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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -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 0.1.24-673a906-m [2019-10-03 02:25:45,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:25:45,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:25:45,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:25:45,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:25:45,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:25:45,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:25:45,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:25:45,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:25:45,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:25:45,138 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:25:45,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:25:45,142 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:25:45,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:25:45,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:25:45,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:25:45,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:25:45,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:25:45,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:25:45,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:25:45,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:25:45,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:25:45,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:25:45,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:25:45,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:25:45,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:25:45,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:25:45,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:25:45,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:25:45,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:25:45,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:25:45,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:25:45,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:25:45,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:25:45,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:25:45,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:25:45,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:25:45,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:25:45,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:25:45,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:25:45,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:25:45,199 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:25:45,235 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:25:45,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:25:45,237 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:25:45,237 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:25:45,238 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:25:45,238 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:25:45,238 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:25:45,239 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:25:45,239 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:25:45,239 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:25:45,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:25:45,243 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:25:45,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:25:45,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:25:45,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:25:45,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:25:45,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:25:45,244 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:25:45,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:25:45,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:25:45,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:25:45,245 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:25:45,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:25:45,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:25:45,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:25:45,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:25:45,247 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:25:45,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:25:45,247 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:25:45,248 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:25:45,321 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:25:45,347 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:25:45,355 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:25:45,357 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:25:45,358 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:25:45,360 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-03 02:25:45,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12360c641/dfc3405394cb4d6fbd6dd516afe5378e/FLAG3b8927fc3 [2019-10-03 02:25:46,491 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:25:46,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-03 02:25:46,560 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12360c641/dfc3405394cb4d6fbd6dd516afe5378e/FLAG3b8927fc3 [2019-10-03 02:25:46,775 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12360c641/dfc3405394cb4d6fbd6dd516afe5378e [2019-10-03 02:25:46,787 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:25:46,789 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:25:46,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:25:46,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:25:46,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:25:46,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:25:46" (1/1) ... [2019-10-03 02:25:46,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b500255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:25:46, skipping insertion in model container [2019-10-03 02:25:46,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:25:46" (1/1) ... [2019-10-03 02:25:46,809 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:25:46,986 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:25:49,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:25:49,581 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:25:49,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:25:50,489 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:25:50,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:25:50 WrapperNode [2019-10-03 02:25:50,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:25:50,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:25:50,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:25:50,493 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:25:50,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:25:50" (1/1) ... [2019-10-03 02:25:50,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:25:50" (1/1) ... [2019-10-03 02:25:50,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:25:50" (1/1) ... [2019-10-03 02:25:50,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:25:50" (1/1) ... [2019-10-03 02:25:50,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:25:50" (1/1) ... [2019-10-03 02:25:50,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:25:50" (1/1) ... [2019-10-03 02:25:50,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:25:50" (1/1) ... [2019-10-03 02:25:50,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:25:50,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:25:50,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:25:50,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:25:50,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:25:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:25:50,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:25:50,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:25:50,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-03 02:25:50,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2019-10-03 02:25:50,969 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-03 02:25:50,969 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-10-03 02:25:50,969 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-10-03 02:25:50,970 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-10-03 02:25:50,970 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-03 02:25:50,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-03 02:25:50,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-03 02:25:50,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-03 02:25:50,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-03 02:25:50,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-03 02:25:50,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-03 02:25:50,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-03 02:25:50,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-03 02:25:50,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2019-10-03 02:25:50,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-03 02:25:50,972 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-03 02:25:50,972 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-03 02:25:50,972 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-03 02:25:50,972 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2019-10-03 02:25:50,973 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-03 02:25:50,973 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2019-10-03 02:25:50,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-03 02:25:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-03 02:25:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-03 02:25:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-03 02:25:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2019-10-03 02:25:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-10-03 02:25:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2019-10-03 02:25:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-10-03 02:25:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice [2019-10-03 02:25:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2019-10-03 02:25:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2019-10-03 02:25:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2019-10-03 02:25:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2019-10-03 02:25:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2019-10-03 02:25:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2019-10-03 02:25:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_queue_stopped [2019-10-03 02:25:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2019-10-03 02:25:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2019-10-03 02:25:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc_bufs [2019-10-03 02:25:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2019-10-03 02:25:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_realloc_bufs [2019-10-03 02:25:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_lock [2019-10-03 02:25:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2019-10-03 02:25:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2019-10-03 02:25:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_encaps [2019-10-03 02:25:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_write_wakeup [2019-10-03 02:25:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_tx_timeout [2019-10-03 02:25:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_xmit [2019-10-03 02:25:50,981 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_close [2019-10-03 02:25:50,981 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_open [2019-10-03 02:25:50,981 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_change_mtu [2019-10-03 02:25:50,982 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_get_stats64 [2019-10-03 02:25:50,982 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_init [2019-10-03 02:25:50,982 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_uninit [2019-10-03 02:25:50,983 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_netdev [2019-10-03 02:25:50,983 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_setup [2019-10-03 02:25:50,983 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_receive_buf [2019-10-03 02:25:50,983 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_sync [2019-10-03 02:25:50,983 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc [2019-10-03 02:25:50,983 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_open [2019-10-03 02:25:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2019-10-03 02:25:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_hangup [2019-10-03 02:25:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc [2019-10-03 02:25:50,985 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc [2019-10-03 02:25:50,985 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc6 [2019-10-03 02:25:50,985 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc6 [2019-10-03 02:25:50,985 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2019-10-03 02:25:50,985 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_compat_ioctl [2019-10-03 02:25:50,986 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2019-10-03 02:25:50,986 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_init [2019-10-03 02:25:50,986 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_exit [2019-10-03 02:25:50,987 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_outfill [2019-10-03 02:25:50,988 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_keepalive [2019-10-03 02:25:50,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_3 [2019-10-03 02:25:50,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_4 [2019-10-03 02:25:50,988 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2019-10-03 02:25:50,989 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2019-10-03 02:25:50,989 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2019-10-03 02:25:50,989 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_2 [2019-10-03 02:25:50,989 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2019-10-03 02:25:50,990 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2019-10-03 02:25:50,990 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2019-10-03 02:25:50,992 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2019-10-03 02:25:50,992 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:25:50,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_1 [2019-10-03 02:25:50,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_2 [2019-10-03 02:25:50,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_sl_alloc_bufs_3 [2019-10-03 02:25:50,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdevice_4 [2019-10-03 02:25:50,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_5 [2019-10-03 02:25:50,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_6 [2019-10-03 02:25:50,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_7 [2019-10-03 02:25:50,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_8 [2019-10-03 02:25:50,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_9 [2019-10-03 02:25:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_10 [2019-10-03 02:25:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_11 [2019-10-03 02:25:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_12 [2019-10-03 02:25:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_13 [2019-10-03 02:25:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_14 [2019-10-03 02:25:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_15 [2019-10-03 02:25:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_16 [2019-10-03 02:25:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_17 [2019-10-03 02:25:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_slip_open_18 [2019-10-03 02:25:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-03 02:25:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_callback_ret_val [2019-10-03 02:25:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2019-10-03 02:25:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-03 02:25:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-03 02:25:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-03 02:25:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2019-10-03 02:25:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-03 02:25:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2019-10-03 02:25:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2019-10-03 02:25:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2019-10-03 02:25:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-10-03 02:25:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2019-10-03 02:25:50,999 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2019-10-03 02:25:50,999 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-10-03 02:25:50,999 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2019-10-03 02:25:51,000 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2019-10-03 02:25:51,000 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2019-10-03 02:25:51,000 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-10-03 02:25:51,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-03 02:25:51,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-03 02:25:51,001 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-03 02:25:51,001 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-10-03 02:25:51,001 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2019-10-03 02:25:51,002 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2019-10-03 02:25:51,002 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2019-10-03 02:25:51,002 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-03 02:25:51,002 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdevice [2019-10-03 02:25:51,002 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2019-10-03 02:25:51,002 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2019-10-03 02:25:51,003 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-03 02:25:51,004 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_compress [2019-10-03 02:25:51,007 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2019-10-03 02:25:51,007 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_init [2019-10-03 02:25:51,007 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_remember [2019-10-03 02:25:51,008 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_uncompress [2019-10-03 02:25:51,014 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_chars_in_buffer [2019-10-03 02:25:51,014 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2019-10-03 02:25:51,014 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2019-10-03 02:25:51,015 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_mode_ioctl [2019-10-03 02:25:51,015 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_ldisc [2019-10-03 02:25:51,015 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_ldisc [2019-10-03 02:25:51,015 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-10-03 02:25:51,015 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice_queue [2019-10-03 02:25:51,015 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-03 02:25:51,015 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-03 02:25:51,016 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-03 02:25:51,016 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-03 02:25:51,016 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-03 02:25:51,017 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-03 02:25:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:25:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-03 02:25:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-03 02:25:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-10-03 02:25:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-10-03 02:25:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-10-03 02:25:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-03 02:25:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:25:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-03 02:25:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-03 02:25:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-03 02:25:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-03 02:25:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:25:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-03 02:25:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-03 02:25:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:25:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-03 02:25:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-03 02:25:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-03 02:25:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-03 02:25:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:25:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-03 02:25:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-03 02:25:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-03 02:25:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-03 02:25:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-03 02:25:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-03 02:25:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-03 02:25:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-03 02:25:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-03 02:25:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2019-10-03 02:25:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_callback_ret_val [2019-10-03 02:25:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-03 02:25:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-03 02:25:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-10-03 02:25:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-03 02:25:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-03 02:25:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-03 02:25:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2019-10-03 02:25:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-03 02:25:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2019-10-03 02:25:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-03 02:25:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-03 02:25:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2019-10-03 02:25:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-03 02:25:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2019-10-03 02:25:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2019-10-03 02:25:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2019-10-03 02:25:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_2 [2019-10-03 02:25:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_8 [2019-10-03 02:25:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_10 [2019-10-03 02:25:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_12 [2019-10-03 02:25:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_14 [2019-10-03 02:25:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_16 [2019-10-03 02:25:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-10-03 02:25:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_7 [2019-10-03 02:25:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_9 [2019-10-03 02:25:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_11 [2019-10-03 02:25:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_13 [2019-10-03 02:25:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_15 [2019-10-03 02:25:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_17 [2019-10-03 02:25:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2019-10-03 02:25:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-10-03 02:25:51,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_1 [2019-10-03 02:25:51,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_5 [2019-10-03 02:25:51,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_6 [2019-10-03 02:25:51,028 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-03 02:25:51,028 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-03 02:25:51,028 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-03 02:25:51,028 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-03 02:25:51,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_3 [2019-10-03 02:25:51,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_4 [2019-10-03 02:25:51,029 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2019-10-03 02:25:51,029 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2019-10-03 02:25:51,029 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2019-10-03 02:25:51,029 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_2 [2019-10-03 02:25:51,029 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2019-10-03 02:25:51,029 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2019-10-03 02:25:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2019-10-03 02:25:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2019-10-03 02:25:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-03 02:25:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-03 02:25:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-10-03 02:25:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure tty_chars_in_buffer [2019-10-03 02:25:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2019-10-03 02:25:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure tty_mode_ioctl [2019-10-03 02:25:51,031 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2019-10-03 02:25:51,031 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_ldisc [2019-10-03 02:25:51,031 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_ldisc [2019-10-03 02:25:51,031 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2019-10-03 02:25:51,031 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-03 02:25:51,031 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2019-10-03 02:25:51,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:25:51,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:25:51,032 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2019-10-03 02:25:51,032 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-10-03 02:25:51,032 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2019-10-03 02:25:51,032 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-10-03 02:25:51,032 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2019-10-03 02:25:51,032 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdevice [2019-10-03 02:25:51,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdevice_4 [2019-10-03 02:25:51,032 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice_queue [2019-10-03 02:25:51,033 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice [2019-10-03 02:25:51,033 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-10-03 02:25:51,033 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2019-10-03 02:25:51,033 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2019-10-03 02:25:51,033 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2019-10-03 02:25:51,033 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2019-10-03 02:25:51,034 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2019-10-03 02:25:51,037 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2019-10-03 02:25:51,038 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2019-10-03 02:25:51,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:25:51,038 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2019-10-03 02:25:51,038 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_queue_stopped [2019-10-03 02:25:51,038 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2019-10-03 02:25:51,038 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2019-10-03 02:25:51,039 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2019-10-03 02:25:51,039 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2019-10-03 02:25:51,039 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2019-10-03 02:25:51,039 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-10-03 02:25:51,039 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2019-10-03 02:25:51,039 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2019-10-03 02:25:51,039 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_init [2019-10-03 02:25:51,040 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2019-10-03 02:25:51,040 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_compress [2019-10-03 02:25:51,040 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_uncompress [2019-10-03 02:25:51,040 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_remember [2019-10-03 02:25:51,040 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc [2019-10-03 02:25:51,040 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc [2019-10-03 02:25:51,040 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc6 [2019-10-03 02:25:51,040 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc6 [2019-10-03 02:25:51,041 INFO L130 BoogieDeclarations]: Found specification of procedure sl_keepalive [2019-10-03 02:25:51,041 INFO L130 BoogieDeclarations]: Found specification of procedure sl_outfill [2019-10-03 02:25:51,041 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2019-10-03 02:25:51,041 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc_bufs [2019-10-03 02:25:51,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_sl_alloc_bufs_3 [2019-10-03 02:25:51,041 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2019-10-03 02:25:51,041 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-03 02:25:51,041 INFO L130 BoogieDeclarations]: Found specification of procedure sl_realloc_bufs [2019-10-03 02:25:51,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-03 02:25:51,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:25:51,042 INFO L130 BoogieDeclarations]: Found specification of procedure sl_lock [2019-10-03 02:25:51,042 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2019-10-03 02:25:51,042 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2019-10-03 02:25:51,042 INFO L130 BoogieDeclarations]: Found specification of procedure sl_encaps [2019-10-03 02:25:51,042 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-03 02:25:51,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:25:51,043 INFO L130 BoogieDeclarations]: Found specification of procedure slip_write_wakeup [2019-10-03 02:25:51,043 INFO L130 BoogieDeclarations]: Found specification of procedure sl_tx_timeout [2019-10-03 02:25:51,043 INFO L130 BoogieDeclarations]: Found specification of procedure sl_xmit [2019-10-03 02:25:51,043 INFO L130 BoogieDeclarations]: Found specification of procedure sl_close [2019-10-03 02:25:51,043 INFO L130 BoogieDeclarations]: Found specification of procedure sl_open [2019-10-03 02:25:51,043 INFO L130 BoogieDeclarations]: Found specification of procedure sl_change_mtu [2019-10-03 02:25:51,043 INFO L130 BoogieDeclarations]: Found specification of procedure sl_get_stats64 [2019-10-03 02:25:51,043 INFO L130 BoogieDeclarations]: Found specification of procedure sl_init [2019-10-03 02:25:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure sl_uninit [2019-10-03 02:25:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_netdev [2019-10-03 02:25:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure sl_setup [2019-10-03 02:25:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure slip_receive_buf [2019-10-03 02:25:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure sl_sync [2019-10-03 02:25:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc [2019-10-03 02:25:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure slip_open [2019-10-03 02:25:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_slip_open_18 [2019-10-03 02:25:51,045 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2019-10-03 02:25:51,045 INFO L130 BoogieDeclarations]: Found specification of procedure slip_hangup [2019-10-03 02:25:51,045 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2019-10-03 02:25:51,045 INFO L130 BoogieDeclarations]: Found specification of procedure slip_compat_ioctl [2019-10-03 02:25:51,045 INFO L130 BoogieDeclarations]: Found specification of procedure slip_init [2019-10-03 02:25:51,045 INFO L130 BoogieDeclarations]: Found specification of procedure slip_exit [2019-10-03 02:25:51,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-03 02:25:51,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-03 02:25:51,046 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2019-10-03 02:25:51,046 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:25:51,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-03 02:25:51,046 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-03 02:25:51,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-03 02:25:51,046 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:25:51,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:25:51,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-03 02:25:51,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:25:51,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:25:51,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-03 02:25:51,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-03 02:25:51,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-03 02:25:51,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-03 02:25:52,439 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-03 02:25:56,751 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:25:56,752 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-03 02:25:56,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:25:56 BoogieIcfgContainer [2019-10-03 02:25:56,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:25:56,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:25:56,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:25:56,761 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:25:56,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:25:46" (1/3) ... [2019-10-03 02:25:56,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ca5c14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:25:56, skipping insertion in model container [2019-10-03 02:25:56,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:25:50" (2/3) ... [2019-10-03 02:25:56,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ca5c14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:25:56, skipping insertion in model container [2019-10-03 02:25:56,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:25:56" (3/3) ... [2019-10-03 02:25:56,769 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-03 02:25:56,783 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:25:56,799 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:25:56,821 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:25:56,849 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:25:56,849 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:25:56,849 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:25:56,849 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:25:56,849 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:25:56,849 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:25:56,850 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:25:56,850 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:25:56,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states. [2019-10-03 02:25:56,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-03 02:25:56,974 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:25:56,976 INFO L411 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:25:56,979 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:25:56,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:25:56,987 INFO L82 PathProgramCache]: Analyzing trace with hash 535274995, now seen corresponding path program 1 times [2019-10-03 02:25:56,990 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:25:57,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:25:57,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:25:57,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:25:57,087 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:25:57,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:25:58,069 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2019-10-03 02:25:58,073 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:25:58,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:25:58,074 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:25:58,082 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:25:58,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:25:58,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:25:58,107 INFO L87 Difference]: Start difference. First operand 1451 states. Second operand 3 states. [2019-10-03 02:25:58,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:25:58,470 INFO L93 Difference]: Finished difference Result 2195 states and 2959 transitions. [2019-10-03 02:25:58,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:25:58,472 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2019-10-03 02:25:58,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:25:58,519 INFO L225 Difference]: With dead ends: 2195 [2019-10-03 02:25:58,519 INFO L226 Difference]: Without dead ends: 2082 [2019-10-03 02:25:58,521 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:25:58,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2019-10-03 02:25:58,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 2082. [2019-10-03 02:25:58,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2082 states. [2019-10-03 02:25:58,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 2803 transitions. [2019-10-03 02:25:58,795 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 2803 transitions. Word has length 171 [2019-10-03 02:25:58,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:25:58,797 INFO L475 AbstractCegarLoop]: Abstraction has 2082 states and 2803 transitions. [2019-10-03 02:25:58,797 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:25:58,797 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 2803 transitions. [2019-10-03 02:25:58,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-10-03 02:25:58,813 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:25:58,813 INFO L411 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:25:58,814 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:25:58,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:25:58,814 INFO L82 PathProgramCache]: Analyzing trace with hash 698862750, now seen corresponding path program 1 times [2019-10-03 02:25:58,815 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:25:58,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:25:58,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:25:58,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:25:58,827 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:25:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:25:59,282 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2019-10-03 02:25:59,283 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:25:59,283 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:25:59,283 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:25:59,285 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:25:59,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:25:59,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:25:59,286 INFO L87 Difference]: Start difference. First operand 2082 states and 2803 transitions. Second operand 5 states. [2019-10-03 02:26:05,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:26:05,898 INFO L93 Difference]: Finished difference Result 2082 states and 2801 transitions. [2019-10-03 02:26:05,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:26:05,899 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 241 [2019-10-03 02:26:05,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:26:05,919 INFO L225 Difference]: With dead ends: 2082 [2019-10-03 02:26:05,920 INFO L226 Difference]: Without dead ends: 2082 [2019-10-03 02:26:05,921 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:26:05,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2019-10-03 02:26:06,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 2082. [2019-10-03 02:26:06,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2082 states. [2019-10-03 02:26:06,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 2801 transitions. [2019-10-03 02:26:06,035 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 2801 transitions. Word has length 241 [2019-10-03 02:26:06,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:26:06,038 INFO L475 AbstractCegarLoop]: Abstraction has 2082 states and 2801 transitions. [2019-10-03 02:26:06,038 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:26:06,039 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 2801 transitions. [2019-10-03 02:26:06,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-10-03 02:26:06,048 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:26:06,048 INFO L411 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:26:06,049 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:26:06,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:26:06,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1719041316, now seen corresponding path program 1 times [2019-10-03 02:26:06,049 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:26:06,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:26:06,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:26:06,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:26:06,066 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:26:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:26:06,541 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2019-10-03 02:26:06,541 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:26:06,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-03 02:26:06,541 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:26:06,542 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-03 02:26:06,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-03 02:26:06,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:26:06,543 INFO L87 Difference]: Start difference. First operand 2082 states and 2801 transitions. Second operand 10 states. [2019-10-03 02:26:06,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:26:06,728 INFO L93 Difference]: Finished difference Result 2092 states and 2809 transitions. [2019-10-03 02:26:06,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:26:06,729 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2019-10-03 02:26:06,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:26:06,746 INFO L225 Difference]: With dead ends: 2092 [2019-10-03 02:26:06,746 INFO L226 Difference]: Without dead ends: 2084 [2019-10-03 02:26:06,747 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:26:06,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2084 states. [2019-10-03 02:26:06,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2084 to 2082. [2019-10-03 02:26:06,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2082 states. [2019-10-03 02:26:06,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 2799 transitions. [2019-10-03 02:26:06,833 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 2799 transitions. Word has length 241 [2019-10-03 02:26:06,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:26:06,835 INFO L475 AbstractCegarLoop]: Abstraction has 2082 states and 2799 transitions. [2019-10-03 02:26:06,836 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-03 02:26:06,836 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 2799 transitions. [2019-10-03 02:26:06,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-10-03 02:26:06,846 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:26:06,847 INFO L411 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:26:06,847 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:26:06,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:26:06,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1934234600, now seen corresponding path program 1 times [2019-10-03 02:26:06,848 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:26:06,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:26:06,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:26:06,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:26:06,860 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:26:07,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:26:07,288 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2019-10-03 02:26:07,288 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:26:07,288 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:26:07,288 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:26:07,289 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:26:07,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:26:07,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:26:07,292 INFO L87 Difference]: Start difference. First operand 2082 states and 2799 transitions. Second operand 7 states. [2019-10-03 02:26:07,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:26:07,456 INFO L93 Difference]: Finished difference Result 2093 states and 2810 transitions. [2019-10-03 02:26:07,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:26:07,457 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 248 [2019-10-03 02:26:07,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:26:07,478 INFO L225 Difference]: With dead ends: 2093 [2019-10-03 02:26:07,478 INFO L226 Difference]: Without dead ends: 2093 [2019-10-03 02:26:07,479 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:26:07,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2093 states. [2019-10-03 02:26:07,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2093 to 2090. [2019-10-03 02:26:07,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2090 states. [2019-10-03 02:26:07,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 2807 transitions. [2019-10-03 02:26:07,583 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 2807 transitions. Word has length 248 [2019-10-03 02:26:07,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:26:07,584 INFO L475 AbstractCegarLoop]: Abstraction has 2090 states and 2807 transitions. [2019-10-03 02:26:07,584 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:26:07,585 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 2807 transitions. [2019-10-03 02:26:07,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2019-10-03 02:26:07,600 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:26:07,600 INFO L411 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:26:07,601 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:26:07,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:26:07,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1566274985, now seen corresponding path program 1 times [2019-10-03 02:26:07,602 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:26:07,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:26:07,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:26:07,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:26:07,615 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:26:07,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:26:08,142 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2019-10-03 02:26:08,142 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:26:08,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:26:08,143 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:26:08,144 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:26:08,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:26:08,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:26:08,146 INFO L87 Difference]: Start difference. First operand 2090 states and 2807 transitions. Second operand 8 states. [2019-10-03 02:26:08,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:26:08,314 INFO L93 Difference]: Finished difference Result 2121 states and 2844 transitions. [2019-10-03 02:26:08,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-03 02:26:08,314 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 264 [2019-10-03 02:26:08,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:26:08,332 INFO L225 Difference]: With dead ends: 2121 [2019-10-03 02:26:08,332 INFO L226 Difference]: Without dead ends: 2121 [2019-10-03 02:26:08,333 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:26:08,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2121 states. [2019-10-03 02:26:08,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2121 to 2092. [2019-10-03 02:26:08,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2092 states. [2019-10-03 02:26:08,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2810 transitions. [2019-10-03 02:26:08,417 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2810 transitions. Word has length 264 [2019-10-03 02:26:08,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:26:08,422 INFO L475 AbstractCegarLoop]: Abstraction has 2092 states and 2810 transitions. [2019-10-03 02:26:08,422 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:26:08,423 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2810 transitions. [2019-10-03 02:26:08,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2019-10-03 02:26:08,437 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:26:08,437 INFO L411 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:26:08,438 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:26:08,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:26:08,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1356809221, now seen corresponding path program 1 times [2019-10-03 02:26:08,439 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:26:08,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:26:08,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:26:08,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:26:08,451 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:26:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:26:08,913 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2019-10-03 02:26:08,913 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:26:08,914 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:26:08,914 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:26:08,914 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:26:08,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:26:08,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:26:08,915 INFO L87 Difference]: Start difference. First operand 2092 states and 2810 transitions. Second operand 4 states. [2019-10-03 02:26:12,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:26:12,194 INFO L93 Difference]: Finished difference Result 2771 states and 3710 transitions. [2019-10-03 02:26:12,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:26:12,195 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 298 [2019-10-03 02:26:12,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:26:12,216 INFO L225 Difference]: With dead ends: 2771 [2019-10-03 02:26:12,217 INFO L226 Difference]: Without dead ends: 2771 [2019-10-03 02:26:12,217 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:26:12,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2771 states. [2019-10-03 02:26:12,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2771 to 2770. [2019-10-03 02:26:12,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2770 states. [2019-10-03 02:26:12,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 3709 transitions. [2019-10-03 02:26:12,307 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 3709 transitions. Word has length 298 [2019-10-03 02:26:12,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:26:12,308 INFO L475 AbstractCegarLoop]: Abstraction has 2770 states and 3709 transitions. [2019-10-03 02:26:12,308 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:26:12,308 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 3709 transitions. [2019-10-03 02:26:12,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2019-10-03 02:26:12,326 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:26:12,326 INFO L411 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:26:12,327 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:26:12,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:26:12,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1860159094, now seen corresponding path program 1 times [2019-10-03 02:26:12,327 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:26:12,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:26:12,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:26:12,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:26:12,336 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:26:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:26:12,598 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2019-10-03 02:26:12,599 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:26:12,599 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:26:12,599 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:26:12,601 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:26:12,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:26:12,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:26:12,602 INFO L87 Difference]: Start difference. First operand 2770 states and 3709 transitions. Second operand 3 states. [2019-10-03 02:26:12,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:26:12,646 INFO L93 Difference]: Finished difference Result 2773 states and 3703 transitions. [2019-10-03 02:26:12,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:26:12,647 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 300 [2019-10-03 02:26:12,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:26:12,665 INFO L225 Difference]: With dead ends: 2773 [2019-10-03 02:26:12,665 INFO L226 Difference]: Without dead ends: 2773 [2019-10-03 02:26:12,666 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:26:12,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2773 states. [2019-10-03 02:26:12,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2773 to 2770. [2019-10-03 02:26:12,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2770 states. [2019-10-03 02:26:12,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 3700 transitions. [2019-10-03 02:26:12,764 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 3700 transitions. Word has length 300 [2019-10-03 02:26:12,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:26:12,766 INFO L475 AbstractCegarLoop]: Abstraction has 2770 states and 3700 transitions. [2019-10-03 02:26:12,766 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:26:12,767 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 3700 transitions. [2019-10-03 02:26:12,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2019-10-03 02:26:12,785 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:26:12,785 INFO L411 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:26:12,785 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:26:12,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:26:12,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1110492793, now seen corresponding path program 1 times [2019-10-03 02:26:12,786 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:26:12,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:26:12,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:26:12,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:26:12,798 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:26:12,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:26:13,436 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2019-10-03 02:26:13,437 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:26:13,437 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-03 02:26:13,437 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:26:13,438 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-03 02:26:13,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-03 02:26:13,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-03 02:26:13,439 INFO L87 Difference]: Start difference. First operand 2770 states and 3700 transitions. Second operand 11 states. [2019-10-03 02:26:13,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:26:13,891 INFO L93 Difference]: Finished difference Result 2809 states and 3749 transitions. [2019-10-03 02:26:13,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-03 02:26:13,893 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 303 [2019-10-03 02:26:13,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:26:13,915 INFO L225 Difference]: With dead ends: 2809 [2019-10-03 02:26:13,916 INFO L226 Difference]: Without dead ends: 2795 [2019-10-03 02:26:13,917 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2019-10-03 02:26:13,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2795 states. [2019-10-03 02:26:14,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2795 to 2794. [2019-10-03 02:26:14,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2794 states. [2019-10-03 02:26:14,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 3733 transitions. [2019-10-03 02:26:14,050 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 3733 transitions. Word has length 303 [2019-10-03 02:26:14,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:26:14,051 INFO L475 AbstractCegarLoop]: Abstraction has 2794 states and 3733 transitions. [2019-10-03 02:26:14,052 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-03 02:26:14,052 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 3733 transitions. [2019-10-03 02:26:14,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2019-10-03 02:26:14,074 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:26:14,075 INFO L411 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:26:14,075 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:26:14,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:26:14,076 INFO L82 PathProgramCache]: Analyzing trace with hash 766776102, now seen corresponding path program 1 times [2019-10-03 02:26:14,076 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:26:14,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:26:14,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:26:14,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:26:14,091 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:26:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:26:14,516 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2019-10-03 02:26:14,517 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:26:14,517 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:26:14,517 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:26:14,518 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:26:14,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:26:14,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:26:14,519 INFO L87 Difference]: Start difference. First operand 2794 states and 3733 transitions. Second operand 5 states. [2019-10-03 02:26:14,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:26:14,631 INFO L93 Difference]: Finished difference Result 2802 states and 3742 transitions. [2019-10-03 02:26:14,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:26:14,632 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 303 [2019-10-03 02:26:14,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:26:14,651 INFO L225 Difference]: With dead ends: 2802 [2019-10-03 02:26:14,651 INFO L226 Difference]: Without dead ends: 2802 [2019-10-03 02:26:14,652 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:26:14,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2802 states. [2019-10-03 02:26:14,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2802 to 2798. [2019-10-03 02:26:14,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2798 states. [2019-10-03 02:26:14,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 3737 transitions. [2019-10-03 02:26:14,746 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 3737 transitions. Word has length 303 [2019-10-03 02:26:14,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:26:14,746 INFO L475 AbstractCegarLoop]: Abstraction has 2798 states and 3737 transitions. [2019-10-03 02:26:14,747 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:26:14,747 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 3737 transitions. [2019-10-03 02:26:14,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2019-10-03 02:26:14,766 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:26:14,767 INFO L411 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:26:14,767 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:26:14,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:26:14,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1931845078, now seen corresponding path program 1 times [2019-10-03 02:26:14,768 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:26:14,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:26:14,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:26:14,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:26:14,780 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:26:14,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:26:15,193 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2019-10-03 02:26:15,194 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:26:15,194 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:26:15,194 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:26:15,195 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:26:15,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:26:15,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:26:15,196 INFO L87 Difference]: Start difference. First operand 2798 states and 3737 transitions. Second operand 3 states. [2019-10-03 02:26:15,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:26:15,361 INFO L93 Difference]: Finished difference Result 2801 states and 3740 transitions. [2019-10-03 02:26:15,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:26:15,364 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 330 [2019-10-03 02:26:15,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:26:15,385 INFO L225 Difference]: With dead ends: 2801 [2019-10-03 02:26:15,385 INFO L226 Difference]: Without dead ends: 2801 [2019-10-03 02:26:15,386 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:26:15,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2019-10-03 02:26:15,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 2799. [2019-10-03 02:26:15,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2799 states. [2019-10-03 02:26:15,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2799 states to 2799 states and 3738 transitions. [2019-10-03 02:26:15,504 INFO L78 Accepts]: Start accepts. Automaton has 2799 states and 3738 transitions. Word has length 330 [2019-10-03 02:26:15,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:26:15,505 INFO L475 AbstractCegarLoop]: Abstraction has 2799 states and 3738 transitions. [2019-10-03 02:26:15,505 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:26:15,505 INFO L276 IsEmpty]: Start isEmpty. Operand 2799 states and 3738 transitions. [2019-10-03 02:26:15,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2019-10-03 02:26:15,524 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:26:15,524 INFO L411 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:26:15,525 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:26:15,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:26:15,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1217551191, now seen corresponding path program 1 times [2019-10-03 02:26:15,526 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:26:15,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:26:15,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:26:15,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:26:15,541 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:26:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:26:15,874 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2019-10-03 02:26:15,875 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:26:15,875 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:26:15,875 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:26:15,876 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:26:15,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:26:15,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:26:15,877 INFO L87 Difference]: Start difference. First operand 2799 states and 3738 transitions. Second operand 3 states. [2019-10-03 02:26:15,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:26:15,947 INFO L93 Difference]: Finished difference Result 2790 states and 3725 transitions. [2019-10-03 02:26:15,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:26:15,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 332 [2019-10-03 02:26:15,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:26:15,983 INFO L225 Difference]: With dead ends: 2790 [2019-10-03 02:26:15,983 INFO L226 Difference]: Without dead ends: 2790 [2019-10-03 02:26:15,984 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:26:15,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2790 states. [2019-10-03 02:26:16,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2790 to 2785. [2019-10-03 02:26:16,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2785 states. [2019-10-03 02:26:16,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 3719 transitions. [2019-10-03 02:26:16,083 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 3719 transitions. Word has length 332 [2019-10-03 02:26:16,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:26:16,084 INFO L475 AbstractCegarLoop]: Abstraction has 2785 states and 3719 transitions. [2019-10-03 02:26:16,084 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:26:16,084 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 3719 transitions. [2019-10-03 02:26:16,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2019-10-03 02:26:16,102 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:26:16,102 INFO L411 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:26:16,103 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:26:16,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:26:16,104 INFO L82 PathProgramCache]: Analyzing trace with hash 969971693, now seen corresponding path program 1 times [2019-10-03 02:26:16,104 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:26:16,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:26:16,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:26:16,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:26:16,114 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:26:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:26:16,738 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2019-10-03 02:26:16,739 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:26:16,739 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:26:16,739 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:26:16,740 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:26:16,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:26:16,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:26:16,741 INFO L87 Difference]: Start difference. First operand 2785 states and 3719 transitions. Second operand 6 states. [2019-10-03 02:26:24,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:26:24,702 INFO L93 Difference]: Finished difference Result 2798 states and 3738 transitions. [2019-10-03 02:26:24,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:26:24,705 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 343 [2019-10-03 02:26:24,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:26:24,717 INFO L225 Difference]: With dead ends: 2798 [2019-10-03 02:26:24,717 INFO L226 Difference]: Without dead ends: 2798 [2019-10-03 02:26:24,718 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:26:24,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2019-10-03 02:26:24,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2786. [2019-10-03 02:26:24,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2786 states. [2019-10-03 02:26:24,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2786 states to 2786 states and 3720 transitions. [2019-10-03 02:26:24,794 INFO L78 Accepts]: Start accepts. Automaton has 2786 states and 3720 transitions. Word has length 343 [2019-10-03 02:26:24,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:26:24,794 INFO L475 AbstractCegarLoop]: Abstraction has 2786 states and 3720 transitions. [2019-10-03 02:26:24,794 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:26:24,795 INFO L276 IsEmpty]: Start isEmpty. Operand 2786 states and 3720 transitions. [2019-10-03 02:26:24,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2019-10-03 02:26:24,810 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:26:24,810 INFO L411 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:26:24,811 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:26:24,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:26:24,811 INFO L82 PathProgramCache]: Analyzing trace with hash -574530098, now seen corresponding path program 1 times [2019-10-03 02:26:24,811 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:26:24,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:26:24,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:26:24,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:26:24,822 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:26:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:26:25,869 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2019-10-03 02:26:26,033 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2019-10-03 02:26:26,033 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:26:26,034 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:26:26,036 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 346 with the following transitions: [2019-10-03 02:26:26,042 INFO L207 CegarAbsIntRunner]: [6], [7], [196], [199], [224], [226], [227], [228], [233], [235], [237], [241], [243], [249], [251], [252], [253], [254], [260], [261], [262], [263], [269], [273], [275], [278], [284], [291], [308], [312], [314], [318], [323], [325], [327], [329], [331], [332], [358], [363], [368], [373], [376], [387], [388], [424], [428], [429], [430], [432], [433], [591], [592], [631], [764], [766], [770], [774], [777], [780], [788], [790], [792], [797], [799], [801], [803], [824], [826], [832], [834], [840], [843], [851], [852], [1048], [1050], [1051], [1052], [1058], [1059], [1060], [1062], [1066], [1068], [1069], [1167], [1168], [1197], [1199], [1200], [1239], [1240], [1630], [1632], [1633], [1636], [1638], [1640], [1642], [1644], [1646], [1649], [1651], [1653], [1655], [1657], [1659], [1661], [1663], [1868], [1880], [1883], [1886], [1898], [1901], [1904], [1906], [1911], [1914], [1916], [1939], [1942], [1945], [1966], [1987], [2000], [2013], [2016], [2019], [2190], [2191], [2326], [2327], [2328], [2514], [2515], [2525], [2526], [2644], [2646], [2647], [2648], [2650], [2651], [2692], [2693], [2719], [2721], [2724], [2752], [2756], [2927], [2931], [2932], [2933], [2934], [2935], [2936], [2947], [2948], [2949], [2950], [2951], [2952], [2953], [2954], [2955], [2956], [2957], [2958], [2989], [2990], [3029], [3030], [3031], [3032], [3033], [3034], [3035], [3036], [3037], [3038], [3039], [3040], [3041], [3042], [3043], [3044], [3055], [3056], [3091], [3092], [3093], [3094], [3095], [3097], [3098], [3131], [3132], [3201], [3202], [3203], [3204], [3205], [3206], [3207], [3208], [3209], [3210], [3211], [3212], [3213], [3214], [3215], [3216], [3217], [3218], [3219], [3220], [3221], [3222], [3223], [3224], [3225], [3226], [3227], [3228], [3267], [3268], [3269], [3270], [3271], [3272], [3287], [3457], [3458], [3459], [3460], [3513], [3514], [3515] [2019-10-03 02:26:26,127 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:26:26,127 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:26:26,257 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:26:26,259 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 104 root evaluator evaluations with a maximum evaluation depth of 0. Performed 104 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 206 variables. [2019-10-03 02:26:26,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:26:26,265 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:26:26,459 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:26:26,460 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:26:26,476 INFO L420 sIntCurrentIteration]: We unified 344 AI predicates to 344 [2019-10-03 02:26:26,476 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:26:26,477 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:26:26,478 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2019-10-03 02:26:26,478 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:26:26,479 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:26:26,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:26:26,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:26:26,479 INFO L87 Difference]: Start difference. First operand 2786 states and 3720 transitions. Second operand 2 states. [2019-10-03 02:26:26,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:26:26,480 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:26:26,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:26:26,481 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 345 [2019-10-03 02:26:26,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:26:26,481 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:26:26,481 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:26:26,482 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:26:26,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:26:26,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:26:26,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:26:26,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:26:26,483 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 345 [2019-10-03 02:26:26,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:26:26,483 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:26:26,483 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:26:26,484 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:26:26,484 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:26:26,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:26:26 BoogieIcfgContainer [2019-10-03 02:26:26,491 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:26:26,493 INFO L168 Benchmark]: Toolchain (without parser) took 39704.38 ms. Allocated memory was 139.5 MB in the beginning and 855.6 MB in the end (delta: 716.2 MB). Free memory was 77.8 MB in the beginning and 287.0 MB in the end (delta: -209.2 MB). Peak memory consumption was 507.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:26:26,496 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 139.5 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-03 02:26:26,499 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3702.12 ms. Allocated memory was 139.5 MB in the beginning and 273.2 MB in the end (delta: 133.7 MB). Free memory was 77.6 MB in the beginning and 176.3 MB in the end (delta: -98.8 MB). Peak memory consumption was 111.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:26:26,507 INFO L168 Benchmark]: Boogie Preprocessor took 375.13 ms. Allocated memory is still 273.2 MB. Free memory was 176.3 MB in the beginning and 157.0 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:26:26,508 INFO L168 Benchmark]: RCFGBuilder took 5887.14 ms. Allocated memory was 273.2 MB in the beginning and 363.9 MB in the end (delta: 90.7 MB). Free memory was 157.0 MB in the beginning and 91.5 MB in the end (delta: 65.5 MB). Peak memory consumption was 156.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:26:26,510 INFO L168 Benchmark]: TraceAbstraction took 29734.26 ms. Allocated memory was 363.9 MB in the beginning and 855.6 MB in the end (delta: 491.8 MB). Free memory was 91.5 MB in the beginning and 287.0 MB in the end (delta: -195.5 MB). Peak memory consumption was 296.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:26:26,525 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 139.5 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3702.12 ms. Allocated memory was 139.5 MB in the beginning and 273.2 MB in the end (delta: 133.7 MB). Free memory was 77.6 MB in the beginning and 176.3 MB in the end (delta: -98.8 MB). Peak memory consumption was 111.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 375.13 ms. Allocated memory is still 273.2 MB. Free memory was 176.3 MB in the beginning and 157.0 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5887.14 ms. Allocated memory was 273.2 MB in the beginning and 363.9 MB in the end (delta: 90.7 MB). Free memory was 157.0 MB in the beginning and 91.5 MB in the end (delta: 65.5 MB). Peak memory consumption was 156.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29734.26 ms. Allocated memory was 363.9 MB in the beginning and 855.6 MB in the end (delta: 491.8 MB). Free memory was 91.5 MB in the beginning and 287.0 MB in the end (delta: -195.5 MB). Peak memory consumption was 296.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7649]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 157 procedures, 1493 locations, 1 error locations. SAFE Result, 29.6s OverallTime, 13 OverallIterations, 7 TraceHistogramMax, 19.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23269 SDtfs, 9779 SDslu, 70310 SDs, 0 SdLazy, 6534 SolverSat, 2436 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 432 GetRequests, 373 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2799occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.296511627906977 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 62 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 3719 NumberOfCodeBlocks, 3719 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 3706 ConstructedInterpolants, 0 QuantifiedInterpolants, 1423612 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 12 PerfectInterpolantSequences, 4857/4899 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...