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/McCarthy91-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:24:01,309 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:24:01,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:24:01,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-11 16:24:01,359 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:24:01,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:24:01,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:24:01,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:24:01,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:24:01,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:24:01,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:24:01,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:24:01,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:24:01,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:24:01,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:24:01,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:24:01,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 16:24:01,409 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 16:24:01,450 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:24:01,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:24:01,451 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:24:01,451 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:24:01,452 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:24:01,455 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:24:01,456 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:24:01,456 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:24:01,456 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:24:01,456 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:24:01,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:24:01,457 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:24:01,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:24:01,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:24:01,458 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:24:01,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:24:01,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:24:01,459 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:24:01,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:24:01,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:24:01,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:24:01,462 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:24:01,462 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:24:01,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:24:01,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:24:01,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:24:01,465 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:24:01,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:24:01,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:24:01,466 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:24:01,520 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:24:01,536 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:24:01,542 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:24:01,543 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:24:01,544 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:24:01,545 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/McCarthy91-2.c [2019-09-11 16:24:01,627 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06796fe5c/050a909d25c346fc99ce9d53ac9da6a5/FLAGd693ebf60 [2019-09-11 16:24:02,132 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:24:02,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/McCarthy91-2.c [2019-09-11 16:24:02,139 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06796fe5c/050a909d25c346fc99ce9d53ac9da6a5/FLAGd693ebf60 [2019-09-11 16:24:02,531 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06796fe5c/050a909d25c346fc99ce9d53ac9da6a5 [2019-09-11 16:24:02,541 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:24:02,542 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:24:02,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:24:02,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:24:02,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:24:02,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:24:02" (1/1) ... [2019-09-11 16:24:02,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5af60bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:02, skipping insertion in model container [2019-09-11 16:24:02,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:24:02" (1/1) ... [2019-09-11 16:24:02,563 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:24:02,582 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:24:02,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:24:02,785 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:24:02,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:24:02,814 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:24:02,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:02 WrapperNode [2019-09-11 16:24:02,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:24:02,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:24:02,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:24:02,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:24:02,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:02" (1/1) ... [2019-09-11 16:24:02,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:02" (1/1) ... [2019-09-11 16:24:02,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:02" (1/1) ... [2019-09-11 16:24:02,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:02" (1/1) ... [2019-09-11 16:24:02,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:02" (1/1) ... [2019-09-11 16:24:02,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:02" (1/1) ... [2019-09-11 16:24:02,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:02" (1/1) ... [2019-09-11 16:24:02,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:24:02,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:24:02,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:24:02,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:24:02,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:24:02" (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 16:24:02,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:24:02,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:24:02,988 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2019-09-11 16:24:02,988 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:24:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:24:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-11 16:24:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2019-09-11 16:24:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:24:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:24:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:24:03,170 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:24:03,171 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-11 16:24:03,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:24:03 BoogieIcfgContainer [2019-09-11 16:24:03,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:24:03,173 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:24:03,173 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:24:03,174 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:24:03,174 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:24:03" (1/1) ... [2019-09-11 16:24:03,206 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:24:03,390 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:24:03,413 INFO L272 AbstractInterpreter]: Visited 25 different actions 165 times. Merged at 2 different actions 16 times. Never widened. Performed 169 root evaluator evaluations with a maximum evaluation depth of 6. Performed 169 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 12 fixpoints after 5 different actions. Largest state had 5 variables. [2019-09-11 16:24:03,413 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:24:03,416 INFO L168 Benchmark]: Toolchain (without parser) took 872.87 ms. Allocated memory was 139.5 MB in the beginning and 196.6 MB in the end (delta: 57.1 MB). Free memory was 87.4 MB in the beginning and 152.7 MB in the end (delta: -65.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-11 16:24:03,418 INFO L168 Benchmark]: CDTParser took 1.19 ms. Allocated memory is still 139.5 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 16:24:03,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.35 ms. Allocated memory is still 139.5 MB. Free memory was 87.2 MB in the beginning and 78.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-09-11 16:24:03,420 INFO L168 Benchmark]: Boogie Preprocessor took 118.33 ms. Allocated memory was 139.5 MB in the beginning and 196.6 MB in the end (delta: 57.1 MB). Free memory was 78.2 MB in the beginning and 174.1 MB in the end (delta: -96.0 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2019-09-11 16:24:03,421 INFO L168 Benchmark]: RCFGBuilder took 238.88 ms. Allocated memory is still 196.6 MB. Free memory was 174.1 MB in the beginning and 162.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2019-09-11 16:24:03,422 INFO L168 Benchmark]: Abstract Interpretation took 240.33 ms. Allocated memory is still 196.6 MB. Free memory was 162.2 MB in the beginning and 152.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-09-11 16:24:03,427 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.19 ms. Allocated memory is still 139.5 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 271.35 ms. Allocated memory is still 139.5 MB. Free memory was 87.2 MB in the beginning and 78.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.33 ms. Allocated memory was 139.5 MB in the beginning and 196.6 MB in the end (delta: 57.1 MB). Free memory was 78.2 MB in the beginning and 174.1 MB in the end (delta: -96.0 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 238.88 ms. Allocated memory is still 196.6 MB. Free memory was 174.1 MB in the beginning and 162.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 240.33 ms. Allocated memory is still 196.6 MB. Free memory was 162.2 MB in the beginning and 152.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 30]: 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: [L25] int x = __VERIFIER_nondet_int(); [L26] CALL, EXPR f91(x) [L16] COND TRUE x > 100 [L17] return x -10; [L26] RET, EXPR f91(x) [L26] int result = f91(x); [L27] COND FALSE !(result == 91 || x > 101 && result == x - 10) [L30] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...