/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/loop-acceleration/underapprox_1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 16:22:18,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 16:22:18,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 16:22:18,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 16:22:18,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 16:22:18,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 16:22:18,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 16:22:18,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 16:22:18,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 16:22:18,689 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 16:22:18,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 16:22:18,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 16:22:18,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 16:22:18,692 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 16:22:18,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 16:22:18,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 16:22:18,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 16:22:18,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 16:22:18,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 16:22:18,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 16:22:18,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 16:22:18,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 16:22:18,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 16:22:18,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 16:22:18,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 16:22:18,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 16:22:18,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 16:22:18,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 16:22:18,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 16:22:18,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 16:22:18,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 16:22:18,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 16:22:18,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 16:22:18,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 16:22:18,714 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 16:22:18,715 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 16:22:18,716 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 16:22:18,742 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 16:22:18,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 16:22:18,743 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 16:22:18,743 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 16:22:18,744 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 16:22:18,744 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 16:22:18,744 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 16:22:18,744 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 16:22:18,744 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 16:22:18,745 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 16:22:18,746 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 16:22:18,746 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 16:22:18,746 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 16:22:18,747 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 16:22:18,747 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 16:22:18,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 16:22:18,748 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 16:22:18,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 16:22:18,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 16:22:18,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 16:22:18,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 16:22:18,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 16:22:18,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 16:22:18,750 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 16:22:18,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 16:22:18,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 16:22:18,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 16:22:18,752 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 16:22:18,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 16:22:18,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 16:22:18,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 16:22:18,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 16:22:18,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 16:22:18,754 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 16:22:18,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 16:22:18,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 16:22:18,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 16:22:18,755 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 16:22:19,014 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 16:22:19,027 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 16:22:19,030 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 16:22:19,032 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 16:22:19,032 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 16:22:19,033 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/underapprox_1-1.c [2019-11-24 16:22:19,092 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceebae6db/a106bfb291544c8988aaa3403bdd806a/FLAGca46d78bb [2019-11-24 16:22:19,512 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 16:22:19,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/underapprox_1-1.c [2019-11-24 16:22:19,519 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceebae6db/a106bfb291544c8988aaa3403bdd806a/FLAGca46d78bb [2019-11-24 16:22:19,917 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceebae6db/a106bfb291544c8988aaa3403bdd806a [2019-11-24 16:22:19,927 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 16:22:19,929 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 16:22:19,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 16:22:19,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 16:22:19,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 16:22:19,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:22:19" (1/1) ... [2019-11-24 16:22:19,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e1a5ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:22:19, skipping insertion in model container [2019-11-24 16:22:19,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:22:19" (1/1) ... [2019-11-24 16:22:19,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 16:22:19,971 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 16:22:20,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 16:22:20,138 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 16:22:20,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 16:22:20,164 INFO L208 MainTranslator]: Completed translation [2019-11-24 16:22:20,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:22:20 WrapperNode [2019-11-24 16:22:20,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 16:22:20,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 16:22:20,166 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 16:22:20,166 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 16:22:20,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:22:20" (1/1) ... [2019-11-24 16:22:20,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:22:20" (1/1) ... [2019-11-24 16:22:20,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 16:22:20,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 16:22:20,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 16:22:20,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 16:22:20,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:22:20" (1/1) ... [2019-11-24 16:22:20,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:22:20" (1/1) ... [2019-11-24 16:22:20,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:22:20" (1/1) ... [2019-11-24 16:22:20,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:22:20" (1/1) ... [2019-11-24 16:22:20,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:22:20" (1/1) ... [2019-11-24 16:22:20,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:22:20" (1/1) ... [2019-11-24 16:22:20,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:22:20" (1/1) ... [2019-11-24 16:22:20,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 16:22:20,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 16:22:20,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 16:22:20,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 16:22:20,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:22:20" (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 [2019-11-24 16:22:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 16:22:20,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 16:22:20,550 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 16:22:20,550 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-24 16:22:20,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:22:20 BoogieIcfgContainer [2019-11-24 16:22:20,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 16:22:20,552 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-24 16:22:20,552 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-24 16:22:20,553 INFO L275 PluginConnector]: Sifa initialized [2019-11-24 16:22:20,554 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:22:20" (1/1) ... [2019-11-24 16:22:20,554 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=CompoundDomain ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=SIMPLIFY_QUICK ♦ SizeLimitFluid Max. DAG Size=-1 [2019-11-24 16:22:20,575 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-11-24 16:22:20,575 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 16:22:20,582 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 16:22:20,589 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 16:22:20,590 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 16:22:21,353 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-24 16:22:21,386 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-11-24 16:22:21,386 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-11-24 16:22:21,391 INFO L168 Benchmark]: Toolchain (without parser) took 1459.34 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 103.0 MB in the beginning and 101.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 64.7 MB. Max. memory is 7.1 GB. [2019-11-24 16:22:21,392 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-24 16:22:21,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.97 ms. Allocated memory is still 137.9 MB. Free memory was 102.8 MB in the beginning and 93.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-11-24 16:22:21,396 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.79 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 93.4 MB in the beginning and 180.5 MB in the end (delta: -87.1 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2019-11-24 16:22:21,397 INFO L168 Benchmark]: Boogie Preprocessor took 20.38 ms. Allocated memory is still 201.3 MB. Free memory was 180.5 MB in the beginning and 179.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-11-24 16:22:21,398 INFO L168 Benchmark]: RCFGBuilder took 256.96 ms. Allocated memory is still 201.3 MB. Free memory was 179.2 MB in the beginning and 168.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2019-11-24 16:22:21,404 INFO L168 Benchmark]: Sifa took 834.00 ms. Allocated memory is still 201.3 MB. Free memory was 168.3 MB in the beginning and 101.7 MB in the end (delta: 66.6 MB). Peak memory consumption was 66.6 MB. Max. memory is 7.1 GB. [2019-11-24 16:22:21,417 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 234.97 ms. Allocated memory is still 137.9 MB. Free memory was 102.8 MB in the beginning and 93.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 108.79 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 93.4 MB in the beginning and 180.5 MB in the end (delta: -87.1 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 20.38 ms. Allocated memory is still 201.3 MB. Free memory was 180.5 MB in the beginning and 179.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 256.96 ms. Allocated memory is still 201.3 MB. Free memory was 179.2 MB in the beginning and 168.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * Sifa took 834.00 ms. Allocated memory is still 201.3 MB. Free memory was 168.3 MB in the beginning and 101.7 MB in the end (delta: 66.6 MB). Peak memory consumption was 66.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 779, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 0, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 11, TOOLS_POST_TIME[ms]: 101, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 11, TOOLS_QUANTIFIERELIM_TIME[ms]: 74, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 19, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 27, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME[ms]: 0, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 6, DOMAIN_WIDEN_TIME[ms]: 557, DOMAIN_ISSUBSETEQ_APPLICATIONS: 7, DOMAIN_ISSUBSETEQ_TIME[ms]: 70, DOMAIN_ISBOTTOM_APPLICATIONS: 0, DOMAIN_ISBOTTOM_TIME[ms]: 0, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 726, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 726, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 7, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 2, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 8, DAG_COMPRESSION_PROCESSED_NODES: 21, DAG_COMPRESSION_RETAINED_NODES: 13 - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 31#(and (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (= 0 ULTIMATE.start___VERIFIER_assert_~cond) (not (< (mod ULTIMATE.start_main_~x~0 4294967296) 6)) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| (ite (not (= 64 (mod ULTIMATE.start_main_~y~0 4294967296))) 1 0)) (or (and (= 0 (mod ULTIMATE.start_main_~y~0 (- 2))) (< (mod (+ ULTIMATE.start_main_~x~0 4294967295) 4294967296) 6) (<= 1 ULTIMATE.start_main_~x~0) (or (and (or (and (= (div (- ULTIMATE.start_main_~y~0) (- 2)) 1) (= 0 (+ ULTIMATE.start_main_~x~0 (- 1)))) (and (= 1 (+ ULTIMATE.start_main_~x~0 (- 1))) (= (div (- ULTIMATE.start_main_~y~0) (- 2)) 2))) (<= 1 (div (- ULTIMATE.start_main_~y~0) (- 2)))) (and (<= 1 (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (= 0 (mod (div (- ULTIMATE.start_main_~y~0) (- 2)) (- 2))) (<= 2 ULTIMATE.start_main_~x~0) (< (mod (+ ULTIMATE.start_main_~x~0 4294967294) 4294967296) 6) (or (and (= (+ ULTIMATE.start_main_~x~0 (- 2)) 0) (= (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2)) 1)) (and (= (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2)) 2) (= (+ ULTIMATE.start_main_~x~0 (- 2)) 1)))))) (and (= 0 (mod ULTIMATE.start_main_~y~0 (- 2))) (< (mod (+ ULTIMATE.start_main_~x~0 4294967295) 4294967296) 6) (<= 1 ULTIMATE.start_main_~x~0) (<= 1 (div (- ULTIMATE.start_main_~y~0) (- 2))) (or (and (= (div (- ULTIMATE.start_main_~y~0) (- 2)) 1) (= 0 (+ ULTIMATE.start_main_~x~0 (- 1)))) (and (= 1 (+ ULTIMATE.start_main_~x~0 (- 1))) (= (div (- ULTIMATE.start_main_~y~0) (- 2)) 2)))) (and (= 0 (mod ULTIMATE.start_main_~y~0 (- 2))) (< (mod (+ ULTIMATE.start_main_~x~0 4294967295) 4294967296) 6) (<= 1 ULTIMATE.start_main_~x~0) (or (and (<= 1 (div (- ULTIMATE.start_main_~y~0) (- 2))) (or (and (= (div (- ULTIMATE.start_main_~y~0) (- 2)) 1) (= 0 (+ ULTIMATE.start_main_~x~0 (- 1)))) (and (= 1 (+ ULTIMATE.start_main_~x~0 (- 1))) (= (div (- ULTIMATE.start_main_~y~0) (- 2)) 2)))) (and (<= 1 (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (= 0 (mod (div (- ULTIMATE.start_main_~y~0) (- 2)) (- 2))) (<= 2 ULTIMATE.start_main_~x~0) (< (mod (+ ULTIMATE.start_main_~x~0 4294967294) 4294967296) 6) (or (and (= (+ ULTIMATE.start_main_~x~0 (- 2)) 0) (= (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2)) 1)) (and (= (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2)) 2) (= (+ ULTIMATE.start_main_~x~0 (- 2)) 1)))))) (and (= 0 (mod ULTIMATE.start_main_~y~0 (- 2))) (< (mod (+ ULTIMATE.start_main_~x~0 4294967295) 4294967296) 6) (<= 1 ULTIMATE.start_main_~x~0) (or (and (<= 1 (div (- ULTIMATE.start_main_~y~0) (- 2))) (or (and (= (div (- ULTIMATE.start_main_~y~0) (- 2)) 1) (= 0 (+ ULTIMATE.start_main_~x~0 (- 1)))) (and (= 1 (+ ULTIMATE.start_main_~x~0 (- 1))) (= (div (- ULTIMATE.start_main_~y~0) (- 2)) 2)))) (and (or (and (= (mod (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2)) (- 2)) 0) (< (mod (+ ULTIMATE.start_main_~x~0 4294967293) 4294967296) 6) (<= 1 (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (or (and (= 0 (+ ULTIMATE.start_main_~x~0 (- 3))) (= 1 (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2)))) (and (= 2 (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (= 1 (+ ULTIMATE.start_main_~x~0 (- 3))))) (<= 3 ULTIMATE.start_main_~x~0)) (and (<= 1 (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (or (and (= (+ ULTIMATE.start_main_~x~0 (- 2)) 0) (= (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2)) 1)) (and (= (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2)) 2) (= (+ ULTIMATE.start_main_~x~0 (- 2)) 1))))) (= 0 (mod (div (- ULTIMATE.start_main_~y~0) (- 2)) (- 2))) (<= 2 ULTIMATE.start_main_~x~0) (< (mod (+ ULTIMATE.start_main_~x~0 4294967294) 4294967296) 6)) (and (or (and (= (mod (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2)) (- 2)) 0) (< (mod (+ ULTIMATE.start_main_~x~0 4294967293) 4294967296) 6) (<= 1 (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (or (and (= 0 (+ ULTIMATE.start_main_~x~0 (- 3))) (= 1 (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2)))) (and (= 2 (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (= 1 (+ ULTIMATE.start_main_~x~0 (- 3))))) (<= 3 ULTIMATE.start_main_~x~0)) (and (<= 1 (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (or (and (= (+ ULTIMATE.start_main_~x~0 (- 2)) 0) (= (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2)) 1)) (and (= (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2)) 2) (= (+ ULTIMATE.start_main_~x~0 (- 2)) 1)))) (and (= (mod (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2)) (- 2)) 0) (< (mod (+ ULTIMATE.start_main_~x~0 4294967293) 4294967296) 6) (<= 3 ULTIMATE.start_main_~x~0) (or (and (< (mod (+ ULTIMATE.start_main_~x~0 4294967292) 4294967296) 6) (<= 4 ULTIMATE.start_main_~x~0) (<= 1 (div (- (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (- 2))) (= (mod (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2)) (- 2)) 0) (or (and (= (div (- (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (- 2)) 2) (= (+ ULTIMATE.start_main_~x~0 (- 4)) 1)) (and (= (+ ULTIMATE.start_main_~x~0 (- 4)) 0) (= (div (- (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (- 2)) 1)))) (and (<= 1 (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (or (and (= 0 (+ ULTIMATE.start_main_~x~0 (- 3))) (= 1 (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2)))) (and (= 2 (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (= 1 (+ ULTIMATE.start_main_~x~0 (- 3)))))))) (and (or (and (< (mod (+ ULTIMATE.start_main_~x~0 4294967292) 4294967296) 6) (<= 4 ULTIMATE.start_main_~x~0) (<= 1 (div (- (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (- 2))) (= (mod (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2)) (- 2)) 0) (or (and (= (div (- (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (- 2)) 2) (= (+ ULTIMATE.start_main_~x~0 (- 4)) 1)) (and (= (+ ULTIMATE.start_main_~x~0 (- 4)) 0) (= (div (- (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (- 2)) 1)))) (and (<= 1 (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (or (and (= 0 (+ ULTIMATE.start_main_~x~0 (- 3))) (= 1 (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2)))) (and (= 2 (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (= 1 (+ ULTIMATE.start_main_~x~0 (- 3)))))) (and (< (mod (+ ULTIMATE.start_main_~x~0 4294967292) 4294967296) 6) (<= 4 ULTIMATE.start_main_~x~0) (= (mod (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2)) (- 2)) 0) (or (and (<= 5 ULTIMATE.start_main_~x~0) (< (mod (+ ULTIMATE.start_main_~x~0 4294967291) 4294967296) 6) (<= 1 (div (- (div (- (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (- 2))) (- 2))) (= 0 (mod (div (- (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (- 2)) (- 2))) (or (and (= (+ ULTIMATE.start_main_~x~0 (- 5)) 0) (= (div (- (div (- (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (- 2))) (- 2)) 1)) (and (= (+ ULTIMATE.start_main_~x~0 (- 5)) 1) (= (div (- (div (- (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (- 2))) (- 2)) 2)))) (and (<= 1 (div (- (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (- 2))) (or (and (= (div (- (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (- 2)) 2) (= (+ ULTIMATE.start_main_~x~0 (- 4)) 1)) (and (= (+ ULTIMATE.start_main_~x~0 (- 4)) 0) (= (div (- (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (- 2)) 1))))))) (= (mod (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2)) (- 2)) 0) (< (mod (+ ULTIMATE.start_main_~x~0 4294967293) 4294967296) 6) (<= 3 ULTIMATE.start_main_~x~0))) (= 0 (mod (div (- ULTIMATE.start_main_~y~0) (- 2)) (- 2))) (<= 2 ULTIMATE.start_main_~x~0) (< (mod (+ ULTIMATE.start_main_~x~0 4294967294) 4294967296) 6)) (and (<= 1 (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (= 0 (mod (div (- ULTIMATE.start_main_~y~0) (- 2)) (- 2))) (<= 2 ULTIMATE.start_main_~x~0) (< (mod (+ ULTIMATE.start_main_~x~0 4294967294) 4294967296) 6) (or (and (= (+ ULTIMATE.start_main_~x~0 (- 2)) 0) (= (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2)) 1)) (and (= (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2)) 2) (= (+ ULTIMATE.start_main_~x~0 (- 2)) 1)))))) (and (or (and (= ULTIMATE.start_main_~x~0 0) (= ULTIMATE.start_main_~y~0 1)) (and (= ULTIMATE.start_main_~y~0 2) (= ULTIMATE.start_main_~x~0 1))) (<= 1 ULTIMATE.start_main_~y~0)) (and (= 0 (mod ULTIMATE.start_main_~y~0 (- 2))) (< (mod (+ ULTIMATE.start_main_~x~0 4294967295) 4294967296) 6) (<= 1 ULTIMATE.start_main_~x~0) (or (and (or (and (<= 1 (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (or (and (= (+ ULTIMATE.start_main_~x~0 (- 2)) 0) (= (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2)) 1)) (and (= (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2)) 2) (= (+ ULTIMATE.start_main_~x~0 (- 2)) 1)))) (and (= (mod (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2)) (- 2)) 0) (< (mod (+ ULTIMATE.start_main_~x~0 4294967293) 4294967296) 6) (or (and (< (mod (+ ULTIMATE.start_main_~x~0 4294967292) 4294967296) 6) (<= 4 ULTIMATE.start_main_~x~0) (<= 1 (div (- (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (- 2))) (= (mod (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2)) (- 2)) 0) (or (and (= (div (- (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (- 2)) 2) (= (+ ULTIMATE.start_main_~x~0 (- 4)) 1)) (and (= (+ ULTIMATE.start_main_~x~0 (- 4)) 0) (= (div (- (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (- 2)) 1)))) (and (or (and (= 0 (+ ULTIMATE.start_main_~x~0 (- 3))) (= 1 (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2)))) (and (= 2 (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (= 1 (+ ULTIMATE.start_main_~x~0 (- 3))))) (<= 1 (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))))) (<= 3 ULTIMATE.start_main_~x~0)) (and (= (mod (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2)) (- 2)) 0) (< (mod (+ ULTIMATE.start_main_~x~0 4294967293) 4294967296) 6) (or (and (= 0 (+ ULTIMATE.start_main_~x~0 (- 3))) (= 1 (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2)))) (and (= 2 (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (= 1 (+ ULTIMATE.start_main_~x~0 (- 3))))) (<= 1 (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (<= 3 ULTIMATE.start_main_~x~0))) (= 0 (mod (div (- ULTIMATE.start_main_~y~0) (- 2)) (- 2))) (<= 2 ULTIMATE.start_main_~x~0) (< (mod (+ ULTIMATE.start_main_~x~0 4294967294) 4294967296) 6)) (and (= 0 (mod (div (- ULTIMATE.start_main_~y~0) (- 2)) (- 2))) (<= 2 ULTIMATE.start_main_~x~0) (< (mod (+ ULTIMATE.start_main_~x~0 4294967294) 4294967296) 6) (or (and (<= 1 (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (or (and (= (+ ULTIMATE.start_main_~x~0 (- 2)) 0) (= (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2)) 1)) (and (= (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2)) 2) (= (+ ULTIMATE.start_main_~x~0 (- 2)) 1)))) (and (= (mod (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2)) (- 2)) 0) (< (mod (+ ULTIMATE.start_main_~x~0 4294967293) 4294967296) 6) (or (and (= 0 (+ ULTIMATE.start_main_~x~0 (- 3))) (= 1 (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2)))) (and (= 2 (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (= 1 (+ ULTIMATE.start_main_~x~0 (- 3))))) (<= 1 (div (- (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (- 2))) (<= 3 ULTIMATE.start_main_~x~0)))) (and (or (and (= (div (- ULTIMATE.start_main_~y~0) (- 2)) 1) (= 0 (+ ULTIMATE.start_main_~x~0 (- 1)))) (and (= 1 (+ ULTIMATE.start_main_~x~0 (- 1))) (= (div (- ULTIMATE.start_main_~y~0) (- 2)) 2))) (<= 1 (div (- ULTIMATE.start_main_~y~0) (- 2)))) (and (<= 1 (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2))) (= 0 (mod (div (- ULTIMATE.start_main_~y~0) (- 2)) (- 2))) (<= 2 ULTIMATE.start_main_~x~0) (< (mod (+ ULTIMATE.start_main_~x~0 4294967294) 4294967296) 6) (or (and (= (+ ULTIMATE.start_main_~x~0 (- 2)) 0) (= (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2)) 1)) (and (= (div (- (div (- ULTIMATE.start_main_~y~0) (- 2))) (- 2)) 2) (= (+ ULTIMATE.start_main_~x~0 (- 2)) 1))))))) (<= 0 ULTIMATE.start_main_~x~0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...