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-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 02:57:25,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:57:25,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:57:25,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:57:25,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:57:25,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:57:25,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:57:25,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:57:25,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:57:25,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:57:25,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:57:25,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:57:25,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:57:25,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:57:25,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:57:25,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:57:25,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:57:25,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:57:25,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:57:25,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:57:25,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:57:25,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:57:25,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:57:25,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:57:25,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 02:57:25,073 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 02:57:25,073 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 02:57:25,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 02:57:25,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 02:57:25,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 02:57:25,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 02:57:25,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 02:57:25,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 02:57:25,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 02:57:25,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 02:57:25,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 02:57:25,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 02:57:25,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 02:57:25,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:57:25,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:57:25,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:57:25,090 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 02:57:25,109 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:57:25,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:57:25,111 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:57:25,111 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:57:25,111 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:57:25,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:57:25,112 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:57:25,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:57:25,112 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:57:25,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:57:25,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:57:25,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:57:25,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:57:25,113 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:57:25,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:57:25,113 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:57:25,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:57:25,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:57:25,114 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:57:25,114 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:57:25,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:57:25,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:57:25,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:57:25,115 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:57:25,115 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:57:25,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:57:25,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:57:25,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:57:25,116 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 [2019-10-15 02:57:25,404 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:57:25,421 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:57:25,425 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:57:25,426 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:57:25,427 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:57:25,427 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-15 02:57:25,496 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a86d2a1cf/e4f84c8f00c24026a69c7ba59f1e96e6/FLAG6ce7c416b [2019-10-15 02:57:26,303 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:57:26,306 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-15 02:57:26,346 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a86d2a1cf/e4f84c8f00c24026a69c7ba59f1e96e6/FLAG6ce7c416b [2019-10-15 02:57:26,836 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a86d2a1cf/e4f84c8f00c24026a69c7ba59f1e96e6 [2019-10-15 02:57:26,845 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:57:26,846 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:57:26,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:57:26,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:57:26,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:57:26,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:57:26" (1/1) ... [2019-10-15 02:57:26,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d449b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:57:26, skipping insertion in model container [2019-10-15 02:57:26,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:57:26" (1/1) ... [2019-10-15 02:57:26,861 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:57:26,981 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:57:28,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:57:28,544 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:57:28,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:57:29,226 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:57:29,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:57:29 WrapperNode [2019-10-15 02:57:29,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:57:29,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:57:29,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:57:29,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:57:29,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:57:29" (1/1) ... [2019-10-15 02:57:29,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:57:29" (1/1) ... [2019-10-15 02:57:29,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:57:29" (1/1) ... [2019-10-15 02:57:29,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:57:29" (1/1) ... [2019-10-15 02:57:29,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:57:29" (1/1) ... [2019-10-15 02:57:29,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:57:29" (1/1) ... [2019-10-15 02:57:29,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:57:29" (1/1) ... [2019-10-15 02:57:29,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:57:29,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:57:29,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:57:29,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:57:29,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:57:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:57:29,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:57:29,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:57:29,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-15 02:57:29,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2019-10-15 02:57:29,652 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-15 02:57:29,653 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-10-15 02:57:29,654 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-10-15 02:57:29,655 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-10-15 02:57:29,655 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-15 02:57:29,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-15 02:57:29,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-15 02:57:29,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-15 02:57:29,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-15 02:57:29,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-15 02:57:29,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-15 02:57:29,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-15 02:57:29,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-15 02:57:29,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2019-10-15 02:57:29,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-15 02:57:29,663 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-15 02:57:29,663 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-15 02:57:29,664 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-15 02:57:29,664 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2019-10-15 02:57:29,664 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-15 02:57:29,664 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2019-10-15 02:57:29,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 02:57:29,664 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 02:57:29,665 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-15 02:57:29,665 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-15 02:57:29,665 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2019-10-15 02:57:29,665 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-10-15 02:57:29,665 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2019-10-15 02:57:29,665 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-10-15 02:57:29,665 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice [2019-10-15 02:57:29,666 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2019-10-15 02:57:29,666 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2019-10-15 02:57:29,666 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2019-10-15 02:57:29,667 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2019-10-15 02:57:29,667 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2019-10-15 02:57:29,667 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2019-10-15 02:57:29,667 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_queue_stopped [2019-10-15 02:57:29,667 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2019-10-15 02:57:29,668 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2019-10-15 02:57:29,668 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc_bufs [2019-10-15 02:57:29,668 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2019-10-15 02:57:29,668 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_realloc_bufs [2019-10-15 02:57:29,668 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_lock [2019-10-15 02:57:29,668 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2019-10-15 02:57:29,669 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2019-10-15 02:57:29,669 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_encaps [2019-10-15 02:57:29,669 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_write_wakeup [2019-10-15 02:57:29,669 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_tx_timeout [2019-10-15 02:57:29,669 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_xmit [2019-10-15 02:57:29,669 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_close [2019-10-15 02:57:29,669 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_open [2019-10-15 02:57:29,670 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_change_mtu [2019-10-15 02:57:29,670 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_get_stats64 [2019-10-15 02:57:29,670 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_init [2019-10-15 02:57:29,670 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_uninit [2019-10-15 02:57:29,670 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_netdev [2019-10-15 02:57:29,671 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_setup [2019-10-15 02:57:29,671 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_receive_buf [2019-10-15 02:57:29,671 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_sync [2019-10-15 02:57:29,671 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc [2019-10-15 02:57:29,671 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_open [2019-10-15 02:57:29,672 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2019-10-15 02:57:29,672 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_hangup [2019-10-15 02:57:29,672 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc [2019-10-15 02:57:29,672 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc [2019-10-15 02:57:29,672 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc6 [2019-10-15 02:57:29,672 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc6 [2019-10-15 02:57:29,673 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2019-10-15 02:57:29,673 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_compat_ioctl [2019-10-15 02:57:29,673 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2019-10-15 02:57:29,674 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_init [2019-10-15 02:57:29,674 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_exit [2019-10-15 02:57:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_outfill [2019-10-15 02:57:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_keepalive [2019-10-15 02:57:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_3 [2019-10-15 02:57:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_4 [2019-10-15 02:57:29,676 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2019-10-15 02:57:29,676 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2019-10-15 02:57:29,676 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2019-10-15 02:57:29,676 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_2 [2019-10-15 02:57:29,677 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2019-10-15 02:57:29,677 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2019-10-15 02:57:29,677 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2019-10-15 02:57:29,678 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2019-10-15 02:57:29,678 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:57:29,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_1 [2019-10-15 02:57:29,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_2 [2019-10-15 02:57:29,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_sl_alloc_bufs_3 [2019-10-15 02:57:29,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdevice_4 [2019-10-15 02:57:29,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_5 [2019-10-15 02:57:29,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_6 [2019-10-15 02:57:29,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_7 [2019-10-15 02:57:29,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_8 [2019-10-15 02:57:29,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_9 [2019-10-15 02:57:29,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_10 [2019-10-15 02:57:29,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_11 [2019-10-15 02:57:29,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_12 [2019-10-15 02:57:29,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_13 [2019-10-15 02:57:29,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_14 [2019-10-15 02:57:29,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_15 [2019-10-15 02:57:29,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_16 [2019-10-15 02:57:29,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_17 [2019-10-15 02:57:29,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_slip_open_18 [2019-10-15 02:57:29,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-15 02:57:29,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_callback_ret_val [2019-10-15 02:57:29,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2019-10-15 02:57:29,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-15 02:57:29,682 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-15 02:57:29,682 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-15 02:57:29,682 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2019-10-15 02:57:29,682 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-15 02:57:29,682 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2019-10-15 02:57:29,683 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2019-10-15 02:57:29,683 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2019-10-15 02:57:29,683 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-10-15 02:57:29,683 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2019-10-15 02:57:29,684 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2019-10-15 02:57:29,684 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-10-15 02:57:29,684 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2019-10-15 02:57:29,684 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2019-10-15 02:57:29,685 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2019-10-15 02:57:29,685 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-10-15 02:57:29,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 02:57:29,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 02:57:29,686 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-15 02:57:29,686 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-10-15 02:57:29,686 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2019-10-15 02:57:29,686 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2019-10-15 02:57:29,687 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2019-10-15 02:57:29,688 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-15 02:57:29,691 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdevice [2019-10-15 02:57:29,691 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2019-10-15 02:57:29,691 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2019-10-15 02:57:29,691 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-15 02:57:29,692 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_compress [2019-10-15 02:57:29,692 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2019-10-15 02:57:29,692 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_init [2019-10-15 02:57:29,693 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_remember [2019-10-15 02:57:29,693 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_uncompress [2019-10-15 02:57:29,693 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_chars_in_buffer [2019-10-15 02:57:29,700 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2019-10-15 02:57:29,701 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2019-10-15 02:57:29,701 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_mode_ioctl [2019-10-15 02:57:29,701 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_ldisc [2019-10-15 02:57:29,701 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_ldisc [2019-10-15 02:57:29,701 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-10-15 02:57:29,701 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice_queue [2019-10-15 02:57:29,701 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-15 02:57:29,702 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 02:57:29,702 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 02:57:29,702 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-15 02:57:29,702 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-15 02:57:29,702 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-15 02:57:29,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:57:29,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-15 02:57:29,703 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-15 02:57:29,703 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-10-15 02:57:29,703 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-10-15 02:57:29,703 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-10-15 02:57:29,703 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-15 02:57:29,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 02:57:29,703 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-15 02:57:29,703 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-15 02:57:29,704 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-15 02:57:29,704 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-15 02:57:29,704 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 02:57:29,704 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 02:57:29,704 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-15 02:57:29,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 02:57:29,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 02:57:29,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 02:57:29,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 02:57:29,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-15 02:57:29,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 02:57:29,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-15 02:57:29,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-15 02:57:29,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-15 02:57:29,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-15 02:57:29,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-15 02:57:29,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-15 02:57:29,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-15 02:57:29,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-15 02:57:29,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-15 02:57:29,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2019-10-15 02:57:29,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_callback_ret_val [2019-10-15 02:57:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-15 02:57:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-15 02:57:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-10-15 02:57:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-15 02:57:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-15 02:57:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-15 02:57:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2019-10-15 02:57:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-15 02:57:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2019-10-15 02:57:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-15 02:57:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-15 02:57:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2019-10-15 02:57:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-15 02:57:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2019-10-15 02:57:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2019-10-15 02:57:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2019-10-15 02:57:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_2 [2019-10-15 02:57:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_8 [2019-10-15 02:57:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_10 [2019-10-15 02:57:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_12 [2019-10-15 02:57:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_14 [2019-10-15 02:57:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_16 [2019-10-15 02:57:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-10-15 02:57:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_7 [2019-10-15 02:57:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_9 [2019-10-15 02:57:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_11 [2019-10-15 02:57:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_13 [2019-10-15 02:57:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_15 [2019-10-15 02:57:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_17 [2019-10-15 02:57:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2019-10-15 02:57:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-10-15 02:57:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_1 [2019-10-15 02:57:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_5 [2019-10-15 02:57:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_6 [2019-10-15 02:57:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 02:57:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 02:57:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 02:57:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-15 02:57:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_3 [2019-10-15 02:57:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_4 [2019-10-15 02:57:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2019-10-15 02:57:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2019-10-15 02:57:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2019-10-15 02:57:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_2 [2019-10-15 02:57:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2019-10-15 02:57:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2019-10-15 02:57:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2019-10-15 02:57:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2019-10-15 02:57:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-15 02:57:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-15 02:57:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-10-15 02:57:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure tty_chars_in_buffer [2019-10-15 02:57:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2019-10-15 02:57:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure tty_mode_ioctl [2019-10-15 02:57:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2019-10-15 02:57:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_ldisc [2019-10-15 02:57:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_ldisc [2019-10-15 02:57:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2019-10-15 02:57:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-15 02:57:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2019-10-15 02:57:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 02:57:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 02:57:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2019-10-15 02:57:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-10-15 02:57:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2019-10-15 02:57:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-10-15 02:57:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2019-10-15 02:57:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdevice [2019-10-15 02:57:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdevice_4 [2019-10-15 02:57:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice_queue [2019-10-15 02:57:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice [2019-10-15 02:57:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-10-15 02:57:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2019-10-15 02:57:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2019-10-15 02:57:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2019-10-15 02:57:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2019-10-15 02:57:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2019-10-15 02:57:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2019-10-15 02:57:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2019-10-15 02:57:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 02:57:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2019-10-15 02:57:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_queue_stopped [2019-10-15 02:57:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2019-10-15 02:57:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2019-10-15 02:57:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2019-10-15 02:57:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2019-10-15 02:57:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2019-10-15 02:57:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-10-15 02:57:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2019-10-15 02:57:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2019-10-15 02:57:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_init [2019-10-15 02:57:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2019-10-15 02:57:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_compress [2019-10-15 02:57:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_uncompress [2019-10-15 02:57:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_remember [2019-10-15 02:57:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc [2019-10-15 02:57:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc [2019-10-15 02:57:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc6 [2019-10-15 02:57:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc6 [2019-10-15 02:57:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure sl_keepalive [2019-10-15 02:57:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure sl_outfill [2019-10-15 02:57:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2019-10-15 02:57:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc_bufs [2019-10-15 02:57:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_sl_alloc_bufs_3 [2019-10-15 02:57:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2019-10-15 02:57:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-15 02:57:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure sl_realloc_bufs [2019-10-15 02:57:29,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-15 02:57:29,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 02:57:29,727 INFO L130 BoogieDeclarations]: Found specification of procedure sl_lock [2019-10-15 02:57:29,727 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2019-10-15 02:57:29,727 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2019-10-15 02:57:29,727 INFO L130 BoogieDeclarations]: Found specification of procedure sl_encaps [2019-10-15 02:57:29,727 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-15 02:57:29,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:57:29,728 INFO L130 BoogieDeclarations]: Found specification of procedure slip_write_wakeup [2019-10-15 02:57:29,728 INFO L130 BoogieDeclarations]: Found specification of procedure sl_tx_timeout [2019-10-15 02:57:29,728 INFO L130 BoogieDeclarations]: Found specification of procedure sl_xmit [2019-10-15 02:57:29,728 INFO L130 BoogieDeclarations]: Found specification of procedure sl_close [2019-10-15 02:57:29,728 INFO L130 BoogieDeclarations]: Found specification of procedure sl_open [2019-10-15 02:57:29,728 INFO L130 BoogieDeclarations]: Found specification of procedure sl_change_mtu [2019-10-15 02:57:29,728 INFO L130 BoogieDeclarations]: Found specification of procedure sl_get_stats64 [2019-10-15 02:57:29,728 INFO L130 BoogieDeclarations]: Found specification of procedure sl_init [2019-10-15 02:57:29,728 INFO L130 BoogieDeclarations]: Found specification of procedure sl_uninit [2019-10-15 02:57:29,729 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_netdev [2019-10-15 02:57:29,729 INFO L130 BoogieDeclarations]: Found specification of procedure sl_setup [2019-10-15 02:57:29,729 INFO L130 BoogieDeclarations]: Found specification of procedure slip_receive_buf [2019-10-15 02:57:29,729 INFO L130 BoogieDeclarations]: Found specification of procedure sl_sync [2019-10-15 02:57:29,729 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc [2019-10-15 02:57:29,729 INFO L130 BoogieDeclarations]: Found specification of procedure slip_open [2019-10-15 02:57:29,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_slip_open_18 [2019-10-15 02:57:29,729 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2019-10-15 02:57:29,730 INFO L130 BoogieDeclarations]: Found specification of procedure slip_hangup [2019-10-15 02:57:29,730 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2019-10-15 02:57:29,730 INFO L130 BoogieDeclarations]: Found specification of procedure slip_compat_ioctl [2019-10-15 02:57:29,730 INFO L130 BoogieDeclarations]: Found specification of procedure slip_init [2019-10-15 02:57:29,730 INFO L130 BoogieDeclarations]: Found specification of procedure slip_exit [2019-10-15 02:57:29,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 02:57:29,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 02:57:29,730 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2019-10-15 02:57:29,730 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:57:29,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-15 02:57:29,731 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 02:57:29,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 02:57:29,731 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 02:57:29,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:57:29,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 02:57:29,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 02:57:29,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:57:29,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-15 02:57:29,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-15 02:57:29,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-15 02:57:29,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-15 02:57:30,778 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-15 02:57:38,679 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:57:38,679 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 02:57:38,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:57:38 BoogieIcfgContainer [2019-10-15 02:57:38,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:57:38,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:57:38,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:57:38,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:57:38,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:57:26" (1/3) ... [2019-10-15 02:57:38,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f8824e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:57:38, skipping insertion in model container [2019-10-15 02:57:38,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:57:29" (2/3) ... [2019-10-15 02:57:38,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f8824e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:57:38, skipping insertion in model container [2019-10-15 02:57:38,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:57:38" (3/3) ... [2019-10-15 02:57:38,688 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-15 02:57:38,698 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:57:38,707 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:57:38,718 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:57:38,752 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:57:38,752 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:57:38,752 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:57:38,752 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:57:38,752 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:57:38,752 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:57:38,753 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:57:38,753 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:57:38,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states. [2019-10-15 02:57:38,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-10-15 02:57:38,833 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:57:38,834 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:57:38,836 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:57:38,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:57:38,842 INFO L82 PathProgramCache]: Analyzing trace with hash 2060249647, now seen corresponding path program 1 times [2019-10-15 02:57:38,851 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:57:38,851 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872058977] [2019-10-15 02:57:38,852 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:57:38,852 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:57:38,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:57:39,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:57:39,573 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2019-10-15 02:57:39,574 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872058977] [2019-10-15 02:57:39,575 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:57:39,575 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:57:39,575 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102756062] [2019-10-15 02:57:39,580 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:57:39,580 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:57:39,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:57:39,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:57:39,597 INFO L87 Difference]: Start difference. First operand 1150 states. Second operand 3 states. [2019-10-15 02:57:39,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:57:39,930 INFO L93 Difference]: Finished difference Result 2852 states and 3787 transitions. [2019-10-15 02:57:39,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:57:39,932 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2019-10-15 02:57:39,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:57:39,979 INFO L225 Difference]: With dead ends: 2852 [2019-10-15 02:57:39,981 INFO L226 Difference]: Without dead ends: 1654 [2019-10-15 02:57:39,994 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:57:40,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2019-10-15 02:57:40,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1654. [2019-10-15 02:57:40,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1654 states. [2019-10-15 02:57:40,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2178 transitions. [2019-10-15 02:57:40,237 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2178 transitions. Word has length 140 [2019-10-15 02:57:40,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:57:40,239 INFO L462 AbstractCegarLoop]: Abstraction has 1654 states and 2178 transitions. [2019-10-15 02:57:40,239 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:57:40,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2178 transitions. [2019-10-15 02:57:40,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-15 02:57:40,262 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:57:40,263 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2019-10-15 02:57:40,263 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:57:40,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:57:40,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1710487695, now seen corresponding path program 1 times [2019-10-15 02:57:40,264 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:57:40,264 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154574505] [2019-10-15 02:57:40,264 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:57:40,264 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:57:40,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:57:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:57:40,911 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2019-10-15 02:57:40,912 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154574505] [2019-10-15 02:57:40,912 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:57:40,912 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 02:57:40,913 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285047574] [2019-10-15 02:57:40,917 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 02:57:40,917 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:57:40,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 02:57:40,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 02:57:40,918 INFO L87 Difference]: Start difference. First operand 1654 states and 2178 transitions. Second operand 10 states. [2019-10-15 02:57:41,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:57:41,131 INFO L93 Difference]: Finished difference Result 3273 states and 4310 transitions. [2019-10-15 02:57:41,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 02:57:41,132 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2019-10-15 02:57:41,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:57:41,144 INFO L225 Difference]: With dead ends: 3273 [2019-10-15 02:57:41,144 INFO L226 Difference]: Without dead ends: 1656 [2019-10-15 02:57:41,152 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 02:57:41,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2019-10-15 02:57:41,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1654. [2019-10-15 02:57:41,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1654 states. [2019-10-15 02:57:41,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2176 transitions. [2019-10-15 02:57:41,233 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2176 transitions. Word has length 195 [2019-10-15 02:57:41,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:57:41,235 INFO L462 AbstractCegarLoop]: Abstraction has 1654 states and 2176 transitions. [2019-10-15 02:57:41,235 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 02:57:41,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2176 transitions. [2019-10-15 02:57:41,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-15 02:57:41,242 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:57:41,243 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2019-10-15 02:57:41,243 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:57:41,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:57:41,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1492523137, now seen corresponding path program 1 times [2019-10-15 02:57:41,244 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:57:41,244 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911285338] [2019-10-15 02:57:41,244 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:57:41,244 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:57:41,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:57:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:57:41,581 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2019-10-15 02:57:41,582 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911285338] [2019-10-15 02:57:41,582 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:57:41,582 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 02:57:41,582 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174071652] [2019-10-15 02:57:41,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 02:57:41,585 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:57:41,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 02:57:41,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 02:57:41,585 INFO L87 Difference]: Start difference. First operand 1654 states and 2176 transitions. Second operand 7 states. [2019-10-15 02:57:41,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:57:41,699 INFO L93 Difference]: Finished difference Result 1667 states and 2189 transitions. [2019-10-15 02:57:41,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 02:57:41,700 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 201 [2019-10-15 02:57:41,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:57:41,709 INFO L225 Difference]: With dead ends: 1667 [2019-10-15 02:57:41,709 INFO L226 Difference]: Without dead ends: 1664 [2019-10-15 02:57:41,713 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-15 02:57:41,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2019-10-15 02:57:41,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1662. [2019-10-15 02:57:41,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1662 states. [2019-10-15 02:57:41,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2184 transitions. [2019-10-15 02:57:41,783 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 2184 transitions. Word has length 201 [2019-10-15 02:57:41,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:57:41,784 INFO L462 AbstractCegarLoop]: Abstraction has 1662 states and 2184 transitions. [2019-10-15 02:57:41,785 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 02:57:41,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 2184 transitions. [2019-10-15 02:57:41,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-15 02:57:41,794 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:57:41,795 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:57:41,795 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:57:41,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:57:41,796 INFO L82 PathProgramCache]: Analyzing trace with hash 561078519, now seen corresponding path program 1 times [2019-10-15 02:57:41,796 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:57:41,796 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850849276] [2019-10-15 02:57:41,797 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:57:41,797 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:57:41,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:57:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:57:42,289 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2019-10-15 02:57:42,290 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850849276] [2019-10-15 02:57:42,291 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:57:42,291 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 02:57:42,292 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917990218] [2019-10-15 02:57:42,292 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 02:57:42,293 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:57:42,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 02:57:42,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 02:57:42,294 INFO L87 Difference]: Start difference. First operand 1662 states and 2184 transitions. Second operand 8 states. [2019-10-15 02:57:42,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:57:42,435 INFO L93 Difference]: Finished difference Result 1695 states and 2223 transitions. [2019-10-15 02:57:42,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 02:57:42,436 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 216 [2019-10-15 02:57:42,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:57:42,447 INFO L225 Difference]: With dead ends: 1695 [2019-10-15 02:57:42,447 INFO L226 Difference]: Without dead ends: 1692 [2019-10-15 02:57:42,448 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-15 02:57:42,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2019-10-15 02:57:42,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1664. [2019-10-15 02:57:42,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1664 states. [2019-10-15 02:57:42,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1664 states to 1664 states and 2187 transitions. [2019-10-15 02:57:42,519 INFO L78 Accepts]: Start accepts. Automaton has 1664 states and 2187 transitions. Word has length 216 [2019-10-15 02:57:42,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:57:42,521 INFO L462 AbstractCegarLoop]: Abstraction has 1664 states and 2187 transitions. [2019-10-15 02:57:42,521 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 02:57:42,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states and 2187 transitions. [2019-10-15 02:57:42,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2019-10-15 02:57:42,531 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:57:42,531 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:57:42,532 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:57:42,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:57:42,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1907033541, now seen corresponding path program 1 times [2019-10-15 02:57:42,532 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:57:42,533 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336903444] [2019-10-15 02:57:42,533 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:57:42,533 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:57:42,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:57:42,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:57:42,865 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2019-10-15 02:57:42,866 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336903444] [2019-10-15 02:57:42,866 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:57:42,867 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 02:57:42,867 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303410639] [2019-10-15 02:57:42,868 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 02:57:42,868 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:57:42,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 02:57:42,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 02:57:42,869 INFO L87 Difference]: Start difference. First operand 1664 states and 2187 transitions. Second operand 4 states. [2019-10-15 02:57:45,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:57:45,384 INFO L93 Difference]: Finished difference Result 3829 states and 5033 transitions. [2019-10-15 02:57:45,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 02:57:45,385 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 244 [2019-10-15 02:57:45,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:57:45,398 INFO L225 Difference]: With dead ends: 3829 [2019-10-15 02:57:45,399 INFO L226 Difference]: Without dead ends: 2210 [2019-10-15 02:57:45,408 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 02:57:45,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2019-10-15 02:57:45,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 2209. [2019-10-15 02:57:45,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2209 states. [2019-10-15 02:57:45,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 2896 transitions. [2019-10-15 02:57:45,594 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 2896 transitions. Word has length 244 [2019-10-15 02:57:45,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:57:45,595 INFO L462 AbstractCegarLoop]: Abstraction has 2209 states and 2896 transitions. [2019-10-15 02:57:45,595 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 02:57:45,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 2896 transitions. [2019-10-15 02:57:45,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-10-15 02:57:45,615 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:57:45,615 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:57:45,616 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:57:45,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:57:45,616 INFO L82 PathProgramCache]: Analyzing trace with hash -631311840, now seen corresponding path program 1 times [2019-10-15 02:57:45,617 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:57:45,617 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114482341] [2019-10-15 02:57:45,617 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:57:45,617 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:57:45,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:57:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:57:46,014 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2019-10-15 02:57:46,014 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114482341] [2019-10-15 02:57:46,015 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:57:46,015 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 02:57:46,015 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965835499] [2019-10-15 02:57:46,016 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 02:57:46,016 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:57:46,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 02:57:46,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:57:46,017 INFO L87 Difference]: Start difference. First operand 2209 states and 2896 transitions. Second operand 5 states. [2019-10-15 02:57:46,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:57:46,167 INFO L93 Difference]: Finished difference Result 3836 states and 5038 transitions. [2019-10-15 02:57:46,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 02:57:46,168 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 246 [2019-10-15 02:57:46,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:57:46,191 INFO L225 Difference]: With dead ends: 3836 [2019-10-15 02:57:46,191 INFO L226 Difference]: Without dead ends: 2217 [2019-10-15 02:57:46,198 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:57:46,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2217 states. [2019-10-15 02:57:46,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2217 to 2213. [2019-10-15 02:57:46,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2213 states. [2019-10-15 02:57:46,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2213 states to 2213 states and 2900 transitions. [2019-10-15 02:57:46,346 INFO L78 Accepts]: Start accepts. Automaton has 2213 states and 2900 transitions. Word has length 246 [2019-10-15 02:57:46,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:57:46,346 INFO L462 AbstractCegarLoop]: Abstraction has 2213 states and 2900 transitions. [2019-10-15 02:57:46,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 02:57:46,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2213 states and 2900 transitions. [2019-10-15 02:57:46,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2019-10-15 02:57:46,359 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:57:46,359 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:57:46,360 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:57:46,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:57:46,360 INFO L82 PathProgramCache]: Analyzing trace with hash -730919617, now seen corresponding path program 1 times [2019-10-15 02:57:46,360 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:57:46,361 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107085054] [2019-10-15 02:57:46,361 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:57:46,361 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:57:46,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:57:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:57:46,632 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2019-10-15 02:57:46,632 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107085054] [2019-10-15 02:57:46,633 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:57:46,633 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:57:46,633 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023795538] [2019-10-15 02:57:46,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:57:46,635 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:57:46,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:57:46,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:57:46,635 INFO L87 Difference]: Start difference. First operand 2213 states and 2900 transitions. Second operand 3 states. [2019-10-15 02:57:46,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:57:46,830 INFO L93 Difference]: Finished difference Result 3839 states and 5043 transitions. [2019-10-15 02:57:46,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:57:46,832 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 268 [2019-10-15 02:57:46,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:57:46,847 INFO L225 Difference]: With dead ends: 3839 [2019-10-15 02:57:46,848 INFO L226 Difference]: Without dead ends: 2216 [2019-10-15 02:57:46,856 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:57:46,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2216 states. [2019-10-15 02:57:46,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2216 to 2214. [2019-10-15 02:57:46,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2214 states. [2019-10-15 02:57:46,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2214 states to 2214 states and 2901 transitions. [2019-10-15 02:57:47,000 INFO L78 Accepts]: Start accepts. Automaton has 2214 states and 2901 transitions. Word has length 268 [2019-10-15 02:57:47,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:57:47,002 INFO L462 AbstractCegarLoop]: Abstraction has 2214 states and 2901 transitions. [2019-10-15 02:57:47,002 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:57:47,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2214 states and 2901 transitions. [2019-10-15 02:57:47,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2019-10-15 02:57:47,019 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:57:47,019 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:57:47,019 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:57:47,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:57:47,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1518582705, now seen corresponding path program 1 times [2019-10-15 02:57:47,021 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:57:47,021 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644519971] [2019-10-15 02:57:47,021 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:57:47,021 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:57:47,022 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:57:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:57:47,273 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2019-10-15 02:57:47,274 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644519971] [2019-10-15 02:57:47,274 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:57:47,274 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:57:47,274 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758094888] [2019-10-15 02:57:47,276 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:57:47,276 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:57:47,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:57:47,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:57:47,277 INFO L87 Difference]: Start difference. First operand 2214 states and 2901 transitions. Second operand 3 states. [2019-10-15 02:57:47,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:57:47,397 INFO L93 Difference]: Finished difference Result 3829 states and 5030 transitions. [2019-10-15 02:57:47,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:57:47,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 269 [2019-10-15 02:57:47,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:57:47,410 INFO L225 Difference]: With dead ends: 3829 [2019-10-15 02:57:47,410 INFO L226 Difference]: Without dead ends: 2205 [2019-10-15 02:57:47,416 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:57:47,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2205 states. [2019-10-15 02:57:47,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 2201. [2019-10-15 02:57:47,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2201 states. [2019-10-15 02:57:47,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 2883 transitions. [2019-10-15 02:57:47,558 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 2883 transitions. Word has length 269 [2019-10-15 02:57:47,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:57:47,559 INFO L462 AbstractCegarLoop]: Abstraction has 2201 states and 2883 transitions. [2019-10-15 02:57:47,559 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:57:47,559 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 2883 transitions. [2019-10-15 02:57:47,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2019-10-15 02:57:47,572 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:57:47,573 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:57:47,573 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:57:47,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:57:47,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1633386451, now seen corresponding path program 1 times [2019-10-15 02:57:47,574 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:57:47,574 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691057316] [2019-10-15 02:57:47,574 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:57:47,574 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:57:47,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:57:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:57:47,957 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2019-10-15 02:57:47,957 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691057316] [2019-10-15 02:57:47,957 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:57:47,957 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 02:57:47,958 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882250066] [2019-10-15 02:57:47,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 02:57:47,958 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:57:47,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 02:57:47,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 02:57:47,959 INFO L87 Difference]: Start difference. First operand 2201 states and 2883 transitions. Second operand 7 states. [2019-10-15 02:57:53,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:57:53,554 INFO L93 Difference]: Finished difference Result 3823 states and 5021 transitions. [2019-10-15 02:57:53,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 02:57:53,555 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 278 [2019-10-15 02:57:53,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:57:53,567 INFO L225 Difference]: With dead ends: 3823 [2019-10-15 02:57:53,567 INFO L226 Difference]: Without dead ends: 2212 [2019-10-15 02:57:53,573 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-15 02:57:53,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2212 states. [2019-10-15 02:57:53,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2212 to 2202. [2019-10-15 02:57:53,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2202 states. [2019-10-15 02:57:53,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 2884 transitions. [2019-10-15 02:57:53,688 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 2884 transitions. Word has length 278 [2019-10-15 02:57:53,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:57:53,689 INFO L462 AbstractCegarLoop]: Abstraction has 2202 states and 2884 transitions. [2019-10-15 02:57:53,689 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 02:57:53,689 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 2884 transitions. [2019-10-15 02:57:53,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2019-10-15 02:57:53,703 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:57:53,703 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:57:53,704 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:57:53,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:57:53,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1539494461, now seen corresponding path program 1 times [2019-10-15 02:57:53,704 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:57:53,704 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914895132] [2019-10-15 02:57:53,705 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:57:53,705 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:57:53,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:57:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:57:54,513 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2019-10-15 02:57:54,513 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914895132] [2019-10-15 02:57:54,513 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375216588] [2019-10-15 02:57:54,514 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 [2019-10-15 02:57:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:57:56,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 2499 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-15 02:57:56,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:57:56,163 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:57:56,258 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2019-10-15 02:57:56,259 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:57:56,592 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:57:56,622 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:57:56,770 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2019-10-15 02:57:56,771 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 02:57:56,771 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 11 [2019-10-15 02:57:56,771 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000813810] [2019-10-15 02:57:56,772 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 02:57:56,772 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:57:56,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 02:57:56,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-10-15 02:57:56,773 INFO L87 Difference]: Start difference. First operand 2202 states and 2884 transitions. Second operand 6 states. [2019-10-15 02:57:57,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:57:57,012 INFO L93 Difference]: Finished difference Result 4383 states and 5749 transitions. [2019-10-15 02:57:57,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 02:57:57,013 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 279 [2019-10-15 02:57:57,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:57:57,030 INFO L225 Difference]: With dead ends: 4383 [2019-10-15 02:57:57,031 INFO L226 Difference]: Without dead ends: 2203 [2019-10-15 02:57:57,039 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 551 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2019-10-15 02:57:57,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2203 states. [2019-10-15 02:57:57,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2203 to 2203. [2019-10-15 02:57:57,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2203 states. [2019-10-15 02:57:57,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2203 states to 2203 states and 2885 transitions. [2019-10-15 02:57:57,198 INFO L78 Accepts]: Start accepts. Automaton has 2203 states and 2885 transitions. Word has length 279 [2019-10-15 02:57:57,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:57:57,198 INFO L462 AbstractCegarLoop]: Abstraction has 2203 states and 2885 transitions. [2019-10-15 02:57:57,198 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 02:57:57,198 INFO L276 IsEmpty]: Start isEmpty. Operand 2203 states and 2885 transitions. [2019-10-15 02:57:57,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2019-10-15 02:57:57,218 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:57:57,218 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]