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/nla-digbench/fermat2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:28:05,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:28:05,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:28:05,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-16 17:28:05,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:28:05,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:28:05,104 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:28:05,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:28:05,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:28:05,108 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:28:05,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:28:05,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:28:05,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:28:05,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:28:05,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:28:05,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:28:05,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-16 17:28:05,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:28:05,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:28:05,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:28:05,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:28:05,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:28:05,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:28:05,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:28:05,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:28:05,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:28:05,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:28:05,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:28:05,138 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 [2019-09-16 17:28:05,161 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:28:05,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:28:05,162 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:28:05,162 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:28:05,163 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:28:05,163 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:28:05,163 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:28:05,167 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:28:05,167 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:28:05,168 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:28:05,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:28:05,170 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:28:05,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:28:05,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:28:05,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:28:05,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:28:05,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:28:05,171 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:28:05,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:28:05,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:28:05,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:28:05,172 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:28:05,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:28:05,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:28:05,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:28:05,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:28:05,173 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:28:05,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:28:05,173 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:28:05,174 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:28:05,218 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:28:05,229 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:28:05,233 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:28:05,235 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:28:05,237 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:28:05,238 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/fermat2.c [2019-09-16 17:28:05,298 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/baada1760/ad7dff13c320438cba373cfbd8fcc690/FLAG10f2ec390 [2019-09-16 17:28:05,782 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:28:05,783 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/fermat2.c [2019-09-16 17:28:05,790 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/baada1760/ad7dff13c320438cba373cfbd8fcc690/FLAG10f2ec390 [2019-09-16 17:28:06,178 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/baada1760/ad7dff13c320438cba373cfbd8fcc690 [2019-09-16 17:28:06,186 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:28:06,188 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:28:06,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:28:06,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:28:06,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:28:06,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:28:06" (1/1) ... [2019-09-16 17:28:06,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d044f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:28:06, skipping insertion in model container [2019-09-16 17:28:06,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:28:06" (1/1) ... [2019-09-16 17:28:06,206 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:28:06,227 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:28:06,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:28:06,473 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:28:06,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:28:06,527 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:28:06,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:28:06 WrapperNode [2019-09-16 17:28:06,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:28:06,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:28:06,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:28:06,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:28:06,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:28:06" (1/1) ... [2019-09-16 17:28:06,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:28:06" (1/1) ... [2019-09-16 17:28:06,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:28:06" (1/1) ... [2019-09-16 17:28:06,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:28:06" (1/1) ... [2019-09-16 17:28:06,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:28:06" (1/1) ... [2019-09-16 17:28:06,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:28:06" (1/1) ... [2019-09-16 17:28:06,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:28:06" (1/1) ... [2019-09-16 17:28:06,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:28:06,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:28:06,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:28:06,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:28:06,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:28:06" (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 [2019-09-16 17:28:06,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:28:06,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:28:06,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-16 17:28:06,723 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:28:06,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:28:06,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-16 17:28:06,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-16 17:28:06,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-16 17:28:06,724 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:28:06,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:28:06,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:28:06,896 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:28:06,896 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-16 17:28:06,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:28:06 BoogieIcfgContainer [2019-09-16 17:28:06,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:28:06,899 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-16 17:28:06,899 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-16 17:28:06,899 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-16 17:28:06,900 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:28:06" (1/1) ... [2019-09-16 17:28:06,924 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:28:07,017 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-16 17:28:08,459 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-16 17:28:08,484 INFO L272 AbstractInterpreter]: Visited 26 different actions 162 times. Merged at 9 different actions 40 times. Widened at 1 different actions 1 times. Performed 215 root evaluator evaluations with a maximum evaluation depth of 14. Performed 215 inverse root evaluator evaluations with a maximum inverse evaluation depth of 14. Found 12 fixpoints after 3 different actions. Largest state had 8 variables. [2019-09-16 17:28:08,484 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-16 17:28:08,488 INFO L168 Benchmark]: Toolchain (without parser) took 2298.59 ms. Allocated memory was 141.0 MB in the beginning and 261.1 MB in the end (delta: 120.1 MB). Free memory was 88.5 MB in the beginning and 187.5 MB in the end (delta: -98.9 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:28:08,490 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 141.0 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. [2019-09-16 17:28:08,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.85 ms. Allocated memory is still 141.0 MB. Free memory was 88.1 MB in the beginning and 78.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:28:08,492 INFO L168 Benchmark]: Boogie Preprocessor took 138.19 ms. Allocated memory was 141.0 MB in the beginning and 199.2 MB in the end (delta: 58.2 MB). Free memory was 78.5 MB in the beginning and 176.0 MB in the end (delta: -97.6 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:28:08,493 INFO L168 Benchmark]: RCFGBuilder took 230.59 ms. Allocated memory is still 199.2 MB. Free memory was 176.0 MB in the beginning and 164.4 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:28:08,494 INFO L168 Benchmark]: Abstract Interpretation took 1586.08 ms. Allocated memory was 199.2 MB in the beginning and 261.1 MB in the end (delta: 61.9 MB). Free memory was 164.4 MB in the beginning and 187.5 MB in the end (delta: -23.0 MB). Peak memory consumption was 38.8 MB. Max. memory is 7.1 GB. [2019-09-16 17:28:08,499 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 141.0 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 339.85 ms. Allocated memory is still 141.0 MB. Free memory was 88.1 MB in the beginning and 78.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 138.19 ms. Allocated memory was 141.0 MB in the beginning and 199.2 MB in the end (delta: 58.2 MB). Free memory was 78.5 MB in the beginning and 176.0 MB in the end (delta: -97.6 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 230.59 ms. Allocated memory is still 199.2 MB. Free memory was 176.0 MB in the beginning and 164.4 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1586.08 ms. Allocated memory was 199.2 MB in the beginning and 261.1 MB in the end (delta: 61.9 MB). Free memory was 164.4 MB in the beginning and 187.5 MB in the end (delta: -23.0 MB). Peak memory consumption was 38.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 9]: 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: [L15] int A, R; [L16] int u, v, r; [L17] A = __VERIFIER_nondet_double() [L18] R = __VERIFIER_nondet_double() [L24] u = 2 * R + 1 [L25] v = 1 [L26] r = R * R - A [L28] COND TRUE 1 [L29] CALL __VERIFIER_assert(4*(A+r) == u*u - v*v - 2*u + 2*v) [L7] COND TRUE !(cond) [L9] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...