java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --sifa.abstract.domain IntervalDomain -i ../../../trunk/examples/svcomp/loop-acceleration/nested_1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 17:03:57,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 17:03:57,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 17:03:57,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-03 17:03:57,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-03 17:03:57,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-03 17:03:57,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-03 17:03:57,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-03 17:03:57,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-03 17:03:57,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-03 17:03:57,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-03 17:03:57,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-03 17:03:57,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 17:03:57,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 17:03:57,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 17:03:57,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 17:03:57,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 17:03:57,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 17:03:57,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 17:03:57,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 17:03:57,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 17:03:57,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 17:03:57,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 17:03:57,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 17:03:57,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-03 17:03:57,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-03 17:03:57,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-03 17:03:57,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-03 17:03:57,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-03 17:03:57,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-03 17:03:57,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-03 17:03:57,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-03 17:03:57,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-03 17:03:57,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 17:03:57,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 17:03:57,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 17:03:57,957 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 [2019-09-03 17:03:57,972 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 17:03:57,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 17:03:57,974 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-03 17:03:57,974 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-03 17:03:57,975 INFO L138 SettingsManager]: * Use SBE=true [2019-09-03 17:03:57,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 17:03:57,975 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 17:03:57,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-03 17:03:57,975 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 17:03:57,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 17:03:57,976 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 17:03:57,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 17:03:57,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 17:03:57,976 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 17:03:57,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 17:03:57,977 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-03 17:03:57,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 17:03:57,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 17:03:57,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 17:03:57,978 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-03 17:03:57,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-03 17:03:57,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 17:03:57,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 17:03:57,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 17:03:57,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-03 17:03:57,979 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-03 17:03:57,979 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 17:03:57,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 17:03:57,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2019-09-03 17:03:58,008 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 17:03:58,020 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 17:03:58,024 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 17:03:58,025 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 17:03:58,026 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 17:03:58,027 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/nested_1-2.c [2019-09-03 17:03:58,090 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7e367a15/c4db8f931cda45b9a5891bc2126c33ef/FLAGc4be7ec7c [2019-09-03 17:03:58,548 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 17:03:58,551 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/nested_1-2.c [2019-09-03 17:03:58,556 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7e367a15/c4db8f931cda45b9a5891bc2126c33ef/FLAGc4be7ec7c [2019-09-03 17:03:58,941 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7e367a15/c4db8f931cda45b9a5891bc2126c33ef [2019-09-03 17:03:58,953 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 17:03:58,954 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 17:03:58,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 17:03:58,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 17:03:58,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 17:03:58,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 05:03:58" (1/1) ... [2019-09-03 17:03:58,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eca2f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 05:03:58, skipping insertion in model container [2019-09-03 17:03:58,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 05:03:58" (1/1) ... [2019-09-03 17:03:58,970 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 17:03:58,983 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 17:03:59,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 17:03:59,189 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 17:03:59,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 17:03:59,225 INFO L192 MainTranslator]: Completed translation [2019-09-03 17:03:59,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 05:03:59 WrapperNode [2019-09-03 17:03:59,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 17:03:59,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 17:03:59,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 17:03:59,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 17:03:59,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 05:03:59" (1/1) ... [2019-09-03 17:03:59,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 05:03:59" (1/1) ... [2019-09-03 17:03:59,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 05:03:59" (1/1) ... [2019-09-03 17:03:59,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 05:03:59" (1/1) ... [2019-09-03 17:03:59,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 05:03:59" (1/1) ... [2019-09-03 17:03:59,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 05:03:59" (1/1) ... [2019-09-03 17:03:59,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 05:03:59" (1/1) ... [2019-09-03 17:03:59,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 17:03:59,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 17:03:59,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 17:03:59,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 17:03:59,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 05:03:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 17:03:59,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 17:03:59,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 17:03:59,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 17:03:59,391 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 17:03:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 17:03:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 17:03:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 17:03:59,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 17:03:59,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 17:03:59,569 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 17:03:59,569 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-03 17:03:59,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 05:03:59 BoogieIcfgContainer [2019-09-03 17:03:59,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 17:03:59,573 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-03 17:03:59,573 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-03 17:03:59,574 INFO L275 PluginConnector]: Sifa initialized [2019-09-03 17:03:59,576 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 05:03:59" (1/1) ... [2019-09-03 17:03:59,577 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=IntervalDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=ReUseSupersetCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=NONE ♦ Intern Fluid=SizeLimitFluid [2019-09-03 17:03:59,609 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-03 17:03:59,609 INFO L169 IcfgInterpreter]: Building call graph [2019-09-03 17:03:59,617 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-03 17:03:59,631 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-03 17:03:59,632 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-03 17:03:59,682 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs