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 -i ../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:21:55,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:21:55,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:21:55,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:21:55,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:21:55,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:21:55,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:21:55,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:21:55,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:21:55,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:21:55,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:21:55,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:21:55,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:21:55,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:21:55,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:21:55,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:21:55,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:21:55,694 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:21:55,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:21:55,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:21:55,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:21:55,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:21:55,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:21:55,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:21:55,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:21:55,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:21:55,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:21:55,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:21:55,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:21:55,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:21:55,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:21:55,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:21:55,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:21:55,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:21:55,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:21:55,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:21:55,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:21:55,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:21:55,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:21:55,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:21:55,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:21:55,717 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 [2019-09-20 13:21:55,744 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:21:55,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:21:55,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 13:21:55,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 13:21:55,747 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 13:21:55,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:21:55,748 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:21:55,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 13:21:55,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:21:55,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:21:55,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:21:55,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:21:55,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:21:55,750 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:21:55,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:21:55,751 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 13:21:55,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:21:55,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:21:55,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:21:55,751 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 13:21:55,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 13:21:55,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:21:55,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:21:55,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:21:55,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 13:21:55,753 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 13:21:55,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:21:55,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 13:21:55,753 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:21:55,804 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:21:55,816 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:21:55,820 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:21:55,821 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:21:55,822 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:21:55,822 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i [2019-09-20 13:21:55,885 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/975052d1a/190b8b77021b48f9838e824799998006/FLAG58044eb64 [2019-09-20 13:21:56,740 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:21:56,742 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i [2019-09-20 13:21:56,792 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/975052d1a/190b8b77021b48f9838e824799998006/FLAG58044eb64 [2019-09-20 13:21:57,243 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/975052d1a/190b8b77021b48f9838e824799998006 [2019-09-20 13:21:57,254 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:21:57,256 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:21:57,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:21:57,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:21:57,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:21:57,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:21:57" (1/1) ... [2019-09-20 13:21:57,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fb8f117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:57, skipping insertion in model container [2019-09-20 13:21:57,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:21:57" (1/1) ... [2019-09-20 13:21:57,273 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:21:57,406 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:21:59,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:21:59,237 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:21:59,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:21:59,886 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:21:59,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:59 WrapperNode [2019-09-20 13:21:59,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:21:59,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:21:59,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:21:59,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:21:59,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:59" (1/1) ... [2019-09-20 13:21:59,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:59" (1/1) ... [2019-09-20 13:21:59,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:59" (1/1) ... [2019-09-20 13:21:59,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:59" (1/1) ... [2019-09-20 13:22:00,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:59" (1/1) ... [2019-09-20 13:22:00,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:59" (1/1) ... [2019-09-20 13:22:00,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:59" (1/1) ... [2019-09-20 13:22:00,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:22:00,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:22:00,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:22:00,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:22:00,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:59" (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 [2019-09-20 13:22:00,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:22:00,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:22:00,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-09-20 13:22:00,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2019-09-20 13:22:00,311 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-09-20 13:22:00,312 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-09-20 13:22:00,312 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-09-20 13:22:00,312 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-09-20 13:22:00,313 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-09-20 13:22:00,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-20 13:22:00,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-20 13:22:00,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-20 13:22:00,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-20 13:22:00,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-20 13:22:00,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-20 13:22:00,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-20 13:22:00,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2019-09-20 13:22:00,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-20 13:22:00,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-09-20 13:22:00,325 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-09-20 13:22:00,325 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-09-20 13:22:00,326 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-09-20 13:22:00,326 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2019-09-20 13:22:00,326 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-09-20 13:22:00,326 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2019-09-20 13:22:00,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-20 13:22:00,327 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-20 13:22:00,327 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-09-20 13:22:00,327 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-09-20 13:22:00,327 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2019-09-20 13:22:00,328 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-09-20 13:22:00,328 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2019-09-20 13:22:00,328 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-09-20 13:22:00,329 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice [2019-09-20 13:22:00,329 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2019-09-20 13:22:00,329 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2019-09-20 13:22:00,329 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2019-09-20 13:22:00,330 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2019-09-20 13:22:00,330 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2019-09-20 13:22:00,330 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2019-09-20 13:22:00,330 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_queue_stopped [2019-09-20 13:22:00,331 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2019-09-20 13:22:00,331 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2019-09-20 13:22:00,331 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc_bufs [2019-09-20 13:22:00,331 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2019-09-20 13:22:00,331 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_realloc_bufs [2019-09-20 13:22:00,332 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_lock [2019-09-20 13:22:00,332 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2019-09-20 13:22:00,333 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2019-09-20 13:22:00,333 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_encaps [2019-09-20 13:22:00,333 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_write_wakeup [2019-09-20 13:22:00,333 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_tx_timeout [2019-09-20 13:22:00,334 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_xmit [2019-09-20 13:22:00,334 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_close [2019-09-20 13:22:00,334 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_open [2019-09-20 13:22:00,334 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_change_mtu [2019-09-20 13:22:00,335 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_get_stats64 [2019-09-20 13:22:00,335 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_init [2019-09-20 13:22:00,335 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_uninit [2019-09-20 13:22:00,335 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_netdev [2019-09-20 13:22:00,335 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_setup [2019-09-20 13:22:00,336 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_receive_buf [2019-09-20 13:22:00,336 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_sync [2019-09-20 13:22:00,336 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc [2019-09-20 13:22:00,336 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_open [2019-09-20 13:22:00,337 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2019-09-20 13:22:00,337 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_hangup [2019-09-20 13:22:00,337 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc [2019-09-20 13:22:00,338 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc [2019-09-20 13:22:00,338 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc6 [2019-09-20 13:22:00,338 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc6 [2019-09-20 13:22:00,338 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2019-09-20 13:22:00,339 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_compat_ioctl [2019-09-20 13:22:00,339 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2019-09-20 13:22:00,340 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_init [2019-09-20 13:22:00,340 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_exit [2019-09-20 13:22:00,340 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_outfill [2019-09-20 13:22:00,341 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_keepalive [2019-09-20 13:22:00,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_3 [2019-09-20 13:22:00,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_4 [2019-09-20 13:22:00,341 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2019-09-20 13:22:00,342 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2019-09-20 13:22:00,342 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2019-09-20 13:22:00,343 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_2 [2019-09-20 13:22:00,343 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2019-09-20 13:22:00,343 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2019-09-20 13:22:00,343 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2019-09-20 13:22:00,344 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2019-09-20 13:22:00,345 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:22:00,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_1 [2019-09-20 13:22:00,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_2 [2019-09-20 13:22:00,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_sl_alloc_bufs_3 [2019-09-20 13:22:00,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdevice_4 [2019-09-20 13:22:00,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_5 [2019-09-20 13:22:00,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_6 [2019-09-20 13:22:00,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_7 [2019-09-20 13:22:00,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_8 [2019-09-20 13:22:00,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_9 [2019-09-20 13:22:00,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_10 [2019-09-20 13:22:00,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_11 [2019-09-20 13:22:00,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_12 [2019-09-20 13:22:00,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_13 [2019-09-20 13:22:00,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_14 [2019-09-20 13:22:00,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_15 [2019-09-20 13:22:00,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_16 [2019-09-20 13:22:00,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_17 [2019-09-20 13:22:00,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_slip_open_18 [2019-09-20 13:22:00,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_callback_ret_val [2019-09-20 13:22:00,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2019-09-20 13:22:00,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-09-20 13:22:00,349 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-09-20 13:22:00,349 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-09-20 13:22:00,349 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2019-09-20 13:22:00,349 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-09-20 13:22:00,350 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2019-09-20 13:22:00,350 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2019-09-20 13:22:00,350 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2019-09-20 13:22:00,351 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-09-20 13:22:00,351 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2019-09-20 13:22:00,351 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2019-09-20 13:22:00,352 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-09-20 13:22:00,352 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2019-09-20 13:22:00,352 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2019-09-20 13:22:00,352 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2019-09-20 13:22:00,354 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-09-20 13:22:00,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-20 13:22:00,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-20 13:22:00,354 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-09-20 13:22:00,355 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-09-20 13:22:00,355 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2019-09-20 13:22:00,355 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2019-09-20 13:22:00,356 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2019-09-20 13:22:00,356 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-20 13:22:00,356 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdevice [2019-09-20 13:22:00,356 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2019-09-20 13:22:00,357 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2019-09-20 13:22:00,357 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-09-20 13:22:00,357 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_compress [2019-09-20 13:22:00,357 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2019-09-20 13:22:00,358 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_init [2019-09-20 13:22:00,363 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_remember [2019-09-20 13:22:00,364 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_uncompress [2019-09-20 13:22:00,364 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_chars_in_buffer [2019-09-20 13:22:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2019-09-20 13:22:00,373 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2019-09-20 13:22:00,374 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_mode_ioctl [2019-09-20 13:22:00,374 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_ldisc [2019-09-20 13:22:00,375 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_ldisc [2019-09-20 13:22:00,375 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-09-20 13:22:00,376 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice_queue [2019-09-20 13:22:00,376 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-09-20 13:22:00,376 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-20 13:22:00,376 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-20 13:22:00,377 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-20 13:22:00,377 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-09-20 13:22:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:22:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-20 13:22:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-09-20 13:22:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-09-20 13:22:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-09-20 13:22:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-09-20 13:22:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-09-20 13:22:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:22:00,379 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-20 13:22:00,379 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-09-20 13:22:00,379 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-09-20 13:22:00,379 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-09-20 13:22:00,379 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:22:00,380 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-20 13:22:00,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:22:00,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-20 13:22:00,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-20 13:22:00,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-20 13:22:00,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 13:22:00,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-20 13:22:00,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:22:00,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-20 13:22:00,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-20 13:22:00,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-20 13:22:00,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-20 13:22:00,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-20 13:22:00,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-20 13:22:00,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-20 13:22:00,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2019-09-20 13:22:00,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-09-20 13:22:00,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_callback_ret_val [2019-09-20 13:22:00,384 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-09-20 13:22:00,384 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-09-20 13:22:00,384 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-09-20 13:22:00,384 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-09-20 13:22:00,384 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-09-20 13:22:00,385 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-09-20 13:22:00,385 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2019-09-20 13:22:00,385 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-09-20 13:22:00,385 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2019-09-20 13:22:00,385 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-09-20 13:22:00,386 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-09-20 13:22:00,386 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2019-09-20 13:22:00,386 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-09-20 13:22:00,386 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2019-09-20 13:22:00,386 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2019-09-20 13:22:00,387 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2019-09-20 13:22:00,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_2 [2019-09-20 13:22:00,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_8 [2019-09-20 13:22:00,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_10 [2019-09-20 13:22:00,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_12 [2019-09-20 13:22:00,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_14 [2019-09-20 13:22:00,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_16 [2019-09-20 13:22:00,388 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-09-20 13:22:00,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_7 [2019-09-20 13:22:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_9 [2019-09-20 13:22:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_11 [2019-09-20 13:22:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_13 [2019-09-20 13:22:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_15 [2019-09-20 13:22:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_17 [2019-09-20 13:22:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2019-09-20 13:22:00,390 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-09-20 13:22:00,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_1 [2019-09-20 13:22:00,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_5 [2019-09-20 13:22:00,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_6 [2019-09-20 13:22:00,391 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-20 13:22:00,391 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-20 13:22:00,391 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-20 13:22:00,391 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-09-20 13:22:00,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_3 [2019-09-20 13:22:00,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_4 [2019-09-20 13:22:00,392 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2019-09-20 13:22:00,392 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2019-09-20 13:22:00,392 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2019-09-20 13:22:00,392 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_2 [2019-09-20 13:22:00,392 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2019-09-20 13:22:00,393 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2019-09-20 13:22:00,393 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2019-09-20 13:22:00,393 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2019-09-20 13:22:00,393 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-09-20 13:22:00,393 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-09-20 13:22:00,394 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-09-20 13:22:00,394 INFO L130 BoogieDeclarations]: Found specification of procedure tty_chars_in_buffer [2019-09-20 13:22:00,394 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2019-09-20 13:22:00,394 INFO L130 BoogieDeclarations]: Found specification of procedure tty_mode_ioctl [2019-09-20 13:22:00,394 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2019-09-20 13:22:00,395 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_ldisc [2019-09-20 13:22:00,395 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_ldisc [2019-09-20 13:22:00,395 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2019-09-20 13:22:00,395 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-09-20 13:22:00,396 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2019-09-20 13:22:00,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:22:00,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:22:00,396 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2019-09-20 13:22:00,396 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-09-20 13:22:00,396 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2019-09-20 13:22:00,396 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-09-20 13:22:00,397 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2019-09-20 13:22:00,397 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdevice [2019-09-20 13:22:00,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdevice_4 [2019-09-20 13:22:00,397 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice_queue [2019-09-20 13:22:00,397 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice [2019-09-20 13:22:00,397 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-09-20 13:22:00,397 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2019-09-20 13:22:00,398 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2019-09-20 13:22:00,398 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2019-09-20 13:22:00,398 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2019-09-20 13:22:00,398 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2019-09-20 13:22:00,398 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2019-09-20 13:22:00,398 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2019-09-20 13:22:00,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:22:00,400 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2019-09-20 13:22:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_queue_stopped [2019-09-20 13:22:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2019-09-20 13:22:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2019-09-20 13:22:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2019-09-20 13:22:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2019-09-20 13:22:00,408 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2019-09-20 13:22:00,408 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-09-20 13:22:00,408 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2019-09-20 13:22:00,409 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2019-09-20 13:22:00,409 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_init [2019-09-20 13:22:00,409 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2019-09-20 13:22:00,409 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_compress [2019-09-20 13:22:00,409 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_uncompress [2019-09-20 13:22:00,409 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_remember [2019-09-20 13:22:00,409 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc [2019-09-20 13:22:00,410 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc [2019-09-20 13:22:00,410 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc6 [2019-09-20 13:22:00,410 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc6 [2019-09-20 13:22:00,410 INFO L130 BoogieDeclarations]: Found specification of procedure sl_keepalive [2019-09-20 13:22:00,410 INFO L130 BoogieDeclarations]: Found specification of procedure sl_outfill [2019-09-20 13:22:00,410 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2019-09-20 13:22:00,410 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc_bufs [2019-09-20 13:22:00,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_sl_alloc_bufs_3 [2019-09-20 13:22:00,410 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2019-09-20 13:22:00,411 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-09-20 13:22:00,411 INFO L130 BoogieDeclarations]: Found specification of procedure sl_realloc_bufs [2019-09-20 13:22:00,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-09-20 13:22:00,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:22:00,411 INFO L130 BoogieDeclarations]: Found specification of procedure sl_lock [2019-09-20 13:22:00,411 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2019-09-20 13:22:00,411 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2019-09-20 13:22:00,411 INFO L130 BoogieDeclarations]: Found specification of procedure sl_encaps [2019-09-20 13:22:00,412 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-09-20 13:22:00,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:22:00,412 INFO L130 BoogieDeclarations]: Found specification of procedure slip_write_wakeup [2019-09-20 13:22:00,412 INFO L130 BoogieDeclarations]: Found specification of procedure sl_tx_timeout [2019-09-20 13:22:00,412 INFO L130 BoogieDeclarations]: Found specification of procedure sl_xmit [2019-09-20 13:22:00,412 INFO L130 BoogieDeclarations]: Found specification of procedure sl_close [2019-09-20 13:22:00,412 INFO L130 BoogieDeclarations]: Found specification of procedure sl_open [2019-09-20 13:22:00,412 INFO L130 BoogieDeclarations]: Found specification of procedure sl_change_mtu [2019-09-20 13:22:00,413 INFO L130 BoogieDeclarations]: Found specification of procedure sl_get_stats64 [2019-09-20 13:22:00,413 INFO L130 BoogieDeclarations]: Found specification of procedure sl_init [2019-09-20 13:22:00,413 INFO L130 BoogieDeclarations]: Found specification of procedure sl_uninit [2019-09-20 13:22:00,413 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_netdev [2019-09-20 13:22:00,413 INFO L130 BoogieDeclarations]: Found specification of procedure sl_setup [2019-09-20 13:22:00,413 INFO L130 BoogieDeclarations]: Found specification of procedure slip_receive_buf [2019-09-20 13:22:00,413 INFO L130 BoogieDeclarations]: Found specification of procedure sl_sync [2019-09-20 13:22:00,414 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc [2019-09-20 13:22:00,414 INFO L130 BoogieDeclarations]: Found specification of procedure slip_open [2019-09-20 13:22:00,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_slip_open_18 [2019-09-20 13:22:00,414 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2019-09-20 13:22:00,414 INFO L130 BoogieDeclarations]: Found specification of procedure slip_hangup [2019-09-20 13:22:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2019-09-20 13:22:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure slip_compat_ioctl [2019-09-20 13:22:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure slip_init [2019-09-20 13:22:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure slip_exit [2019-09-20 13:22:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-20 13:22:00,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-20 13:22:00,416 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2019-09-20 13:22:00,416 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:22:00,416 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-20 13:22:00,416 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:22:00,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:22:00,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 13:22:00,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:22:00,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:22:00,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-09-20 13:22:00,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-09-20 13:22:00,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-09-20 13:22:00,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-09-20 13:22:01,924 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-20 13:22:06,433 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:22:06,433 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 13:22:06,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:22:06 BoogieIcfgContainer [2019-09-20 13:22:06,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:22:06,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:22:06,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:22:06,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:22:06,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:21:57" (1/3) ... [2019-09-20 13:22:06,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70fc542e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:22:06, skipping insertion in model container [2019-09-20 13:22:06,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:59" (2/3) ... [2019-09-20 13:22:06,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70fc542e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:22:06, skipping insertion in model container [2019-09-20 13:22:06,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:22:06" (3/3) ... [2019-09-20 13:22:06,446 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i [2019-09-20 13:22:06,459 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:22:06,472 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:22:06,492 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:22:06,545 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 13:22:06,546 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:22:06,546 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 13:22:06,546 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:22:06,547 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:22:06,547 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:22:06,547 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:22:06,547 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:22:06,547 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:22:06,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states. [2019-09-20 13:22:06,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-09-20 13:22:06,642 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:06,643 INFO L407 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:22:06,645 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:06,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:06,652 INFO L82 PathProgramCache]: Analyzing trace with hash -2145269375, now seen corresponding path program 1 times [2019-09-20 13:22:06,653 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:06,654 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:06,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:06,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:06,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:07,226 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2019-09-20 13:22:07,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:07,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:22:07,236 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:22:07,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:22:07,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:07,254 INFO L87 Difference]: Start difference. First operand 1432 states. Second operand 3 states. [2019-09-20 13:22:07,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:07,717 INFO L93 Difference]: Finished difference Result 3573 states and 4844 transitions. [2019-09-20 13:22:07,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:22:07,719 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2019-09-20 13:22:07,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:07,770 INFO L225 Difference]: With dead ends: 3573 [2019-09-20 13:22:07,771 INFO L226 Difference]: Without dead ends: 2064 [2019-09-20 13:22:07,786 INFO L636 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 [2019-09-20 13:22:07,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2064 states. [2019-09-20 13:22:08,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2064 to 2064. [2019-09-20 13:22:08,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2064 states. [2019-09-20 13:22:08,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2064 states to 2064 states and 2780 transitions. [2019-09-20 13:22:08,067 INFO L78 Accepts]: Start accepts. Automaton has 2064 states and 2780 transitions. Word has length 82 [2019-09-20 13:22:08,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:08,068 INFO L475 AbstractCegarLoop]: Abstraction has 2064 states and 2780 transitions. [2019-09-20 13:22:08,068 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:22:08,068 INFO L276 IsEmpty]: Start isEmpty. Operand 2064 states and 2780 transitions. [2019-09-20 13:22:08,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-09-20 13:22:08,100 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:08,101 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 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] [2019-09-20 13:22:08,102 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:08,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:08,103 INFO L82 PathProgramCache]: Analyzing trace with hash -361283824, now seen corresponding path program 1 times [2019-09-20 13:22:08,103 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:08,103 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:08,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:08,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:08,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:08,520 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2019-09-20 13:22:08,521 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:08,521 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:22:08,523 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:22:08,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:22:08,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:22:08,523 INFO L87 Difference]: Start difference. First operand 2064 states and 2780 transitions. Second operand 5 states. [2019-09-20 13:22:14,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:14,320 INFO L93 Difference]: Finished difference Result 4095 states and 5522 transitions. [2019-09-20 13:22:14,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:22:14,321 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2019-09-20 13:22:14,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:14,337 INFO L225 Difference]: With dead ends: 4095 [2019-09-20 13:22:14,338 INFO L226 Difference]: Without dead ends: 2064 [2019-09-20 13:22:14,347 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:22:14,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2064 states. [2019-09-20 13:22:14,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2064 to 2064. [2019-09-20 13:22:14,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2064 states. [2019-09-20 13:22:14,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2064 states to 2064 states and 2778 transitions. [2019-09-20 13:22:14,484 INFO L78 Accepts]: Start accepts. Automaton has 2064 states and 2778 transitions. Word has length 142 [2019-09-20 13:22:14,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:14,484 INFO L475 AbstractCegarLoop]: Abstraction has 2064 states and 2778 transitions. [2019-09-20 13:22:14,484 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:22:14,485 INFO L276 IsEmpty]: Start isEmpty. Operand 2064 states and 2778 transitions. [2019-09-20 13:22:14,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-09-20 13:22:14,495 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:14,495 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 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] [2019-09-20 13:22:14,496 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:14,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:14,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1503786290, now seen corresponding path program 1 times [2019-09-20 13:22:14,497 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:14,497 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:14,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:14,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:14,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:14,801 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2019-09-20 13:22:14,802 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:14,802 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-20 13:22:14,804 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-20 13:22:14,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-20 13:22:14,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:22:14,805 INFO L87 Difference]: Start difference. First operand 2064 states and 2778 transitions. Second operand 10 states. [2019-09-20 13:22:15,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:15,063 INFO L93 Difference]: Finished difference Result 4105 states and 5526 transitions. [2019-09-20 13:22:15,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:22:15,064 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 142 [2019-09-20 13:22:15,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:15,085 INFO L225 Difference]: With dead ends: 4105 [2019-09-20 13:22:15,085 INFO L226 Difference]: Without dead ends: 2066 [2019-09-20 13:22:15,095 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:22:15,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2066 states. [2019-09-20 13:22:15,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2066 to 2064. [2019-09-20 13:22:15,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2064 states. [2019-09-20 13:22:15,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2064 states to 2064 states and 2776 transitions. [2019-09-20 13:22:15,200 INFO L78 Accepts]: Start accepts. Automaton has 2064 states and 2776 transitions. Word has length 142 [2019-09-20 13:22:15,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:15,201 INFO L475 AbstractCegarLoop]: Abstraction has 2064 states and 2776 transitions. [2019-09-20 13:22:15,201 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-20 13:22:15,202 INFO L276 IsEmpty]: Start isEmpty. Operand 2064 states and 2776 transitions. [2019-09-20 13:22:15,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-09-20 13:22:15,209 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:15,209 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 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] [2019-09-20 13:22:15,209 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:15,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:15,210 INFO L82 PathProgramCache]: Analyzing trace with hash -231756230, now seen corresponding path program 1 times [2019-09-20 13:22:15,210 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:15,210 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:15,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:15,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:15,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:15,505 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2019-09-20 13:22:15,505 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:15,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:22:15,507 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:22:15,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:22:15,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:22:15,509 INFO L87 Difference]: Start difference. First operand 2064 states and 2776 transitions. Second operand 7 states. [2019-09-20 13:22:15,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:15,648 INFO L93 Difference]: Finished difference Result 2078 states and 2790 transitions. [2019-09-20 13:22:15,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:22:15,649 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 149 [2019-09-20 13:22:15,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:15,669 INFO L225 Difference]: With dead ends: 2078 [2019-09-20 13:22:15,669 INFO L226 Difference]: Without dead ends: 2075 [2019-09-20 13:22:15,671 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:22:15,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2075 states. [2019-09-20 13:22:15,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2075 to 2072. [2019-09-20 13:22:15,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2072 states. [2019-09-20 13:22:15,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2072 states to 2072 states and 2784 transitions. [2019-09-20 13:22:15,776 INFO L78 Accepts]: Start accepts. Automaton has 2072 states and 2784 transitions. Word has length 149 [2019-09-20 13:22:15,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:15,777 INFO L475 AbstractCegarLoop]: Abstraction has 2072 states and 2784 transitions. [2019-09-20 13:22:15,777 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:22:15,777 INFO L276 IsEmpty]: Start isEmpty. Operand 2072 states and 2784 transitions. [2019-09-20 13:22:15,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-09-20 13:22:15,786 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:15,787 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 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] [2019-09-20 13:22:15,787 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:15,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:15,787 INFO L82 PathProgramCache]: Analyzing trace with hash 275213783, now seen corresponding path program 1 times [2019-09-20 13:22:15,787 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:15,788 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:15,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:15,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:15,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:16,025 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2019-09-20 13:22:16,026 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:16,029 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:22:16,030 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:22:16,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:22:16,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:22:16,031 INFO L87 Difference]: Start difference. First operand 2072 states and 2784 transitions. Second operand 8 states. [2019-09-20 13:22:16,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:16,216 INFO L93 Difference]: Finished difference Result 2106 states and 2824 transitions. [2019-09-20 13:22:16,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-20 13:22:16,216 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 165 [2019-09-20 13:22:16,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:16,230 INFO L225 Difference]: With dead ends: 2106 [2019-09-20 13:22:16,230 INFO L226 Difference]: Without dead ends: 2103 [2019-09-20 13:22:16,232 INFO L636 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 [2019-09-20 13:22:16,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2103 states. [2019-09-20 13:22:16,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2103 to 2074. [2019-09-20 13:22:16,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2074 states. [2019-09-20 13:22:16,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2074 states to 2074 states and 2787 transitions. [2019-09-20 13:22:16,330 INFO L78 Accepts]: Start accepts. Automaton has 2074 states and 2787 transitions. Word has length 165 [2019-09-20 13:22:16,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:16,332 INFO L475 AbstractCegarLoop]: Abstraction has 2074 states and 2787 transitions. [2019-09-20 13:22:16,332 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:22:16,332 INFO L276 IsEmpty]: Start isEmpty. Operand 2074 states and 2787 transitions. [2019-09-20 13:22:16,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-09-20 13:22:16,345 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:16,346 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 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] [2019-09-20 13:22:16,346 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:16,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:16,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1881606121, now seen corresponding path program 1 times [2019-09-20 13:22:16,346 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:16,346 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:16,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:16,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:16,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:16,586 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-09-20 13:22:16,587 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:16,587 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:22:16,588 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:22:16,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:22:16,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:22:16,588 INFO L87 Difference]: Start difference. First operand 2074 states and 2787 transitions. Second operand 4 states. [2019-09-20 13:22:19,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:19,699 INFO L93 Difference]: Finished difference Result 4794 states and 6439 transitions. [2019-09-20 13:22:19,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:22:19,700 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 199 [2019-09-20 13:22:19,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:19,723 INFO L225 Difference]: With dead ends: 4794 [2019-09-20 13:22:19,723 INFO L226 Difference]: Without dead ends: 2753 [2019-09-20 13:22:19,735 INFO L636 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 [2019-09-20 13:22:19,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2753 states. [2019-09-20 13:22:19,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2753 to 2752. [2019-09-20 13:22:19,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2752 states. [2019-09-20 13:22:19,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 3686 transitions. [2019-09-20 13:22:19,897 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 3686 transitions. Word has length 199 [2019-09-20 13:22:19,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:19,897 INFO L475 AbstractCegarLoop]: Abstraction has 2752 states and 3686 transitions. [2019-09-20 13:22:19,898 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:22:19,898 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 3686 transitions. [2019-09-20 13:22:19,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-09-20 13:22:19,917 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:19,917 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:22:19,917 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:19,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:19,918 INFO L82 PathProgramCache]: Analyzing trace with hash -940678436, now seen corresponding path program 1 times [2019-09-20 13:22:19,918 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:19,918 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:19,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:19,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:19,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:20,075 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2019-09-20 13:22:20,076 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:20,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:22:20,077 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:22:20,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:22:20,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:20,077 INFO L87 Difference]: Start difference. First operand 2752 states and 3686 transitions. Second operand 3 states. [2019-09-20 13:22:20,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:20,257 INFO L93 Difference]: Finished difference Result 5474 states and 7385 transitions. [2019-09-20 13:22:20,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:22:20,258 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2019-09-20 13:22:20,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:20,278 INFO L225 Difference]: With dead ends: 5474 [2019-09-20 13:22:20,278 INFO L226 Difference]: Without dead ends: 2755 [2019-09-20 13:22:20,291 INFO L636 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 [2019-09-20 13:22:20,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2019-09-20 13:22:20,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2752. [2019-09-20 13:22:20,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2752 states. [2019-09-20 13:22:20,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 3677 transitions. [2019-09-20 13:22:20,436 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 3677 transitions. Word has length 201 [2019-09-20 13:22:20,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:20,437 INFO L475 AbstractCegarLoop]: Abstraction has 2752 states and 3677 transitions. [2019-09-20 13:22:20,437 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:22:20,437 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 3677 transitions. [2019-09-20 13:22:20,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-09-20 13:22:20,452 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:20,452 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 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] [2019-09-20 13:22:20,453 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:20,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:20,453 INFO L82 PathProgramCache]: Analyzing trace with hash 347850975, now seen corresponding path program 1 times [2019-09-20 13:22:20,453 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:20,453 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:20,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:20,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:20,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:20,807 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-09-20 13:22:20,807 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:20,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-20 13:22:20,808 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-20 13:22:20,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-20 13:22:20,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:22:20,810 INFO L87 Difference]: Start difference. First operand 2752 states and 3677 transitions. Second operand 11 states. [2019-09-20 13:22:21,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:21,206 INFO L93 Difference]: Finished difference Result 4832 states and 6471 transitions. [2019-09-20 13:22:21,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-09-20 13:22:21,208 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 204 [2019-09-20 13:22:21,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:21,231 INFO L225 Difference]: With dead ends: 4832 [2019-09-20 13:22:21,232 INFO L226 Difference]: Without dead ends: 2777 [2019-09-20 13:22:21,243 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2019-09-20 13:22:21,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states. [2019-09-20 13:22:21,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 2776. [2019-09-20 13:22:21,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2776 states. [2019-09-20 13:22:21,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2776 states to 2776 states and 3710 transitions. [2019-09-20 13:22:21,373 INFO L78 Accepts]: Start accepts. Automaton has 2776 states and 3710 transitions. Word has length 204 [2019-09-20 13:22:21,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:21,374 INFO L475 AbstractCegarLoop]: Abstraction has 2776 states and 3710 transitions. [2019-09-20 13:22:21,374 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-20 13:22:21,374 INFO L276 IsEmpty]: Start isEmpty. Operand 2776 states and 3710 transitions. [2019-09-20 13:22:21,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-09-20 13:22:21,389 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:21,390 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 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] [2019-09-20 13:22:21,390 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:21,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:21,390 INFO L82 PathProgramCache]: Analyzing trace with hash 492260670, now seen corresponding path program 1 times [2019-09-20 13:22:21,390 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:21,391 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:21,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:21,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:21,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:21,604 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2019-09-20 13:22:21,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:21,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:22:21,605 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:22:21,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:22:21,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:22:21,606 INFO L87 Difference]: Start difference. First operand 2776 states and 3710 transitions. Second operand 5 states. [2019-09-20 13:22:21,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:21,785 INFO L93 Difference]: Finished difference Result 4841 states and 6485 transitions. [2019-09-20 13:22:21,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:22:21,786 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 204 [2019-09-20 13:22:21,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:21,806 INFO L225 Difference]: With dead ends: 4841 [2019-09-20 13:22:21,807 INFO L226 Difference]: Without dead ends: 2784 [2019-09-20 13:22:21,816 INFO L636 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 [2019-09-20 13:22:21,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2019-09-20 13:22:22,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2780. [2019-09-20 13:22:22,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2780 states. [2019-09-20 13:22:22,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 3714 transitions. [2019-09-20 13:22:22,075 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 3714 transitions. Word has length 204 [2019-09-20 13:22:22,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:22,076 INFO L475 AbstractCegarLoop]: Abstraction has 2780 states and 3714 transitions. [2019-09-20 13:22:22,076 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:22:22,076 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 3714 transitions. [2019-09-20 13:22:22,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-09-20 13:22:22,091 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:22,092 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:22:22,092 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:22,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:22,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1372064424, now seen corresponding path program 1 times [2019-09-20 13:22:22,093 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:22,093 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:22,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:22,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:22,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:22,251 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2019-09-20 13:22:22,252 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:22,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:22:22,252 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:22:22,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:22:22,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:22,253 INFO L87 Difference]: Start difference. First operand 2780 states and 3714 transitions. Second operand 3 states. [2019-09-20 13:22:22,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:22,489 INFO L93 Difference]: Finished difference Result 4844 states and 6490 transitions. [2019-09-20 13:22:22,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:22:22,491 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2019-09-20 13:22:22,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:22,515 INFO L225 Difference]: With dead ends: 4844 [2019-09-20 13:22:22,515 INFO L226 Difference]: Without dead ends: 2783 [2019-09-20 13:22:22,527 INFO L636 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 [2019-09-20 13:22:22,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2783 states. [2019-09-20 13:22:22,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2783 to 2781. [2019-09-20 13:22:22,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2781 states. [2019-09-20 13:22:22,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2781 states to 2781 states and 3715 transitions. [2019-09-20 13:22:22,713 INFO L78 Accepts]: Start accepts. Automaton has 2781 states and 3715 transitions. Word has length 231 [2019-09-20 13:22:22,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:22,714 INFO L475 AbstractCegarLoop]: Abstraction has 2781 states and 3715 transitions. [2019-09-20 13:22:22,714 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:22:22,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2781 states and 3715 transitions. [2019-09-20 13:22:22,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-09-20 13:22:22,738 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:22,738 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:22:22,739 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:22,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:22,739 INFO L82 PathProgramCache]: Analyzing trace with hash 348675351, now seen corresponding path program 1 times [2019-09-20 13:22:22,739 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:22,740 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:22,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:22,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:22,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:22,995 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2019-09-20 13:22:22,996 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:22,996 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:22:22,998 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:22:22,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:22:22,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:22,999 INFO L87 Difference]: Start difference. First operand 2781 states and 3715 transitions. Second operand 3 states. [2019-09-20 13:22:23,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:23,136 INFO L93 Difference]: Finished difference Result 4834 states and 6477 transitions. [2019-09-20 13:22:23,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:22:23,138 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2019-09-20 13:22:23,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:23,165 INFO L225 Difference]: With dead ends: 4834 [2019-09-20 13:22:23,166 INFO L226 Difference]: Without dead ends: 2772 [2019-09-20 13:22:23,174 INFO L636 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 [2019-09-20 13:22:23,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2772 states. [2019-09-20 13:22:23,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2772 to 2767. [2019-09-20 13:22:23,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2767 states. [2019-09-20 13:22:23,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2767 states to 2767 states and 3696 transitions. [2019-09-20 13:22:23,300 INFO L78 Accepts]: Start accepts. Automaton has 2767 states and 3696 transitions. Word has length 233 [2019-09-20 13:22:23,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:23,300 INFO L475 AbstractCegarLoop]: Abstraction has 2767 states and 3696 transitions. [2019-09-20 13:22:23,301 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:22:23,301 INFO L276 IsEmpty]: Start isEmpty. Operand 2767 states and 3696 transitions. [2019-09-20 13:22:23,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2019-09-20 13:22:23,315 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:23,316 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:22:23,316 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:23,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:23,317 INFO L82 PathProgramCache]: Analyzing trace with hash 799570743, now seen corresponding path program 1 times [2019-09-20 13:22:23,317 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:23,317 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:23,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:23,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:23,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:23,763 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2019-09-20 13:22:23,763 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:23,763 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:22:23,765 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:22:23,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:22:23,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:22:23,765 INFO L87 Difference]: Start difference. First operand 2767 states and 3696 transitions. Second operand 6 states.