java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/recursive/Fibonacci05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:23:58,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:23:58,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:23:58,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-11 16:23:58,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:23:58,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:23:58,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:23:58,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:23:58,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:23:58,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:23:58,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:23:58,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:23:58,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:23:58,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:23:58,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:23:58,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:23:58,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 16:23:58,918 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-11 16:23:58,946 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:23:58,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:23:58,947 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:23:58,947 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:23:58,948 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:23:58,948 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:23:58,948 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:23:58,949 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:23:58,949 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:23:58,949 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:23:58,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:23:58,952 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:23:58,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:23:58,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:23:58,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:23:58,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:23:58,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:23:58,953 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:23:58,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:23:58,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:23:58,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:23:58,954 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:23:58,954 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:23:58,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:23:58,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:23:58,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:23:58,955 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:23:58,955 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:23:58,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:23:58,956 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:23:59,008 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:23:59,021 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:23:59,024 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:23:59,025 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:23:59,026 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:23:59,026 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Fibonacci05.c [2019-09-11 16:23:59,091 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c71fa0cf/3cfe7a44ed0a4f42819f8023451dfdab/FLAGaa5cb3fc9 [2019-09-11 16:23:59,557 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:23:59,558 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/Fibonacci05.c [2019-09-11 16:23:59,564 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c71fa0cf/3cfe7a44ed0a4f42819f8023451dfdab/FLAGaa5cb3fc9 [2019-09-11 16:23:59,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c71fa0cf/3cfe7a44ed0a4f42819f8023451dfdab [2019-09-11 16:23:59,944 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:23:59,946 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:23:59,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:23:59,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:23:59,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:23:59,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:23:59" (1/1) ... [2019-09-11 16:23:59,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57dcab27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:23:59, skipping insertion in model container [2019-09-11 16:23:59,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:23:59" (1/1) ... [2019-09-11 16:23:59,962 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:23:59,982 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:24:00,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:24:00,177 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:24:00,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:24:00,204 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:24:00,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:00 WrapperNode [2019-09-11 16:24:00,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:24:00,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:24:00,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:24:00,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:24:00,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:00" (1/1) ... [2019-09-11 16:24:00,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:00" (1/1) ... [2019-09-11 16:24:00,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:00" (1/1) ... [2019-09-11 16:24:00,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:00" (1/1) ... [2019-09-11 16:24:00,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:00" (1/1) ... [2019-09-11 16:24:00,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:00" (1/1) ... [2019-09-11 16:24:00,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:00" (1/1) ... [2019-09-11 16:24:00,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:24:00,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:24:00,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:24:00,318 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:24:00,319 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:24:00,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:24:00,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:24:00,370 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2019-09-11 16:24:00,370 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:24:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:24:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-11 16:24:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2019-09-11 16:24:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:24:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:24:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:24:00,549 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:24:00,549 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-11 16:24:00,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:24:00 BoogieIcfgContainer [2019-09-11 16:24:00,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:24:00,551 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:24:00,552 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:24:00,552 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:24:00,553 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:24:00" (1/1) ... [2019-09-11 16:24:00,578 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:24:02,032 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:24:02,057 INFO L272 AbstractInterpreter]: Visited 27 different actions 6508 times. Merged at 12 different actions 1663 times. Never widened. Performed 7997 root evaluator evaluations with a maximum evaluation depth of 4. Performed 7997 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 711 fixpoints after 6 different actions. Largest state had 5 variables. [2019-09-11 16:24:02,058 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:24:02,062 INFO L168 Benchmark]: Toolchain (without parser) took 2113.86 ms. Allocated memory was 135.3 MB in the beginning and 230.2 MB in the end (delta: 94.9 MB). Free memory was 92.0 MB in the beginning and 104.1 MB in the end (delta: -12.0 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. [2019-09-11 16:24:02,064 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 135.3 MB. Free memory is still 109.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-11 16:24:02,065 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.70 ms. Allocated memory is still 135.3 MB. Free memory was 91.6 MB in the beginning and 82.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-09-11 16:24:02,068 INFO L168 Benchmark]: Boogie Preprocessor took 111.30 ms. Allocated memory was 135.3 MB in the beginning and 201.3 MB in the end (delta: 66.1 MB). Free memory was 82.4 MB in the beginning and 178.4 MB in the end (delta: -95.9 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2019-09-11 16:24:02,070 INFO L168 Benchmark]: RCFGBuilder took 233.52 ms. Allocated memory is still 201.3 MB. Free memory was 178.4 MB in the beginning and 166.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-09-11 16:24:02,071 INFO L168 Benchmark]: Abstract Interpretation took 1506.41 ms. Allocated memory was 201.3 MB in the beginning and 230.2 MB in the end (delta: 28.8 MB). Free memory was 166.9 MB in the beginning and 104.1 MB in the end (delta: 62.8 MB). Peak memory consumption was 91.6 MB. Max. memory is 7.1 GB. [2019-09-11 16:24:02,081 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 135.3 MB. Free memory is still 109.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 258.70 ms. Allocated memory is still 135.3 MB. Free memory was 91.6 MB in the beginning and 82.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.30 ms. Allocated memory was 135.3 MB in the beginning and 201.3 MB in the end (delta: 66.1 MB). Free memory was 82.4 MB in the beginning and 178.4 MB in the end (delta: -95.9 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 233.52 ms. Allocated memory is still 201.3 MB. Free memory was 178.4 MB in the beginning and 166.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1506.41 ms. Allocated memory was 201.3 MB in the beginning and 230.2 MB in the end (delta: 28.8 MB). Free memory was 166.9 MB in the beginning and 104.1 MB in the end (delta: 62.8 MB). Peak memory consumption was 91.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 31]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: abstract domain could reach this error location. Possible FailurePath: [L26] int x = __VERIFIER_nondet_int(); [L27] CALL, EXPR fibonacci(x) [L15] COND TRUE n < 1 [L16] return 0; [L27] RET, EXPR fibonacci(x) [L27] int result = fibonacci(x); [L28] COND FALSE !(x < 8 || result >= 34) [L31] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...