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_2calls_8-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-584d7b9 [2019-08-31 17:50:54,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-31 17:50:54,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-31 17:50:54,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-31 17:50:54,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-31 17:50:54,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-31 17:50:54,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-31 17:50:54,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-31 17:50:54,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-31 17:50:54,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-31 17:50:54,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-08-31 17:50:54,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-31 17:50:54,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-31 17:50:54,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-31 17:50:54,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-31 17:50:54,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-31 17:50:54,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-31 17:50:54,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-31 17:50:54,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-31 17:50:54,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-31 17:50:54,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-31 17:50:54,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-31 17:50:54,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-31 17:50:54,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-31 17:50:54,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-31 17:50:54,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-31 17:50:54,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-31 17:50:54,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-31 17:50:54,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-31 17:50:54,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-31 17:50:54,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-31 17:50:54,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-31 17:50:54,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-31 17:50:54,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-31 17:50:54,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-31 17:50:54,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-31 17:50:54,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-31 17:50:54,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-31 17:50:54,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-31 17:50:54,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-31 17:50:54,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-31 17:50:54,122 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 17:50:54,136 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-31 17:50:54,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-31 17:50:54,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-31 17:50:54,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-31 17:50:54,138 INFO L138 SettingsManager]: * Use SBE=true [2019-08-31 17:50:54,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-31 17:50:54,138 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-31 17:50:54,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-31 17:50:54,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-31 17:50:54,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-31 17:50:54,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-31 17:50:54,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-31 17:50:54,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-31 17:50:54,140 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-31 17:50:54,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-31 17:50:54,140 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-31 17:50:54,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-31 17:50:54,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-31 17:50:54,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-31 17:50:54,141 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-31 17:50:54,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-31 17:50:54,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-31 17:50:54,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-31 17:50:54,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-31 17:50:54,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-31 17:50:54,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-31 17:50:54,142 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-31 17:50:54,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-31 17:50:54,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-31 17:50:54,171 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-31 17:50:54,182 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-31 17:50:54,185 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-31 17:50:54,189 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-31 17:50:54,189 INFO L275 PluginConnector]: CDTParser initialized [2019-08-31 17:50:54,190 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2019-08-31 17:50:54,255 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e359495e9/397ca51bfbfd49479ec855c57d0e4c40/FLAGbbefe410b [2019-08-31 17:50:54,679 INFO L306 CDTParser]: Found 1 translation units. [2019-08-31 17:50:54,680 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2019-08-31 17:50:54,685 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e359495e9/397ca51bfbfd49479ec855c57d0e4c40/FLAGbbefe410b [2019-08-31 17:50:55,072 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e359495e9/397ca51bfbfd49479ec855c57d0e4c40 [2019-08-31 17:50:55,080 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-31 17:50:55,081 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-31 17:50:55,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-31 17:50:55,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-31 17:50:55,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-31 17:50:55,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 05:50:55" (1/1) ... [2019-08-31 17:50:55,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@177e9539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:55, skipping insertion in model container [2019-08-31 17:50:55,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 05:50:55" (1/1) ... [2019-08-31 17:50:55,097 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-31 17:50:55,117 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-31 17:50:55,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 17:50:55,341 INFO L188 MainTranslator]: Completed pre-run [2019-08-31 17:50:55,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 17:50:55,372 INFO L192 MainTranslator]: Completed translation [2019-08-31 17:50:55,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:55 WrapperNode [2019-08-31 17:50:55,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-31 17:50:55,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-31 17:50:55,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-31 17:50:55,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-31 17:50:55,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:55" (1/1) ... [2019-08-31 17:50:55,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:55" (1/1) ... [2019-08-31 17:50:55,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:55" (1/1) ... [2019-08-31 17:50:55,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:55" (1/1) ... [2019-08-31 17:50:55,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:55" (1/1) ... [2019-08-31 17:50:55,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:55" (1/1) ... [2019-08-31 17:50:55,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:55" (1/1) ... [2019-08-31 17:50:55,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-31 17:50:55,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-31 17:50:55,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-31 17:50:55,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-31 17:50:55,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:50:55" (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 17:50:55,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-31 17:50:55,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-31 17:50:55,537 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2019-08-31 17:50:55,537 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2019-08-31 17:50:55,537 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-31 17:50:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-31 17:50:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-31 17:50:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2019-08-31 17:50:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2019-08-31 17:50:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-31 17:50:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-31 17:50:55,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-31 17:50:55,732 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-31 17:50:55,732 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-31 17:50:55,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 05:50:55 BoogieIcfgContainer [2019-08-31 17:50:55,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-31 17:50:55,744 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-08-31 17:50:55,744 INFO L271 PluginConnector]: Initializing Sifa... [2019-08-31 17:50:55,745 INFO L275 PluginConnector]: Sifa initialized [2019-08-31 17:50:55,746 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 05:50:55" (1/1) ... [2019-08-31 17:50:55,806 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-31 17:50:55,806 INFO L169 IcfgInterpreter]: Building call graph [2019-08-31 17:50:55,822 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-08-31 17:50:55,829 INFO L168 Benchmark]: Toolchain (without parser) took 744.89 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 87.5 MB in the beginning and 161.3 MB in the end (delta: -73.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-31 17:50:55,831 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 132.6 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-31 17:50:55,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.45 ms. Allocated memory is still 132.6 MB. Free memory was 87.3 MB in the beginning and 78.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-08-31 17:50:55,835 INFO L168 Benchmark]: Boogie Preprocessor took 109.60 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 78.0 MB in the beginning and 176.6 MB in the end (delta: -98.6 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2019-08-31 17:50:55,837 INFO L168 Benchmark]: RCFGBuilder took 251.67 ms. Allocated memory is still 199.8 MB. Free memory was 176.6 MB in the beginning and 163.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2019-08-31 17:50:55,838 INFO L168 Benchmark]: Sifa took 81.01 ms. Allocated memory is still 199.8 MB. Free memory was 163.7 MB in the beginning and 161.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-08-31 17:50:55,849 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 132.6 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 290.45 ms. Allocated memory is still 132.6 MB. Free memory was 87.3 MB in the beginning and 78.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.60 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 78.0 MB in the beginning and 176.6 MB in the end (delta: -98.6 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 251.67 ms. Allocated memory is still 199.8 MB. Free memory was 176.6 MB in the beginning and 163.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * Sifa took 81.01 ms. Allocated memory is still 199.8 MB. Free memory was 163.7 MB in the beginning and 161.3 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...