10-13 22:19:33,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-10-13 22:19:33,097 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:19:33,097 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2019-10-13 22:19:33,098 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:19:33,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:19:33,098 INFO L82 PathProgramCache]: Analyzing trace with hash -79710416, now seen corresponding path program 1 times [2019-10-13 22:19:33,099 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:19:33,100 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917378576] [2019-10-13 22:19:33,100 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:19:33,100 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:19:33,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:19:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:19:33,316 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 22:19:33,317 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917378576] [2019-10-13 22:19:33,317 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:19:33,317 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:19:33,317 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118631956] [2019-10-13 22:19:33,318 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:19:33,318 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:19:33,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:19:33,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:19:33,319 INFO L87 Difference]: Start difference. First operand 2922 states and 3753 transitions. Second operand 3 states. [2019-10-13 22:19:33,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:19:33,429 INFO L93 Difference]: Finished difference Result 4444 states and 5716 transitions. [2019-10-13 22:19:33,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:19:33,429 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 141 [2019-10-13 22:19:33,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:19:33,449 INFO L225 Difference]: With dead ends: 4444 [2019-10-13 22:19:33,450 INFO L226 Difference]: Without dead ends: 2930 [2019-10-13 22:19:33,457 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 22:19:33,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2019-10-13 22:19:33,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 2926. [2019-10-13 22:19:33,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2926 states. [2019-10-13 22:19:33,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2926 states to 2926 states and 3757 transitions. [2019-10-13 22:19:33,597 INFO L78 Accepts]: Start accepts. Automaton has 2926 states and 3757 transitions. Word has length 141 [2019-10-13 22:19:33,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:19:33,598 INFO L462 AbstractCegarLoop]: Abstraction has 2926 states and 3757 transitions. [2019-10-13 22:19:33,598 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:19:33,598 INFO L276 IsEmpty]: Start isEmpty. Operand 2926 states and 3757 transitions. [2019-10-13 22:19:33,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-13 22:19:33,607 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:19:33,607 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2019-10-13 22:19:33,607 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:19:33,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:19:33,608 INFO L82 PathProgramCache]: Analyzing trace with hash -689389655, now seen corresponding path program 1 times [2019-10-13 22:19:33,608 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:19:33,608 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611746671] [2019-10-13 22:19:33,608 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:19:33,608 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:19:33,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:19:33,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:19:33,822 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 22:19:33,822 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611746671] [2019-10-13 22:19:33,822 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:19:33,823 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:19:33,823 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277341906] [2019-10-13 22:19:33,824 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:19:33,824 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:19:33,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:19:33,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:19:33,825 INFO L87 Difference]: Start difference. First operand 2926 states and 3757 transitions. Second operand 3 states. [2019-10-13 22:19:34,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:19:34,125 INFO L93 Difference]: Finished difference Result 5785 states and 7441 transitions. [2019-10-13 22:19:34,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:19:34,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-10-13 22:19:34,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:19:34,147 INFO L225 Difference]: With dead ends: 5785 [2019-10-13 22:19:34,147 INFO L226 Difference]: Without dead ends: 2870 [2019-10-13 22:19:34,161 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 22:19:34,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states. [2019-10-13 22:19:34,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 2870. [2019-10-13 22:19:34,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2870 states. [2019-10-13 22:19:34,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2870 states to 2870 states and 3680 transitions. [2019-10-13 22:19:34,310 INFO L78 Accepts]: Start accepts. Automaton has 2870 states and 3680 transitions. Word has length 142 [2019-10-13 22:19:34,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:19:34,310 INFO L462 AbstractCegarLoop]: Abstraction has 2870 states and 3680 transitions. [2019-10-13 22:19:34,311 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:19:34,311 INFO L276 IsEmpty]: Start isEmpty. Operand 2870 states and 3680 transitions. [2019-10-13 22:19:34,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 22:19:34,321 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:19:34,321 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2019-10-13 22:19:34,322 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:19:34,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:19:34,322 INFO L82 PathProgramCache]: Analyzing trace with hash -2060885248, now seen corresponding path program 1 times [2019-10-13 22:19:34,322 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:19:34,322 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096967169] [2019-10-13 22:19:34,323 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:19:34,323 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:19:34,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:19:34,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:19:34,698 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-13 22:19:34,698 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096967169] [2019-10-13 22:19:34,699 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:19:34,699 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 22:19:34,699 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027721504] [2019-10-13 22:19:34,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 22:19:34,700 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:19:34,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 22:19:34,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-10-13 22:19:34,701 INFO L87 Difference]: Start difference. First operand 2870 states and 3680 transitions. Second operand 9 states.