java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/list-simple/sll2n_update_all_reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:05:06,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:05:06,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:05:06,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:05:06,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:05:06,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:05:06,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:05:06,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:05:06,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:05:06,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:05:06,700 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:05:06,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:05:06,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:05:06,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:05:06,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:05:06,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:05:06,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:05:06,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:05:06,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:05:06,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:05:06,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:05:06,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:05:06,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:05:06,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:05:06,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:05:06,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:05:06,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:05:06,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:05:06,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:05:06,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:05:06,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:05:06,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:05:06,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:05:06,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:05:06,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:05:06,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:05:06,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:05:06,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:05:06,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:05:06,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:05:06,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:05:06,739 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:05:06,753 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:05:06,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:05:06,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:05:06,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:05:06,755 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:05:06,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:05:06,755 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:05:06,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:05:06,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:05:06,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:05:06,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:05:06,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:05:06,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:05:06,756 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:05:06,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:05:06,757 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:05:06,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:05:06,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:05:06,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:05:06,758 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:05:06,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:05:06,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:05:06,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:05:06,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:05:06,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:05:06,759 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:05:06,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:05:06,759 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:05:06,760 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:05:07,045 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:05:07,060 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:05:07,064 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:05:07,065 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:05:07,066 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:05:07,067 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2n_update_all_reverse.i [2019-10-13 21:05:07,141 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66f1e024e/28ffb09b99db4ab19cb8a43bb7b750f6/FLAG6a6f85536 [2019-10-13 21:05:07,704 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:05:07,705 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2n_update_all_reverse.i [2019-10-13 21:05:07,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66f1e024e/28ffb09b99db4ab19cb8a43bb7b750f6/FLAG6a6f85536 [2019-10-13 21:05:07,993 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66f1e024e/28ffb09b99db4ab19cb8a43bb7b750f6 [2019-10-13 21:05:08,004 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:05:08,005 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:05:08,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:05:08,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:05:08,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:05:08,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:05:07" (1/1) ... [2019-10-13 21:05:08,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48406581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:08, skipping insertion in model container [2019-10-13 21:05:08,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:05:07" (1/1) ... [2019-10-13 21:05:08,023 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:05:08,066 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:05:08,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:05:08,505 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:05:08,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:05:08,618 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:05:08,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:08 WrapperNode [2019-10-13 21:05:08,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:05:08,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:05:08,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:05:08,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:05:08,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:08" (1/1) ... [2019-10-13 21:05:08,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:08" (1/1) ... [2019-10-13 21:05:08,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:08" (1/1) ... [2019-10-13 21:05:08,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:08" (1/1) ... [2019-10-13 21:05:08,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:08" (1/1) ... [2019-10-13 21:05:08,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:08" (1/1) ... [2019-10-13 21:05:08,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:08" (1/1) ... [2019-10-13 21:05:08,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:05:08,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:05:08,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:05:08,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:05:08,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:05:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:05:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:05:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-13 21:05:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-13 21:05:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-13 21:05:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-13 21:05:08,766 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2019-10-13 21:05:08,766 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2019-10-13 21:05:08,766 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_get_data_at [2019-10-13 21:05:08,766 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_update_at [2019-10-13 21:05:08,766 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:05:08,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:05:08,767 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-13 21:05:08,767 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-13 21:05:08,767 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-13 21:05:08,767 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-13 21:05:08,768 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-13 21:05:08,768 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-13 21:05:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-13 21:05:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-13 21:05:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-13 21:05:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-13 21:05:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-13 21:05:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-13 21:05:08,770 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-13 21:05:08,770 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-13 21:05:08,770 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-13 21:05:08,770 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-13 21:05:08,770 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-13 21:05:08,770 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-13 21:05:08,771 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-13 21:05:08,771 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-13 21:05:08,771 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-13 21:05:08,771 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-13 21:05:08,771 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-13 21:05:08,771 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-13 21:05:08,772 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-13 21:05:08,772 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-13 21:05:08,772 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-13 21:05:08,772 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-13 21:05:08,772 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-13 21:05:08,772 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-13 21:05:08,773 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-13 21:05:08,773 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-13 21:05:08,773 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-13 21:05:08,773 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-13 21:05:08,773 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-13 21:05:08,773 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-13 21:05:08,773 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-13 21:05:08,774 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-13 21:05:08,774 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-13 21:05:08,774 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-13 21:05:08,774 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-13 21:05:08,774 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-13 21:05:08,774 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-13 21:05:08,774 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-13 21:05:08,775 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-13 21:05:08,775 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-13 21:05:08,775 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-13 21:05:08,775 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-13 21:05:08,775 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-13 21:05:08,775 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-13 21:05:08,776 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-13 21:05:08,776 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-13 21:05:08,776 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:05:08,776 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 21:05:08,776 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-13 21:05:08,776 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:05:08,777 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-13 21:05:08,777 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-13 21:05:08,777 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-13 21:05:08,777 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-13 21:05:08,777 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-13 21:05:08,777 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-13 21:05:08,778 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-13 21:05:08,778 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-13 21:05:08,778 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-13 21:05:08,778 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 21:05:08,778 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-13 21:05:08,778 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-13 21:05:08,779 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-13 21:05:08,779 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-13 21:05:08,779 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-13 21:05:08,779 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-13 21:05:08,779 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-13 21:05:08,779 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-13 21:05:08,780 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-13 21:05:08,780 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-13 21:05:08,780 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-13 21:05:08,780 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-13 21:05:08,780 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-13 21:05:08,780 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-13 21:05:08,780 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-13 21:05:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-13 21:05:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-13 21:05:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-13 21:05:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-13 21:05:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-13 21:05:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-13 21:05:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-13 21:05:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-13 21:05:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-13 21:05:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-13 21:05:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-13 21:05:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-13 21:05:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-13 21:05:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-13 21:05:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-13 21:05:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-13 21:05:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-13 21:05:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-13 21:05:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-13 21:05:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-13 21:05:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-13 21:05:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-13 21:05:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-13 21:05:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-13 21:05:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-13 21:05:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-13 21:05:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:05:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:05:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:05:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2019-10-13 21:05:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2019-10-13 21:05:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:05:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:05:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure sll_get_data_at [2019-10-13 21:05:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:05:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure sll_update_at [2019-10-13 21:05:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:05:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:05:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:05:09,234 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-13 21:05:09,350 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:05:09,350 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-13 21:05:09,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:05:09 BoogieIcfgContainer [2019-10-13 21:05:09,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:05:09,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:05:09,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:05:09,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:05:09,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:05:07" (1/3) ... [2019-10-13 21:05:09,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5623f71b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:05:09, skipping insertion in model container [2019-10-13 21:05:09,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:08" (2/3) ... [2019-10-13 21:05:09,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5623f71b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:05:09, skipping insertion in model container [2019-10-13 21:05:09,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:05:09" (3/3) ... [2019-10-13 21:05:09,358 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2n_update_all_reverse.i [2019-10-13 21:05:09,367 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:05:09,375 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:05:09,386 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:05:09,409 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:05:09,410 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:05:09,410 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:05:09,410 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:05:09,410 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:05:09,411 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:05:09,411 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:05:09,411 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:05:09,429 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2019-10-13 21:05:09,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-13 21:05:09,436 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:05:09,437 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:05:09,438 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:05:09,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:05:09,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1559034541, now seen corresponding path program 1 times [2019-10-13 21:05:09,451 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:05:09,452 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455916033] [2019-10-13 21:05:09,452 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:09,452 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:09,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:05:09,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:05:09,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:05:09,608 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455916033] [2019-10-13 21:05:09,610 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:05:09,611 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:05:09,611 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133816424] [2019-10-13 21:05:09,616 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:05:09,617 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:05:09,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:05:09,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:05:09,635 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2019-10-13 21:05:09,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:05:09,664 INFO L93 Difference]: Finished difference Result 90 states and 116 transitions. [2019-10-13 21:05:09,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:05:09,666 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2019-10-13 21:05:09,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:05:09,677 INFO L225 Difference]: With dead ends: 90 [2019-10-13 21:05:09,677 INFO L226 Difference]: Without dead ends: 42 [2019-10-13 21:05:09,681 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:05:09,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-10-13 21:05:09,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-10-13 21:05:09,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-10-13 21:05:09,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2019-10-13 21:05:09,746 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 25 [2019-10-13 21:05:09,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:05:09,747 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2019-10-13 21:05:09,747 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:05:09,748 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2019-10-13 21:05:09,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-13 21:05:09,751 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:05:09,752 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:05:09,753 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:05:09,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:05:09,755 INFO L82 PathProgramCache]: Analyzing trace with hash -404189262, now seen corresponding path program 1 times [2019-10-13 21:05:09,756 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:05:09,756 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384735456] [2019-10-13 21:05:09,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:09,757 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:09,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:05:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:05:09,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:05:09,903 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384735456] [2019-10-13 21:05:09,905 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:05:09,905 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:05:09,924 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855414119] [2019-10-13 21:05:09,926 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:05:09,926 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:05:09,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:05:09,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:05:09,927 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 4 states. [2019-10-13 21:05:10,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:05:10,008 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2019-10-13 21:05:10,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:05:10,009 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2019-10-13 21:05:10,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:05:10,013 INFO L225 Difference]: With dead ends: 65 [2019-10-13 21:05:10,013 INFO L226 Difference]: Without dead ends: 52 [2019-10-13 21:05:10,014 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:05:10,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-10-13 21:05:10,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 43. [2019-10-13 21:05:10,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-13 21:05:10,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2019-10-13 21:05:10,046 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 25 [2019-10-13 21:05:10,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:05:10,046 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2019-10-13 21:05:10,047 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:05:10,047 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2019-10-13 21:05:10,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-13 21:05:10,050 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:05:10,050 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:05:10,051 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:05:10,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:05:10,051 INFO L82 PathProgramCache]: Analyzing trace with hash 856367100, now seen corresponding path program 1 times [2019-10-13 21:05:10,052 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:05:10,052 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208948010] [2019-10-13 21:05:10,052 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:10,052 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:10,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:05:10,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:05:10,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:05:10,345 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208948010] [2019-10-13 21:05:10,346 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776562290] [2019-10-13 21:05:10,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:05:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:05:10,491 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 21:05:10,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:05:10,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:05:10,546 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:05:10,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:05:10,664 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 21:05:10,665 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [13] total 15 [2019-10-13 21:05:10,665 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803798853] [2019-10-13 21:05:10,666 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:05:10,666 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:05:10,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:05:10,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2019-10-13 21:05:10,667 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 7 states. [2019-10-13 21:05:10,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:05:10,747 INFO L93 Difference]: Finished difference Result 73 states and 82 transitions. [2019-10-13 21:05:10,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:05:10,748 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-10-13 21:05:10,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:05:10,749 INFO L225 Difference]: With dead ends: 73 [2019-10-13 21:05:10,749 INFO L226 Difference]: Without dead ends: 47 [2019-10-13 21:05:10,750 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2019-10-13 21:05:10,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-13 21:05:10,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2019-10-13 21:05:10,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-10-13 21:05:10,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2019-10-13 21:05:10,757 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 33 [2019-10-13 21:05:10,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:05:10,758 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2019-10-13 21:05:10,758 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:05:10,758 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2019-10-13 21:05:10,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-13 21:05:10,759 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:05:10,760 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:05:10,964 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:05:10,964 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:05:10,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:05:10,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1586404999, now seen corresponding path program 1 times [2019-10-13 21:05:10,965 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:05:10,965 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63787042] [2019-10-13 21:05:10,965 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:10,965 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:10,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:05:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:05:11,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:05:11,201 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63787042] [2019-10-13 21:05:11,202 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502440908] [2019-10-13 21:05:11,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:05:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:05:11,376 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-13 21:05:11,381 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:05:11,405 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:05:11,406 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:05:11,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:05:11,529 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1253469556] [2019-10-13 21:05:11,535 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 43 [2019-10-13 21:05:11,576 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 21:05:11,576 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 21:05:11,651 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 21:05:11,653 INFO L272 AbstractInterpreter]: Visited 12 different actions 12 times. Never merged. Never widened. Performed 47 root evaluator evaluations with a maximum evaluation depth of 4. Performed 47 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Never found a fixpoint. Largest state had 29 variables. [2019-10-13 21:05:11,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:05:11,658 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 21:05:11,760 INFO L227 lantSequenceWeakener]: Weakened 10 states. On average, predicates are now at 80.33% of their original sizes. [2019-10-13 21:05:11,761 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 21:05:11,790 INFO L553 sIntCurrentIteration]: We unified 41 AI predicates to 41 [2019-10-13 21:05:11,791 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 21:05:11,792 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 21:05:11,792 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14, 6, 6] total 21 [2019-10-13 21:05:11,792 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315899204] [2019-10-13 21:05:11,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:05:11,795 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 21:05:11,795 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 21:05:11,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:05:11,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:05:11,796 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 7 states. [2019-10-13 21:05:11,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:05:11,830 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2019-10-13 21:05:11,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:05:11,835 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2019-10-13 21:05:11,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:05:11,835 INFO L225 Difference]: With dead ends: 46 [2019-10-13 21:05:11,836 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:05:11,837 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:05:11,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:05:11,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:05:11,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:05:11,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:05:11,838 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2019-10-13 21:05:11,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:05:11,839 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:05:11,839 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:05:11,839 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:05:11,839 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:05:12,040 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:05:12,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:05:12,165 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:05:12,166 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:05:12,166 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:05:12,166 INFO L446 ceAbstractionStarter]: At program point L561(line 561) the Hoare annotation is: true [2019-10-13 21:05:12,166 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 560 562) the Hoare annotation is: true [2019-10-13 21:05:12,166 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 560 562) no Hoare annotation was computed. [2019-10-13 21:05:12,166 INFO L443 ceAbstractionStarter]: For program point sll_destroyEXIT(lines 581 587) no Hoare annotation was computed. [2019-10-13 21:05:12,167 INFO L446 ceAbstractionStarter]: At program point L582-2(lines 582 586) the Hoare annotation is: true [2019-10-13 21:05:12,167 INFO L446 ceAbstractionStarter]: At program point sll_destroyENTRY(lines 581 587) the Hoare annotation is: true [2019-10-13 21:05:12,167 INFO L443 ceAbstractionStarter]: For program point L582-3(lines 581 587) no Hoare annotation was computed. [2019-10-13 21:05:12,167 INFO L443 ceAbstractionStarter]: For program point sll_update_atFINAL(lines 595 601) no Hoare annotation was computed. [2019-10-13 21:05:12,167 INFO L446 ceAbstractionStarter]: At program point L596-2(lines 596 599) the Hoare annotation is: true [2019-10-13 21:05:12,167 INFO L443 ceAbstractionStarter]: For program point L596-3(lines 596 599) no Hoare annotation was computed. [2019-10-13 21:05:12,167 INFO L443 ceAbstractionStarter]: For program point sll_update_atEXIT(lines 595 601) no Hoare annotation was computed. [2019-10-13 21:05:12,168 INFO L446 ceAbstractionStarter]: At program point sll_update_atENTRY(lines 595 601) the Hoare annotation is: true [2019-10-13 21:05:12,168 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:05:12,168 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:05:12,168 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:05:12,168 INFO L439 ceAbstractionStarter]: At program point L575(line 575) the Hoare annotation is: (or (not (= |sll_create_#in~len| 2)) (not (= |sll_create_#in~data| 1)) (and (= sll_create_~data 1) (= sll_create_~head~0.base 0) (= sll_create_~len 2) (= sll_create_~head~0.offset 0))) [2019-10-13 21:05:12,168 INFO L443 ceAbstractionStarter]: For program point sll_createEXIT(lines 572 580) no Hoare annotation was computed. [2019-10-13 21:05:12,168 INFO L443 ceAbstractionStarter]: For program point L575-1(line 575) no Hoare annotation was computed. [2019-10-13 21:05:12,169 INFO L443 ceAbstractionStarter]: For program point L574-2(lines 574 578) no Hoare annotation was computed. [2019-10-13 21:05:12,169 INFO L439 ceAbstractionStarter]: At program point L574-3(lines 574 578) the Hoare annotation is: (or (not (= |sll_create_#in~len| 2)) (not (= |sll_create_#in~data| 1)) (and (= sll_create_~data 1) (= sll_create_~head~0.base 0) (= sll_create_~len 2) (= sll_create_~head~0.offset 0))) [2019-10-13 21:05:12,169 INFO L443 ceAbstractionStarter]: For program point L574-4(lines 574 578) no Hoare annotation was computed. [2019-10-13 21:05:12,169 INFO L446 ceAbstractionStarter]: At program point sll_createENTRY(lines 572 580) the Hoare annotation is: true [2019-10-13 21:05:12,169 INFO L443 ceAbstractionStarter]: For program point sll_createFINAL(lines 572 580) no Hoare annotation was computed. [2019-10-13 21:05:12,170 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:05:12,170 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:05:12,170 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:05:12,170 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:05:12,170 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 21:05:12,170 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:05:12,170 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:05:12,171 INFO L446 ceAbstractionStarter]: At program point sll_get_data_atENTRY(lines 588 594) the Hoare annotation is: true [2019-10-13 21:05:12,171 INFO L443 ceAbstractionStarter]: For program point sll_get_data_atFINAL(lines 588 594) no Hoare annotation was computed. [2019-10-13 21:05:12,171 INFO L446 ceAbstractionStarter]: At program point L589-2(lines 589 592) the Hoare annotation is: true [2019-10-13 21:05:12,171 INFO L443 ceAbstractionStarter]: For program point L589-3(lines 589 592) no Hoare annotation was computed. [2019-10-13 21:05:12,171 INFO L443 ceAbstractionStarter]: For program point sll_get_data_atEXIT(lines 588 594) no Hoare annotation was computed. [2019-10-13 21:05:12,171 INFO L439 ceAbstractionStarter]: At program point L609(line 609) the Hoare annotation is: false [2019-10-13 21:05:12,171 INFO L443 ceAbstractionStarter]: For program point L611-2(lines 611 616) no Hoare annotation was computed. [2019-10-13 21:05:12,171 INFO L443 ceAbstractionStarter]: For program point L609-1(lines 607 610) no Hoare annotation was computed. [2019-10-13 21:05:12,172 INFO L439 ceAbstractionStarter]: At program point L611-3(lines 611 616) the Hoare annotation is: false [2019-10-13 21:05:12,172 INFO L446 ceAbstractionStarter]: At program point L611-4(lines 611 616) the Hoare annotation is: true [2019-10-13 21:05:12,172 INFO L439 ceAbstractionStarter]: At program point L605(line 605) the Hoare annotation is: (and (= main_~data~0 1) (= main_~len~0 2)) [2019-10-13 21:05:12,172 INFO L439 ceAbstractionStarter]: At program point L607-2(lines 607 610) the Hoare annotation is: false [2019-10-13 21:05:12,172 INFO L443 ceAbstractionStarter]: For program point L605-1(line 605) no Hoare annotation was computed. [2019-10-13 21:05:12,172 INFO L443 ceAbstractionStarter]: For program point L607-3(lines 607 610) no Hoare annotation was computed. [2019-10-13 21:05:12,173 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 602 621) no Hoare annotation was computed. [2019-10-13 21:05:12,173 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 619) no Hoare annotation was computed. [2019-10-13 21:05:12,173 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 602 621) no Hoare annotation was computed. [2019-10-13 21:05:12,173 INFO L439 ceAbstractionStarter]: At program point L614(lines 602 621) the Hoare annotation is: false [2019-10-13 21:05:12,173 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 602 621) the Hoare annotation is: true [2019-10-13 21:05:12,173 INFO L443 ceAbstractionStarter]: For program point L617(line 617) no Hoare annotation was computed. [2019-10-13 21:05:12,174 INFO L439 ceAbstractionStarter]: At program point L613(line 613) the Hoare annotation is: false [2019-10-13 21:05:12,174 INFO L443 ceAbstractionStarter]: For program point L613-1(line 613) no Hoare annotation was computed. [2019-10-13 21:05:12,174 INFO L443 ceAbstractionStarter]: For program point L613-2(lines 613 615) no Hoare annotation was computed. [2019-10-13 21:05:12,174 INFO L446 ceAbstractionStarter]: At program point node_createENTRY(lines 563 571) the Hoare annotation is: true [2019-10-13 21:05:12,174 INFO L443 ceAbstractionStarter]: For program point node_createFINAL(lines 563 571) no Hoare annotation was computed. [2019-10-13 21:05:12,174 INFO L446 ceAbstractionStarter]: At program point L566(line 566) the Hoare annotation is: true [2019-10-13 21:05:12,175 INFO L443 ceAbstractionStarter]: For program point node_createEXIT(lines 563 571) no Hoare annotation was computed. [2019-10-13 21:05:12,175 INFO L443 ceAbstractionStarter]: For program point L565(lines 565 567) no Hoare annotation was computed. [2019-10-13 21:05:12,175 INFO L443 ceAbstractionStarter]: For program point L565-1(lines 565 567) no Hoare annotation was computed. [2019-10-13 21:05:12,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:05:12 BoogieIcfgContainer [2019-10-13 21:05:12,188 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:05:12,192 INFO L168 Benchmark]: Toolchain (without parser) took 4185.55 ms. Allocated memory was 137.4 MB in the beginning and 251.1 MB in the end (delta: 113.8 MB). Free memory was 100.5 MB in the beginning and 146.6 MB in the end (delta: -46.2 MB). Peak memory consumption was 67.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:12,193 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-13 21:05:12,194 INFO L168 Benchmark]: CACSL2BoogieTranslator took 612.08 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 100.3 MB in the beginning and 164.5 MB in the end (delta: -64.2 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:12,198 INFO L168 Benchmark]: Boogie Preprocessor took 79.27 ms. Allocated memory is still 201.3 MB. Free memory was 164.5 MB in the beginning and 161.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:12,198 INFO L168 Benchmark]: RCFGBuilder took 652.86 ms. Allocated memory is still 201.3 MB. Free memory was 161.4 MB in the beginning and 113.9 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:12,199 INFO L168 Benchmark]: TraceAbstraction took 2836.57 ms. Allocated memory was 201.3 MB in the beginning and 251.1 MB in the end (delta: 49.8 MB). Free memory was 113.9 MB in the beginning and 146.6 MB in the end (delta: -32.7 MB). Peak memory consumption was 17.1 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:12,205 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 612.08 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 100.3 MB in the beginning and 164.5 MB in the end (delta: -64.2 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 79.27 ms. Allocated memory is still 201.3 MB. Free memory was 164.5 MB in the beginning and 161.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 652.86 ms. Allocated memory is still 201.3 MB. Free memory was 161.4 MB in the beginning and 113.9 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2836.57 ms. Allocated memory was 201.3 MB in the beginning and 251.1 MB in the end (delta: 49.8 MB). Free memory was 113.9 MB in the beginning and 146.6 MB in the end (delta: -32.7 MB). Peak memory consumption was 17.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 619]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 589]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 596]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 607]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 561]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 574]: Loop Invariant Derived loop invariant: (!(\old(len) == 2) || !(\old(data) == 1)) || (((data == 1 && head == 0) && len == 2) && head == 0) - InvariantResult [Line: 602]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 62 locations, 1 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 151 SDtfs, 59 SDslu, 165 SDs, 0 SdLazy, 34 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 38 PreInvPairs, 41 NumberOfFragments, 72 HoareAnnotationTreeSize, 38 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 24 FomulaSimplificationsInter, 28 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 200 NumberOfCodeBlocks, 200 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 267 ConstructedInterpolants, 0 QuantifiedInterpolants, 16325 SizeOfPredicates, 4 NumberOfNonLiveVariables, 326 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 4/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 123, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9365853658536585, AVG_VARS_REMOVED_DURING_WEAKENING: 1.2439024390243902, AVG_WEAKENED_CONJUNCTS: 0.9024390243902439, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...