java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:03:28,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:03:28,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:03:28,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:03:28,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:03:28,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:03:28,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:03:28,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:03:28,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:03:28,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:03:28,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:03:28,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:03:28,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:03:28,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:03:28,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:03:29,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:03:29,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:03:29,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:03:29,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:03:29,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:03:29,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:03:29,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:03:29,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:03:29,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:03:29,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:03:29,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:03:29,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:03:29,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:03:29,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:03:29,027 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:03:29,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:03:29,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:03:29,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:03:29,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:03:29,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:03:29,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:03:29,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:03:29,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:03:29,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:03:29,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:03:29,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:03:29,040 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:03:29,064 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:03:29,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:03:29,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:03:29,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:03:29,067 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:03:29,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:03:29,068 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:03:29,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:03:29,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:03:29,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:03:29,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:03:29,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:03:29,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:03:29,070 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:03:29,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:03:29,070 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:03:29,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:03:29,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:03:29,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:03:29,071 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:03:29,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:03:29,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:03:29,072 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:03:29,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:03:29,073 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:03:29,073 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:03:29,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:03:29,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:03:29,073 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:03:29,371 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:03:29,391 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:03:29,395 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:03:29,397 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:03:29,397 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:03:29,398 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-13 21:03:29,480 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bfc358f9/9aaec98db9d447c99a2e01794d71cf76/FLAGd28f8429c [2019-10-13 21:03:30,327 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:03:30,327 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-13 21:03:30,373 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bfc358f9/9aaec98db9d447c99a2e01794d71cf76/FLAGd28f8429c [2019-10-13 21:03:30,778 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bfc358f9/9aaec98db9d447c99a2e01794d71cf76 [2019-10-13 21:03:30,788 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:03:30,790 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:03:30,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:03:30,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:03:30,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:03:30,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:03:30" (1/1) ... [2019-10-13 21:03:30,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69ad50f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:03:30, skipping insertion in model container [2019-10-13 21:03:30,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:03:30" (1/1) ... [2019-10-13 21:03:30,807 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:03:30,935 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:03:32,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:03:32,870 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:03:33,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:03:33,524 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:03:33,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:03:33 WrapperNode [2019-10-13 21:03:33,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:03:33,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:03:33,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:03:33,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:03:33,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:03:33" (1/1) ... [2019-10-13 21:03:33,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:03:33" (1/1) ... [2019-10-13 21:03:33,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:03:33" (1/1) ... [2019-10-13 21:03:33,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:03:33" (1/1) ... [2019-10-13 21:03:33,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:03:33" (1/1) ... [2019-10-13 21:03:33,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:03:33" (1/1) ... [2019-10-13 21:03:33,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:03:33" (1/1) ... [2019-10-13 21:03:33,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:03:33,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:03:33,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:03:33,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:03:33,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:03:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:03:33,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:03:33,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:03:33,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-13 21:03:33,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2019-10-13 21:03:33,950 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-13 21:03:33,952 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-10-13 21:03:33,952 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-10-13 21:03:33,952 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-10-13 21:03:33,953 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-13 21:03:33,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 21:03:33,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 21:03:33,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-13 21:03:33,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-13 21:03:33,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 21:03:33,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 21:03:33,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 21:03:33,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 21:03:33,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2019-10-13 21:03:33,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 21:03:33,960 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-13 21:03:33,961 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 21:03:33,961 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-13 21:03:33,961 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2019-10-13 21:03:33,961 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-13 21:03:33,961 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2019-10-13 21:03:33,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 21:03:33,962 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 21:03:33,962 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 21:03:33,962 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-13 21:03:33,962 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2019-10-13 21:03:33,962 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-10-13 21:03:33,962 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2019-10-13 21:03:33,963 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-10-13 21:03:33,963 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice [2019-10-13 21:03:33,963 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2019-10-13 21:03:33,963 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2019-10-13 21:03:33,964 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2019-10-13 21:03:33,964 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2019-10-13 21:03:33,964 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2019-10-13 21:03:33,964 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2019-10-13 21:03:33,964 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_queue_stopped [2019-10-13 21:03:33,964 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2019-10-13 21:03:33,965 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2019-10-13 21:03:33,965 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc_bufs [2019-10-13 21:03:33,965 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2019-10-13 21:03:33,965 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_realloc_bufs [2019-10-13 21:03:33,965 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_lock [2019-10-13 21:03:33,965 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2019-10-13 21:03:33,965 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2019-10-13 21:03:33,966 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_encaps [2019-10-13 21:03:33,966 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_write_wakeup [2019-10-13 21:03:33,966 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_tx_timeout [2019-10-13 21:03:33,966 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_xmit [2019-10-13 21:03:33,966 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_close [2019-10-13 21:03:33,966 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_open [2019-10-13 21:03:33,966 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_change_mtu [2019-10-13 21:03:33,967 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_get_stats64 [2019-10-13 21:03:33,967 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_init [2019-10-13 21:03:33,967 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_uninit [2019-10-13 21:03:33,967 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_netdev [2019-10-13 21:03:33,967 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_setup [2019-10-13 21:03:33,967 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_receive_buf [2019-10-13 21:03:33,968 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_sync [2019-10-13 21:03:33,968 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc [2019-10-13 21:03:33,968 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_open [2019-10-13 21:03:33,969 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2019-10-13 21:03:33,969 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_hangup [2019-10-13 21:03:33,969 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc [2019-10-13 21:03:33,969 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc [2019-10-13 21:03:33,969 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc6 [2019-10-13 21:03:33,969 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc6 [2019-10-13 21:03:33,969 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2019-10-13 21:03:33,969 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_compat_ioctl [2019-10-13 21:03:33,970 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2019-10-13 21:03:33,970 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_init [2019-10-13 21:03:33,971 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_exit [2019-10-13 21:03:33,971 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_outfill [2019-10-13 21:03:33,971 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_keepalive [2019-10-13 21:03:33,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_3 [2019-10-13 21:03:33,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_4 [2019-10-13 21:03:33,972 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2019-10-13 21:03:33,973 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2019-10-13 21:03:33,973 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2019-10-13 21:03:33,973 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_2 [2019-10-13 21:03:33,973 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2019-10-13 21:03:33,974 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2019-10-13 21:03:33,974 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2019-10-13 21:03:33,975 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2019-10-13 21:03:33,975 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:03:33,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_1 [2019-10-13 21:03:33,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_2 [2019-10-13 21:03:33,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_sl_alloc_bufs_3 [2019-10-13 21:03:33,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdevice_4 [2019-10-13 21:03:33,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_5 [2019-10-13 21:03:33,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_6 [2019-10-13 21:03:33,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_7 [2019-10-13 21:03:33,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_8 [2019-10-13 21:03:33,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_9 [2019-10-13 21:03:33,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_10 [2019-10-13 21:03:33,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_11 [2019-10-13 21:03:33,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_12 [2019-10-13 21:03:33,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_13 [2019-10-13 21:03:33,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_14 [2019-10-13 21:03:33,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_15 [2019-10-13 21:03:33,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_16 [2019-10-13 21:03:33,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_17 [2019-10-13 21:03:33,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_slip_open_18 [2019-10-13 21:03:33,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 21:03:33,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_callback_ret_val [2019-10-13 21:03:33,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2019-10-13 21:03:33,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 21:03:33,978 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-13 21:03:33,979 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-13 21:03:33,979 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2019-10-13 21:03:33,979 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-13 21:03:33,979 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2019-10-13 21:03:33,980 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2019-10-13 21:03:33,980 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2019-10-13 21:03:33,980 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-10-13 21:03:33,980 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2019-10-13 21:03:33,980 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2019-10-13 21:03:33,981 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-10-13 21:03:33,981 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2019-10-13 21:03:33,981 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2019-10-13 21:03:33,982 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2019-10-13 21:03:33,982 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-10-13 21:03:33,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 21:03:33,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 21:03:33,982 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-13 21:03:33,982 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-10-13 21:03:33,983 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2019-10-13 21:03:33,983 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2019-10-13 21:03:33,983 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2019-10-13 21:03:33,983 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 21:03:33,984 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdevice [2019-10-13 21:03:33,984 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2019-10-13 21:03:33,984 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2019-10-13 21:03:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-13 21:03:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_compress [2019-10-13 21:03:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2019-10-13 21:03:33,989 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_init [2019-10-13 21:03:33,989 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_remember [2019-10-13 21:03:33,989 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_uncompress [2019-10-13 21:03:33,990 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_chars_in_buffer [2019-10-13 21:03:33,993 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2019-10-13 21:03:33,993 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2019-10-13 21:03:33,993 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_mode_ioctl [2019-10-13 21:03:33,993 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_ldisc [2019-10-13 21:03:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_ldisc [2019-10-13 21:03:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-10-13 21:03:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice_queue [2019-10-13 21:03:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-13 21:03:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 21:03:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 21:03:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 21:03:33,995 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 21:03:33,995 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 21:03:33,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:03:33,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 21:03:33,995 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-13 21:03:33,995 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-10-13 21:03:33,995 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-10-13 21:03:33,996 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-10-13 21:03:33,996 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-13 21:03:33,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:03:33,996 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 21:03:33,996 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-13 21:03:33,996 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-13 21:03:33,996 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-13 21:03:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:03:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 21:03:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 21:03:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:03:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 21:03:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 21:03:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 21:03:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 21:03:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:03:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 21:03:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 21:03:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-13 21:03:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-13 21:03:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 21:03:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 21:03:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 21:03:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 21:03:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 21:03:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2019-10-13 21:03:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_callback_ret_val [2019-10-13 21:03:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-13 21:03:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-13 21:03:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-10-13 21:03:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-13 21:03:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 21:03:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-13 21:03:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2019-10-13 21:03:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-13 21:03:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2019-10-13 21:03:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 21:03:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-13 21:03:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2019-10-13 21:03:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-13 21:03:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2019-10-13 21:03:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2019-10-13 21:03:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2019-10-13 21:03:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_2 [2019-10-13 21:03:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_8 [2019-10-13 21:03:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_10 [2019-10-13 21:03:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_12 [2019-10-13 21:03:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_14 [2019-10-13 21:03:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_16 [2019-10-13 21:03:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-10-13 21:03:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_7 [2019-10-13 21:03:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_9 [2019-10-13 21:03:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_11 [2019-10-13 21:03:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_13 [2019-10-13 21:03:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_15 [2019-10-13 21:03:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_17 [2019-10-13 21:03:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2019-10-13 21:03:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-10-13 21:03:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_1 [2019-10-13 21:03:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_5 [2019-10-13 21:03:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_6 [2019-10-13 21:03:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 21:03:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 21:03:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 21:03:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 21:03:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_3 [2019-10-13 21:03:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_4 [2019-10-13 21:03:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2019-10-13 21:03:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2019-10-13 21:03:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2019-10-13 21:03:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_2 [2019-10-13 21:03:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2019-10-13 21:03:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2019-10-13 21:03:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2019-10-13 21:03:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2019-10-13 21:03:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-13 21:03:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-13 21:03:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-10-13 21:03:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure tty_chars_in_buffer [2019-10-13 21:03:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2019-10-13 21:03:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure tty_mode_ioctl [2019-10-13 21:03:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2019-10-13 21:03:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_ldisc [2019-10-13 21:03:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_ldisc [2019-10-13 21:03:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2019-10-13 21:03:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-13 21:03:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2019-10-13 21:03:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:03:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:03:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2019-10-13 21:03:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-10-13 21:03:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2019-10-13 21:03:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-10-13 21:03:34,008 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2019-10-13 21:03:34,008 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdevice [2019-10-13 21:03:34,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdevice_4 [2019-10-13 21:03:34,008 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice_queue [2019-10-13 21:03:34,008 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice [2019-10-13 21:03:34,008 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-10-13 21:03:34,008 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2019-10-13 21:03:34,008 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2019-10-13 21:03:34,008 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2019-10-13 21:03:34,009 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2019-10-13 21:03:34,009 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2019-10-13 21:03:34,009 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2019-10-13 21:03:34,009 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2019-10-13 21:03:34,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:03:34,009 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2019-10-13 21:03:34,009 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_queue_stopped [2019-10-13 21:03:34,010 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2019-10-13 21:03:34,010 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2019-10-13 21:03:34,010 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2019-10-13 21:03:34,010 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2019-10-13 21:03:34,010 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2019-10-13 21:03:34,010 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-10-13 21:03:34,010 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2019-10-13 21:03:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2019-10-13 21:03:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_init [2019-10-13 21:03:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2019-10-13 21:03:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_compress [2019-10-13 21:03:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_uncompress [2019-10-13 21:03:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_remember [2019-10-13 21:03:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc [2019-10-13 21:03:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc [2019-10-13 21:03:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc6 [2019-10-13 21:03:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc6 [2019-10-13 21:03:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure sl_keepalive [2019-10-13 21:03:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure sl_outfill [2019-10-13 21:03:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2019-10-13 21:03:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc_bufs [2019-10-13 21:03:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_sl_alloc_bufs_3 [2019-10-13 21:03:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2019-10-13 21:03:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 21:03:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure sl_realloc_bufs [2019-10-13 21:03:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 21:03:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:03:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure sl_lock [2019-10-13 21:03:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2019-10-13 21:03:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2019-10-13 21:03:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure sl_encaps [2019-10-13 21:03:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-13 21:03:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:03:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure slip_write_wakeup [2019-10-13 21:03:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure sl_tx_timeout [2019-10-13 21:03:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure sl_xmit [2019-10-13 21:03:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure sl_close [2019-10-13 21:03:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure sl_open [2019-10-13 21:03:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure sl_change_mtu [2019-10-13 21:03:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure sl_get_stats64 [2019-10-13 21:03:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure sl_init [2019-10-13 21:03:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure sl_uninit [2019-10-13 21:03:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_netdev [2019-10-13 21:03:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure sl_setup [2019-10-13 21:03:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure slip_receive_buf [2019-10-13 21:03:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure sl_sync [2019-10-13 21:03:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc [2019-10-13 21:03:34,016 INFO L130 BoogieDeclarations]: Found specification of procedure slip_open [2019-10-13 21:03:34,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_slip_open_18 [2019-10-13 21:03:34,016 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2019-10-13 21:03:34,016 INFO L130 BoogieDeclarations]: Found specification of procedure slip_hangup [2019-10-13 21:03:34,016 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2019-10-13 21:03:34,016 INFO L130 BoogieDeclarations]: Found specification of procedure slip_compat_ioctl [2019-10-13 21:03:34,016 INFO L130 BoogieDeclarations]: Found specification of procedure slip_init [2019-10-13 21:03:34,017 INFO L130 BoogieDeclarations]: Found specification of procedure slip_exit [2019-10-13 21:03:34,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 21:03:34,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 21:03:34,017 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2019-10-13 21:03:34,017 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:03:34,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 21:03:34,017 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 21:03:34,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 21:03:34,017 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:03:34,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:03:34,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 21:03:34,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:03:34,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:03:34,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 21:03:34,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 21:03:34,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 21:03:34,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 21:03:35,141 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 21:03:38,501 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:03:38,502 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 21:03:38,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:03:38 BoogieIcfgContainer [2019-10-13 21:03:38,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:03:38,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:03:38,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:03:38,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:03:38,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:03:30" (1/3) ... [2019-10-13 21:03:38,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f3002d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:03:38, skipping insertion in model container [2019-10-13 21:03:38,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:03:33" (2/3) ... [2019-10-13 21:03:38,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f3002d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:03:38, skipping insertion in model container [2019-10-13 21:03:38,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:03:38" (3/3) ... [2019-10-13 21:03:38,514 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-13 21:03:38,523 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:03:38,536 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:03:38,547 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:03:38,590 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:03:38,590 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:03:38,591 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:03:38,591 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:03:38,591 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:03:38,591 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:03:38,591 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:03:38,591 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:03:38,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2019-10-13 21:03:38,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-13 21:03:38,686 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:03:38,688 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:03:38,690 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:03:38,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:03:38,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1003017911, now seen corresponding path program 1 times [2019-10-13 21:03:38,701 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:03:38,702 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251828143] [2019-10-13 21:03:38,702 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:38,702 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:38,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:03:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:03:39,454 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2019-10-13 21:03:39,455 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251828143] [2019-10-13 21:03:39,456 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:03:39,456 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:03:39,457 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472128854] [2019-10-13 21:03:39,462 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:03:39,464 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:03:39,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:03:39,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:03:39,484 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 3 states. [2019-10-13 21:03:39,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:03:39,801 INFO L93 Difference]: Finished difference Result 3588 states and 4861 transitions. [2019-10-13 21:03:39,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:03:39,803 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2019-10-13 21:03:39,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:03:39,861 INFO L225 Difference]: With dead ends: 3588 [2019-10-13 21:03:39,862 INFO L226 Difference]: Without dead ends: 2080 [2019-10-13 21:03:39,877 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:03:39,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2080 states. [2019-10-13 21:03:40,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2080 to 2080. [2019-10-13 21:03:40,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2080 states. [2019-10-13 21:03:40,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 2799 transitions. [2019-10-13 21:03:40,234 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 2799 transitions. Word has length 166 [2019-10-13 21:03:40,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:03:40,237 INFO L462 AbstractCegarLoop]: Abstraction has 2080 states and 2799 transitions. [2019-10-13 21:03:40,237 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:03:40,237 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 2799 transitions. [2019-10-13 21:03:40,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-13 21:03:40,252 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:03:40,253 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:03:40,253 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:03:40,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:03:40,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1537564376, now seen corresponding path program 1 times [2019-10-13 21:03:40,254 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:03:40,254 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251223165] [2019-10-13 21:03:40,255 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:40,255 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:40,255 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:03:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:03:40,698 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2019-10-13 21:03:40,698 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251223165] [2019-10-13 21:03:40,699 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:03:40,699 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:03:40,699 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649127865] [2019-10-13 21:03:40,701 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:03:40,702 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:03:40,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:03:40,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:03:40,702 INFO L87 Difference]: Start difference. First operand 2080 states and 2799 transitions. Second operand 5 states. [2019-10-13 21:03:46,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:03:46,022 INFO L93 Difference]: Finished difference Result 4110 states and 5539 transitions. [2019-10-13 21:03:46,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:03:46,022 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 234 [2019-10-13 21:03:46,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:03:46,041 INFO L225 Difference]: With dead ends: 4110 [2019-10-13 21:03:46,041 INFO L226 Difference]: Without dead ends: 2080 [2019-10-13 21:03:46,051 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:03:46,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2080 states. [2019-10-13 21:03:46,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2080 to 2080. [2019-10-13 21:03:46,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2080 states. [2019-10-13 21:03:46,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 2797 transitions. [2019-10-13 21:03:46,192 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 2797 transitions. Word has length 234 [2019-10-13 21:03:46,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:03:46,196 INFO L462 AbstractCegarLoop]: Abstraction has 2080 states and 2797 transitions. [2019-10-13 21:03:46,196 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:03:46,196 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 2797 transitions. [2019-10-13 21:03:46,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-13 21:03:46,204 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:03:46,204 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:03:46,205 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:03:46,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:03:46,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1762709222, now seen corresponding path program 1 times [2019-10-13 21:03:46,206 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:03:46,206 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777629753] [2019-10-13 21:03:46,206 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:46,206 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:46,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:03:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:03:46,703 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2019-10-13 21:03:46,704 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777629753] [2019-10-13 21:03:46,704 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:03:46,704 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 21:03:46,705 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131042496] [2019-10-13 21:03:46,705 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 21:03:46,706 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:03:46,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 21:03:46,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:03:46,707 INFO L87 Difference]: Start difference. First operand 2080 states and 2797 transitions. Second operand 10 states. [2019-10-13 21:03:46,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:03:46,985 INFO L93 Difference]: Finished difference Result 4120 states and 5543 transitions. [2019-10-13 21:03:46,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:03:46,986 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 234 [2019-10-13 21:03:46,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:03:47,011 INFO L225 Difference]: With dead ends: 4120 [2019-10-13 21:03:47,012 INFO L226 Difference]: Without dead ends: 2082 [2019-10-13 21:03:47,021 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:03:47,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2019-10-13 21:03:47,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 2080. [2019-10-13 21:03:47,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2080 states. [2019-10-13 21:03:47,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 2795 transitions. [2019-10-13 21:03:47,141 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 2795 transitions. Word has length 234 [2019-10-13 21:03:47,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:03:47,143 INFO L462 AbstractCegarLoop]: Abstraction has 2080 states and 2795 transitions. [2019-10-13 21:03:47,143 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 21:03:47,143 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 2795 transitions. [2019-10-13 21:03:47,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-10-13 21:03:47,153 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:03:47,153 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:03:47,153 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:03:47,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:03:47,154 INFO L82 PathProgramCache]: Analyzing trace with hash 666500382, now seen corresponding path program 1 times [2019-10-13 21:03:47,154 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:03:47,154 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606445690] [2019-10-13 21:03:47,155 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:47,155 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:47,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:03:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:03:47,566 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2019-10-13 21:03:47,567 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606445690] [2019-10-13 21:03:47,568 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:03:47,568 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:03:47,568 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601270577] [2019-10-13 21:03:47,569 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:03:47,571 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:03:47,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:03:47,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:03:47,572 INFO L87 Difference]: Start difference. First operand 2080 states and 2795 transitions. Second operand 7 states. [2019-10-13 21:03:47,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:03:47,720 INFO L93 Difference]: Finished difference Result 2094 states and 2809 transitions. [2019-10-13 21:03:47,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:03:47,721 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 241 [2019-10-13 21:03:47,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:03:47,735 INFO L225 Difference]: With dead ends: 2094 [2019-10-13 21:03:47,735 INFO L226 Difference]: Without dead ends: 2091 [2019-10-13 21:03:47,737 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:03:47,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2091 states. [2019-10-13 21:03:47,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2091 to 2088. [2019-10-13 21:03:47,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2088 states. [2019-10-13 21:03:47,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 2803 transitions. [2019-10-13 21:03:47,896 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 2803 transitions. Word has length 241 [2019-10-13 21:03:47,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:03:47,897 INFO L462 AbstractCegarLoop]: Abstraction has 2088 states and 2803 transitions. [2019-10-13 21:03:47,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:03:47,897 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 2803 transitions. [2019-10-13 21:03:47,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2019-10-13 21:03:47,909 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:03:47,909 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:03:47,909 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:03:47,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:03:47,910 INFO L82 PathProgramCache]: Analyzing trace with hash 457310605, now seen corresponding path program 1 times [2019-10-13 21:03:47,910 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:03:47,910 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64086016] [2019-10-13 21:03:47,911 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:47,911 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:47,911 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:03:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:03:48,221 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2019-10-13 21:03:48,222 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64086016] [2019-10-13 21:03:48,222 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:03:48,223 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:03:48,223 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169811728] [2019-10-13 21:03:48,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:03:48,224 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:03:48,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:03:48,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:03:48,225 INFO L87 Difference]: Start difference. First operand 2088 states and 2803 transitions. Second operand 8 states. [2019-10-13 21:03:48,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:03:48,432 INFO L93 Difference]: Finished difference Result 2122 states and 2843 transitions. [2019-10-13 21:03:48,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:03:48,433 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 257 [2019-10-13 21:03:48,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:03:48,449 INFO L225 Difference]: With dead ends: 2122 [2019-10-13 21:03:48,449 INFO L226 Difference]: Without dead ends: 2119 [2019-10-13 21:03:48,451 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:03:48,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2019-10-13 21:03:48,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 2090. [2019-10-13 21:03:48,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2090 states. [2019-10-13 21:03:48,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 2806 transitions. [2019-10-13 21:03:48,550 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 2806 transitions. Word has length 257 [2019-10-13 21:03:48,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:03:48,551 INFO L462 AbstractCegarLoop]: Abstraction has 2090 states and 2806 transitions. [2019-10-13 21:03:48,551 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:03:48,551 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 2806 transitions. [2019-10-13 21:03:48,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2019-10-13 21:03:48,567 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:03:48,567 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:03:48,567 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:03:48,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:03:48,568 INFO L82 PathProgramCache]: Analyzing trace with hash 903680251, now seen corresponding path program 1 times [2019-10-13 21:03:48,568 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:03:48,568 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140529949] [2019-10-13 21:03:48,569 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:48,569 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:48,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:03:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:03:48,998 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2019-10-13 21:03:48,998 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140529949] [2019-10-13 21:03:48,999 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:03:49,000 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:03:49,007 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202405473] [2019-10-13 21:03:49,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:03:49,008 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:03:49,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:03:49,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:03:49,009 INFO L87 Difference]: Start difference. First operand 2090 states and 2806 transitions. Second operand 4 states. [2019-10-13 21:03:51,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:03:51,799 INFO L93 Difference]: Finished difference Result 4809 states and 6456 transitions. [2019-10-13 21:03:51,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:03:51,800 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 291 [2019-10-13 21:03:51,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:03:51,825 INFO L225 Difference]: With dead ends: 4809 [2019-10-13 21:03:51,826 INFO L226 Difference]: Without dead ends: 2769 [2019-10-13 21:03:51,837 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:03:51,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2019-10-13 21:03:52,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 2768. [2019-10-13 21:03:52,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2768 states. [2019-10-13 21:03:52,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2768 states to 2768 states and 3705 transitions. [2019-10-13 21:03:52,040 INFO L78 Accepts]: Start accepts. Automaton has 2768 states and 3705 transitions. Word has length 291 [2019-10-13 21:03:52,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:03:52,041 INFO L462 AbstractCegarLoop]: Abstraction has 2768 states and 3705 transitions. [2019-10-13 21:03:52,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:03:52,041 INFO L276 IsEmpty]: Start isEmpty. Operand 2768 states and 3705 transitions. [2019-10-13 21:03:52,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2019-10-13 21:03:52,062 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:03:52,062 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:03:52,062 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:03:52,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:03:52,063 INFO L82 PathProgramCache]: Analyzing trace with hash 592433216, now seen corresponding path program 1 times [2019-10-13 21:03:52,063 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:03:52,063 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152710081] [2019-10-13 21:03:52,064 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:52,064 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:52,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:03:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:03:52,425 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2019-10-13 21:03:52,426 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152710081] [2019-10-13 21:03:52,426 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:03:52,426 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:03:52,426 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551802297] [2019-10-13 21:03:52,428 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:03:52,428 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:03:52,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:03:52,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:03:52,429 INFO L87 Difference]: Start difference. First operand 2768 states and 3705 transitions. Second operand 3 states. [2019-10-13 21:03:52,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:03:52,566 INFO L93 Difference]: Finished difference Result 5489 states and 7402 transitions. [2019-10-13 21:03:52,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:03:52,567 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 293 [2019-10-13 21:03:52,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:03:52,586 INFO L225 Difference]: With dead ends: 5489 [2019-10-13 21:03:52,586 INFO L226 Difference]: Without dead ends: 2771 [2019-10-13 21:03:52,598 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:03:52,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2771 states. [2019-10-13 21:03:52,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2771 to 2768. [2019-10-13 21:03:52,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2768 states. [2019-10-13 21:03:52,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2768 states to 2768 states and 3696 transitions. [2019-10-13 21:03:52,752 INFO L78 Accepts]: Start accepts. Automaton has 2768 states and 3696 transitions. Word has length 293 [2019-10-13 21:03:52,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:03:52,754 INFO L462 AbstractCegarLoop]: Abstraction has 2768 states and 3696 transitions. [2019-10-13 21:03:52,754 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:03:52,754 INFO L276 IsEmpty]: Start isEmpty. Operand 2768 states and 3696 transitions. [2019-10-13 21:03:52,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2019-10-13 21:03:52,771 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:03:52,772 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:03:52,772 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:03:52,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:03:52,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1176691019, now seen corresponding path program 1 times [2019-10-13 21:03:52,773 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:03:52,773 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502139224] [2019-10-13 21:03:52,773 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:52,773 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:52,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:03:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:03:53,338 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2019-10-13 21:03:53,339 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502139224] [2019-10-13 21:03:53,339 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:03:53,340 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:03:53,340 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132162094] [2019-10-13 21:03:53,341 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:03:53,342 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:03:53,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:03:53,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:03:53,343 INFO L87 Difference]: Start difference. First operand 2768 states and 3696 transitions. Second operand 11 states. [2019-10-13 21:03:53,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:03:53,818 INFO L93 Difference]: Finished difference Result 4847 states and 6488 transitions. [2019-10-13 21:03:53,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-13 21:03:53,820 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 296 [2019-10-13 21:03:53,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:03:53,843 INFO L225 Difference]: With dead ends: 4847 [2019-10-13 21:03:53,843 INFO L226 Difference]: Without dead ends: 2793 [2019-10-13 21:03:53,856 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:03:53,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2793 states. [2019-10-13 21:03:54,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2793 to 2792. [2019-10-13 21:03:54,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2792 states. [2019-10-13 21:03:54,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 3729 transitions. [2019-10-13 21:03:54,130 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 3729 transitions. Word has length 296 [2019-10-13 21:03:54,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:03:54,131 INFO L462 AbstractCegarLoop]: Abstraction has 2792 states and 3729 transitions. [2019-10-13 21:03:54,131 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:03:54,131 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 3729 transitions. [2019-10-13 21:03:54,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2019-10-13 21:03:54,148 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:03:54,149 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:03:54,149 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:03:54,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:03:54,149 INFO L82 PathProgramCache]: Analyzing trace with hash -765487446, now seen corresponding path program 1 times [2019-10-13 21:03:54,150 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:03:54,150 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276601348] [2019-10-13 21:03:54,150 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:54,150 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:54,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:03:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:03:54,557 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2019-10-13 21:03:54,558 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276601348] [2019-10-13 21:03:54,558 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:03:54,559 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:03:54,559 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091147035] [2019-10-13 21:03:54,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:03:54,560 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:03:54,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:03:54,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:03:54,561 INFO L87 Difference]: Start difference. First operand 2792 states and 3729 transitions. Second operand 5 states. [2019-10-13 21:03:54,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:03:54,747 INFO L93 Difference]: Finished difference Result 4856 states and 6502 transitions. [2019-10-13 21:03:54,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:03:54,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 296 [2019-10-13 21:03:54,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:03:54,768 INFO L225 Difference]: With dead ends: 4856 [2019-10-13 21:03:54,768 INFO L226 Difference]: Without dead ends: 2800 [2019-10-13 21:03:54,779 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:03:54,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2800 states. [2019-10-13 21:03:54,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2800 to 2796. [2019-10-13 21:03:54,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2796 states. [2019-10-13 21:03:54,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2796 states to 2796 states and 3733 transitions. [2019-10-13 21:03:54,928 INFO L78 Accepts]: Start accepts. Automaton has 2796 states and 3733 transitions. Word has length 296 [2019-10-13 21:03:54,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:03:54,929 INFO L462 AbstractCegarLoop]: Abstraction has 2796 states and 3733 transitions. [2019-10-13 21:03:54,929 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:03:54,929 INFO L276 IsEmpty]: Start isEmpty. Operand 2796 states and 3733 transitions. [2019-10-13 21:03:54,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2019-10-13 21:03:54,948 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:03:54,948 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:03:54,948 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:03:54,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:03:54,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1523846816, now seen corresponding path program 1 times [2019-10-13 21:03:54,949 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:03:54,950 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771981616] [2019-10-13 21:03:54,950 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:54,950 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:54,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:03:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:03:55,207 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2019-10-13 21:03:55,207 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771981616] [2019-10-13 21:03:55,207 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:03:55,208 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:03:55,208 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872851137] [2019-10-13 21:03:55,209 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:03:55,209 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:03:55,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:03:55,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:03:55,210 INFO L87 Difference]: Start difference. First operand 2796 states and 3733 transitions. Second operand 3 states. [2019-10-13 21:03:55,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:03:55,417 INFO L93 Difference]: Finished difference Result 4859 states and 6507 transitions. [2019-10-13 21:03:55,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:03:55,419 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 323 [2019-10-13 21:03:55,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:03:55,443 INFO L225 Difference]: With dead ends: 4859 [2019-10-13 21:03:55,444 INFO L226 Difference]: Without dead ends: 2799 [2019-10-13 21:03:55,454 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:03:55,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2799 states. [2019-10-13 21:03:55,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2799 to 2797. [2019-10-13 21:03:55,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2797 states. [2019-10-13 21:03:55,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 3734 transitions. [2019-10-13 21:03:55,719 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 3734 transitions. Word has length 323 [2019-10-13 21:03:55,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:03:55,720 INFO L462 AbstractCegarLoop]: Abstraction has 2797 states and 3734 transitions. [2019-10-13 21:03:55,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:03:55,720 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 3734 transitions. [2019-10-13 21:03:55,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2019-10-13 21:03:55,740 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:03:55,740 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:03:55,740 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:03:55,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:03:55,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1895822625, now seen corresponding path program 1 times [2019-10-13 21:03:55,741 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:03:55,742 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946916550] [2019-10-13 21:03:55,742 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:55,742 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:55,742 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:03:55,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:03:56,033 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2019-10-13 21:03:56,034 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946916550] [2019-10-13 21:03:56,034 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:03:56,035 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:03:56,035 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249950528] [2019-10-13 21:03:56,036 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:03:56,036 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:03:56,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:03:56,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:03:56,041 INFO L87 Difference]: Start difference. First operand 2797 states and 3734 transitions. Second operand 3 states. [2019-10-13 21:03:56,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:03:56,166 INFO L93 Difference]: Finished difference Result 4849 states and 6494 transitions. [2019-10-13 21:03:56,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:03:56,167 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 325 [2019-10-13 21:03:56,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:03:56,194 INFO L225 Difference]: With dead ends: 4849 [2019-10-13 21:03:56,194 INFO L226 Difference]: Without dead ends: 2788 [2019-10-13 21:03:56,203 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:03:56,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2788 states. [2019-10-13 21:03:56,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2788 to 2783. [2019-10-13 21:03:56,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2783 states. [2019-10-13 21:03:56,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2783 states to 2783 states and 3715 transitions. [2019-10-13 21:03:56,348 INFO L78 Accepts]: Start accepts. Automaton has 2783 states and 3715 transitions. Word has length 325 [2019-10-13 21:03:56,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:03:56,349 INFO L462 AbstractCegarLoop]: Abstraction has 2783 states and 3715 transitions. [2019-10-13 21:03:56,349 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:03:56,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2783 states and 3715 transitions. [2019-10-13 21:03:56,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2019-10-13 21:03:56,372 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:03:56,373 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:03:56,373 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:03:56,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:03:56,374 INFO L82 PathProgramCache]: Analyzing trace with hash 823889841, now seen corresponding path program 1 times [2019-10-13 21:03:56,374 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:03:56,374 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405940834] [2019-10-13 21:03:56,374 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:56,375 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:03:56,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:03:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:03:56,832 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2019-10-13 21:03:56,833 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405940834] [2019-10-13 21:03:56,833 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:03:56,833 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:03:56,833 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823609261] [2019-10-13 21:03:56,834 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:03:56,834 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:03:56,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:03:56,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:03:56,835 INFO L87 Difference]: Start difference. First operand 2783 states and 3715 transitions. Second operand 6 states.