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 -i ../../../trunk/examples/svcomp/recursive-simple/fibo_20-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-584d7b9 [2019-08-31 17:50:13,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-31 17:50:13,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-31 17:50:13,953 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-31 17:50:13,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-31 17:50:13,954 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-31 17:50:13,956 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-31 17:50:13,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-31 17:50:13,959 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-31 17:50:13,960 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-31 17:50:13,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-08-31 17:50:13,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-31 17:50:13,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-31 17:50:13,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-31 17:50:13,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-31 17:50:13,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-31 17:50:13,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-31 17:50:13,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-31 17:50:13,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-31 17:50:13,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-31 17:50:13,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-31 17:50:13,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-31 17:50:13,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-31 17:50:13,975 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-31 17:50:13,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-31 17:50:13,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-31 17:50:13,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-31 17:50:13,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-31 17:50:13,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-31 17:50:13,983 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-31 17:50:13,983 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-31 17:50:13,984 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-31 17:50:13,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-31 17:50:13,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-31 17:50:13,991 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-31 17:50:13,991 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-31 17:50:13,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-31 17:50:13,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-31 17:50:13,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-31 17:50:13,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-31 17:50:13,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-31 17:50:13,995 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 [2019-08-31 17:50:14,021 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-31 17:50:14,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-31 17:50:14,024 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-31 17:50:14,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-31 17:50:14,025 INFO L138 SettingsManager]: * Use SBE=true [2019-08-31 17:50:14,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-31 17:50:14,025 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-31 17:50:14,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-31 17:50:14,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-31 17:50:14,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-31 17:50:14,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-31 17:50:14,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-31 17:50:14,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-31 17:50:14,028 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-31 17:50:14,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-31 17:50:14,028 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-31 17:50:14,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-31 17:50:14,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-31 17:50:14,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-31 17:50:14,029 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-31 17:50:14,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-31 17:50:14,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-31 17:50:14,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-31 17:50:14,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-31 17:50:14,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-31 17:50:14,031 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-31 17:50:14,031 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-31 17:50:14,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-31 17:50:14,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-31 17:50:14,084 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-31 17:50:14,097 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-31 17:50:14,100 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-31 17:50:14,102 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-31 17:50:14,102 INFO L275 PluginConnector]: CDTParser initialized [2019-08-31 17:50:14,103 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_20-2.c [2019-08-31 17:50:14,175 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/472e3cb7b/bd1b8bdb056547cd9e8b4f4c93fe0328/FLAGd7147af94 [2019-08-31 17:50:14,624 INFO L306 CDTParser]: Found 1 translation units. [2019-08-31 17:50:14,626 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/fibo_20-2.c [2019-08-31 17:50:14,634 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/472e3cb7b/bd1b8bdb056547cd9e8b4f4c93fe0328/FLAGd7147af94 [2019-08-31 17:50:14,980 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/472e3cb7b/bd1b8bdb056547cd9e8b4f4c93fe0328 [2019-08-31 17:50:14,988 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-31 17:50:14,990 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-31 17:50:14,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-31 17:50:14,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-31 17:50:14,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-31 17:50:14,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 05:50:14" (1/1) ... [2019-08-31 17:50:14,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cb8df37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:14, skipping insertion in model container [2019-08-31 17:50:14,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 05:50:14" (1/1) ... [2019-08-31 17:50:15,006 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-31 17:50:15,022 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-31 17:50:15,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 17:50:15,185 INFO L188 MainTranslator]: Completed pre-run [2019-08-31 17:50:15,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 17:50:15,217 INFO L192 MainTranslator]: Completed translation [2019-08-31 17:50:15,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:15 WrapperNode [2019-08-31 17:50:15,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-31 17:50:15,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-31 17:50:15,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-31 17:50:15,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-31 17:50:15,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:15" (1/1) ... [2019-08-31 17:50:15,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:15" (1/1) ... [2019-08-31 17:50:15,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:15" (1/1) ... [2019-08-31 17:50:15,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:15" (1/1) ... [2019-08-31 17:50:15,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:15" (1/1) ... [2019-08-31 17:50:15,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:15" (1/1) ... [2019-08-31 17:50:15,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:15" (1/1) ... [2019-08-31 17:50:15,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-31 17:50:15,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-31 17:50:15,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-31 17:50:15,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-31 17:50:15,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:15" (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 [2019-08-31 17:50:15,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-31 17:50:15,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-31 17:50:15,379 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2019-08-31 17:50:15,379 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-31 17:50:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-31 17:50:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-31 17:50:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2019-08-31 17:50:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-31 17:50:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-31 17:50:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-31 17:50:15,546 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-31 17:50:15,546 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-31 17:50:15,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 05:50:15 BoogieIcfgContainer [2019-08-31 17:50:15,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-31 17:50:15,551 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-08-31 17:50:15,551 INFO L271 PluginConnector]: Initializing Sifa... [2019-08-31 17:50:15,551 INFO L275 PluginConnector]: Sifa initialized [2019-08-31 17:50:15,559 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 05:50:15" (1/1) ... [2019-08-31 17:50:15,633 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-31 17:50:15,638 INFO L169 IcfgInterpreter]: Building call graph [2019-08-31 17:50:15,647 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.sifa has thrown an exception: java.lang.IllegalArgumentException: Recursive programs are not supported. at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.(CallGraph.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.(IcfgInterpreter.java:93) at de.uni_freiburg.informatik.ultimate.plugins.sifa.SifaBuilder.construct(SifaBuilder.java:107) at de.uni_freiburg.informatik.ultimate.plugins.sifa.SifaObserver.processIcfg(SifaObserver.java:79) at de.uni_freiburg.informatik.ultimate.plugins.sifa.SifaObserver.process(SifaObserver.java:72) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:156) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-08-31 17:50:15,659 INFO L168 Benchmark]: Toolchain (without parser) took 667.78 ms. Allocated memory was 137.9 MB in the beginning and 199.2 MB in the end (delta: 61.3 MB). Free memory was 94.1 MB in the beginning and 162.7 MB in the end (delta: -68.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-31 17:50:15,660 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 137.9 MB. Free memory is still 111.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-31 17:50:15,663 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.64 ms. Allocated memory is still 137.9 MB. Free memory was 94.1 MB in the beginning and 84.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-08-31 17:50:15,665 INFO L168 Benchmark]: Boogie Preprocessor took 103.50 ms. Allocated memory was 137.9 MB in the beginning and 199.2 MB in the end (delta: 61.3 MB). Free memory was 84.8 MB in the beginning and 176.9 MB in the end (delta: -92.1 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. [2019-08-31 17:50:15,669 INFO L168 Benchmark]: RCFGBuilder took 227.85 ms. Allocated memory is still 199.2 MB. Free memory was 176.1 MB in the beginning and 165.1 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-08-31 17:50:15,672 INFO L168 Benchmark]: Sifa took 105.44 ms. Allocated memory is still 199.2 MB. Free memory was 165.1 MB in the beginning and 162.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-08-31 17:50:15,684 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 137.9 MB. Free memory is still 111.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 227.64 ms. Allocated memory is still 137.9 MB. Free memory was 94.1 MB in the beginning and 84.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.50 ms. Allocated memory was 137.9 MB in the beginning and 199.2 MB in the end (delta: 61.3 MB). Free memory was 84.8 MB in the beginning and 176.9 MB in the end (delta: -92.1 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 227.85 ms. Allocated memory is still 199.2 MB. Free memory was 176.1 MB in the beginning and 165.1 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Sifa took 105.44 ms. Allocated memory is still 199.2 MB. Free memory was 165.1 MB in the beginning and 162.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - ExceptionOrErrorResult: IllegalArgumentException: Recursive programs are not supported. de.uni_freiburg.informatik.ultimate.plugins.sifa: IllegalArgumentException: Recursive programs are not supported.: de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...