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/gcd01-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:24:04,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:24:04,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:24:04,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-11 16:24:04,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:24:04,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:24:04,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:24:04,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:24:04,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:24:04,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:24:04,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:24:04,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:24:04,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:24:04,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:24:04,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:24:04,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:24:04,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 16:24:04,490 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-11 16:24:04,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-11 16:24:04,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-11 16:24:04,492 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-11 16:24:04,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-11 16:24:04,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-11 16:24:04,496 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-11 16:24:04,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-11 16:24:04,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 16:24:04,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 16:24:04,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 16:24:04,499 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 16:24:04,527 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:24:04,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:24:04,528 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:24:04,528 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:24:04,529 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:24:04,529 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:24:04,529 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:24:04,529 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:24:04,529 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:24:04,530 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:24:04,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:24:04,531 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:24:04,531 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:24:04,531 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:24:04,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:24:04,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:24:04,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:24:04,532 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:24:04,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:24:04,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:24:04,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:24:04,533 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:24:04,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:24:04,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:24:04,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:24:04,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:24:04,534 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:24:04,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:24:04,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:24:04,534 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:24:04,565 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:24:04,581 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:24:04,588 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:24:04,590 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:24:04,590 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:24:04,591 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/gcd01-1.c [2019-09-11 16:24:04,647 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ab71bf08/0b4294f16df04807a7b3e90559c67b9f/FLAGb5a9a3742 [2019-09-11 16:24:05,075 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:24:05,075 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/gcd01-1.c [2019-09-11 16:24:05,082 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ab71bf08/0b4294f16df04807a7b3e90559c67b9f/FLAGb5a9a3742 [2019-09-11 16:24:05,485 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ab71bf08/0b4294f16df04807a7b3e90559c67b9f [2019-09-11 16:24:05,494 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:24:05,495 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:24:05,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:24:05,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:24:05,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:24:05,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:24:05" (1/1) ... [2019-09-11 16:24:05,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@350286e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:05, skipping insertion in model container [2019-09-11 16:24:05,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:24:05" (1/1) ... [2019-09-11 16:24:05,511 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:24:05,527 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:24:05,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:24:05,687 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:24:05,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:24:05,721 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:24:05,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:05 WrapperNode [2019-09-11 16:24:05,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:24:05,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:24:05,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:24:05,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:24:05,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:05" (1/1) ... [2019-09-11 16:24:05,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:05" (1/1) ... [2019-09-11 16:24:05,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:05" (1/1) ... [2019-09-11 16:24:05,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:05" (1/1) ... [2019-09-11 16:24:05,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:05" (1/1) ... [2019-09-11 16:24:05,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:05" (1/1) ... [2019-09-11 16:24:05,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:05" (1/1) ... [2019-09-11 16:24:05,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:24:05,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:24:05,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:24:05,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:24:05,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:05" (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 16:24:05,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:24:05,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:24:05,901 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2019-09-11 16:24:05,901 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:24:05,901 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:24:05,901 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-11 16:24:05,902 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2019-09-11 16:24:05,902 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:24:05,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:24:05,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:24:06,150 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:24:06,151 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-11 16:24:06,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:24:06 BoogieIcfgContainer [2019-09-11 16:24:06,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:24:06,153 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:24:06,154 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:24:06,154 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:24:06,155 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:24:06" (1/1) ... [2019-09-11 16:24:06,203 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:24:06,948 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:24:06,978 INFO L272 AbstractInterpreter]: Visited 33 different actions 657 times. Merged at 11 different actions 194 times. Never widened. Performed 1085 root evaluator evaluations with a maximum evaluation depth of 6. Performed 1085 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 113 fixpoints after 10 different actions. Largest state had 7 variables. [2019-09-11 16:24:06,979 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:24:06,985 INFO L168 Benchmark]: Toolchain (without parser) took 1486.18 ms. Allocated memory was 133.7 MB in the beginning and 201.3 MB in the end (delta: 67.6 MB). Free memory was 88.6 MB in the beginning and 120.9 MB in the end (delta: -32.3 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. [2019-09-11 16:24:06,987 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 133.7 MB. Free memory was 107.0 MB in the beginning and 106.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 16:24:06,988 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.34 ms. Allocated memory is still 133.7 MB. Free memory was 88.4 MB in the beginning and 79.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-09-11 16:24:06,990 INFO L168 Benchmark]: Boogie Preprocessor took 118.13 ms. Allocated memory was 133.7 MB in the beginning and 201.3 MB in the end (delta: 67.6 MB). Free memory was 79.1 MB in the beginning and 178.3 MB in the end (delta: -99.1 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-09-11 16:24:06,993 INFO L168 Benchmark]: RCFGBuilder took 311.36 ms. Allocated memory is still 201.3 MB. Free memory was 178.3 MB in the beginning and 165.9 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2019-09-11 16:24:06,995 INFO L168 Benchmark]: Abstract Interpretation took 826.02 ms. Allocated memory is still 201.3 MB. Free memory was 165.3 MB in the beginning and 120.9 MB in the end (delta: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 7.1 GB. [2019-09-11 16:24:07,007 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 133.7 MB. Free memory was 107.0 MB in the beginning and 106.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 226.34 ms. Allocated memory is still 133.7 MB. Free memory was 88.4 MB in the beginning and 79.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.13 ms. Allocated memory was 133.7 MB in the beginning and 201.3 MB in the end (delta: 67.6 MB). Free memory was 79.1 MB in the beginning and 178.3 MB in the end (delta: -99.1 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 311.36 ms. Allocated memory is still 201.3 MB. Free memory was 178.3 MB in the beginning and 165.9 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 826.02 ms. Allocated memory is still 201.3 MB. Free memory was 165.3 MB in the beginning and 120.9 MB in the end (delta: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 39]: 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: [L29] int m = __VERIFIER_nondet_int(); [L30] COND FALSE !(m <= 0 || m > 2147483647) [L33] int n = __VERIFIER_nondet_int(); [L34] COND FALSE !(n <= 0 || n > 2147483647) [L37] CALL, EXPR gcd(m, n) [L16] COND FALSE !(y1 <= 0 || y2 <= 0) [L19] COND FALSE !(y1 == y2) [L22] COND TRUE y1 > y2 [L23] CALL, EXPR gcd(y1 - y2, y2) [L16] COND TRUE y1 <= 0 || y2 <= 0 [L17] return 0; [L23] RET, EXPR gcd(y1 - y2, y2) [L23] return gcd(y1 - y2, y2); [L37] RET, EXPR gcd(m, n) [L37] int z = gcd(m, n); [L38] COND TRUE z < 1 && m > 0 && n > 0 [L39] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...