java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:53:51,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:53:51,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:53:51,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:53:51,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:53:51,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:53:51,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:53:51,730 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:53:51,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:53:51,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:53:51,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:53:51,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:53:51,739 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:53:51,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:53:51,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:53:51,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:53:51,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:53:51,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:53:51,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:53:51,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:53:51,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:53:51,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:53:51,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:53:51,764 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:53:51,766 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:53:51,766 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:53:51,767 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:53:51,769 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:53:51,770 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:53:51,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:53:51,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:53:51,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:53:51,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:53:51,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:53:51,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:53:51,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:53:51,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:53:51,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:53:51,777 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:53:51,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:53:51,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:53:51,779 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 22:53:51,810 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:53:51,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:53:51,814 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:53:51,814 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:53:51,814 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:53:51,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:53:51,814 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:53:51,815 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:53:51,815 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:53:51,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:53:51,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:53:51,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:53:51,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:53:51,817 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:53:51,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:53:51,817 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:53:51,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:53:51,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:53:51,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:53:51,819 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:53:51,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:53:51,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:53:51,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:53:51,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:53:51,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:53:51,823 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:53:51,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:53:51,823 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:53:51,824 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 22:53:52,076 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:53:52,088 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:53:52,092 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:53:52,093 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:53:52,093 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:53:52,094 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i [2019-10-13 22:53:52,151 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27ac7e3f1/e3cf52216b09454d91657a58bfda5489/FLAG5242ce3d3 [2019-10-13 22:53:52,880 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:53:52,882 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i [2019-10-13 22:53:52,935 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27ac7e3f1/e3cf52216b09454d91657a58bfda5489/FLAG5242ce3d3 [2019-10-13 22:53:52,971 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27ac7e3f1/e3cf52216b09454d91657a58bfda5489 [2019-10-13 22:53:52,982 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:53:52,984 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:53:52,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:53:52,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:53:52,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:53:52,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:53:52" (1/1) ... [2019-10-13 22:53:52,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d0b3c54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:52, skipping insertion in model container [2019-10-13 22:53:52,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:53:52" (1/1) ... [2019-10-13 22:53:53,001 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:53:53,146 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:53:54,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:53:54,647 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:53:55,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:53:55,412 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:53:55,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:55 WrapperNode [2019-10-13 22:53:55,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:53:55,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:53:55,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:53:55,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:53:55,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:55" (1/1) ... [2019-10-13 22:53:55,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:55" (1/1) ... [2019-10-13 22:53:55,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:55" (1/1) ... [2019-10-13 22:53:55,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:55" (1/1) ... [2019-10-13 22:53:55,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:55" (1/1) ... [2019-10-13 22:53:55,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:55" (1/1) ... [2019-10-13 22:53:55,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:55" (1/1) ... [2019-10-13 22:53:55,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:53:55,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:53:55,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:53:55,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:53:55,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:55" (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 22:53:55,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:53:55,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:53:55,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-13 22:53:55,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2019-10-13 22:53:55,764 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-13 22:53:55,766 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-10-13 22:53:55,767 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-10-13 22:53:55,767 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-10-13 22:53:55,767 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-13 22:53:55,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 22:53:55,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 22:53:55,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 22:53:55,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 22:53:55,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 22:53:55,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 22:53:55,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 22:53:55,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2019-10-13 22:53:55,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 22:53:55,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 22:53:55,775 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-13 22:53:55,775 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 22:53:55,776 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-13 22:53:55,776 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2019-10-13 22:53:55,776 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-13 22:53:55,776 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2019-10-13 22:53:55,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 22:53:55,776 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 22:53:55,777 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 22:53:55,777 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-13 22:53:55,777 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2019-10-13 22:53:55,777 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-10-13 22:53:55,777 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2019-10-13 22:53:55,777 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-10-13 22:53:55,778 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice [2019-10-13 22:53:55,778 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2019-10-13 22:53:55,778 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2019-10-13 22:53:55,778 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2019-10-13 22:53:55,778 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2019-10-13 22:53:55,778 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2019-10-13 22:53:55,778 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2019-10-13 22:53:55,779 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_queue_stopped [2019-10-13 22:53:55,779 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2019-10-13 22:53:55,779 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2019-10-13 22:53:55,779 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc_bufs [2019-10-13 22:53:55,779 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2019-10-13 22:53:55,779 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_realloc_bufs [2019-10-13 22:53:55,780 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_lock [2019-10-13 22:53:55,780 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2019-10-13 22:53:55,780 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2019-10-13 22:53:55,780 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_encaps [2019-10-13 22:53:55,780 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_write_wakeup [2019-10-13 22:53:55,780 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_tx_timeout [2019-10-13 22:53:55,780 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_xmit [2019-10-13 22:53:55,781 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_close [2019-10-13 22:53:55,781 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_open [2019-10-13 22:53:55,781 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_change_mtu [2019-10-13 22:53:55,781 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_get_stats64 [2019-10-13 22:53:55,781 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_init [2019-10-13 22:53:55,782 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_uninit [2019-10-13 22:53:55,783 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_netdev [2019-10-13 22:53:55,783 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_setup [2019-10-13 22:53:55,783 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_receive_buf [2019-10-13 22:53:55,783 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_sync [2019-10-13 22:53:55,783 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc [2019-10-13 22:53:55,784 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_open [2019-10-13 22:53:55,784 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2019-10-13 22:53:55,784 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_hangup [2019-10-13 22:53:55,784 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc [2019-10-13 22:53:55,784 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc [2019-10-13 22:53:55,784 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc6 [2019-10-13 22:53:55,784 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc6 [2019-10-13 22:53:55,785 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2019-10-13 22:53:55,785 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_compat_ioctl [2019-10-13 22:53:55,786 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2019-10-13 22:53:55,786 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_init [2019-10-13 22:53:55,786 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_exit [2019-10-13 22:53:55,787 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_outfill [2019-10-13 22:53:55,787 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_keepalive [2019-10-13 22:53:55,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_3 [2019-10-13 22:53:55,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_4 [2019-10-13 22:53:55,788 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2019-10-13 22:53:55,788 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2019-10-13 22:53:55,788 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2019-10-13 22:53:55,788 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_2 [2019-10-13 22:53:55,788 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2019-10-13 22:53:55,788 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2019-10-13 22:53:55,789 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2019-10-13 22:53:55,789 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2019-10-13 22:53:55,790 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:53:55,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_1 [2019-10-13 22:53:55,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_2 [2019-10-13 22:53:55,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_sl_alloc_bufs_3 [2019-10-13 22:53:55,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdevice_4 [2019-10-13 22:53:55,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_5 [2019-10-13 22:53:55,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_6 [2019-10-13 22:53:55,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_7 [2019-10-13 22:53:55,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_8 [2019-10-13 22:53:55,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_9 [2019-10-13 22:53:55,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_10 [2019-10-13 22:53:55,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_11 [2019-10-13 22:53:55,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_12 [2019-10-13 22:53:55,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_13 [2019-10-13 22:53:55,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_14 [2019-10-13 22:53:55,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_15 [2019-10-13 22:53:55,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_16 [2019-10-13 22:53:55,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_17 [2019-10-13 22:53:55,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_slip_open_18 [2019-10-13 22:53:55,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_callback_ret_val [2019-10-13 22:53:55,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2019-10-13 22:53:55,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 22:53:55,793 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-13 22:53:55,793 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-13 22:53:55,793 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2019-10-13 22:53:55,793 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-13 22:53:55,794 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2019-10-13 22:53:55,794 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2019-10-13 22:53:55,794 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2019-10-13 22:53:55,794 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-10-13 22:53:55,794 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2019-10-13 22:53:55,795 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2019-10-13 22:53:55,795 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-10-13 22:53:55,795 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2019-10-13 22:53:55,795 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2019-10-13 22:53:55,795 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2019-10-13 22:53:55,796 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-10-13 22:53:55,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 22:53:55,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 22:53:55,797 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-13 22:53:55,797 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-10-13 22:53:55,797 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2019-10-13 22:53:55,797 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2019-10-13 22:53:55,798 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2019-10-13 22:53:55,798 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 22:53:55,798 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdevice [2019-10-13 22:53:55,801 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2019-10-13 22:53:55,801 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2019-10-13 22:53:55,802 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-13 22:53:55,802 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_compress [2019-10-13 22:53:55,802 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2019-10-13 22:53:55,802 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_init [2019-10-13 22:53:55,803 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_remember [2019-10-13 22:53:55,803 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_uncompress [2019-10-13 22:53:55,803 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_chars_in_buffer [2019-10-13 22:53:55,803 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2019-10-13 22:53:55,810 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2019-10-13 22:53:55,811 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_mode_ioctl [2019-10-13 22:53:55,811 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_ldisc [2019-10-13 22:53:55,811 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_ldisc [2019-10-13 22:53:55,811 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-10-13 22:53:55,811 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice_queue [2019-10-13 22:53:55,812 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-13 22:53:55,812 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 22:53:55,812 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 22:53:55,812 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 22:53:55,812 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 22:53:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:53:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 22:53:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-13 22:53:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-10-13 22:53:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-10-13 22:53:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-10-13 22:53:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-13 22:53:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:53:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 22:53:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-13 22:53:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-13 22:53:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-13 22:53:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 22:53:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 22:53:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:53:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 22:53:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 22:53:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 22:53:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:53:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 22:53:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 22:53:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 22:53:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 22:53:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 22:53:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 22:53:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 22:53:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 22:53:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 22:53:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2019-10-13 22:53:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 22:53:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_callback_ret_val [2019-10-13 22:53:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-13 22:53:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-13 22:53:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-10-13 22:53:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-13 22:53:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 22:53:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-13 22:53:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2019-10-13 22:53:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-13 22:53:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2019-10-13 22:53:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 22:53:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-13 22:53:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2019-10-13 22:53:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-13 22:53:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2019-10-13 22:53:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2019-10-13 22:53:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2019-10-13 22:53:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_2 [2019-10-13 22:53:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_8 [2019-10-13 22:53:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_10 [2019-10-13 22:53:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_12 [2019-10-13 22:53:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_14 [2019-10-13 22:53:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_16 [2019-10-13 22:53:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-10-13 22:53:55,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_7 [2019-10-13 22:53:55,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_9 [2019-10-13 22:53:55,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_11 [2019-10-13 22:53:55,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_13 [2019-10-13 22:53:55,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_15 [2019-10-13 22:53:55,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_17 [2019-10-13 22:53:55,820 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2019-10-13 22:53:55,820 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-10-13 22:53:55,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_1 [2019-10-13 22:53:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_5 [2019-10-13 22:53:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_6 [2019-10-13 22:53:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 22:53:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 22:53:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 22:53:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 22:53:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_3 [2019-10-13 22:53:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_4 [2019-10-13 22:53:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2019-10-13 22:53:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2019-10-13 22:53:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2019-10-13 22:53:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_2 [2019-10-13 22:53:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2019-10-13 22:53:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2019-10-13 22:53:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2019-10-13 22:53:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2019-10-13 22:53:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-13 22:53:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-13 22:53:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-10-13 22:53:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure tty_chars_in_buffer [2019-10-13 22:53:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2019-10-13 22:53:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure tty_mode_ioctl [2019-10-13 22:53:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2019-10-13 22:53:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_ldisc [2019-10-13 22:53:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_ldisc [2019-10-13 22:53:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2019-10-13 22:53:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-13 22:53:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2019-10-13 22:53:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 22:53:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:53:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2019-10-13 22:53:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-10-13 22:53:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2019-10-13 22:53:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-10-13 22:53:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2019-10-13 22:53:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdevice [2019-10-13 22:53:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdevice_4 [2019-10-13 22:53:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice_queue [2019-10-13 22:53:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice [2019-10-13 22:53:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-10-13 22:53:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2019-10-13 22:53:55,826 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2019-10-13 22:53:55,827 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2019-10-13 22:53:55,830 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2019-10-13 22:53:55,830 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2019-10-13 22:53:55,831 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2019-10-13 22:53:55,831 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2019-10-13 22:53:55,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:53:55,831 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2019-10-13 22:53:55,831 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_queue_stopped [2019-10-13 22:53:55,831 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2019-10-13 22:53:55,831 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2019-10-13 22:53:55,831 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2019-10-13 22:53:55,832 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2019-10-13 22:53:55,834 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2019-10-13 22:53:55,834 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-10-13 22:53:55,834 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2019-10-13 22:53:55,834 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2019-10-13 22:53:55,834 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_init [2019-10-13 22:53:55,834 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2019-10-13 22:53:55,835 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_compress [2019-10-13 22:53:55,835 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_uncompress [2019-10-13 22:53:55,835 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_remember [2019-10-13 22:53:55,835 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc [2019-10-13 22:53:55,835 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc [2019-10-13 22:53:55,835 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc6 [2019-10-13 22:53:55,835 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc6 [2019-10-13 22:53:55,835 INFO L130 BoogieDeclarations]: Found specification of procedure sl_keepalive [2019-10-13 22:53:55,835 INFO L130 BoogieDeclarations]: Found specification of procedure sl_outfill [2019-10-13 22:53:55,836 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2019-10-13 22:53:55,836 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc_bufs [2019-10-13 22:53:55,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_sl_alloc_bufs_3 [2019-10-13 22:53:55,836 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2019-10-13 22:53:55,836 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 22:53:55,836 INFO L130 BoogieDeclarations]: Found specification of procedure sl_realloc_bufs [2019-10-13 22:53:55,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 22:53:55,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 22:53:55,836 INFO L130 BoogieDeclarations]: Found specification of procedure sl_lock [2019-10-13 22:53:55,837 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2019-10-13 22:53:55,837 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2019-10-13 22:53:55,837 INFO L130 BoogieDeclarations]: Found specification of procedure sl_encaps [2019-10-13 22:53:55,837 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-13 22:53:55,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:53:55,837 INFO L130 BoogieDeclarations]: Found specification of procedure slip_write_wakeup [2019-10-13 22:53:55,837 INFO L130 BoogieDeclarations]: Found specification of procedure sl_tx_timeout [2019-10-13 22:53:55,837 INFO L130 BoogieDeclarations]: Found specification of procedure sl_xmit [2019-10-13 22:53:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure sl_close [2019-10-13 22:53:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure sl_open [2019-10-13 22:53:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure sl_change_mtu [2019-10-13 22:53:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure sl_get_stats64 [2019-10-13 22:53:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure sl_init [2019-10-13 22:53:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure sl_uninit [2019-10-13 22:53:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_netdev [2019-10-13 22:53:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure sl_setup [2019-10-13 22:53:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure slip_receive_buf [2019-10-13 22:53:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure sl_sync [2019-10-13 22:53:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc [2019-10-13 22:53:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure slip_open [2019-10-13 22:53:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_slip_open_18 [2019-10-13 22:53:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2019-10-13 22:53:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure slip_hangup [2019-10-13 22:53:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2019-10-13 22:53:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure slip_compat_ioctl [2019-10-13 22:53:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure slip_init [2019-10-13 22:53:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure slip_exit [2019-10-13 22:53:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 22:53:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 22:53:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2019-10-13 22:53:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:53:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 22:53:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 22:53:55,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:53:55,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 22:53:55,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 22:53:55,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:53:55,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 22:53:55,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 22:53:55,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 22:53:55,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 22:53:56,918 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 22:54:05,484 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:54:05,485 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 22:54:05,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:54:05 BoogieIcfgContainer [2019-10-13 22:54:05,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:54:05,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:54:05,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:54:05,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:54:05,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:53:52" (1/3) ... [2019-10-13 22:54:05,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7458fd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:54:05, skipping insertion in model container [2019-10-13 22:54:05,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:55" (2/3) ... [2019-10-13 22:54:05,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7458fd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:54:05, skipping insertion in model container [2019-10-13 22:54:05,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:54:05" (3/3) ... [2019-10-13 22:54:05,497 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i [2019-10-13 22:54:05,511 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:54:05,531 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:54:05,548 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:54:05,613 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:54:05,614 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:54:05,614 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:54:05,614 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:54:05,614 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:54:05,614 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:54:05,615 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:54:05,615 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:54:05,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states. [2019-10-13 22:54:05,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-10-13 22:54:05,728 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:05,730 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:54:05,734 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:05,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:05,742 INFO L82 PathProgramCache]: Analyzing trace with hash -230181454, now seen corresponding path program 1 times [2019-10-13 22:54:05,756 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:05,757 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689798610] [2019-10-13 22:54:05,758 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:05,758 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:05,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:06,470 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2019-10-13 22:54:06,471 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689798610] [2019-10-13 22:54:06,472 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:54:06,473 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:54:06,473 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673729978] [2019-10-13 22:54:06,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:54:06,480 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:54:06,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:54:06,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:54:06,507 INFO L87 Difference]: Start difference. First operand 1135 states. Second operand 3 states. [2019-10-13 22:54:06,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:54:06,782 INFO L93 Difference]: Finished difference Result 2842 states and 3775 transitions. [2019-10-13 22:54:06,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:54:06,785 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2019-10-13 22:54:06,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:54:06,834 INFO L225 Difference]: With dead ends: 2842 [2019-10-13 22:54:06,834 INFO L226 Difference]: Without dead ends: 1642 [2019-10-13 22:54:06,853 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 22:54:06,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2019-10-13 22:54:07,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1642. [2019-10-13 22:54:07,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1642 states. [2019-10-13 22:54:07,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2163 transitions. [2019-10-13 22:54:07,110 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2163 transitions. Word has length 80 [2019-10-13 22:54:07,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:54:07,111 INFO L462 AbstractCegarLoop]: Abstraction has 1642 states and 2163 transitions. [2019-10-13 22:54:07,111 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:54:07,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2163 transitions. [2019-10-13 22:54:07,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-13 22:54:07,124 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:07,124 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:54:07,125 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:07,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:07,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1995831814, now seen corresponding path program 1 times [2019-10-13 22:54:07,126 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:07,126 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470459731] [2019-10-13 22:54:07,127 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:07,127 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:07,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:07,659 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2019-10-13 22:54:07,659 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470459731] [2019-10-13 22:54:07,660 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:54:07,660 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 22:54:07,660 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155995584] [2019-10-13 22:54:07,664 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 22:54:07,664 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:54:07,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 22:54:07,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 22:54:07,665 INFO L87 Difference]: Start difference. First operand 1642 states and 2163 transitions. Second operand 10 states. [2019-10-13 22:54:07,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:54:07,838 INFO L93 Difference]: Finished difference Result 3263 states and 4298 transitions. [2019-10-13 22:54:07,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 22:54:07,839 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 131 [2019-10-13 22:54:07,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:54:07,849 INFO L225 Difference]: With dead ends: 3263 [2019-10-13 22:54:07,849 INFO L226 Difference]: Without dead ends: 1644 [2019-10-13 22:54:07,855 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 22:54:07,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1644 states. [2019-10-13 22:54:07,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1644 to 1642. [2019-10-13 22:54:07,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1642 states. [2019-10-13 22:54:07,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2161 transitions. [2019-10-13 22:54:07,918 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2161 transitions. Word has length 131 [2019-10-13 22:54:07,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:54:07,919 INFO L462 AbstractCegarLoop]: Abstraction has 1642 states and 2161 transitions. [2019-10-13 22:54:07,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 22:54:07,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2161 transitions. [2019-10-13 22:54:07,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-10-13 22:54:07,925 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:07,925 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:54:07,925 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:07,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:07,925 INFO L82 PathProgramCache]: Analyzing trace with hash -917716319, now seen corresponding path program 1 times [2019-10-13 22:54:07,926 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:07,926 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221046690] [2019-10-13 22:54:07,926 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:07,926 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:07,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:07,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:08,110 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2019-10-13 22:54:08,111 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221046690] [2019-10-13 22:54:08,111 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:54:08,111 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 22:54:08,111 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106087201] [2019-10-13 22:54:08,112 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 22:54:08,112 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:54:08,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 22:54:08,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 22:54:08,113 INFO L87 Difference]: Start difference. First operand 1642 states and 2161 transitions. Second operand 7 states. [2019-10-13 22:54:08,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:54:08,232 INFO L93 Difference]: Finished difference Result 1655 states and 2174 transitions. [2019-10-13 22:54:08,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 22:54:08,233 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 137 [2019-10-13 22:54:08,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:54:08,243 INFO L225 Difference]: With dead ends: 1655 [2019-10-13 22:54:08,244 INFO L226 Difference]: Without dead ends: 1652 [2019-10-13 22:54:08,245 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 22:54:08,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1652 states. [2019-10-13 22:54:08,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1652 to 1650. [2019-10-13 22:54:08,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1650 states. [2019-10-13 22:54:08,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1650 states to 1650 states and 2169 transitions. [2019-10-13 22:54:08,317 INFO L78 Accepts]: Start accepts. Automaton has 1650 states and 2169 transitions. Word has length 137 [2019-10-13 22:54:08,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:54:08,319 INFO L462 AbstractCegarLoop]: Abstraction has 1650 states and 2169 transitions. [2019-10-13 22:54:08,319 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 22:54:08,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1650 states and 2169 transitions. [2019-10-13 22:54:08,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-13 22:54:08,328 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:08,328 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:54:08,329 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:08,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:08,329 INFO L82 PathProgramCache]: Analyzing trace with hash 2125193579, now seen corresponding path program 1 times [2019-10-13 22:54:08,329 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:08,329 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280385894] [2019-10-13 22:54:08,329 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:08,330 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:08,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:08,701 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2019-10-13 22:54:08,701 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280385894] [2019-10-13 22:54:08,701 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:54:08,701 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 22:54:08,702 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310541560] [2019-10-13 22:54:08,703 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 22:54:08,704 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:54:08,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 22:54:08,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 22:54:08,704 INFO L87 Difference]: Start difference. First operand 1650 states and 2169 transitions. Second operand 8 states. [2019-10-13 22:54:08,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:54:08,868 INFO L93 Difference]: Finished difference Result 1683 states and 2208 transitions. [2019-10-13 22:54:08,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 22:54:08,868 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 152 [2019-10-13 22:54:08,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:54:08,882 INFO L225 Difference]: With dead ends: 1683 [2019-10-13 22:54:08,882 INFO L226 Difference]: Without dead ends: 1680 [2019-10-13 22:54:08,883 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 22:54:08,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2019-10-13 22:54:08,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1652. [2019-10-13 22:54:08,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1652 states. [2019-10-13 22:54:08,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 2172 transitions. [2019-10-13 22:54:08,950 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 2172 transitions. Word has length 152 [2019-10-13 22:54:08,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:54:08,951 INFO L462 AbstractCegarLoop]: Abstraction has 1652 states and 2172 transitions. [2019-10-13 22:54:08,951 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 22:54:08,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 2172 transitions. [2019-10-13 22:54:08,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-13 22:54:08,960 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:08,960 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 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] [2019-10-13 22:54:08,960 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:08,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:08,961 INFO L82 PathProgramCache]: Analyzing trace with hash 987322669, now seen corresponding path program 1 times [2019-10-13 22:54:08,961 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:08,961 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240192337] [2019-10-13 22:54:08,961 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:08,961 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:08,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:09,219 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2019-10-13 22:54:09,219 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240192337] [2019-10-13 22:54:09,220 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:54:09,220 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 22:54:09,220 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638560103] [2019-10-13 22:54:09,221 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 22:54:09,221 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:54:09,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 22:54:09,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 22:54:09,221 INFO L87 Difference]: Start difference. First operand 1652 states and 2172 transitions. Second operand 4 states. [2019-10-13 22:54:13,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:54:13,223 INFO L93 Difference]: Finished difference Result 3819 states and 5021 transitions. [2019-10-13 22:54:13,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 22:54:13,224 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 180 [2019-10-13 22:54:13,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:54:13,238 INFO L225 Difference]: With dead ends: 3819 [2019-10-13 22:54:13,239 INFO L226 Difference]: Without dead ends: 2198 [2019-10-13 22:54:13,246 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 22:54:13,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2198 states. [2019-10-13 22:54:13,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2198 to 2197. [2019-10-13 22:54:13,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2197 states. [2019-10-13 22:54:13,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2197 states to 2197 states and 2881 transitions. [2019-10-13 22:54:13,344 INFO L78 Accepts]: Start accepts. Automaton has 2197 states and 2881 transitions. Word has length 180 [2019-10-13 22:54:13,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:54:13,344 INFO L462 AbstractCegarLoop]: Abstraction has 2197 states and 2881 transitions. [2019-10-13 22:54:13,345 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 22:54:13,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2197 states and 2881 transitions. [2019-10-13 22:54:13,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-13 22:54:13,357 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:13,357 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 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] [2019-10-13 22:54:13,358 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:13,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:13,358 INFO L82 PathProgramCache]: Analyzing trace with hash 655762632, now seen corresponding path program 1 times [2019-10-13 22:54:13,358 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:13,358 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052656748] [2019-10-13 22:54:13,359 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:13,359 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:13,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:13,643 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2019-10-13 22:54:13,644 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052656748] [2019-10-13 22:54:13,644 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:54:13,645 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 22:54:13,649 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811499574] [2019-10-13 22:54:13,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:54:13,650 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:54:13,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:54:13,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:54:13,651 INFO L87 Difference]: Start difference. First operand 2197 states and 2881 transitions. Second operand 5 states. [2019-10-13 22:54:13,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:54:13,900 INFO L93 Difference]: Finished difference Result 3826 states and 5026 transitions. [2019-10-13 22:54:13,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 22:54:13,901 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 182 [2019-10-13 22:54:13,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:54:13,915 INFO L225 Difference]: With dead ends: 3826 [2019-10-13 22:54:13,915 INFO L226 Difference]: Without dead ends: 2205 [2019-10-13 22:54:13,921 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 22:54:13,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2205 states. [2019-10-13 22:54:14,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 2201. [2019-10-13 22:54:14,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2201 states. [2019-10-13 22:54:14,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 2885 transitions. [2019-10-13 22:54:14,018 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 2885 transitions. Word has length 182 [2019-10-13 22:54:14,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:54:14,019 INFO L462 AbstractCegarLoop]: Abstraction has 2201 states and 2885 transitions. [2019-10-13 22:54:14,019 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 22:54:14,019 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 2885 transitions. [2019-10-13 22:54:14,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-13 22:54:14,031 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:14,031 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:54:14,031 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:14,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:14,032 INFO L82 PathProgramCache]: Analyzing trace with hash -255058416, now seen corresponding path program 1 times [2019-10-13 22:54:14,032 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:14,032 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308048568] [2019-10-13 22:54:14,032 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:14,032 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:14,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:14,172 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2019-10-13 22:54:14,172 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308048568] [2019-10-13 22:54:14,173 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:54:14,173 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:54:14,173 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183647555] [2019-10-13 22:54:14,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:54:14,174 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:54:14,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:54:14,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:54:14,174 INFO L87 Difference]: Start difference. First operand 2201 states and 2885 transitions. Second operand 3 states. [2019-10-13 22:54:14,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:54:14,331 INFO L93 Difference]: Finished difference Result 3829 states and 5031 transitions. [2019-10-13 22:54:14,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:54:14,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2019-10-13 22:54:14,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:54:14,345 INFO L225 Difference]: With dead ends: 3829 [2019-10-13 22:54:14,345 INFO L226 Difference]: Without dead ends: 2204 [2019-10-13 22:54:14,351 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 22:54:14,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2204 states. [2019-10-13 22:54:14,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2204 to 2202. [2019-10-13 22:54:14,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2202 states. [2019-10-13 22:54:14,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 2886 transitions. [2019-10-13 22:54:14,451 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 2886 transitions. Word has length 204 [2019-10-13 22:54:14,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:54:14,452 INFO L462 AbstractCegarLoop]: Abstraction has 2202 states and 2886 transitions. [2019-10-13 22:54:14,452 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:54:14,452 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 2886 transitions. [2019-10-13 22:54:14,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-13 22:54:14,466 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:14,466 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:54:14,467 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:14,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:14,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1845654823, now seen corresponding path program 1 times [2019-10-13 22:54:14,467 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:14,468 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82091845] [2019-10-13 22:54:14,468 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:14,468 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:14,468 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:14,614 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2019-10-13 22:54:14,615 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82091845] [2019-10-13 22:54:14,615 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:54:14,615 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:54:14,615 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433050757] [2019-10-13 22:54:14,616 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:54:14,616 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:54:14,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:54:14,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:54:14,616 INFO L87 Difference]: Start difference. First operand 2202 states and 2886 transitions. Second operand 3 states. [2019-10-13 22:54:14,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:54:14,723 INFO L93 Difference]: Finished difference Result 3819 states and 5018 transitions. [2019-10-13 22:54:14,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:54:14,725 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2019-10-13 22:54:14,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:54:14,738 INFO L225 Difference]: With dead ends: 3819 [2019-10-13 22:54:14,738 INFO L226 Difference]: Without dead ends: 2193 [2019-10-13 22:54:14,744 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 22:54:14,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2019-10-13 22:54:14,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 2189. [2019-10-13 22:54:14,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2189 states. [2019-10-13 22:54:14,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2189 states to 2189 states and 2868 transitions. [2019-10-13 22:54:14,914 INFO L78 Accepts]: Start accepts. Automaton has 2189 states and 2868 transitions. Word has length 205 [2019-10-13 22:54:14,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:54:14,915 INFO L462 AbstractCegarLoop]: Abstraction has 2189 states and 2868 transitions. [2019-10-13 22:54:14,915 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:54:14,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2189 states and 2868 transitions. [2019-10-13 22:54:14,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2019-10-13 22:54:14,926 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:14,926 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:54:14,927 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:14,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:14,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1446380526, now seen corresponding path program 1 times [2019-10-13 22:54:14,927 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:14,928 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138558842] [2019-10-13 22:54:14,928 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:14,928 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:14,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:15,232 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2019-10-13 22:54:15,233 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138558842] [2019-10-13 22:54:15,233 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:54:15,233 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 22:54:15,233 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611552634] [2019-10-13 22:54:15,234 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 22:54:15,234 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:54:15,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 22:54:15,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 22:54:15,235 INFO L87 Difference]: Start difference. First operand 2189 states and 2868 transitions. Second operand 7 states. [2019-10-13 22:54:23,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:54:23,709 INFO L93 Difference]: Finished difference Result 3813 states and 5009 transitions. [2019-10-13 22:54:23,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 22:54:23,710 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 214 [2019-10-13 22:54:23,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:54:23,724 INFO L225 Difference]: With dead ends: 3813 [2019-10-13 22:54:23,724 INFO L226 Difference]: Without dead ends: 2200 [2019-10-13 22:54:23,730 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-13 22:54:23,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2200 states. [2019-10-13 22:54:23,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2200 to 2190. [2019-10-13 22:54:23,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2190 states. [2019-10-13 22:54:23,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2190 states to 2190 states and 2869 transitions. [2019-10-13 22:54:23,821 INFO L78 Accepts]: Start accepts. Automaton has 2190 states and 2869 transitions. Word has length 214 [2019-10-13 22:54:23,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:54:23,821 INFO L462 AbstractCegarLoop]: Abstraction has 2190 states and 2869 transitions. [2019-10-13 22:54:23,822 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 22:54:23,822 INFO L276 IsEmpty]: Start isEmpty. Operand 2190 states and 2869 transitions. [2019-10-13 22:54:23,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2019-10-13 22:54:23,833 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:23,833 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:54:23,833 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:23,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:23,834 INFO L82 PathProgramCache]: Analyzing trace with hash 840187624, now seen corresponding path program 1 times [2019-10-13 22:54:23,834 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:23,834 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163364692] [2019-10-13 22:54:23,834 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:23,834 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:23,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY