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/sum_non_eq-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:34:29,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:34:29,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:34:29,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-11 16:34:29,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:34:29,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:34:29,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:34:29,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:34:29,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:34:29,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:34:29,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:34:29,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:34:29,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:34:29,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:34:29,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:34:29,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:34:29,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 16:34:29,517 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 16:34:29,543 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:34:29,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:34:29,544 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:34:29,544 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:34:29,545 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:34:29,545 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:34:29,545 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:34:29,546 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:34:29,546 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:34:29,546 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:34:29,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:34:29,548 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:34:29,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:34:29,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:34:29,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:34:29,549 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:34:29,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:34:29,550 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:34:29,550 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:34:29,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:34:29,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:34:29,550 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:34:29,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:34:29,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:34:29,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:34:29,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:34:29,551 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:34:29,552 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:34:29,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:34:29,552 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:34:29,581 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:34:29,592 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:34:29,596 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:34:29,598 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:34:29,598 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:34:29,600 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_non_eq-2.c [2019-09-11 16:34:29,668 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dea5701d7/2537169d175a438aa6e2891f6c34dcdb/FLAG3c0f98e1f [2019-09-11 16:34:30,096 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:34:30,097 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_non_eq-2.c [2019-09-11 16:34:30,102 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dea5701d7/2537169d175a438aa6e2891f6c34dcdb/FLAG3c0f98e1f [2019-09-11 16:34:30,476 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dea5701d7/2537169d175a438aa6e2891f6c34dcdb [2019-09-11 16:34:30,485 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:34:30,487 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:34:30,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:34:30,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:34:30,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:34:30,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:34:30" (1/1) ... [2019-09-11 16:34:30,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6582f902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:30, skipping insertion in model container [2019-09-11 16:34:30,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:34:30" (1/1) ... [2019-09-11 16:34:30,504 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:34:30,521 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:34:30,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:34:30,732 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:34:30,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:34:30,764 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:34:30,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:30 WrapperNode [2019-09-11 16:34:30,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:34:30,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:34:30,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:34:30,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:34:30,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:30" (1/1) ... [2019-09-11 16:34:30,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:30" (1/1) ... [2019-09-11 16:34:30,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:30" (1/1) ... [2019-09-11 16:34:30,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:30" (1/1) ... [2019-09-11 16:34:30,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:30" (1/1) ... [2019-09-11 16:34:30,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:30" (1/1) ... [2019-09-11 16:34:30,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:30" (1/1) ... [2019-09-11 16:34:30,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:34:30,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:34:30,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:34:30,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:34:30,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:30" (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 16:34:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:34:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:34:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2019-09-11 16:34:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:34:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-11 16:34:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:34:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2019-09-11 16:34:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:34:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:34:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:34:31,089 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:34:31,091 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-11 16:34:31,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:34:31 BoogieIcfgContainer [2019-09-11 16:34:31,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:34:31,095 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:34:31,095 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:34:31,095 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:34:31,096 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:34:31" (1/1) ... [2019-09-11 16:34:31,130 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:34:31,238 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-11 16:34:31,279 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:34:31,300 INFO L272 AbstractInterpreter]: Visited 22 different actions 41 times. Never merged. Never widened. Performed 43 root evaluator evaluations with a maximum evaluation depth of 6. Performed 43 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 4 fixpoints after 2 different actions. Largest state had 7 variables. [2019-09-11 16:34:31,300 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:34:31,303 INFO L168 Benchmark]: Toolchain (without parser) took 815.34 ms. Allocated memory was 143.7 MB in the beginning and 202.4 MB in the end (delta: 58.7 MB). Free memory was 91.6 MB in the beginning and 162.0 MB in the end (delta: -70.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-11 16:34:31,304 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 143.7 MB. Free memory is still 109.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-11 16:34:31,305 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.67 ms. Allocated memory is still 143.7 MB. Free memory was 91.6 MB in the beginning and 82.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-09-11 16:34:31,306 INFO L168 Benchmark]: Boogie Preprocessor took 118.50 ms. Allocated memory was 143.7 MB in the beginning and 202.4 MB in the end (delta: 58.7 MB). Free memory was 82.6 MB in the beginning and 180.8 MB in the end (delta: -98.3 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2019-09-11 16:34:31,307 INFO L168 Benchmark]: RCFGBuilder took 208.78 ms. Allocated memory is still 202.4 MB. Free memory was 180.8 MB in the beginning and 169.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-09-11 16:34:31,308 INFO L168 Benchmark]: Abstract Interpretation took 205.79 ms. Allocated memory is still 202.4 MB. Free memory was 169.6 MB in the beginning and 162.0 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB. [2019-09-11 16:34:31,312 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 143.7 MB. Free memory is still 109.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 276.67 ms. Allocated memory is still 143.7 MB. Free memory was 91.6 MB in the beginning and 82.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.50 ms. Allocated memory was 143.7 MB in the beginning and 202.4 MB in the end (delta: 58.7 MB). Free memory was 82.6 MB in the beginning and 180.8 MB in the end (delta: -98.3 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 208.78 ms. Allocated memory is still 202.4 MB. Free memory was 180.8 MB in the beginning and 169.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 205.79 ms. Allocated memory is still 202.4 MB. Free memory was 169.6 MB in the beginning and 162.0 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 17]: 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: [L13] unsigned int a = __VERIFIER_nondet_uint(); [L14] unsigned int b = __VERIFIER_nondet_uint(); [L15] CALL, EXPR sum(a, b) [L5] COND TRUE n == 0 [L6] return m; [L15] RET, EXPR sum(a, b) [L15] unsigned int result = sum(a, b); [L16] COND TRUE result != a + b [L17] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...