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-fea9116 [2019-09-20 13:47:57,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:47:57,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:47:57,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:47:57,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:47:57,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:47:57,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:47:57,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:47:57,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:47:57,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:47:57,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:47:57,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:47:57,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:47:57,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:47:57,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:47:57,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:47:57,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:47:57,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:47:57,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:47:57,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:47:57,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:47:57,085 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:47:57,086 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:47:57,087 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:47:57,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 13:47:57,102 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:47:57,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:47:57,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:47:57,106 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 [2019-09-20 13:47:57,133 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:47:57,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:47:57,134 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:47:57,134 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:47:57,135 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:47:57,135 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:47:57,135 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:47:57,135 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:47:57,136 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:47:57,136 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:47:57,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:47:57,138 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:47:57,138 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:47:57,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:47:57,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:47:57,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:47:57,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:47:57,139 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:47:57,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:47:57,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:47:57,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:47:57,140 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:47:57,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:47:57,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:47:57,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:47:57,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:47:57,142 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:47:57,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:47:57,142 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:47:57,142 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:47:57,198 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:47:57,214 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:47:57,220 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:47:57,221 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:47:57,221 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:47:57,222 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/fermat2.c [2019-09-20 13:47:57,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9422fb1e7/edd982795ca44a31878ae577011bac3a/FLAG56ca6c479 [2019-09-20 13:47:57,728 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:47:57,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/fermat2.c [2019-09-20 13:47:57,735 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9422fb1e7/edd982795ca44a31878ae577011bac3a/FLAG56ca6c479 [2019-09-20 13:47:58,158 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9422fb1e7/edd982795ca44a31878ae577011bac3a [2019-09-20 13:47:58,167 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:47:58,168 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:47:58,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:47:58,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:47:58,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:47:58,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:47:58" (1/1) ... [2019-09-20 13:47:58,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b920088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:58, skipping insertion in model container [2019-09-20 13:47:58,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:47:58" (1/1) ... [2019-09-20 13:47:58,183 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:47:58,200 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:47:58,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:47:58,357 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:47:58,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:47:58,392 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:47:58,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:58 WrapperNode [2019-09-20 13:47:58,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:47:58,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:47:58,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:47:58,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:47:58,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:58" (1/1) ... [2019-09-20 13:47:58,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:58" (1/1) ... [2019-09-20 13:47:58,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:58" (1/1) ... [2019-09-20 13:47:58,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:58" (1/1) ... [2019-09-20 13:47:58,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:58" (1/1) ... [2019-09-20 13:47:58,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:58" (1/1) ... [2019-09-20 13:47:58,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:58" (1/1) ... [2019-09-20 13:47:58,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:47:58,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:47:58,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:47:58,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:47:58,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:58" (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 [2019-09-20 13:47:58,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:47:58,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:47:58,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 13:47:58,583 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:47:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:47:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-20 13:47:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 13:47:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 13:47:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:47:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:47:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:47:58,758 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:47:58,759 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 13:47:58,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:47:58 BoogieIcfgContainer [2019-09-20 13:47:58,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:47:58,761 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-20 13:47:58,761 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-20 13:47:58,761 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-20 13:47:58,762 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:47:58" (1/1) ... [2019-09-20 13:47:58,784 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:47:58,879 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-20 13:48:00,342 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-20 13:48:00,363 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. [2019-09-20 13:48:00,364 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-20 13:48:00,367 INFO L168 Benchmark]: Toolchain (without parser) took 2197.44 ms. Allocated memory was 132.1 MB in the beginning and 265.3 MB in the end (delta: 133.2 MB). Free memory was 88.1 MB in the beginning and 202.0 MB in the end (delta: -114.0 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:00,368 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 132.1 MB. Free memory is still 105.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:48:00,369 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.05 ms. Allocated memory is still 132.1 MB. Free memory was 88.1 MB in the beginning and 78.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:00,370 INFO L168 Benchmark]: Boogie Preprocessor took 125.17 ms. Allocated memory was 132.1 MB in the beginning and 199.8 MB in the end (delta: 67.6 MB). Free memory was 78.2 MB in the beginning and 175.6 MB in the end (delta: -97.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:00,371 INFO L168 Benchmark]: RCFGBuilder took 241.40 ms. Allocated memory is still 199.8 MB. Free memory was 175.6 MB in the beginning and 163.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:00,372 INFO L168 Benchmark]: Abstract Interpretation took 1603.40 ms. Allocated memory was 199.8 MB in the beginning and 265.3 MB in the end (delta: 65.5 MB). Free memory was 163.6 MB in the beginning and 202.0 MB in the end (delta: -38.4 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:00,376 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 132.1 MB. Free memory is still 105.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 224.05 ms. Allocated memory is still 132.1 MB. Free memory was 88.1 MB in the beginning and 78.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.17 ms. Allocated memory was 132.1 MB in the beginning and 199.8 MB in the end (delta: 67.6 MB). Free memory was 78.2 MB in the beginning and 175.6 MB in the end (delta: -97.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 241.40 ms. Allocated memory is still 199.8 MB. Free memory was 175.6 MB in the beginning and 163.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1603.40 ms. Allocated memory was 199.8 MB in the beginning and 265.3 MB in the end (delta: 65.5 MB). Free memory was 163.6 MB in the beginning and 202.0 MB in the end (delta: -38.4 MB). Peak memory consumption was 27.1 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...