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_25-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-584d7b9 [2019-08-31 17:50:18,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-31 17:50:18,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-31 17:50:18,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-31 17:50:18,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-31 17:50:18,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-31 17:50:18,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-31 17:50:18,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-31 17:50:18,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-31 17:50:18,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-31 17:50:18,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-08-31 17:50:18,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-31 17:50:18,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-31 17:50:18,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-31 17:50:18,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-31 17:50:18,227 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-31 17:50:18,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-31 17:50:18,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-31 17:50:18,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-31 17:50:18,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-31 17:50:18,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-31 17:50:18,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-31 17:50:18,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-31 17:50:18,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-31 17:50:18,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-31 17:50:18,240 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-31 17:50:18,240 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-31 17:50:18,241 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-31 17:50:18,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-31 17:50:18,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-31 17:50:18,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-31 17:50:18,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-31 17:50:18,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-31 17:50:18,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-31 17:50:18,246 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-31 17:50:18,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-31 17:50:18,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-31 17:50:18,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-31 17:50:18,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-31 17:50:18,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-31 17:50:18,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-31 17:50:18,249 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 17:50:18,264 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-31 17:50:18,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-31 17:50:18,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-31 17:50:18,265 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-31 17:50:18,265 INFO L138 SettingsManager]: * Use SBE=true [2019-08-31 17:50:18,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-31 17:50:18,266 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-31 17:50:18,268 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-31 17:50:18,268 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-31 17:50:18,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-31 17:50:18,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-31 17:50:18,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-31 17:50:18,269 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-31 17:50:18,269 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-31 17:50:18,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-31 17:50:18,269 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-31 17:50:18,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-31 17:50:18,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-31 17:50:18,270 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-31 17:50:18,270 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-31 17:50:18,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-31 17:50:18,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-31 17:50:18,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-31 17:50:18,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-31 17:50:18,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-31 17:50:18,273 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-31 17:50:18,273 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-31 17:50:18,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-31 17:50:18,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-31 17:50:18,306 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-31 17:50:18,319 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-31 17:50:18,322 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-31 17:50:18,323 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-31 17:50:18,324 INFO L275 PluginConnector]: CDTParser initialized [2019-08-31 17:50:18,325 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_25-2.c [2019-08-31 17:50:18,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a966fe75f/74d1643480414d7f90b2d967cd1c2532/FLAG22c888911 [2019-08-31 17:50:18,812 INFO L306 CDTParser]: Found 1 translation units. [2019-08-31 17:50:18,814 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/fibo_25-2.c [2019-08-31 17:50:18,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a966fe75f/74d1643480414d7f90b2d967cd1c2532/FLAG22c888911 [2019-08-31 17:50:19,217 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a966fe75f/74d1643480414d7f90b2d967cd1c2532 [2019-08-31 17:50:19,225 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-31 17:50:19,227 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-31 17:50:19,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-31 17:50:19,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-31 17:50:19,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-31 17:50:19,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 05:50:19" (1/1) ... [2019-08-31 17:50:19,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1838f99e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:19, skipping insertion in model container [2019-08-31 17:50:19,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 05:50:19" (1/1) ... [2019-08-31 17:50:19,243 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-31 17:50:19,259 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-31 17:50:19,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 17:50:19,436 INFO L188 MainTranslator]: Completed pre-run [2019-08-31 17:50:19,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 17:50:19,461 INFO L192 MainTranslator]: Completed translation [2019-08-31 17:50:19,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:19 WrapperNode [2019-08-31 17:50:19,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-31 17:50:19,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-31 17:50:19,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-31 17:50:19,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-31 17:50:19,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:19" (1/1) ... [2019-08-31 17:50:19,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:19" (1/1) ... [2019-08-31 17:50:19,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:19" (1/1) ... [2019-08-31 17:50:19,562 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:19" (1/1) ... [2019-08-31 17:50:19,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:19" (1/1) ... [2019-08-31 17:50:19,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:19" (1/1) ... [2019-08-31 17:50:19,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:19" (1/1) ... [2019-08-31 17:50:19,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-31 17:50:19,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-31 17:50:19,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-31 17:50:19,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-31 17:50:19,577 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:19" (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 17:50:19,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-31 17:50:19,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-31 17:50:19,630 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2019-08-31 17:50:19,630 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-31 17:50:19,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-31 17:50:19,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-31 17:50:19,631 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2019-08-31 17:50:19,631 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-31 17:50:19,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-31 17:50:19,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-31 17:50:19,798 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-31 17:50:19,798 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-31 17:50:19,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 05:50:19 BoogieIcfgContainer [2019-08-31 17:50:19,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-31 17:50:19,808 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-08-31 17:50:19,809 INFO L271 PluginConnector]: Initializing Sifa... [2019-08-31 17:50:19,809 INFO L275 PluginConnector]: Sifa initialized [2019-08-31 17:50:19,810 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 05:50:19" (1/1) ... [2019-08-31 17:50:19,890 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-31 17:50:19,891 INFO L169 IcfgInterpreter]: Building call graph [2019-08-31 17:50:19,900 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-08-31 17:50:19,918 INFO L168 Benchmark]: Toolchain (without parser) took 686.31 ms. Allocated memory was 134.7 MB in the beginning and 201.9 MB in the end (delta: 67.1 MB). Free memory was 90.1 MB in the beginning and 165.3 MB in the end (delta: -75.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-31 17:50:19,919 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 134.7 MB. Free memory was 109.1 MB in the beginning and 108.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-31 17:50:19,923 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.99 ms. Allocated memory is still 134.7 MB. Free memory was 89.9 MB in the beginning and 80.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-08-31 17:50:19,927 INFO L168 Benchmark]: Boogie Preprocessor took 112.41 ms. Allocated memory was 134.7 MB in the beginning and 201.9 MB in the end (delta: 67.1 MB). Free memory was 80.8 MB in the beginning and 179.5 MB in the end (delta: -98.6 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. [2019-08-31 17:50:19,930 INFO L168 Benchmark]: RCFGBuilder took 226.73 ms. Allocated memory is still 201.9 MB. Free memory was 178.9 MB in the beginning and 168.0 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2019-08-31 17:50:19,932 INFO L168 Benchmark]: Sifa took 103.32 ms. Allocated memory is still 201.9 MB. Free memory was 168.0 MB in the beginning and 165.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-08-31 17:50:19,942 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 134.7 MB. Free memory was 109.1 MB in the beginning and 108.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 233.99 ms. Allocated memory is still 134.7 MB. Free memory was 89.9 MB in the beginning and 80.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.41 ms. Allocated memory was 134.7 MB in the beginning and 201.9 MB in the end (delta: 67.1 MB). Free memory was 80.8 MB in the beginning and 179.5 MB in the end (delta: -98.6 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 226.73 ms. Allocated memory is still 201.9 MB. Free memory was 178.9 MB in the beginning and 168.0 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * Sifa took 103.32 ms. Allocated memory is still 201.9 MB. Free memory was 168.0 MB in the beginning and 165.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 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...