java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:02:29,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:02:29,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:02:29,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:02:29,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:02:29,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:02:29,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:02:29,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:02:29,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:02:29,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:02:29,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:02:29,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:02:29,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:02:29,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:02:29,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:02:29,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:02:29,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:02:29,843 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:02:29,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:02:29,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:02:29,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:02:29,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:02:29,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:02:29,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:02:29,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:02:29,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:02:29,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:02:29,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:02:29,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:02:29,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:02:29,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:02:29,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:02:29,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:02:29,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:02:29,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:02:29,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:02:29,863 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:02:29,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:02:29,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:02:29,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:02:29,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:02:29,866 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:02:29,885 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:02:29,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:02:29,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:02:29,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:02:29,888 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:02:29,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:02:29,889 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:02:29,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:02:29,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:02:29,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:02:29,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:02:29,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:02:29,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:02:29,891 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:02:29,891 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:02:29,891 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:02:29,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:02:29,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:02:29,892 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:02:29,892 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:02:29,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:02:29,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:02:29,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:02:29,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:02:29,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:02:29,894 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:02:29,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:02:29,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:02:29,895 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:02:30,159 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:02:30,173 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:02:30,177 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:02:30,178 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:02:30,179 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:02:30,180 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-15 01:02:30,243 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28ac4c4b4/eba0de912f0c4208b12f39e0764fa219/FLAG58746ada1 [2019-10-15 01:02:31,147 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:02:31,149 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-15 01:02:31,205 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28ac4c4b4/eba0de912f0c4208b12f39e0764fa219/FLAG58746ada1 [2019-10-15 01:02:31,621 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28ac4c4b4/eba0de912f0c4208b12f39e0764fa219 [2019-10-15 01:02:31,631 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:02:31,632 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:02:31,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:02:31,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:02:31,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:02:31,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:02:31" (1/1) ... [2019-10-15 01:02:31,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d8ce6b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:02:31, skipping insertion in model container [2019-10-15 01:02:31,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:02:31" (1/1) ... [2019-10-15 01:02:31,650 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:02:31,797 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:02:33,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:02:33,901 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:02:34,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:02:34,703 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:02:34,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:02:34 WrapperNode [2019-10-15 01:02:34,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:02:34,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:02:34,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:02:34,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:02:34,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:02:34" (1/1) ... [2019-10-15 01:02:34,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:02:34" (1/1) ... [2019-10-15 01:02:34,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:02:34" (1/1) ... [2019-10-15 01:02:34,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:02:34" (1/1) ... [2019-10-15 01:02:34,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:02:34" (1/1) ... [2019-10-15 01:02:34,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:02:34" (1/1) ... [2019-10-15 01:02:35,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:02:34" (1/1) ... [2019-10-15 01:02:35,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:02:35,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:02:35,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:02:35,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:02:35,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:02:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:02:35,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:02:35,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:02:35,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-15 01:02:35,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2019-10-15 01:02:35,115 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-15 01:02:35,115 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-10-15 01:02:35,116 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-10-15 01:02:35,116 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-10-15 01:02:35,116 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-15 01:02:35,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-15 01:02:35,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-15 01:02:35,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-15 01:02:35,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-15 01:02:35,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-15 01:02:35,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-15 01:02:35,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-15 01:02:35,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-15 01:02:35,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2019-10-15 01:02:35,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-15 01:02:35,119 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-15 01:02:35,119 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-15 01:02:35,119 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-15 01:02:35,119 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2019-10-15 01:02:35,119 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-15 01:02:35,119 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2019-10-15 01:02:35,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 01:02:35,120 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 01:02:35,120 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-15 01:02:35,120 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-15 01:02:35,120 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2019-10-15 01:02:35,121 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-10-15 01:02:35,121 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2019-10-15 01:02:35,121 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-10-15 01:02:35,121 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice [2019-10-15 01:02:35,121 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2019-10-15 01:02:35,121 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2019-10-15 01:02:35,122 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2019-10-15 01:02:35,122 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2019-10-15 01:02:35,122 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2019-10-15 01:02:35,122 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2019-10-15 01:02:35,123 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_queue_stopped [2019-10-15 01:02:35,123 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2019-10-15 01:02:35,123 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2019-10-15 01:02:35,123 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc_bufs [2019-10-15 01:02:35,123 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2019-10-15 01:02:35,124 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_realloc_bufs [2019-10-15 01:02:35,124 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_lock [2019-10-15 01:02:35,124 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2019-10-15 01:02:35,124 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2019-10-15 01:02:35,125 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_encaps [2019-10-15 01:02:35,125 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_write_wakeup [2019-10-15 01:02:35,125 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_tx_timeout [2019-10-15 01:02:35,125 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_xmit [2019-10-15 01:02:35,125 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_close [2019-10-15 01:02:35,126 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_open [2019-10-15 01:02:35,126 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_change_mtu [2019-10-15 01:02:35,126 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_get_stats64 [2019-10-15 01:02:35,126 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_init [2019-10-15 01:02:35,127 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_uninit [2019-10-15 01:02:35,127 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_netdev [2019-10-15 01:02:35,127 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_setup [2019-10-15 01:02:35,127 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_receive_buf [2019-10-15 01:02:35,128 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_sync [2019-10-15 01:02:35,128 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc [2019-10-15 01:02:35,128 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_open [2019-10-15 01:02:35,128 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2019-10-15 01:02:35,129 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_hangup [2019-10-15 01:02:35,129 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc [2019-10-15 01:02:35,130 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc [2019-10-15 01:02:35,130 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc6 [2019-10-15 01:02:35,130 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc6 [2019-10-15 01:02:35,130 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2019-10-15 01:02:35,131 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_compat_ioctl [2019-10-15 01:02:35,132 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2019-10-15 01:02:35,132 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_init [2019-10-15 01:02:35,132 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_exit [2019-10-15 01:02:35,133 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_outfill [2019-10-15 01:02:35,133 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_keepalive [2019-10-15 01:02:35,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_3 [2019-10-15 01:02:35,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_4 [2019-10-15 01:02:35,135 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2019-10-15 01:02:35,136 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2019-10-15 01:02:35,136 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2019-10-15 01:02:35,136 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_2 [2019-10-15 01:02:35,137 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2019-10-15 01:02:35,137 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2019-10-15 01:02:35,137 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2019-10-15 01:02:35,138 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2019-10-15 01:02:35,139 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:02:35,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_1 [2019-10-15 01:02:35,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_2 [2019-10-15 01:02:35,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_sl_alloc_bufs_3 [2019-10-15 01:02:35,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdevice_4 [2019-10-15 01:02:35,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_5 [2019-10-15 01:02:35,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_6 [2019-10-15 01:02:35,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_7 [2019-10-15 01:02:35,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_8 [2019-10-15 01:02:35,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_9 [2019-10-15 01:02:35,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_10 [2019-10-15 01:02:35,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_11 [2019-10-15 01:02:35,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_12 [2019-10-15 01:02:35,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_13 [2019-10-15 01:02:35,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_14 [2019-10-15 01:02:35,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_15 [2019-10-15 01:02:35,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_16 [2019-10-15 01:02:35,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_17 [2019-10-15 01:02:35,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_slip_open_18 [2019-10-15 01:02:35,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-15 01:02:35,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_callback_ret_val [2019-10-15 01:02:35,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2019-10-15 01:02:35,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-15 01:02:35,143 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-15 01:02:35,143 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-15 01:02:35,143 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2019-10-15 01:02:35,144 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-15 01:02:35,144 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2019-10-15 01:02:35,144 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2019-10-15 01:02:35,144 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2019-10-15 01:02:35,144 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-10-15 01:02:35,144 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2019-10-15 01:02:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2019-10-15 01:02:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-10-15 01:02:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2019-10-15 01:02:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2019-10-15 01:02:35,146 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2019-10-15 01:02:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-10-15 01:02:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 01:02:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 01:02:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-15 01:02:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-10-15 01:02:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2019-10-15 01:02:35,148 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2019-10-15 01:02:35,148 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2019-10-15 01:02:35,148 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-15 01:02:35,148 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdevice [2019-10-15 01:02:35,149 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2019-10-15 01:02:35,149 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2019-10-15 01:02:35,153 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-15 01:02:35,154 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_compress [2019-10-15 01:02:35,154 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2019-10-15 01:02:35,154 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_init [2019-10-15 01:02:35,154 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_remember [2019-10-15 01:02:35,155 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_uncompress [2019-10-15 01:02:35,155 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_chars_in_buffer [2019-10-15 01:02:35,164 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2019-10-15 01:02:35,164 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2019-10-15 01:02:35,165 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_mode_ioctl [2019-10-15 01:02:35,165 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_ldisc [2019-10-15 01:02:35,165 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_ldisc [2019-10-15 01:02:35,166 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-10-15 01:02:35,166 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice_queue [2019-10-15 01:02:35,166 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-15 01:02:35,167 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 01:02:35,167 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 01:02:35,167 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-15 01:02:35,167 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-15 01:02:35,167 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-15 01:02:35,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:02:35,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-15 01:02:35,168 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-15 01:02:35,168 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-10-15 01:02:35,168 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-10-15 01:02:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-10-15 01:02:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-15 01:02:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:02:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-15 01:02:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-15 01:02:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-15 01:02:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-15 01:02:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:02:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 01:02:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-15 01:02:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:02:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 01:02:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 01:02:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 01:02:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-15 01:02:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:02:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-15 01:02:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-15 01:02:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-15 01:02:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-15 01:02:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-15 01:02:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-15 01:02:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-15 01:02:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-15 01:02:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-15 01:02:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2019-10-15 01:02:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_callback_ret_val [2019-10-15 01:02:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-15 01:02:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-15 01:02:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-10-15 01:02:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-15 01:02:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-15 01:02:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-15 01:02:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2019-10-15 01:02:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-15 01:02:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2019-10-15 01:02:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-15 01:02:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-15 01:02:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2019-10-15 01:02:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-15 01:02:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2019-10-15 01:02:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2019-10-15 01:02:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2019-10-15 01:02:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_2 [2019-10-15 01:02:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_8 [2019-10-15 01:02:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_10 [2019-10-15 01:02:35,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_12 [2019-10-15 01:02:35,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_14 [2019-10-15 01:02:35,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_16 [2019-10-15 01:02:35,179 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-10-15 01:02:35,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_7 [2019-10-15 01:02:35,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_9 [2019-10-15 01:02:35,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_11 [2019-10-15 01:02:35,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_13 [2019-10-15 01:02:35,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_15 [2019-10-15 01:02:35,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_17 [2019-10-15 01:02:35,181 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2019-10-15 01:02:35,181 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-10-15 01:02:35,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_1 [2019-10-15 01:02:35,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_5 [2019-10-15 01:02:35,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_6 [2019-10-15 01:02:35,181 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 01:02:35,182 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 01:02:35,182 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 01:02:35,182 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-15 01:02:35,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_3 [2019-10-15 01:02:35,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_4 [2019-10-15 01:02:35,183 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2019-10-15 01:02:35,183 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2019-10-15 01:02:35,183 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2019-10-15 01:02:35,183 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_2 [2019-10-15 01:02:35,183 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2019-10-15 01:02:35,184 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2019-10-15 01:02:35,184 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2019-10-15 01:02:35,184 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2019-10-15 01:02:35,184 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-15 01:02:35,184 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-15 01:02:35,185 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-10-15 01:02:35,185 INFO L130 BoogieDeclarations]: Found specification of procedure tty_chars_in_buffer [2019-10-15 01:02:35,185 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2019-10-15 01:02:35,185 INFO L130 BoogieDeclarations]: Found specification of procedure tty_mode_ioctl [2019-10-15 01:02:35,185 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2019-10-15 01:02:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_ldisc [2019-10-15 01:02:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_ldisc [2019-10-15 01:02:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2019-10-15 01:02:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-15 01:02:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2019-10-15 01:02:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:02:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:02:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2019-10-15 01:02:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-10-15 01:02:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2019-10-15 01:02:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-10-15 01:02:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2019-10-15 01:02:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdevice [2019-10-15 01:02:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdevice_4 [2019-10-15 01:02:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice_queue [2019-10-15 01:02:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice [2019-10-15 01:02:35,189 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-10-15 01:02:35,189 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2019-10-15 01:02:35,189 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2019-10-15 01:02:35,190 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2019-10-15 01:02:35,192 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2019-10-15 01:02:35,192 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2019-10-15 01:02:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2019-10-15 01:02:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2019-10-15 01:02:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:02:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2019-10-15 01:02:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_queue_stopped [2019-10-15 01:02:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2019-10-15 01:02:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2019-10-15 01:02:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2019-10-15 01:02:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2019-10-15 01:02:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2019-10-15 01:02:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-10-15 01:02:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2019-10-15 01:02:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2019-10-15 01:02:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_init [2019-10-15 01:02:35,195 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2019-10-15 01:02:35,195 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_compress [2019-10-15 01:02:35,195 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_uncompress [2019-10-15 01:02:35,195 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_remember [2019-10-15 01:02:35,195 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc [2019-10-15 01:02:35,195 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc [2019-10-15 01:02:35,196 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc6 [2019-10-15 01:02:35,196 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc6 [2019-10-15 01:02:35,196 INFO L130 BoogieDeclarations]: Found specification of procedure sl_keepalive [2019-10-15 01:02:35,196 INFO L130 BoogieDeclarations]: Found specification of procedure sl_outfill [2019-10-15 01:02:35,196 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2019-10-15 01:02:35,197 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc_bufs [2019-10-15 01:02:35,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_sl_alloc_bufs_3 [2019-10-15 01:02:35,197 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2019-10-15 01:02:35,197 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-15 01:02:35,197 INFO L130 BoogieDeclarations]: Found specification of procedure sl_realloc_bufs [2019-10-15 01:02:35,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-15 01:02:35,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:02:35,198 INFO L130 BoogieDeclarations]: Found specification of procedure sl_lock [2019-10-15 01:02:35,198 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2019-10-15 01:02:35,198 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2019-10-15 01:02:35,198 INFO L130 BoogieDeclarations]: Found specification of procedure sl_encaps [2019-10-15 01:02:35,199 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-15 01:02:35,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:02:35,199 INFO L130 BoogieDeclarations]: Found specification of procedure slip_write_wakeup [2019-10-15 01:02:35,199 INFO L130 BoogieDeclarations]: Found specification of procedure sl_tx_timeout [2019-10-15 01:02:35,199 INFO L130 BoogieDeclarations]: Found specification of procedure sl_xmit [2019-10-15 01:02:35,199 INFO L130 BoogieDeclarations]: Found specification of procedure sl_close [2019-10-15 01:02:35,200 INFO L130 BoogieDeclarations]: Found specification of procedure sl_open [2019-10-15 01:02:35,200 INFO L130 BoogieDeclarations]: Found specification of procedure sl_change_mtu [2019-10-15 01:02:35,200 INFO L130 BoogieDeclarations]: Found specification of procedure sl_get_stats64 [2019-10-15 01:02:35,200 INFO L130 BoogieDeclarations]: Found specification of procedure sl_init [2019-10-15 01:02:35,200 INFO L130 BoogieDeclarations]: Found specification of procedure sl_uninit [2019-10-15 01:02:35,200 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_netdev [2019-10-15 01:02:35,200 INFO L130 BoogieDeclarations]: Found specification of procedure sl_setup [2019-10-15 01:02:35,201 INFO L130 BoogieDeclarations]: Found specification of procedure slip_receive_buf [2019-10-15 01:02:35,201 INFO L130 BoogieDeclarations]: Found specification of procedure sl_sync [2019-10-15 01:02:35,201 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc [2019-10-15 01:02:35,201 INFO L130 BoogieDeclarations]: Found specification of procedure slip_open [2019-10-15 01:02:35,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_slip_open_18 [2019-10-15 01:02:35,201 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2019-10-15 01:02:35,201 INFO L130 BoogieDeclarations]: Found specification of procedure slip_hangup [2019-10-15 01:02:35,201 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2019-10-15 01:02:35,202 INFO L130 BoogieDeclarations]: Found specification of procedure slip_compat_ioctl [2019-10-15 01:02:35,202 INFO L130 BoogieDeclarations]: Found specification of procedure slip_init [2019-10-15 01:02:35,202 INFO L130 BoogieDeclarations]: Found specification of procedure slip_exit [2019-10-15 01:02:35,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 01:02:35,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 01:02:35,202 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2019-10-15 01:02:35,202 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:02:35,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-15 01:02:35,203 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 01:02:35,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 01:02:35,203 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:02:35,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:02:35,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 01:02:35,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:02:35,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:02:35,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-15 01:02:35,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-15 01:02:35,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-15 01:02:35,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-15 01:02:36,431 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-15 01:02:39,687 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:02:39,687 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 01:02:39,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:02:39 BoogieIcfgContainer [2019-10-15 01:02:39,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:02:39,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:02:39,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:02:39,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:02:39,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:02:31" (1/3) ... [2019-10-15 01:02:39,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d94b10f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:02:39, skipping insertion in model container [2019-10-15 01:02:39,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:02:34" (2/3) ... [2019-10-15 01:02:39,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d94b10f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:02:39, skipping insertion in model container [2019-10-15 01:02:39,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:02:39" (3/3) ... [2019-10-15 01:02:39,698 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-15 01:02:39,707 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:02:39,720 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:02:39,732 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:02:39,772 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:02:39,773 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:02:39,773 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:02:39,773 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:02:39,773 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:02:39,773 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:02:39,773 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:02:39,773 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:02:39,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2019-10-15 01:02:39,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-15 01:02:39,860 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:02:39,861 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:02:39,864 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:02:39,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:02:39,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1003017911, now seen corresponding path program 1 times [2019-10-15 01:02:39,877 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:02:39,877 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307614235] [2019-10-15 01:02:39,878 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:39,878 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:39,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:02:40,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:02:40,560 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2019-10-15 01:02:40,561 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307614235] [2019-10-15 01:02:40,562 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:02:40,562 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:02:40,562 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811756858] [2019-10-15 01:02:40,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:02:40,569 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:02:40,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:02:40,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:02:40,587 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 3 states. [2019-10-15 01:02:40,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:02:40,917 INFO L93 Difference]: Finished difference Result 3588 states and 4861 transitions. [2019-10-15 01:02:40,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:02:40,919 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2019-10-15 01:02:40,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:02:40,953 INFO L225 Difference]: With dead ends: 3588 [2019-10-15 01:02:40,953 INFO L226 Difference]: Without dead ends: 2080 [2019-10-15 01:02:40,965 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:02:40,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2080 states. [2019-10-15 01:02:41,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2080 to 2080. [2019-10-15 01:02:41,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2080 states. [2019-10-15 01:02:41,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 2799 transitions. [2019-10-15 01:02:41,320 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 2799 transitions. Word has length 166 [2019-10-15 01:02:41,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:02:41,321 INFO L462 AbstractCegarLoop]: Abstraction has 2080 states and 2799 transitions. [2019-10-15 01:02:41,321 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:02:41,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 2799 transitions. [2019-10-15 01:02:41,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-15 01:02:41,336 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:02:41,336 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:02:41,337 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:02:41,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:02:41,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1537564376, now seen corresponding path program 1 times [2019-10-15 01:02:41,338 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:02:41,338 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029571622] [2019-10-15 01:02:41,338 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:41,339 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:41,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:02:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:02:41,724 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2019-10-15 01:02:41,724 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029571622] [2019-10-15 01:02:41,724 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:02:41,725 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:02:41,725 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65880680] [2019-10-15 01:02:41,728 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:02:41,728 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:02:41,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:02:41,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:02:41,729 INFO L87 Difference]: Start difference. First operand 2080 states and 2799 transitions. Second operand 5 states. [2019-10-15 01:02:46,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:02:46,800 INFO L93 Difference]: Finished difference Result 4110 states and 5539 transitions. [2019-10-15 01:02:46,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:02:46,801 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 234 [2019-10-15 01:02:46,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:02:46,815 INFO L225 Difference]: With dead ends: 4110 [2019-10-15 01:02:46,815 INFO L226 Difference]: Without dead ends: 2080 [2019-10-15 01:02:46,823 INFO L600 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 [2019-10-15 01:02:46,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2080 states. [2019-10-15 01:02:46,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2080 to 2080. [2019-10-15 01:02:46,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2080 states. [2019-10-15 01:02:46,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 2797 transitions. [2019-10-15 01:02:46,922 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 2797 transitions. Word has length 234 [2019-10-15 01:02:46,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:02:46,923 INFO L462 AbstractCegarLoop]: Abstraction has 2080 states and 2797 transitions. [2019-10-15 01:02:46,923 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:02:46,923 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 2797 transitions. [2019-10-15 01:02:46,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-15 01:02:46,932 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:02:46,932 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:02:46,932 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:02:46,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:02:46,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1762709222, now seen corresponding path program 1 times [2019-10-15 01:02:46,933 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:02:46,933 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084152663] [2019-10-15 01:02:46,934 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:46,934 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:46,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:02:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:02:47,349 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2019-10-15 01:02:47,350 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084152663] [2019-10-15 01:02:47,350 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:02:47,350 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 01:02:47,350 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93677611] [2019-10-15 01:02:47,351 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 01:02:47,352 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:02:47,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 01:02:47,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:02:47,352 INFO L87 Difference]: Start difference. First operand 2080 states and 2797 transitions. Second operand 10 states. [2019-10-15 01:02:47,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:02:47,563 INFO L93 Difference]: Finished difference Result 4120 states and 5543 transitions. [2019-10-15 01:02:47,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:02:47,564 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 234 [2019-10-15 01:02:47,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:02:47,579 INFO L225 Difference]: With dead ends: 4120 [2019-10-15 01:02:47,580 INFO L226 Difference]: Without dead ends: 2082 [2019-10-15 01:02:47,588 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:02:47,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2019-10-15 01:02:47,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 2080. [2019-10-15 01:02:47,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2080 states. [2019-10-15 01:02:47,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 2795 transitions. [2019-10-15 01:02:47,680 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 2795 transitions. Word has length 234 [2019-10-15 01:02:47,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:02:47,681 INFO L462 AbstractCegarLoop]: Abstraction has 2080 states and 2795 transitions. [2019-10-15 01:02:47,681 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 01:02:47,681 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 2795 transitions. [2019-10-15 01:02:47,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-10-15 01:02:47,689 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:02:47,689 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:02:47,689 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:02:47,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:02:47,690 INFO L82 PathProgramCache]: Analyzing trace with hash 666500382, now seen corresponding path program 1 times [2019-10-15 01:02:47,690 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:02:47,690 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329810167] [2019-10-15 01:02:47,690 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:47,691 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:47,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:02:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:02:48,026 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2019-10-15 01:02:48,027 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329810167] [2019-10-15 01:02:48,028 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:02:48,028 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:02:48,029 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024694873] [2019-10-15 01:02:48,029 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:02:48,030 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:02:48,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:02:48,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:02:48,031 INFO L87 Difference]: Start difference. First operand 2080 states and 2795 transitions. Second operand 7 states. [2019-10-15 01:02:48,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:02:48,155 INFO L93 Difference]: Finished difference Result 2094 states and 2809 transitions. [2019-10-15 01:02:48,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:02:48,155 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 241 [2019-10-15 01:02:48,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:02:48,169 INFO L225 Difference]: With dead ends: 2094 [2019-10-15 01:02:48,169 INFO L226 Difference]: Without dead ends: 2091 [2019-10-15 01:02:48,171 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:02:48,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2091 states. [2019-10-15 01:02:48,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2091 to 2088. [2019-10-15 01:02:48,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2088 states. [2019-10-15 01:02:48,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 2803 transitions. [2019-10-15 01:02:48,262 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 2803 transitions. Word has length 241 [2019-10-15 01:02:48,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:02:48,263 INFO L462 AbstractCegarLoop]: Abstraction has 2088 states and 2803 transitions. [2019-10-15 01:02:48,263 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:02:48,263 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 2803 transitions. [2019-10-15 01:02:48,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2019-10-15 01:02:48,274 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:02:48,274 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:02:48,275 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:02:48,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:02:48,275 INFO L82 PathProgramCache]: Analyzing trace with hash 457310605, now seen corresponding path program 1 times [2019-10-15 01:02:48,276 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:02:48,276 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322763227] [2019-10-15 01:02:48,276 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:48,276 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:48,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:02:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:02:48,615 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2019-10-15 01:02:48,615 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322763227] [2019-10-15 01:02:48,616 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:02:48,616 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:02:48,616 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213031347] [2019-10-15 01:02:48,617 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:02:48,619 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:02:48,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:02:48,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:02:48,619 INFO L87 Difference]: Start difference. First operand 2088 states and 2803 transitions. Second operand 8 states. [2019-10-15 01:02:48,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:02:48,794 INFO L93 Difference]: Finished difference Result 2122 states and 2843 transitions. [2019-10-15 01:02:48,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:02:48,795 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 257 [2019-10-15 01:02:48,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:02:48,809 INFO L225 Difference]: With dead ends: 2122 [2019-10-15 01:02:48,809 INFO L226 Difference]: Without dead ends: 2119 [2019-10-15 01:02:48,811 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:02:48,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2019-10-15 01:02:48,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 2090. [2019-10-15 01:02:48,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2090 states. [2019-10-15 01:02:48,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 2806 transitions. [2019-10-15 01:02:48,913 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 2806 transitions. Word has length 257 [2019-10-15 01:02:48,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:02:48,918 INFO L462 AbstractCegarLoop]: Abstraction has 2090 states and 2806 transitions. [2019-10-15 01:02:48,918 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:02:48,919 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 2806 transitions. [2019-10-15 01:02:48,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2019-10-15 01:02:48,931 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:02:48,932 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:02:48,932 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:02:48,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:02:48,933 INFO L82 PathProgramCache]: Analyzing trace with hash 903680251, now seen corresponding path program 1 times [2019-10-15 01:02:48,934 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:02:48,934 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743961107] [2019-10-15 01:02:48,934 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:48,935 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:48,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:02:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:02:49,327 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2019-10-15 01:02:49,328 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743961107] [2019-10-15 01:02:49,328 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:02:49,328 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:02:49,332 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850796515] [2019-10-15 01:02:49,333 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:02:49,333 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:02:49,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:02:49,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:02:49,334 INFO L87 Difference]: Start difference. First operand 2090 states and 2806 transitions. Second operand 4 states. [2019-10-15 01:02:51,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:02:51,705 INFO L93 Difference]: Finished difference Result 4809 states and 6456 transitions. [2019-10-15 01:02:51,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:02:51,705 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 291 [2019-10-15 01:02:51,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:02:51,722 INFO L225 Difference]: With dead ends: 4809 [2019-10-15 01:02:51,723 INFO L226 Difference]: Without dead ends: 2769 [2019-10-15 01:02:51,732 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:02:51,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2019-10-15 01:02:51,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 2768. [2019-10-15 01:02:51,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2768 states. [2019-10-15 01:02:51,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2768 states to 2768 states and 3705 transitions. [2019-10-15 01:02:51,868 INFO L78 Accepts]: Start accepts. Automaton has 2768 states and 3705 transitions. Word has length 291 [2019-10-15 01:02:51,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:02:51,869 INFO L462 AbstractCegarLoop]: Abstraction has 2768 states and 3705 transitions. [2019-10-15 01:02:51,870 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:02:51,870 INFO L276 IsEmpty]: Start isEmpty. Operand 2768 states and 3705 transitions. [2019-10-15 01:02:51,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2019-10-15 01:02:51,891 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:02:51,891 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:02:51,892 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:02:51,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:02:51,892 INFO L82 PathProgramCache]: Analyzing trace with hash 592433216, now seen corresponding path program 1 times [2019-10-15 01:02:51,892 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:02:51,893 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120715894] [2019-10-15 01:02:51,893 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:51,893 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:51,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:02:51,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:02:52,229 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2019-10-15 01:02:52,230 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120715894] [2019-10-15 01:02:52,230 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:02:52,230 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:02:52,231 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702092384] [2019-10-15 01:02:52,233 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:02:52,233 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:02:52,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:02:52,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:02:52,234 INFO L87 Difference]: Start difference. First operand 2768 states and 3705 transitions. Second operand 3 states. [2019-10-15 01:02:52,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:02:52,395 INFO L93 Difference]: Finished difference Result 5489 states and 7402 transitions. [2019-10-15 01:02:52,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:02:52,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 293 [2019-10-15 01:02:52,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:02:52,417 INFO L225 Difference]: With dead ends: 5489 [2019-10-15 01:02:52,418 INFO L226 Difference]: Without dead ends: 2771 [2019-10-15 01:02:52,430 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:02:52,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2771 states. [2019-10-15 01:02:52,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2771 to 2768. [2019-10-15 01:02:52,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2768 states. [2019-10-15 01:02:52,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2768 states to 2768 states and 3696 transitions. [2019-10-15 01:02:52,621 INFO L78 Accepts]: Start accepts. Automaton has 2768 states and 3696 transitions. Word has length 293 [2019-10-15 01:02:52,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:02:52,624 INFO L462 AbstractCegarLoop]: Abstraction has 2768 states and 3696 transitions. [2019-10-15 01:02:52,624 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:02:52,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2768 states and 3696 transitions. [2019-10-15 01:02:52,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2019-10-15 01:02:52,648 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:02:52,648 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:02:52,649 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:02:52,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:02:52,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1176691019, now seen corresponding path program 1 times [2019-10-15 01:02:52,650 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:02:52,650 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055568081] [2019-10-15 01:02:52,651 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:52,651 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:52,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:02:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:02:53,076 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2019-10-15 01:02:53,077 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055568081] [2019-10-15 01:02:53,077 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:02:53,077 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:02:53,078 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804833698] [2019-10-15 01:02:53,079 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:02:53,079 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:02:53,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:02:53,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:02:53,080 INFO L87 Difference]: Start difference. First operand 2768 states and 3696 transitions. Second operand 11 states. [2019-10-15 01:02:53,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:02:53,423 INFO L93 Difference]: Finished difference Result 4847 states and 6488 transitions. [2019-10-15 01:02:53,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-15 01:02:53,425 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 296 [2019-10-15 01:02:53,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:02:53,441 INFO L225 Difference]: With dead ends: 4847 [2019-10-15 01:02:53,442 INFO L226 Difference]: Without dead ends: 2793 [2019-10-15 01:02:53,451 INFO L600 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 [2019-10-15 01:02:53,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2793 states. [2019-10-15 01:02:53,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2793 to 2792. [2019-10-15 01:02:53,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2792 states. [2019-10-15 01:02:53,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 3729 transitions. [2019-10-15 01:02:53,578 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 3729 transitions. Word has length 296 [2019-10-15 01:02:53,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:02:53,579 INFO L462 AbstractCegarLoop]: Abstraction has 2792 states and 3729 transitions. [2019-10-15 01:02:53,579 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:02:53,579 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 3729 transitions. [2019-10-15 01:02:53,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2019-10-15 01:02:53,595 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:02:53,596 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:02:53,596 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:02:53,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:02:53,596 INFO L82 PathProgramCache]: Analyzing trace with hash -765487446, now seen corresponding path program 1 times [2019-10-15 01:02:53,597 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:02:53,597 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378944812] [2019-10-15 01:02:53,597 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:53,597 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:53,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:02:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:02:54,050 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2019-10-15 01:02:54,051 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378944812] [2019-10-15 01:02:54,051 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:02:54,052 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:02:54,052 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908340912] [2019-10-15 01:02:54,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:02:54,053 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:02:54,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:02:54,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:02:54,054 INFO L87 Difference]: Start difference. First operand 2792 states and 3729 transitions. Second operand 5 states. [2019-10-15 01:02:54,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:02:54,215 INFO L93 Difference]: Finished difference Result 4856 states and 6502 transitions. [2019-10-15 01:02:54,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:02:54,216 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 296 [2019-10-15 01:02:54,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:02:54,231 INFO L225 Difference]: With dead ends: 4856 [2019-10-15 01:02:54,232 INFO L226 Difference]: Without dead ends: 2800 [2019-10-15 01:02:54,241 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:02:54,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2800 states. [2019-10-15 01:02:54,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2800 to 2796. [2019-10-15 01:02:54,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2796 states. [2019-10-15 01:02:54,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2796 states to 2796 states and 3733 transitions. [2019-10-15 01:02:54,381 INFO L78 Accepts]: Start accepts. Automaton has 2796 states and 3733 transitions. Word has length 296 [2019-10-15 01:02:54,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:02:54,383 INFO L462 AbstractCegarLoop]: Abstraction has 2796 states and 3733 transitions. [2019-10-15 01:02:54,383 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:02:54,383 INFO L276 IsEmpty]: Start isEmpty. Operand 2796 states and 3733 transitions. [2019-10-15 01:02:54,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2019-10-15 01:02:54,411 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:02:54,412 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:02:54,412 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:02:54,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:02:54,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1523846816, now seen corresponding path program 1 times [2019-10-15 01:02:54,413 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:02:54,414 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19350177] [2019-10-15 01:02:54,414 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:54,414 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:54,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:02:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:02:54,762 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2019-10-15 01:02:54,762 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19350177] [2019-10-15 01:02:54,762 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:02:54,763 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:02:54,763 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130351839] [2019-10-15 01:02:54,763 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:02:54,764 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:02:54,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:02:54,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:02:54,764 INFO L87 Difference]: Start difference. First operand 2796 states and 3733 transitions. Second operand 3 states. [2019-10-15 01:02:54,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:02:54,987 INFO L93 Difference]: Finished difference Result 4859 states and 6507 transitions. [2019-10-15 01:02:54,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:02:54,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 323 [2019-10-15 01:02:54,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:02:55,011 INFO L225 Difference]: With dead ends: 4859 [2019-10-15 01:02:55,011 INFO L226 Difference]: Without dead ends: 2799 [2019-10-15 01:02:55,024 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:02:55,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2799 states. [2019-10-15 01:02:55,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2799 to 2797. [2019-10-15 01:02:55,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2797 states. [2019-10-15 01:02:55,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 3734 transitions. [2019-10-15 01:02:55,218 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 3734 transitions. Word has length 323 [2019-10-15 01:02:55,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:02:55,219 INFO L462 AbstractCegarLoop]: Abstraction has 2797 states and 3734 transitions. [2019-10-15 01:02:55,219 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:02:55,219 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 3734 transitions. [2019-10-15 01:02:55,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2019-10-15 01:02:55,243 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:02:55,243 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:02:55,244 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:02:55,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:02:55,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1895822625, now seen corresponding path program 1 times [2019-10-15 01:02:55,245 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:02:55,245 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550918972] [2019-10-15 01:02:55,245 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:55,246 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:55,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:02:55,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:02:55,582 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2019-10-15 01:02:55,583 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550918972] [2019-10-15 01:02:55,583 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:02:55,583 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:02:55,583 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092594233] [2019-10-15 01:02:55,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:02:55,584 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:02:55,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:02:55,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:02:55,589 INFO L87 Difference]: Start difference. First operand 2797 states and 3734 transitions. Second operand 3 states. [2019-10-15 01:02:55,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:02:55,700 INFO L93 Difference]: Finished difference Result 4849 states and 6494 transitions. [2019-10-15 01:02:55,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:02:55,702 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 325 [2019-10-15 01:02:55,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:02:55,719 INFO L225 Difference]: With dead ends: 4849 [2019-10-15 01:02:55,719 INFO L226 Difference]: Without dead ends: 2788 [2019-10-15 01:02:55,728 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:02:55,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2788 states. [2019-10-15 01:02:55,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2788 to 2783. [2019-10-15 01:02:55,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2783 states. [2019-10-15 01:02:55,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2783 states to 2783 states and 3715 transitions. [2019-10-15 01:02:55,846 INFO L78 Accepts]: Start accepts. Automaton has 2783 states and 3715 transitions. Word has length 325 [2019-10-15 01:02:55,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:02:55,847 INFO L462 AbstractCegarLoop]: Abstraction has 2783 states and 3715 transitions. [2019-10-15 01:02:55,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:02:55,847 INFO L276 IsEmpty]: Start isEmpty. Operand 2783 states and 3715 transitions. [2019-10-15 01:02:55,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2019-10-15 01:02:55,867 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:02:55,867 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:02:55,868 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:02:55,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:02:55,869 INFO L82 PathProgramCache]: Analyzing trace with hash 823889841, now seen corresponding path program 1 times [2019-10-15 01:02:55,869 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:02:55,869 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695648311] [2019-10-15 01:02:55,869 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:55,869 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:02:55,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:02:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:02:56,241 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2019-10-15 01:02:56,242 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695648311] [2019-10-15 01:02:56,242 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:02:56,242 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:02:56,243 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847971216] [2019-10-15 01:02:56,243 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:02:56,243 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:02:56,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:02:56,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:02:56,244 INFO L87 Difference]: Start difference. First operand 2783 states and 3715 transitions. Second operand 6 states.