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/Fibonacci04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:23:58,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:23:58,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:23:58,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-11 16:23:58,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-11 16:23:58,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-11 16:23:58,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-11 16:23:58,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-11 16:23:58,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-11 16:23:58,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-11 16:23:58,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-11 16:23:58,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-11 16:23:58,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:23:58,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:23:58,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:23:58,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:23:58,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:23:58,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:23:58,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:23:58,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:23:58,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:23:58,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:23:58,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:23:58,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:23:58,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 16:23:58,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 16:23:58,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 16:23:58,731 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 16:23:58,732 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 16:23:58,746 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:23:58,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:23:58,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:23:58,746 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:23:58,747 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:23:58,747 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:23:58,747 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:23:58,748 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:23:58,748 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:23:58,748 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:23:58,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:23:58,749 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:23:58,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:23:58,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:23:58,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:23:58,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:23:58,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:23:58,750 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:23:58,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:23:58,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:23:58,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:23:58,751 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:23:58,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:23:58,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:23:58,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:23:58,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:23:58,752 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:23:58,752 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:23:58,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:23:58,752 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:23:58,779 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:23:58,791 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:23:58,795 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:23:58,796 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:23:58,797 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:23:58,797 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Fibonacci04.c [2019-09-11 16:23:58,855 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/320e6cd6e/3fdbcf4247fa4124b96fcab259cd8af4/FLAGe307c8815 [2019-09-11 16:23:59,306 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:23:59,306 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/Fibonacci04.c [2019-09-11 16:23:59,314 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/320e6cd6e/3fdbcf4247fa4124b96fcab259cd8af4/FLAGe307c8815 [2019-09-11 16:23:59,676 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/320e6cd6e/3fdbcf4247fa4124b96fcab259cd8af4 [2019-09-11 16:23:59,687 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:23:59,688 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:23:59,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:23:59,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:23:59,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:23:59,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:23:59" (1/1) ... [2019-09-11 16:23:59,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@664351b1 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 16:23:59,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:23:59" (1/1) ... [2019-09-11 16:23:59,706 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:23:59,728 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:23:59,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:23:59,953 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:23:59,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:23:59,996 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:23:59,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:23:59 WrapperNode [2019-09-11 16:23:59,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:23:59,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:23:59,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:23:59,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:24:00,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:23:59" (1/1) ... [2019-09-11 16:24:00,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:23:59" (1/1) ... [2019-09-11 16:24:00,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:23:59" (1/1) ... [2019-09-11 16:24:00,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:23:59" (1/1) ... [2019-09-11 16:24:00,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:23:59" (1/1) ... [2019-09-11 16:24:00,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:23:59" (1/1) ... [2019-09-11 16:24:00,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:23:59" (1/1) ... [2019-09-11 16:24:00,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:24:00,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:24:00,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:24:00,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:24:00,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:23:59" (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 16:24:00,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:24:00,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:24:00,187 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2019-09-11 16:24:00,187 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:24:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:24:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-11 16:24:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2019-09-11 16:24:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:24:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:24:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:24:00,364 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:24:00,364 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-11 16:24:00,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:24:00 BoogieIcfgContainer [2019-09-11 16:24:00,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:24:00,366 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:24:00,367 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:24:00,367 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:24:00,368 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 16:24:00,392 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:24:01,805 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:24:01,837 INFO L272 AbstractInterpreter]: Visited 27 different actions 5672 times. Merged at 12 different actions 1470 times. Never widened. Performed 6943 root evaluator evaluations with a maximum evaluation depth of 5. Performed 6943 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 618 fixpoints after 7 different actions. Largest state had 5 variables. [2019-09-11 16:24:01,837 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:24:01,845 INFO L168 Benchmark]: Toolchain (without parser) took 2151.44 ms. Allocated memory was 142.6 MB in the beginning and 233.3 MB in the end (delta: 90.7 MB). Free memory was 90.0 MB in the beginning and 124.0 MB in the end (delta: -34.0 MB). Peak memory consumption was 56.7 MB. Max. memory is 7.1 GB. [2019-09-11 16:24:01,846 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 142.6 MB. Free memory was 107.8 MB in the beginning and 107.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 16:24:01,848 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.81 ms. Allocated memory is still 142.6 MB. Free memory was 89.6 MB in the beginning and 80.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-09-11 16:24:01,852 INFO L168 Benchmark]: Boogie Preprocessor took 122.66 ms. Allocated memory was 142.6 MB in the beginning and 202.4 MB in the end (delta: 59.8 MB). Free memory was 80.1 MB in the beginning and 180.1 MB in the end (delta: -100.0 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-09-11 16:24:01,854 INFO L168 Benchmark]: RCFGBuilder took 244.97 ms. Allocated memory is still 202.4 MB. Free memory was 180.1 MB in the beginning and 169.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2019-09-11 16:24:01,856 INFO L168 Benchmark]: Abstract Interpretation took 1471.26 ms. Allocated memory was 202.4 MB in the beginning and 233.3 MB in the end (delta: 30.9 MB). Free memory was 168.7 MB in the beginning and 124.0 MB in the end (delta: 44.7 MB). Peak memory consumption was 75.6 MB. Max. memory is 7.1 GB. [2019-09-11 16:24:01,870 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 142.6 MB. Free memory was 107.8 MB in the beginning and 107.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 307.81 ms. Allocated memory is still 142.6 MB. Free memory was 89.6 MB in the beginning and 80.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.66 ms. Allocated memory was 142.6 MB in the beginning and 202.4 MB in the end (delta: 59.8 MB). Free memory was 80.1 MB in the beginning and 180.1 MB in the end (delta: -100.0 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 244.97 ms. Allocated memory is still 202.4 MB. Free memory was 180.1 MB in the beginning and 169.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1471.26 ms. Allocated memory was 202.4 MB in the beginning and 233.3 MB in the end (delta: 30.9 MB). Free memory was 168.7 MB in the beginning and 124.0 MB in the end (delta: 44.7 MB). Peak memory consumption was 75.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 33]: 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: [L28] int x = __VERIFIER_nondet_int(); [L29] CALL, EXPR fibonacci(x) [L17] COND TRUE n < 1 [L18] return 0; [L29] RET, EXPR fibonacci(x) [L29] int result = fibonacci(x); [L30] COND FALSE !(x != 5 || result == 3) [L33] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...