/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 03:52:34,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 03:52:34,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 03:52:34,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 03:52:34,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 03:52:34,072 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 03:52:34,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 03:52:34,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 03:52:34,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 03:52:34,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 03:52:34,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 03:52:34,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 03:52:34,091 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 03:52:34,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 03:52:34,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 03:52:34,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 03:52:34,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 03:52:34,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 03:52:34,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 03:52:34,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 03:52:34,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 03:52:34,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 03:52:34,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 03:52:34,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 03:52:34,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 03:52:34,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 03:52:34,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 03:52:34,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 03:52:34,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 03:52:34,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 03:52:34,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 03:52:34,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 03:52:34,127 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 03:52:34,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 03:52:34,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 03:52:34,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 03:52:34,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 03:52:34,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 03:52:34,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 03:52:34,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 03:52:34,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 03:52:34,133 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 [2019-11-07 03:52:34,152 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 03:52:34,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 03:52:34,155 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 03:52:34,155 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 03:52:34,155 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 03:52:34,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 03:52:34,155 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 03:52:34,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 03:52:34,156 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 03:52:34,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 03:52:34,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 03:52:34,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 03:52:34,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 03:52:34,158 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 03:52:34,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 03:52:34,158 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 03:52:34,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 03:52:34,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 03:52:34,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 03:52:34,159 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 03:52:34,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 03:52:34,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 03:52:34,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 03:52:34,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 03:52:34,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 03:52:34,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 03:52:34,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 03:52:34,161 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 03:52:34,161 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 03:52:34,439 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 03:52:34,452 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 03:52:34,456 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 03:52:34,457 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 03:52:34,457 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 03:52:34,458 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-11-07 03:52:34,522 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e16d6f90/99f7a365c0ab4347945d0da6a07a19d7/FLAG5e499e686 [2019-11-07 03:52:35,323 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 03:52:35,324 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-11-07 03:52:35,373 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e16d6f90/99f7a365c0ab4347945d0da6a07a19d7/FLAG5e499e686 [2019-11-07 03:52:35,879 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e16d6f90/99f7a365c0ab4347945d0da6a07a19d7 [2019-11-07 03:52:35,893 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 03:52:35,895 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 03:52:35,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 03:52:35,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 03:52:35,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 03:52:35,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:52:35" (1/1) ... [2019-11-07 03:52:35,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3504b202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:52:35, skipping insertion in model container [2019-11-07 03:52:35,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:52:35" (1/1) ... [2019-11-07 03:52:35,951 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 03:52:36,145 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 03:52:38,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:52:38,198 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 03:52:38,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:52:38,778 INFO L192 MainTranslator]: Completed translation [2019-11-07 03:52:38,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:52:38 WrapperNode [2019-11-07 03:52:38,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 03:52:38,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 03:52:38,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 03:52:38,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 03:52:38,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:52:38" (1/1) ... [2019-11-07 03:52:38,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:52:38" (1/1) ... [2019-11-07 03:52:38,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:52:38" (1/1) ... [2019-11-07 03:52:38,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:52:38" (1/1) ... [2019-11-07 03:52:39,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:52:38" (1/1) ... [2019-11-07 03:52:39,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:52:38" (1/1) ... [2019-11-07 03:52:39,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:52:38" (1/1) ... [2019-11-07 03:52:39,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 03:52:39,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 03:52:39,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 03:52:39,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 03:52:39,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:52:38" (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 [2019-11-07 03:52:39,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 03:52:39,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 03:52:39,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-11-07 03:52:39,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2019-11-07 03:52:39,199 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-11-07 03:52:39,200 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-11-07 03:52:39,200 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-11-07 03:52:39,200 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-11-07 03:52:39,200 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-11-07 03:52:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-07 03:52:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-07 03:52:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-11-07 03:52:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-11-07 03:52:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-11-07 03:52:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-11-07 03:52:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-11-07 03:52:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-11-07 03:52:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2019-11-07 03:52:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-11-07 03:52:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-11-07 03:52:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-11-07 03:52:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-11-07 03:52:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2019-11-07 03:52:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-11-07 03:52:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2019-11-07 03:52:39,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-11-07 03:52:39,204 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-11-07 03:52:39,204 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-11-07 03:52:39,204 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-11-07 03:52:39,204 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2019-11-07 03:52:39,205 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-11-07 03:52:39,205 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2019-11-07 03:52:39,205 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-11-07 03:52:39,205 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice [2019-11-07 03:52:39,205 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2019-11-07 03:52:39,205 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2019-11-07 03:52:39,205 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2019-11-07 03:52:39,206 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2019-11-07 03:52:39,206 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2019-11-07 03:52:39,206 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2019-11-07 03:52:39,206 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_queue_stopped [2019-11-07 03:52:39,206 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2019-11-07 03:52:39,206 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2019-11-07 03:52:39,207 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc_bufs [2019-11-07 03:52:39,207 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2019-11-07 03:52:39,207 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_realloc_bufs [2019-11-07 03:52:39,207 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_lock [2019-11-07 03:52:39,207 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2019-11-07 03:52:39,207 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2019-11-07 03:52:39,208 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_encaps [2019-11-07 03:52:39,208 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_write_wakeup [2019-11-07 03:52:39,208 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_tx_timeout [2019-11-07 03:52:39,208 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_xmit [2019-11-07 03:52:39,208 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_close [2019-11-07 03:52:39,208 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_open [2019-11-07 03:52:39,208 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_change_mtu [2019-11-07 03:52:39,209 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_get_stats64 [2019-11-07 03:52:39,209 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_init [2019-11-07 03:52:39,209 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_uninit [2019-11-07 03:52:39,209 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_netdev [2019-11-07 03:52:39,209 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_setup [2019-11-07 03:52:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_receive_buf [2019-11-07 03:52:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_sync [2019-11-07 03:52:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc [2019-11-07 03:52:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_open [2019-11-07 03:52:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2019-11-07 03:52:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_hangup [2019-11-07 03:52:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc [2019-11-07 03:52:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc [2019-11-07 03:52:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc6 [2019-11-07 03:52:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc6 [2019-11-07 03:52:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2019-11-07 03:52:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_compat_ioctl [2019-11-07 03:52:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2019-11-07 03:52:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_init [2019-11-07 03:52:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_exit [2019-11-07 03:52:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_outfill [2019-11-07 03:52:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_keepalive [2019-11-07 03:52:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_3 [2019-11-07 03:52:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_4 [2019-11-07 03:52:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2019-11-07 03:52:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2019-11-07 03:52:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2019-11-07 03:52:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_2 [2019-11-07 03:52:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2019-11-07 03:52:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2019-11-07 03:52:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2019-11-07 03:52:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2019-11-07 03:52:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 03:52:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_1 [2019-11-07 03:52:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_2 [2019-11-07 03:52:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_sl_alloc_bufs_3 [2019-11-07 03:52:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdevice_4 [2019-11-07 03:52:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_5 [2019-11-07 03:52:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_6 [2019-11-07 03:52:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_7 [2019-11-07 03:52:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_8 [2019-11-07 03:52:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_9 [2019-11-07 03:52:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_10 [2019-11-07 03:52:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_11 [2019-11-07 03:52:39,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_12 [2019-11-07 03:52:39,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_13 [2019-11-07 03:52:39,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_14 [2019-11-07 03:52:39,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_15 [2019-11-07 03:52:39,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_16 [2019-11-07 03:52:39,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_17 [2019-11-07 03:52:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_slip_open_18 [2019-11-07 03:52:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-11-07 03:52:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_callback_ret_val [2019-11-07 03:52:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2019-11-07 03:52:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-11-07 03:52:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-11-07 03:52:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-11-07 03:52:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2019-11-07 03:52:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-11-07 03:52:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2019-11-07 03:52:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2019-11-07 03:52:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2019-11-07 03:52:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-11-07 03:52:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2019-11-07 03:52:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2019-11-07 03:52:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-11-07 03:52:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2019-11-07 03:52:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2019-11-07 03:52:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2019-11-07 03:52:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-11-07 03:52:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-11-07 03:52:39,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-11-07 03:52:39,220 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-11-07 03:52:39,220 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-11-07 03:52:39,220 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2019-11-07 03:52:39,220 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2019-11-07 03:52:39,220 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2019-11-07 03:52:39,220 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-11-07 03:52:39,221 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdevice [2019-11-07 03:52:39,221 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2019-11-07 03:52:39,221 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2019-11-07 03:52:39,221 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-11-07 03:52:39,221 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_compress [2019-11-07 03:52:39,221 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2019-11-07 03:52:39,221 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_init [2019-11-07 03:52:39,221 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_remember [2019-11-07 03:52:39,222 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_uncompress [2019-11-07 03:52:39,222 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_chars_in_buffer [2019-11-07 03:52:39,222 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2019-11-07 03:52:39,222 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2019-11-07 03:52:39,222 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_mode_ioctl [2019-11-07 03:52:39,222 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_ldisc [2019-11-07 03:52:39,223 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_ldisc [2019-11-07 03:52:39,223 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-11-07 03:52:39,223 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice_queue [2019-11-07 03:52:39,223 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-11-07 03:52:39,223 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-11-07 03:52:39,223 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-11-07 03:52:39,224 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-07 03:52:39,224 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-07 03:52:39,224 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-07 03:52:39,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 03:52:39,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-11-07 03:52:39,224 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-11-07 03:52:39,224 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-11-07 03:52:39,224 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-11-07 03:52:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-11-07 03:52:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-11-07 03:52:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 03:52:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-11-07 03:52:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-11-07 03:52:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-11-07 03:52:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-11-07 03:52:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 03:52:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 03:52:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-07 03:52:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 03:52:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-11-07 03:52:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-07 03:52:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 03:52:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-07 03:52:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 03:52:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-07 03:52:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-07 03:52:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-11-07 03:52:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-11-07 03:52:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-07 03:52:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-11-07 03:52:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-11-07 03:52:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-11-07 03:52:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-11-07 03:52:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2019-11-07 03:52:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_callback_ret_val [2019-11-07 03:52:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-11-07 03:52:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-11-07 03:52:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-11-07 03:52:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-11-07 03:52:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-11-07 03:52:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-11-07 03:52:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2019-11-07 03:52:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-11-07 03:52:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2019-11-07 03:52:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-11-07 03:52:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-11-07 03:52:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2019-11-07 03:52:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-11-07 03:52:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2019-11-07 03:52:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2019-11-07 03:52:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2019-11-07 03:52:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_2 [2019-11-07 03:52:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_8 [2019-11-07 03:52:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_10 [2019-11-07 03:52:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_12 [2019-11-07 03:52:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_14 [2019-11-07 03:52:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_16 [2019-11-07 03:52:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-11-07 03:52:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_7 [2019-11-07 03:52:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_9 [2019-11-07 03:52:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_11 [2019-11-07 03:52:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_13 [2019-11-07 03:52:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_15 [2019-11-07 03:52:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_17 [2019-11-07 03:52:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2019-11-07 03:52:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-11-07 03:52:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_1 [2019-11-07 03:52:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_5 [2019-11-07 03:52:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_6 [2019-11-07 03:52:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-07 03:52:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-11-07 03:52:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-11-07 03:52:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-11-07 03:52:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_3 [2019-11-07 03:52:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_4 [2019-11-07 03:52:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2019-11-07 03:52:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2019-11-07 03:52:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2019-11-07 03:52:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_2 [2019-11-07 03:52:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2019-11-07 03:52:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2019-11-07 03:52:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2019-11-07 03:52:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2019-11-07 03:52:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-11-07 03:52:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-11-07 03:52:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-11-07 03:52:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure tty_chars_in_buffer [2019-11-07 03:52:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2019-11-07 03:52:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure tty_mode_ioctl [2019-11-07 03:52:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2019-11-07 03:52:39,236 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_ldisc [2019-11-07 03:52:39,236 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_ldisc [2019-11-07 03:52:39,236 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2019-11-07 03:52:39,236 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-11-07 03:52:39,236 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2019-11-07 03:52:39,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 03:52:39,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 03:52:39,237 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2019-11-07 03:52:39,237 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-11-07 03:52:39,237 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2019-11-07 03:52:39,237 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-11-07 03:52:39,237 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2019-11-07 03:52:39,237 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdevice [2019-11-07 03:52:39,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdevice_4 [2019-11-07 03:52:39,238 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice_queue [2019-11-07 03:52:39,238 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice [2019-11-07 03:52:39,238 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-11-07 03:52:39,238 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2019-11-07 03:52:39,238 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2019-11-07 03:52:39,238 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2019-11-07 03:52:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2019-11-07 03:52:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2019-11-07 03:52:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2019-11-07 03:52:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2019-11-07 03:52:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 03:52:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2019-11-07 03:52:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_queue_stopped [2019-11-07 03:52:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2019-11-07 03:52:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2019-11-07 03:52:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2019-11-07 03:52:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2019-11-07 03:52:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2019-11-07 03:52:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-11-07 03:52:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2019-11-07 03:52:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2019-11-07 03:52:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_init [2019-11-07 03:52:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2019-11-07 03:52:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_compress [2019-11-07 03:52:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_uncompress [2019-11-07 03:52:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_remember [2019-11-07 03:52:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc [2019-11-07 03:52:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc [2019-11-07 03:52:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc6 [2019-11-07 03:52:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc6 [2019-11-07 03:52:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure sl_keepalive [2019-11-07 03:52:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure sl_outfill [2019-11-07 03:52:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2019-11-07 03:52:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc_bufs [2019-11-07 03:52:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_sl_alloc_bufs_3 [2019-11-07 03:52:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2019-11-07 03:52:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-07 03:52:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure sl_realloc_bufs [2019-11-07 03:52:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-07 03:52:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 03:52:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure sl_lock [2019-11-07 03:52:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2019-11-07 03:52:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2019-11-07 03:52:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure sl_encaps [2019-11-07 03:52:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-11-07 03:52:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 03:52:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure slip_write_wakeup [2019-11-07 03:52:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure sl_tx_timeout [2019-11-07 03:52:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure sl_xmit [2019-11-07 03:52:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure sl_close [2019-11-07 03:52:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure sl_open [2019-11-07 03:52:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure sl_change_mtu [2019-11-07 03:52:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure sl_get_stats64 [2019-11-07 03:52:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure sl_init [2019-11-07 03:52:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure sl_uninit [2019-11-07 03:52:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_netdev [2019-11-07 03:52:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure sl_setup [2019-11-07 03:52:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure slip_receive_buf [2019-11-07 03:52:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure sl_sync [2019-11-07 03:52:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc [2019-11-07 03:52:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure slip_open [2019-11-07 03:52:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_slip_open_18 [2019-11-07 03:52:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2019-11-07 03:52:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure slip_hangup [2019-11-07 03:52:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2019-11-07 03:52:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure slip_compat_ioctl [2019-11-07 03:52:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure slip_init [2019-11-07 03:52:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure slip_exit [2019-11-07 03:52:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-11-07 03:52:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-11-07 03:52:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2019-11-07 03:52:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 03:52:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-11-07 03:52:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-11-07 03:52:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-11-07 03:52:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 03:52:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 03:52:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-07 03:52:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 03:52:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 03:52:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-11-07 03:52:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-11-07 03:52:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-07 03:52:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-07 03:52:40,369 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-11-07 03:52:50,164 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 03:52:50,165 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-07 03:52:50,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:52:50 BoogieIcfgContainer [2019-11-07 03:52:50,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 03:52:50,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 03:52:50,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 03:52:50,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 03:52:50,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:52:35" (1/3) ... [2019-11-07 03:52:50,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b90b242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:52:50, skipping insertion in model container [2019-11-07 03:52:50,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:52:38" (2/3) ... [2019-11-07 03:52:50,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b90b242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:52:50, skipping insertion in model container [2019-11-07 03:52:50,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:52:50" (3/3) ... [2019-11-07 03:52:50,182 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-11-07 03:52:50,198 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 03:52:50,221 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 03:52:50,240 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 03:52:50,305 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 03:52:50,306 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 03:52:50,306 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 03:52:50,306 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 03:52:50,306 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 03:52:50,306 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 03:52:50,307 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 03:52:50,307 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 03:52:50,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states. [2019-11-07 03:52:50,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-11-07 03:52:50,590 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:52:50,593 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:52:50,596 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:52:50,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:52:50,608 INFO L82 PathProgramCache]: Analyzing trace with hash 2060249647, now seen corresponding path program 1 times [2019-11-07 03:52:50,624 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:52:50,625 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665388932] [2019-11-07 03:52:50,626 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:52:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:52:51,499 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2019-11-07 03:52:51,500 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665388932] [2019-11-07 03:52:51,501 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:52:51,502 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 03:52:51,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722681812] [2019-11-07 03:52:51,508 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 03:52:51,508 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:52:51,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 03:52:51,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:52:51,526 INFO L87 Difference]: Start difference. First operand 1150 states. Second operand 3 states. [2019-11-07 03:52:51,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:52:51,963 INFO L93 Difference]: Finished difference Result 2852 states and 3787 transitions. [2019-11-07 03:52:51,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 03:52:51,965 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2019-11-07 03:52:51,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:52:52,007 INFO L225 Difference]: With dead ends: 2852 [2019-11-07 03:52:52,008 INFO L226 Difference]: Without dead ends: 1654 [2019-11-07 03:52:52,023 INFO L630 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 [2019-11-07 03:52:52,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2019-11-07 03:52:52,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1654. [2019-11-07 03:52:52,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1654 states. [2019-11-07 03:52:52,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2178 transitions. [2019-11-07 03:52:52,239 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2178 transitions. Word has length 140 [2019-11-07 03:52:52,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:52:52,240 INFO L462 AbstractCegarLoop]: Abstraction has 1654 states and 2178 transitions. [2019-11-07 03:52:52,240 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 03:52:52,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2178 transitions. [2019-11-07 03:52:52,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-11-07 03:52:52,250 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:52:52,250 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:52:52,250 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:52:52,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:52:52,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1710487695, now seen corresponding path program 1 times [2019-11-07 03:52:52,251 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:52:52,251 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281172689] [2019-11-07 03:52:52,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:52:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:52:52,652 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2019-11-07 03:52:52,652 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281172689] [2019-11-07 03:52:52,653 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:52:52,653 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 03:52:52,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031154753] [2019-11-07 03:52:52,656 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 03:52:52,656 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:52:52,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 03:52:52,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 03:52:52,657 INFO L87 Difference]: Start difference. First operand 1654 states and 2178 transitions. Second operand 10 states. [2019-11-07 03:52:52,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:52:52,880 INFO L93 Difference]: Finished difference Result 3273 states and 4310 transitions. [2019-11-07 03:52:52,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 03:52:52,881 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2019-11-07 03:52:52,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:52:52,896 INFO L225 Difference]: With dead ends: 3273 [2019-11-07 03:52:52,896 INFO L226 Difference]: Without dead ends: 1656 [2019-11-07 03:52:52,904 INFO L630 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 [2019-11-07 03:52:52,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2019-11-07 03:52:53,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1654. [2019-11-07 03:52:53,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1654 states. [2019-11-07 03:52:53,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2176 transitions. [2019-11-07 03:52:53,068 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2176 transitions. Word has length 195 [2019-11-07 03:52:53,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:52:53,069 INFO L462 AbstractCegarLoop]: Abstraction has 1654 states and 2176 transitions. [2019-11-07 03:52:53,069 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 03:52:53,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2176 transitions. [2019-11-07 03:52:53,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-11-07 03:52:53,077 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:52:53,077 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:52:53,077 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:52:53,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:52:53,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1492523137, now seen corresponding path program 1 times [2019-11-07 03:52:53,078 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:52:53,078 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410225262] [2019-11-07 03:52:53,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:52:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:52:53,375 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2019-11-07 03:52:53,376 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410225262] [2019-11-07 03:52:53,377 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:52:53,377 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 03:52:53,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20245912] [2019-11-07 03:52:53,378 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 03:52:53,379 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:52:53,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 03:52:53,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-07 03:52:53,379 INFO L87 Difference]: Start difference. First operand 1654 states and 2176 transitions. Second operand 7 states. [2019-11-07 03:52:53,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:52:53,508 INFO L93 Difference]: Finished difference Result 1667 states and 2189 transitions. [2019-11-07 03:52:53,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 03:52:53,509 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 201 [2019-11-07 03:52:53,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:52:53,521 INFO L225 Difference]: With dead ends: 1667 [2019-11-07 03:52:53,521 INFO L226 Difference]: Without dead ends: 1664 [2019-11-07 03:52:53,524 INFO L630 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 [2019-11-07 03:52:53,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2019-11-07 03:52:53,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1662. [2019-11-07 03:52:53,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1662 states. [2019-11-07 03:52:53,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2184 transitions. [2019-11-07 03:52:53,597 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 2184 transitions. Word has length 201 [2019-11-07 03:52:53,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:52:53,599 INFO L462 AbstractCegarLoop]: Abstraction has 1662 states and 2184 transitions. [2019-11-07 03:52:53,599 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 03:52:53,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 2184 transitions. [2019-11-07 03:52:53,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-11-07 03:52:53,608 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:52:53,609 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:52:53,609 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:52:53,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:52:53,610 INFO L82 PathProgramCache]: Analyzing trace with hash 561078519, now seen corresponding path program 1 times [2019-11-07 03:52:53,610 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:52:53,610 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267252378] [2019-11-07 03:52:53,610 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:52:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:52:53,952 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2019-11-07 03:52:53,953 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267252378] [2019-11-07 03:52:53,954 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:52:53,954 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 03:52:53,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512387447] [2019-11-07 03:52:53,955 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 03:52:53,956 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:52:53,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 03:52:53,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 03:52:53,957 INFO L87 Difference]: Start difference. First operand 1662 states and 2184 transitions. Second operand 8 states. [2019-11-07 03:52:54,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:52:54,126 INFO L93 Difference]: Finished difference Result 1695 states and 2223 transitions. [2019-11-07 03:52:54,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 03:52:54,127 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 216 [2019-11-07 03:52:54,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:52:54,138 INFO L225 Difference]: With dead ends: 1695 [2019-11-07 03:52:54,138 INFO L226 Difference]: Without dead ends: 1692 [2019-11-07 03:52:54,140 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-07 03:52:54,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2019-11-07 03:52:54,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1664. [2019-11-07 03:52:54,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1664 states. [2019-11-07 03:52:54,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1664 states to 1664 states and 2187 transitions. [2019-11-07 03:52:54,217 INFO L78 Accepts]: Start accepts. Automaton has 1664 states and 2187 transitions. Word has length 216 [2019-11-07 03:52:54,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:52:54,218 INFO L462 AbstractCegarLoop]: Abstraction has 1664 states and 2187 transitions. [2019-11-07 03:52:54,218 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 03:52:54,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states and 2187 transitions. [2019-11-07 03:52:54,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2019-11-07 03:52:54,232 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:52:54,236 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:52:54,237 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:52:54,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:52:54,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1907033541, now seen corresponding path program 1 times [2019-11-07 03:52:54,238 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:52:54,238 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353158044] [2019-11-07 03:52:54,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:52:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:52:54,753 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2019-11-07 03:52:54,753 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353158044] [2019-11-07 03:52:54,755 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:52:54,759 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 03:52:54,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026390820] [2019-11-07 03:52:54,761 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 03:52:54,762 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:52:54,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 03:52:54,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 03:52:54,763 INFO L87 Difference]: Start difference. First operand 1664 states and 2187 transitions. Second operand 4 states. [2019-11-07 03:52:57,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:52:57,827 INFO L93 Difference]: Finished difference Result 3829 states and 5033 transitions. [2019-11-07 03:52:57,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 03:52:57,828 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 244 [2019-11-07 03:52:57,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:52:57,851 INFO L225 Difference]: With dead ends: 3829 [2019-11-07 03:52:57,851 INFO L226 Difference]: Without dead ends: 2210 [2019-11-07 03:52:57,861 INFO L630 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 [2019-11-07 03:52:57,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2019-11-07 03:52:58,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 2209. [2019-11-07 03:52:58,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2209 states. [2019-11-07 03:52:58,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 2896 transitions. [2019-11-07 03:52:58,050 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 2896 transitions. Word has length 244 [2019-11-07 03:52:58,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:52:58,051 INFO L462 AbstractCegarLoop]: Abstraction has 2209 states and 2896 transitions. [2019-11-07 03:52:58,052 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 03:52:58,052 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 2896 transitions. [2019-11-07 03:52:58,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-11-07 03:52:58,080 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:52:58,081 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:52:58,082 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:52:58,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:52:58,082 INFO L82 PathProgramCache]: Analyzing trace with hash -631311840, now seen corresponding path program 1 times [2019-11-07 03:52:58,083 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:52:58,083 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132080353] [2019-11-07 03:52:58,084 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:52:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:52:58,468 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2019-11-07 03:52:58,470 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132080353] [2019-11-07 03:52:58,470 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:52:58,470 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 03:52:58,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789104330] [2019-11-07 03:52:58,475 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 03:52:58,476 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:52:58,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 03:52:58,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 03:52:58,476 INFO L87 Difference]: Start difference. First operand 2209 states and 2896 transitions. Second operand 5 states. [2019-11-07 03:52:58,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:52:58,650 INFO L93 Difference]: Finished difference Result 3836 states and 5038 transitions. [2019-11-07 03:52:58,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 03:52:58,651 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 246 [2019-11-07 03:52:58,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:52:58,670 INFO L225 Difference]: With dead ends: 3836 [2019-11-07 03:52:58,670 INFO L226 Difference]: Without dead ends: 2217 [2019-11-07 03:52:58,677 INFO L630 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 [2019-11-07 03:52:58,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2217 states. [2019-11-07 03:52:58,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2217 to 2213. [2019-11-07 03:52:58,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2213 states. [2019-11-07 03:52:58,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2213 states to 2213 states and 2900 transitions. [2019-11-07 03:52:58,796 INFO L78 Accepts]: Start accepts. Automaton has 2213 states and 2900 transitions. Word has length 246 [2019-11-07 03:52:58,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:52:58,797 INFO L462 AbstractCegarLoop]: Abstraction has 2213 states and 2900 transitions. [2019-11-07 03:52:58,797 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 03:52:58,797 INFO L276 IsEmpty]: Start isEmpty. Operand 2213 states and 2900 transitions. [2019-11-07 03:52:58,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2019-11-07 03:52:58,814 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:52:58,814 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:52:58,815 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:52:58,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:52:58,815 INFO L82 PathProgramCache]: Analyzing trace with hash -730919617, now seen corresponding path program 1 times [2019-11-07 03:52:58,816 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:52:58,816 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050238687] [2019-11-07 03:52:58,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:52:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:52:59,192 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2019-11-07 03:52:59,192 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050238687] [2019-11-07 03:52:59,193 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:52:59,193 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 03:52:59,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353185912] [2019-11-07 03:52:59,194 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 03:52:59,195 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:52:59,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 03:52:59,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:52:59,195 INFO L87 Difference]: Start difference. First operand 2213 states and 2900 transitions. Second operand 3 states. [2019-11-07 03:52:59,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:52:59,395 INFO L93 Difference]: Finished difference Result 3839 states and 5043 transitions. [2019-11-07 03:52:59,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 03:52:59,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 268 [2019-11-07 03:52:59,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:52:59,417 INFO L225 Difference]: With dead ends: 3839 [2019-11-07 03:52:59,417 INFO L226 Difference]: Without dead ends: 2216 [2019-11-07 03:52:59,427 INFO L630 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 [2019-11-07 03:52:59,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2216 states. [2019-11-07 03:52:59,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2216 to 2214. [2019-11-07 03:52:59,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2214 states. [2019-11-07 03:52:59,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2214 states to 2214 states and 2901 transitions. [2019-11-07 03:52:59,574 INFO L78 Accepts]: Start accepts. Automaton has 2214 states and 2901 transitions. Word has length 268 [2019-11-07 03:52:59,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:52:59,575 INFO L462 AbstractCegarLoop]: Abstraction has 2214 states and 2901 transitions. [2019-11-07 03:52:59,575 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 03:52:59,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2214 states and 2901 transitions. [2019-11-07 03:52:59,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2019-11-07 03:52:59,594 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:52:59,595 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:52:59,595 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:52:59,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:52:59,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1518582705, now seen corresponding path program 1 times [2019-11-07 03:52:59,596 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:52:59,597 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883716426] [2019-11-07 03:52:59,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:52:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:52:59,849 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2019-11-07 03:52:59,849 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883716426] [2019-11-07 03:52:59,850 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:52:59,850 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 03:52:59,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103172646] [2019-11-07 03:52:59,851 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 03:52:59,851 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:52:59,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 03:52:59,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:52:59,852 INFO L87 Difference]: Start difference. First operand 2214 states and 2901 transitions. Second operand 3 states. [2019-11-07 03:52:59,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:52:59,956 INFO L93 Difference]: Finished difference Result 3829 states and 5030 transitions. [2019-11-07 03:52:59,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 03:52:59,958 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 269 [2019-11-07 03:52:59,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:52:59,972 INFO L225 Difference]: With dead ends: 3829 [2019-11-07 03:52:59,972 INFO L226 Difference]: Without dead ends: 2205 [2019-11-07 03:52:59,980 INFO L630 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 [2019-11-07 03:52:59,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2205 states. [2019-11-07 03:53:00,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 2201. [2019-11-07 03:53:00,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2201 states. [2019-11-07 03:53:00,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 2883 transitions. [2019-11-07 03:53:00,099 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 2883 transitions. Word has length 269 [2019-11-07 03:53:00,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:53:00,100 INFO L462 AbstractCegarLoop]: Abstraction has 2201 states and 2883 transitions. [2019-11-07 03:53:00,100 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 03:53:00,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 2883 transitions. [2019-11-07 03:53:00,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2019-11-07 03:53:00,112 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:53:00,113 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:53:00,113 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:53:00,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:53:00,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1633386451, now seen corresponding path program 1 times [2019-11-07 03:53:00,114 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:53:00,114 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699552094] [2019-11-07 03:53:00,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:53:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:53:00,655 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2019-11-07 03:53:00,655 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699552094] [2019-11-07 03:53:00,655 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:53:00,656 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 03:53:00,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583653086] [2019-11-07 03:53:00,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 03:53:00,657 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:53:00,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 03:53:00,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-07 03:53:00,658 INFO L87 Difference]: Start difference. First operand 2201 states and 2883 transitions. Second operand 7 states.