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-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:44:21,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:44:21,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:44:21,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:44:21,734 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:44:21,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:44:21,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:44:21,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:44:21,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:44:21,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:44:21,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:44:21,760 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:44:21,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:44:21,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:44:21,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:44:21,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:44:21,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:44:21,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:44:21,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:44:21,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:44:21,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:44:21,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:44:21,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:44:21,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:44:21,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:44:21,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:44:21,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:44:21,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:44:21,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:44:21,797 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:44:21,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:44:21,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:44:21,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:44:21,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:44:21,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:44:21,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:44:21,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:44:21,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:44:21,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:44:21,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:44:21,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:44:21,805 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 [2019-09-20 13:44:21,825 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:44:21,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:44:21,826 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:44:21,826 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:44:21,827 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:44:21,827 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:44:21,828 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:44:21,828 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:44:21,828 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:44:21,828 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:44:21,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:44:21,831 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:44:21,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:44:21,832 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:44:21,832 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:44:21,832 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:44:21,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:44:21,833 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:44:21,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:44:21,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:44:21,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:44:21,833 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:44:21,834 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:44:21,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:44:21,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:44:21,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:44:21,835 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:44:21,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:44:21,835 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:44:21,835 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:44:21,889 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:44:21,904 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:44:21,907 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:44:21,909 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:44:21,910 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:44:21,911 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i [2019-09-20 13:44:21,971 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a251957d8/14b59889de8d4d0098a22746cd90d715/FLAGad6d455e5 [2019-09-20 13:44:22,818 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:44:22,818 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i [2019-09-20 13:44:22,870 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a251957d8/14b59889de8d4d0098a22746cd90d715/FLAGad6d455e5 [2019-09-20 13:44:23,297 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a251957d8/14b59889de8d4d0098a22746cd90d715 [2019-09-20 13:44:23,306 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:44:23,308 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:44:23,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:44:23,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:44:23,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:44:23,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:44:23" (1/1) ... [2019-09-20 13:44:23,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eee4ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:23, skipping insertion in model container [2019-09-20 13:44:23,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:44:23" (1/1) ... [2019-09-20 13:44:23,324 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:44:23,454 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:44:24,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:44:24,986 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:44:25,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:44:25,766 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:44:25,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:25 WrapperNode [2019-09-20 13:44:25,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:44:25,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:44:25,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:44:25,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:44:25,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:25" (1/1) ... [2019-09-20 13:44:25,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:25" (1/1) ... [2019-09-20 13:44:25,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:25" (1/1) ... [2019-09-20 13:44:25,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:25" (1/1) ... [2019-09-20 13:44:26,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:25" (1/1) ... [2019-09-20 13:44:26,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:25" (1/1) ... [2019-09-20 13:44:26,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:25" (1/1) ... [2019-09-20 13:44:26,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:44:26,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:44:26,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:44:26,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:44:26,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:44:26,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:44:26,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:44:26,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-09-20 13:44:26,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2019-09-20 13:44:26,171 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-09-20 13:44:26,171 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-09-20 13:44:26,171 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-09-20 13:44:26,172 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-09-20 13:44:26,172 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-09-20 13:44:26,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-20 13:44:26,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-20 13:44:26,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-20 13:44:26,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-20 13:44:26,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-20 13:44:26,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-20 13:44:26,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-20 13:44:26,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2019-09-20 13:44:26,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-20 13:44:26,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-09-20 13:44:26,184 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-09-20 13:44:26,184 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-09-20 13:44:26,184 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-09-20 13:44:26,184 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2019-09-20 13:44:26,184 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-09-20 13:44:26,185 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2019-09-20 13:44:26,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-20 13:44:26,186 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-20 13:44:26,186 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-09-20 13:44:26,186 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-09-20 13:44:26,186 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2019-09-20 13:44:26,186 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-09-20 13:44:26,186 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2019-09-20 13:44:26,187 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-09-20 13:44:26,187 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice [2019-09-20 13:44:26,187 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2019-09-20 13:44:26,187 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2019-09-20 13:44:26,187 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2019-09-20 13:44:26,187 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2019-09-20 13:44:26,188 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2019-09-20 13:44:26,188 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2019-09-20 13:44:26,188 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_queue_stopped [2019-09-20 13:44:26,188 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2019-09-20 13:44:26,189 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2019-09-20 13:44:26,189 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc_bufs [2019-09-20 13:44:26,189 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2019-09-20 13:44:26,189 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_realloc_bufs [2019-09-20 13:44:26,189 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_lock [2019-09-20 13:44:26,189 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2019-09-20 13:44:26,190 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2019-09-20 13:44:26,190 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_encaps [2019-09-20 13:44:26,190 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_write_wakeup [2019-09-20 13:44:26,190 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_tx_timeout [2019-09-20 13:44:26,191 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_xmit [2019-09-20 13:44:26,191 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_close [2019-09-20 13:44:26,191 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_open [2019-09-20 13:44:26,191 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_change_mtu [2019-09-20 13:44:26,192 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_get_stats64 [2019-09-20 13:44:26,192 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_init [2019-09-20 13:44:26,192 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_uninit [2019-09-20 13:44:26,192 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_netdev [2019-09-20 13:44:26,193 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_setup [2019-09-20 13:44:26,193 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_receive_buf [2019-09-20 13:44:26,193 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_sync [2019-09-20 13:44:26,193 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc [2019-09-20 13:44:26,194 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_open [2019-09-20 13:44:26,194 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2019-09-20 13:44:26,194 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_hangup [2019-09-20 13:44:26,195 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc [2019-09-20 13:44:26,195 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc [2019-09-20 13:44:26,195 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc6 [2019-09-20 13:44:26,195 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc6 [2019-09-20 13:44:26,196 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2019-09-20 13:44:26,196 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_compat_ioctl [2019-09-20 13:44:26,197 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2019-09-20 13:44:26,197 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_init [2019-09-20 13:44:26,197 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_exit [2019-09-20 13:44:26,198 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_outfill [2019-09-20 13:44:26,198 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_keepalive [2019-09-20 13:44:26,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_3 [2019-09-20 13:44:26,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_4 [2019-09-20 13:44:26,199 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2019-09-20 13:44:26,199 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2019-09-20 13:44:26,200 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2019-09-20 13:44:26,200 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_2 [2019-09-20 13:44:26,200 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2019-09-20 13:44:26,201 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2019-09-20 13:44:26,202 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2019-09-20 13:44:26,203 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2019-09-20 13:44:26,203 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:44:26,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_1 [2019-09-20 13:44:26,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_2 [2019-09-20 13:44:26,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_sl_alloc_bufs_3 [2019-09-20 13:44:26,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdevice_4 [2019-09-20 13:44:26,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_5 [2019-09-20 13:44:26,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_6 [2019-09-20 13:44:26,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_7 [2019-09-20 13:44:26,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_8 [2019-09-20 13:44:26,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_9 [2019-09-20 13:44:26,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_10 [2019-09-20 13:44:26,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_11 [2019-09-20 13:44:26,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_12 [2019-09-20 13:44:26,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_13 [2019-09-20 13:44:26,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_14 [2019-09-20 13:44:26,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_15 [2019-09-20 13:44:26,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_16 [2019-09-20 13:44:26,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_17 [2019-09-20 13:44:26,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_slip_open_18 [2019-09-20 13:44:26,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_callback_ret_val [2019-09-20 13:44:26,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2019-09-20 13:44:26,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-09-20 13:44:26,207 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-09-20 13:44:26,207 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-09-20 13:44:26,208 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2019-09-20 13:44:26,208 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-09-20 13:44:26,208 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2019-09-20 13:44:26,208 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2019-09-20 13:44:26,209 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2019-09-20 13:44:26,209 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-09-20 13:44:26,209 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2019-09-20 13:44:26,210 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2019-09-20 13:44:26,210 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-09-20 13:44:26,210 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2019-09-20 13:44:26,210 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2019-09-20 13:44:26,211 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2019-09-20 13:44:26,211 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-09-20 13:44:26,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-20 13:44:26,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-20 13:44:26,212 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-09-20 13:44:26,212 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-09-20 13:44:26,212 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2019-09-20 13:44:26,213 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2019-09-20 13:44:26,213 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2019-09-20 13:44:26,213 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-20 13:44:26,213 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdevice [2019-09-20 13:44:26,213 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2019-09-20 13:44:26,213 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2019-09-20 13:44:26,214 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-09-20 13:44:26,214 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_compress [2019-09-20 13:44:26,215 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2019-09-20 13:44:26,218 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_init [2019-09-20 13:44:26,219 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_remember [2019-09-20 13:44:26,219 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_uncompress [2019-09-20 13:44:26,219 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_chars_in_buffer [2019-09-20 13:44:26,226 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2019-09-20 13:44:26,227 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2019-09-20 13:44:26,227 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_mode_ioctl [2019-09-20 13:44:26,228 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_ldisc [2019-09-20 13:44:26,228 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_ldisc [2019-09-20 13:44:26,229 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-09-20 13:44:26,229 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice_queue [2019-09-20 13:44:26,229 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-09-20 13:44:26,229 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-20 13:44:26,229 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-20 13:44:26,230 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-20 13:44:26,230 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-09-20 13:44:26,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:44:26,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-20 13:44:26,230 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-09-20 13:44:26,231 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-09-20 13:44:26,231 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-09-20 13:44:26,231 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-09-20 13:44:26,231 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-09-20 13:44:26,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:44:26,232 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-20 13:44:26,232 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-09-20 13:44:26,232 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-09-20 13:44:26,232 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-09-20 13:44:26,232 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:44:26,233 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-20 13:44:26,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:44:26,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-20 13:44:26,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-20 13:44:26,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-20 13:44:26,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 13:44:26,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-20 13:44:26,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:44:26,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-20 13:44:26,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-20 13:44:26,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-20 13:44:26,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-20 13:44:26,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-20 13:44:26,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-20 13:44:26,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-20 13:44:26,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2019-09-20 13:44:26,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-09-20 13:44:26,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_callback_ret_val [2019-09-20 13:44:26,236 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-09-20 13:44:26,236 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-09-20 13:44:26,236 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-09-20 13:44:26,236 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-09-20 13:44:26,236 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-09-20 13:44:26,236 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-09-20 13:44:26,237 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2019-09-20 13:44:26,237 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-09-20 13:44:26,237 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2019-09-20 13:44:26,237 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-09-20 13:44:26,237 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-09-20 13:44:26,237 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2019-09-20 13:44:26,237 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-09-20 13:44:26,238 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2019-09-20 13:44:26,238 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2019-09-20 13:44:26,238 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2019-09-20 13:44:26,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_2 [2019-09-20 13:44:26,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_8 [2019-09-20 13:44:26,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_10 [2019-09-20 13:44:26,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_12 [2019-09-20 13:44:26,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_14 [2019-09-20 13:44:26,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_16 [2019-09-20 13:44:26,239 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-09-20 13:44:26,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_7 [2019-09-20 13:44:26,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_9 [2019-09-20 13:44:26,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_11 [2019-09-20 13:44:26,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_13 [2019-09-20 13:44:26,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_15 [2019-09-20 13:44:26,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_17 [2019-09-20 13:44:26,240 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2019-09-20 13:44:26,240 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-09-20 13:44:26,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_1 [2019-09-20 13:44:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_5 [2019-09-20 13:44:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_6 [2019-09-20 13:44:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-20 13:44:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-20 13:44:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-20 13:44:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-09-20 13:44:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_3 [2019-09-20 13:44:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_4 [2019-09-20 13:44:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2019-09-20 13:44:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2019-09-20 13:44:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2019-09-20 13:44:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_2 [2019-09-20 13:44:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2019-09-20 13:44:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2019-09-20 13:44:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2019-09-20 13:44:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2019-09-20 13:44:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-09-20 13:44:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-09-20 13:44:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-09-20 13:44:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure tty_chars_in_buffer [2019-09-20 13:44:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2019-09-20 13:44:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure tty_mode_ioctl [2019-09-20 13:44:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2019-09-20 13:44:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_ldisc [2019-09-20 13:44:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_ldisc [2019-09-20 13:44:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2019-09-20 13:44:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-09-20 13:44:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2019-09-20 13:44:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:44:26,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:44:26,245 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2019-09-20 13:44:26,245 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-09-20 13:44:26,245 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2019-09-20 13:44:26,245 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-09-20 13:44:26,246 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2019-09-20 13:44:26,246 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdevice [2019-09-20 13:44:26,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdevice_4 [2019-09-20 13:44:26,246 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice_queue [2019-09-20 13:44:26,246 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice [2019-09-20 13:44:26,247 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-09-20 13:44:26,247 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2019-09-20 13:44:26,247 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2019-09-20 13:44:26,247 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2019-09-20 13:44:26,247 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2019-09-20 13:44:26,248 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2019-09-20 13:44:26,248 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2019-09-20 13:44:26,248 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2019-09-20 13:44:26,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:44:26,255 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2019-09-20 13:44:26,255 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_queue_stopped [2019-09-20 13:44:26,256 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2019-09-20 13:44:26,256 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2019-09-20 13:44:26,256 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2019-09-20 13:44:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2019-09-20 13:44:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2019-09-20 13:44:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-09-20 13:44:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2019-09-20 13:44:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2019-09-20 13:44:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_init [2019-09-20 13:44:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2019-09-20 13:44:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_compress [2019-09-20 13:44:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_uncompress [2019-09-20 13:44:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_remember [2019-09-20 13:44:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc [2019-09-20 13:44:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc [2019-09-20 13:44:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc6 [2019-09-20 13:44:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc6 [2019-09-20 13:44:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure sl_keepalive [2019-09-20 13:44:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure sl_outfill [2019-09-20 13:44:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2019-09-20 13:44:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc_bufs [2019-09-20 13:44:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_sl_alloc_bufs_3 [2019-09-20 13:44:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2019-09-20 13:44:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-09-20 13:44:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure sl_realloc_bufs [2019-09-20 13:44:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-09-20 13:44:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:44:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure sl_lock [2019-09-20 13:44:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2019-09-20 13:44:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2019-09-20 13:44:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure sl_encaps [2019-09-20 13:44:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-09-20 13:44:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:44:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure slip_write_wakeup [2019-09-20 13:44:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure sl_tx_timeout [2019-09-20 13:44:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure sl_xmit [2019-09-20 13:44:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure sl_close [2019-09-20 13:44:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure sl_open [2019-09-20 13:44:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure sl_change_mtu [2019-09-20 13:44:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure sl_get_stats64 [2019-09-20 13:44:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure sl_init [2019-09-20 13:44:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure sl_uninit [2019-09-20 13:44:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_netdev [2019-09-20 13:44:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure sl_setup [2019-09-20 13:44:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure slip_receive_buf [2019-09-20 13:44:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure sl_sync [2019-09-20 13:44:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc [2019-09-20 13:44:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure slip_open [2019-09-20 13:44:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_slip_open_18 [2019-09-20 13:44:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2019-09-20 13:44:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure slip_hangup [2019-09-20 13:44:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2019-09-20 13:44:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure slip_compat_ioctl [2019-09-20 13:44:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure slip_init [2019-09-20 13:44:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure slip_exit [2019-09-20 13:44:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-20 13:44:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-20 13:44:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2019-09-20 13:44:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:44:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-20 13:44:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:44:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:44:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 13:44:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:44:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:44:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-09-20 13:44:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-09-20 13:44:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-09-20 13:44:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-09-20 13:44:27,634 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-20 13:44:30,597 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:44:30,598 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 13:44:30,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:44:30 BoogieIcfgContainer [2019-09-20 13:44:30,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:44:30,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:44:30,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:44:30,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:44:30,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:44:23" (1/3) ... [2019-09-20 13:44:30,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d4f3c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:44:30, skipping insertion in model container [2019-09-20 13:44:30,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:25" (2/3) ... [2019-09-20 13:44:30,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d4f3c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:44:30, skipping insertion in model container [2019-09-20 13:44:30,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:44:30" (3/3) ... [2019-09-20 13:44:30,608 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i [2019-09-20 13:44:30,618 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:44:30,631 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:44:30,649 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:44:30,680 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:44:30,680 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:44:30,680 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:44:30,680 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:44:30,681 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:44:30,681 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:44:30,681 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:44:30,681 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:44:30,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states. [2019-09-20 13:44:30,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-09-20 13:44:30,776 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:44:30,778 INFO L407 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:44:30,781 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:44:30,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:44:30,786 INFO L82 PathProgramCache]: Analyzing trace with hash -507318405, now seen corresponding path program 1 times [2019-09-20 13:44:30,789 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:44:30,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:30,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:44:30,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:30,884 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:44:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:44:31,441 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2019-09-20 13:44:31,444 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:44:31,444 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:44:31,444 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:44:31,450 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:44:31,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:44:31,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:44:31,468 INFO L87 Difference]: Start difference. First operand 1433 states. Second operand 3 states. [2019-09-20 13:44:31,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:44:31,807 INFO L93 Difference]: Finished difference Result 2179 states and 2940 transitions. [2019-09-20 13:44:31,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:44:31,809 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2019-09-20 13:44:31,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:44:31,856 INFO L225 Difference]: With dead ends: 2179 [2019-09-20 13:44:31,856 INFO L226 Difference]: Without dead ends: 2066 [2019-09-20 13:44:31,858 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:44:31,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2066 states. [2019-09-20 13:44:32,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2066 to 2066. [2019-09-20 13:44:32,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2066 states. [2019-09-20 13:44:32,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2066 states to 2066 states and 2784 transitions. [2019-09-20 13:44:32,067 INFO L78 Accepts]: Start accepts. Automaton has 2066 states and 2784 transitions. Word has length 82 [2019-09-20 13:44:32,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:44:32,068 INFO L475 AbstractCegarLoop]: Abstraction has 2066 states and 2784 transitions. [2019-09-20 13:44:32,068 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:44:32,068 INFO L276 IsEmpty]: Start isEmpty. Operand 2066 states and 2784 transitions. [2019-09-20 13:44:32,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-09-20 13:44:32,083 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:44:32,083 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:44:32,084 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:44:32,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:44:32,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1084395772, now seen corresponding path program 1 times [2019-09-20 13:44:32,084 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:44:32,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:32,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:44:32,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:32,097 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:44:32,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:44:32,410 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2019-09-20 13:44:32,410 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:44:32,411 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:44:32,411 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:44:32,421 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:44:32,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:44:32,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:44:32,422 INFO L87 Difference]: Start difference. First operand 2066 states and 2784 transitions. Second operand 5 states. [2019-09-20 13:44:37,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:44:37,803 INFO L93 Difference]: Finished difference Result 2066 states and 2782 transitions. [2019-09-20 13:44:37,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:44:37,804 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2019-09-20 13:44:37,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:44:37,817 INFO L225 Difference]: With dead ends: 2066 [2019-09-20 13:44:37,817 INFO L226 Difference]: Without dead ends: 2066 [2019-09-20 13:44:37,818 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:44:37,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2066 states. [2019-09-20 13:44:37,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2066 to 2066. [2019-09-20 13:44:37,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2066 states. [2019-09-20 13:44:37,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2066 states to 2066 states and 2782 transitions. [2019-09-20 13:44:37,893 INFO L78 Accepts]: Start accepts. Automaton has 2066 states and 2782 transitions. Word has length 142 [2019-09-20 13:44:37,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:44:37,894 INFO L475 AbstractCegarLoop]: Abstraction has 2066 states and 2782 transitions. [2019-09-20 13:44:37,894 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:44:37,894 INFO L276 IsEmpty]: Start isEmpty. Operand 2066 states and 2782 transitions. [2019-09-20 13:44:37,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-09-20 13:44:37,901 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:44:37,901 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:44:37,901 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:44:37,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:44:37,902 INFO L82 PathProgramCache]: Analyzing trace with hash 2068069058, now seen corresponding path program 1 times [2019-09-20 13:44:37,902 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:44:37,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:37,911 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:44:37,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:37,911 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:44:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:44:38,150 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2019-09-20 13:44:38,151 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:44:38,151 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-20 13:44:38,151 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:44:38,152 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-20 13:44:38,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-20 13:44:38,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:44:38,153 INFO L87 Difference]: Start difference. First operand 2066 states and 2782 transitions. Second operand 10 states. [2019-09-20 13:44:38,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:44:38,325 INFO L93 Difference]: Finished difference Result 2076 states and 2790 transitions. [2019-09-20 13:44:38,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:44:38,326 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 142 [2019-09-20 13:44:38,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:44:38,341 INFO L225 Difference]: With dead ends: 2076 [2019-09-20 13:44:38,341 INFO L226 Difference]: Without dead ends: 2068 [2019-09-20 13:44:38,342 INFO L636 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 [2019-09-20 13:44:38,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2019-09-20 13:44:38,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 2066. [2019-09-20 13:44:38,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2066 states. [2019-09-20 13:44:38,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2066 states to 2066 states and 2780 transitions. [2019-09-20 13:44:38,441 INFO L78 Accepts]: Start accepts. Automaton has 2066 states and 2780 transitions. Word has length 142 [2019-09-20 13:44:38,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:44:38,442 INFO L475 AbstractCegarLoop]: Abstraction has 2066 states and 2780 transitions. [2019-09-20 13:44:38,443 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-20 13:44:38,443 INFO L276 IsEmpty]: Start isEmpty. Operand 2066 states and 2780 transitions. [2019-09-20 13:44:38,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-09-20 13:44:38,449 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:44:38,450 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:44:38,450 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:44:38,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:44:38,450 INFO L82 PathProgramCache]: Analyzing trace with hash 563079878, now seen corresponding path program 1 times [2019-09-20 13:44:38,450 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:44:38,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:38,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:44:38,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:38,465 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:44:38,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:44:38,648 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2019-09-20 13:44:38,649 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:44:38,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:44:38,649 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:44:38,650 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:44:38,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:44:38,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:44:38,651 INFO L87 Difference]: Start difference. First operand 2066 states and 2780 transitions. Second operand 7 states. [2019-09-20 13:44:38,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:44:38,757 INFO L93 Difference]: Finished difference Result 2077 states and 2791 transitions. [2019-09-20 13:44:38,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:44:38,758 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 149 [2019-09-20 13:44:38,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:44:38,771 INFO L225 Difference]: With dead ends: 2077 [2019-09-20 13:44:38,771 INFO L226 Difference]: Without dead ends: 2077 [2019-09-20 13:44:38,772 INFO L636 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 [2019-09-20 13:44:38,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2077 states. [2019-09-20 13:44:38,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2077 to 2074. [2019-09-20 13:44:38,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2074 states. [2019-09-20 13:44:38,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2074 states to 2074 states and 2788 transitions. [2019-09-20 13:44:38,890 INFO L78 Accepts]: Start accepts. Automaton has 2074 states and 2788 transitions. Word has length 149 [2019-09-20 13:44:38,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:44:38,891 INFO L475 AbstractCegarLoop]: Abstraction has 2074 states and 2788 transitions. [2019-09-20 13:44:38,891 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:44:38,891 INFO L276 IsEmpty]: Start isEmpty. Operand 2074 states and 2788 transitions. [2019-09-20 13:44:38,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-09-20 13:44:38,900 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:44:38,900 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:44:38,900 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:44:38,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:44:38,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1989519261, now seen corresponding path program 1 times [2019-09-20 13:44:38,901 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:44:38,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:38,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:44:38,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:38,910 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:44:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:44:39,113 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2019-09-20 13:44:39,114 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:44:39,114 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:44:39,114 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:44:39,115 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:44:39,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:44:39,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:44:39,116 INFO L87 Difference]: Start difference. First operand 2074 states and 2788 transitions. Second operand 8 states. [2019-09-20 13:44:39,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:44:39,257 INFO L93 Difference]: Finished difference Result 2105 states and 2825 transitions. [2019-09-20 13:44:39,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-20 13:44:39,257 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 165 [2019-09-20 13:44:39,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:44:39,270 INFO L225 Difference]: With dead ends: 2105 [2019-09-20 13:44:39,271 INFO L226 Difference]: Without dead ends: 2105 [2019-09-20 13:44:39,271 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:44:39,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2019-09-20 13:44:39,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 2076. [2019-09-20 13:44:39,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2076 states. [2019-09-20 13:44:39,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2076 states to 2076 states and 2791 transitions. [2019-09-20 13:44:39,337 INFO L78 Accepts]: Start accepts. Automaton has 2076 states and 2791 transitions. Word has length 165 [2019-09-20 13:44:39,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:44:39,340 INFO L475 AbstractCegarLoop]: Abstraction has 2076 states and 2791 transitions. [2019-09-20 13:44:39,340 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:44:39,340 INFO L276 IsEmpty]: Start isEmpty. Operand 2076 states and 2791 transitions. [2019-09-20 13:44:39,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-09-20 13:44:39,351 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:44:39,352 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:44:39,352 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:44:39,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:44:39,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1164221539, now seen corresponding path program 1 times [2019-09-20 13:44:39,353 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:44:39,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:39,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:44:39,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:39,361 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:44:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:44:39,594 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-09-20 13:44:39,594 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:44:39,595 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:44:39,595 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:44:39,596 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:44:39,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:44:39,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:44:39,597 INFO L87 Difference]: Start difference. First operand 2076 states and 2791 transitions. Second operand 4 states. [2019-09-20 13:44:42,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:44:42,472 INFO L93 Difference]: Finished difference Result 2755 states and 3691 transitions. [2019-09-20 13:44:42,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:44:42,472 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 199 [2019-09-20 13:44:42,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:44:42,487 INFO L225 Difference]: With dead ends: 2755 [2019-09-20 13:44:42,487 INFO L226 Difference]: Without dead ends: 2755 [2019-09-20 13:44:42,488 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:44:42,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2019-09-20 13:44:42,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2754. [2019-09-20 13:44:42,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2754 states. [2019-09-20 13:44:42,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2754 states to 2754 states and 3690 transitions. [2019-09-20 13:44:42,568 INFO L78 Accepts]: Start accepts. Automaton has 2754 states and 3690 transitions. Word has length 199 [2019-09-20 13:44:42,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:44:42,568 INFO L475 AbstractCegarLoop]: Abstraction has 2754 states and 3690 transitions. [2019-09-20 13:44:42,568 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:44:42,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2754 states and 3690 transitions. [2019-09-20 13:44:42,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-09-20 13:44:42,582 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:44:42,583 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:44:42,583 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:44:42,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:44:42,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1404105960, now seen corresponding path program 1 times [2019-09-20 13:44:42,584 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:44:42,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:42,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:44:42,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:42,593 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:44:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:44:42,723 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2019-09-20 13:44:42,723 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:44:42,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:44:42,723 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:44:42,724 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:44:42,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:44:42,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:44:42,725 INFO L87 Difference]: Start difference. First operand 2754 states and 3690 transitions. Second operand 3 states. [2019-09-20 13:44:42,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:44:42,771 INFO L93 Difference]: Finished difference Result 2757 states and 3684 transitions. [2019-09-20 13:44:42,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:44:42,771 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2019-09-20 13:44:42,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:44:42,791 INFO L225 Difference]: With dead ends: 2757 [2019-09-20 13:44:42,791 INFO L226 Difference]: Without dead ends: 2757 [2019-09-20 13:44:42,791 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:44:42,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2757 states. [2019-09-20 13:44:42,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2757 to 2754. [2019-09-20 13:44:42,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2754 states. [2019-09-20 13:44:42,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2754 states to 2754 states and 3681 transitions. [2019-09-20 13:44:42,914 INFO L78 Accepts]: Start accepts. Automaton has 2754 states and 3681 transitions. Word has length 201 [2019-09-20 13:44:42,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:44:42,914 INFO L475 AbstractCegarLoop]: Abstraction has 2754 states and 3681 transitions. [2019-09-20 13:44:42,914 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:44:42,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2754 states and 3681 transitions. [2019-09-20 13:44:42,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-09-20 13:44:42,932 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:44:42,933 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:44:42,933 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:44:42,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:44:42,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1673341209, now seen corresponding path program 1 times [2019-09-20 13:44:42,934 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:44:42,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:42,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:44:42,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:42,943 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:44:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:44:43,447 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-09-20 13:44:43,447 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:44:43,448 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-20 13:44:43,448 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:44:43,449 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-20 13:44:43,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-20 13:44:43,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:44:43,450 INFO L87 Difference]: Start difference. First operand 2754 states and 3681 transitions. Second operand 11 states. [2019-09-20 13:44:43,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:44:43,808 INFO L93 Difference]: Finished difference Result 2793 states and 3730 transitions. [2019-09-20 13:44:43,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-09-20 13:44:43,810 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 204 [2019-09-20 13:44:43,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:44:43,827 INFO L225 Difference]: With dead ends: 2793 [2019-09-20 13:44:43,827 INFO L226 Difference]: Without dead ends: 2779 [2019-09-20 13:44:43,828 INFO L636 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 [2019-09-20 13:44:43,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2019-09-20 13:44:43,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 2778. [2019-09-20 13:44:43,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2778 states. [2019-09-20 13:44:43,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2778 states to 2778 states and 3714 transitions. [2019-09-20 13:44:43,904 INFO L78 Accepts]: Start accepts. Automaton has 2778 states and 3714 transitions. Word has length 204 [2019-09-20 13:44:43,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:44:43,905 INFO L475 AbstractCegarLoop]: Abstraction has 2778 states and 3714 transitions. [2019-09-20 13:44:43,905 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-20 13:44:43,905 INFO L276 IsEmpty]: Start isEmpty. Operand 2778 states and 3714 transitions. [2019-09-20 13:44:43,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-09-20 13:44:43,918 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:44:43,918 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:44:43,919 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:44:43,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:44:43,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1817750904, now seen corresponding path program 1 times [2019-09-20 13:44:43,919 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:44:43,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:43,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:44:43,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:43,927 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:44:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:44:44,147 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2019-09-20 13:44:44,147 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:44:44,147 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:44:44,148 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:44:44,148 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:44:44,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:44:44,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:44:44,149 INFO L87 Difference]: Start difference. First operand 2778 states and 3714 transitions. Second operand 5 states. [2019-09-20 13:44:44,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:44:44,242 INFO L93 Difference]: Finished difference Result 2786 states and 3723 transitions. [2019-09-20 13:44:44,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:44:44,242 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 204 [2019-09-20 13:44:44,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:44:44,259 INFO L225 Difference]: With dead ends: 2786 [2019-09-20 13:44:44,259 INFO L226 Difference]: Without dead ends: 2786 [2019-09-20 13:44:44,259 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:44:44,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2019-09-20 13:44:44,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 2782. [2019-09-20 13:44:44,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2782 states. [2019-09-20 13:44:44,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3718 transitions. [2019-09-20 13:44:44,336 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3718 transitions. Word has length 204 [2019-09-20 13:44:44,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:44:44,337 INFO L475 AbstractCegarLoop]: Abstraction has 2782 states and 3718 transitions. [2019-09-20 13:44:44,337 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:44:44,337 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3718 transitions. [2019-09-20 13:44:44,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-09-20 13:44:44,351 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:44:44,351 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:44:44,351 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:44:44,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:44:44,352 INFO L82 PathProgramCache]: Analyzing trace with hash 364838500, now seen corresponding path program 1 times [2019-09-20 13:44:44,352 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:44:44,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:44,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:44:44,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:44,361 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:44:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:44:44,521 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2019-09-20 13:44:44,521 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:44:44,521 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:44:44,521 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:44:44,522 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:44:44,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:44:44,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:44:44,523 INFO L87 Difference]: Start difference. First operand 2782 states and 3718 transitions. Second operand 3 states. [2019-09-20 13:44:44,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:44:44,631 INFO L93 Difference]: Finished difference Result 2785 states and 3721 transitions. [2019-09-20 13:44:44,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:44:44,632 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2019-09-20 13:44:44,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:44:44,649 INFO L225 Difference]: With dead ends: 2785 [2019-09-20 13:44:44,649 INFO L226 Difference]: Without dead ends: 2785 [2019-09-20 13:44:44,650 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:44:44,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2019-09-20 13:44:44,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 2783. [2019-09-20 13:44:44,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2783 states. [2019-09-20 13:44:44,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2783 states to 2783 states and 3719 transitions. [2019-09-20 13:44:44,745 INFO L78 Accepts]: Start accepts. Automaton has 2783 states and 3719 transitions. Word has length 231 [2019-09-20 13:44:44,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:44:44,747 INFO L475 AbstractCegarLoop]: Abstraction has 2783 states and 3719 transitions. [2019-09-20 13:44:44,747 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:44:44,747 INFO L276 IsEmpty]: Start isEmpty. Operand 2783 states and 3719 transitions. [2019-09-20 13:44:44,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-09-20 13:44:44,763 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:44:44,763 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:44:44,764 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:44:44,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:44:44,764 INFO L82 PathProgramCache]: Analyzing trace with hash 358568931, now seen corresponding path program 1 times [2019-09-20 13:44:44,764 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:44:44,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:44,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:44:44,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:44,774 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:44:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:44:44,974 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2019-09-20 13:44:44,975 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:44:44,975 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:44:44,975 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:44:44,977 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:44:44,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:44:44,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:44:44,978 INFO L87 Difference]: Start difference. First operand 2783 states and 3719 transitions. Second operand 3 states. [2019-09-20 13:44:45,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:44:45,041 INFO L93 Difference]: Finished difference Result 2774 states and 3706 transitions. [2019-09-20 13:44:45,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:44:45,042 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2019-09-20 13:44:45,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:44:45,072 INFO L225 Difference]: With dead ends: 2774 [2019-09-20 13:44:45,072 INFO L226 Difference]: Without dead ends: 2774 [2019-09-20 13:44:45,073 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:44:45,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2774 states. [2019-09-20 13:44:45,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2774 to 2769. [2019-09-20 13:44:45,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2769 states. [2019-09-20 13:44:45,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 3700 transitions. [2019-09-20 13:44:45,216 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 3700 transitions. Word has length 233 [2019-09-20 13:44:45,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:44:45,216 INFO L475 AbstractCegarLoop]: Abstraction has 2769 states and 3700 transitions. [2019-09-20 13:44:45,216 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:44:45,217 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 3700 transitions. [2019-09-20 13:44:45,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2019-09-20 13:44:45,230 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:44:45,231 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:44:45,231 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:44:45,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:44:45,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1963675953, now seen corresponding path program 1 times [2019-09-20 13:44:45,232 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:44:45,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:45,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:44:45,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:45,241 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:44:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:44:45,552 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2019-09-20 13:44:45,553 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:44:45,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:44:45,553 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:44:45,554 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:44:45,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:44:45,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:44:45,555 INFO L87 Difference]: Start difference. First operand 2769 states and 3700 transitions. Second operand 6 states. [2019-09-20 13:44:53,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:44:53,463 INFO L93 Difference]: Finished difference Result 2782 states and 3719 transitions. [2019-09-20 13:44:53,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:44:53,464 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 244 [2019-09-20 13:44:53,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:44:53,476 INFO L225 Difference]: With dead ends: 2782 [2019-09-20 13:44:53,477 INFO L226 Difference]: Without dead ends: 2782 [2019-09-20 13:44:53,477 INFO L636 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 [2019-09-20 13:44:53,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2782 states. [2019-09-20 13:44:53,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2782 to 2770. [2019-09-20 13:44:53,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2770 states. [2019-09-20 13:44:53,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 3701 transitions. [2019-09-20 13:44:53,541 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 3701 transitions. Word has length 244 [2019-09-20 13:44:53,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:44:53,542 INFO L475 AbstractCegarLoop]: Abstraction has 2770 states and 3701 transitions. [2019-09-20 13:44:53,542 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:44:53,542 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 3701 transitions. [2019-09-20 13:44:53,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-09-20 13:44:53,556 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:44:53,556 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:44:53,557 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:44:53,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:44:53,557 INFO L82 PathProgramCache]: Analyzing trace with hash -755457230, now seen corresponding path program 1 times [2019-09-20 13:44:53,557 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:44:53,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:53,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:44:53,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:53,566 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)