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-simple/id2_i5_o5-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:33:47,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:33:47,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:33:47,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-11 16:33:47,371 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 16:33:47,406 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:33:47,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:33:47,407 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:33:47,407 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:33:47,410 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:33:47,410 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:33:47,410 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:33:47,411 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:33:47,411 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:33:47,411 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:33:47,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:33:47,412 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:33:47,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:33:47,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:33:47,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:33:47,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:33:47,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:33:47,415 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:33:47,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:33:47,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:33:47,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:33:47,416 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:33:47,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:33:47,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:33:47,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:33:47,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:33:47,417 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:33:47,419 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:33:47,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:33:47,419 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:33:47,472 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:33:47,491 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:33:47,495 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:33:47,496 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:33:47,497 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:33:47,498 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id2_i5_o5-2.c [2019-09-11 16:33:47,566 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da2b6d0a8/a19def6349054a949f222d467dde0035/FLAGf7952d8c6 [2019-09-11 16:33:47,994 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:33:47,995 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/id2_i5_o5-2.c [2019-09-11 16:33:48,002 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da2b6d0a8/a19def6349054a949f222d467dde0035/FLAGf7952d8c6 [2019-09-11 16:33:48,356 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da2b6d0a8/a19def6349054a949f222d467dde0035 [2019-09-11 16:33:48,366 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:33:48,367 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:33:48,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:33:48,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:33:48,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:33:48,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:33:48" (1/1) ... [2019-09-11 16:33:48,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df7a19b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:33:48, skipping insertion in model container [2019-09-11 16:33:48,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:33:48" (1/1) ... [2019-09-11 16:33:48,386 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:33:48,404 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:33:48,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:33:48,556 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:33:48,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:33:48,592 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:33:48,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:33:48 WrapperNode [2019-09-11 16:33:48,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:33:48,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:33:48,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:33:48,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:33:48,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:33:48" (1/1) ... [2019-09-11 16:33:48,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:33:48" (1/1) ... [2019-09-11 16:33:48,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:33:48" (1/1) ... [2019-09-11 16:33:48,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:33:48" (1/1) ... [2019-09-11 16:33:48,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:33:48" (1/1) ... [2019-09-11 16:33:48,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:33:48" (1/1) ... [2019-09-11 16:33:48,714 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:33:48" (1/1) ... [2019-09-11 16:33:48,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:33:48,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:33:48,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:33:48,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:33:48,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:33:48" (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 16:33:48,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:33:48,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:33:48,789 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2019-09-11 16:33:48,789 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2019-09-11 16:33:48,789 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:33:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-11 16:33:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:33:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure id [2019-09-11 16:33:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2019-09-11 16:33:48,790 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:33:48,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:33:48,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:33:49,027 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:33:49,027 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-11 16:33:49,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:33:49 BoogieIcfgContainer [2019-09-11 16:33:49,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:33:49,029 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:33:49,029 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:33:49,030 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:33:49,031 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:33:49" (1/1) ... [2019-09-11 16:33:49,059 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:33:49,303 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:33:49,328 INFO L272 AbstractInterpreter]: Visited 29 different actions 149 times. Merged at 10 different actions 70 times. Widened at 2 different actions 4 times. Performed 228 root evaluator evaluations with a maximum evaluation depth of 4. Performed 228 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 4 fixpoints after 2 different actions. Largest state had 4 variables. [2019-09-11 16:33:49,328 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:33:49,331 INFO L168 Benchmark]: Toolchain (without parser) took 962.50 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 96.8 MB in the beginning and 157.8 MB in the end (delta: -61.0 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-09-11 16:33:49,332 INFO L168 Benchmark]: CDTParser took 0.98 ms. Allocated memory is still 140.0 MB. Free memory was 114.5 MB in the beginning and 114.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 16:33:49,333 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.72 ms. Allocated memory is still 140.0 MB. Free memory was 96.5 MB in the beginning and 87.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-09-11 16:33:49,334 INFO L168 Benchmark]: Boogie Preprocessor took 122.23 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 87.3 MB in the beginning and 180.5 MB in the end (delta: -93.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-09-11 16:33:49,335 INFO L168 Benchmark]: RCFGBuilder took 312.59 ms. Allocated memory is still 203.4 MB. Free memory was 180.5 MB in the beginning and 169.5 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-09-11 16:33:49,336 INFO L168 Benchmark]: Abstract Interpretation took 298.76 ms. Allocated memory is still 203.4 MB. Free memory was 169.5 MB in the beginning and 157.8 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2019-09-11 16:33:49,341 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.98 ms. Allocated memory is still 140.0 MB. Free memory was 114.5 MB in the beginning and 114.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 224.72 ms. Allocated memory is still 140.0 MB. Free memory was 96.5 MB in the beginning and 87.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.23 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 87.3 MB in the beginning and 180.5 MB in the end (delta: -93.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 312.59 ms. Allocated memory is still 203.4 MB. Free memory was 180.5 MB in the beginning and 169.5 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 298.76 ms. Allocated memory is still 203.4 MB. Free memory was 169.5 MB in the beginning and 157.8 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 21]: 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: [L18] int input = 5; [L19] CALL, EXPR id(input) [L8] COND FALSE !(x==0) [L9] CALL, EXPR id2(x-1) [L13] COND FALSE !(x==0) [L14] CALL, EXPR id(x-1) [L8] COND FALSE !(x==0) [L9] CALL, EXPR id2(x-1) [L13] COND FALSE !(x==0) [L14] CALL, EXPR id(x-1) [L8] COND FALSE !(x==0) [L9] CALL, EXPR id2(x-1) [L13] COND FALSE !(x==0) [L14] CALL, EXPR id(x-1) [L8] COND TRUE x==0 [L8] return 0; [L14] RET, EXPR id(x-1) [L14] return id(x-1) + 1; [L9] RET, EXPR id2(x-1) [L9] return id2(x-1) + 1; [L14] RET, EXPR id(x-1) [L14] return id(x-1) + 1; [L9] RET, EXPR id2(x-1) [L9] return id2(x-1) + 1; [L14] RET, EXPR id(x-1) [L14] return id(x-1) + 1; [L9] RET, EXPR id2(x-1) [L9] return id2(x-1) + 1; [L19] RET, EXPR id(input) [L19] int result = id(input); [L20] COND TRUE result != 5 [L21] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...