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/fermat1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:47:56,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:47:56,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:47:56,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:47:56,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:47:56,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:47:56,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:47:56,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:47:56,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:47:56,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:47:56,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:47:56,889 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:47:56,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:47:56,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:47:56,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:47:56,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:47:56,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:47:56,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:47:56,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:47:56,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:47:56,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:47:56,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:47:56,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:47:56,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:47:56,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 13:47:56,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:47:56,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:47:56,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:47:56,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:47:56,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:47:56,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:47:56,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:47:56,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:47:56,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:47:56,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:47:56,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:47:56,915 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 13:47:56,930 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:47:56,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:47:56,931 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:47:56,931 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:47:56,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:47:56,932 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:47:56,933 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:47:56,933 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:47:56,933 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:47:56,933 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:47:56,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:47:56,934 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:47:56,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:47:56,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:47:56,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:47:56,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:47:56,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:47:56,935 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:47:56,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:47:56,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:47:56,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:47:56,936 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:47:56,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:47:56,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:47:56,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:47:56,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:47:56,937 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:47:56,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:47:56,938 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:47:56,938 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:47:56,966 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:47:56,979 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:47:56,983 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:47:56,984 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:47:56,985 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:47:56,986 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/fermat1.c [2019-09-20 13:47:57,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e8bf1a14/e6bcb3ffd2054b9290a59ae4708d88b7/FLAG19e31a0ee [2019-09-20 13:47:57,507 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:47:57,508 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/fermat1.c [2019-09-20 13:47:57,514 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e8bf1a14/e6bcb3ffd2054b9290a59ae4708d88b7/FLAG19e31a0ee [2019-09-20 13:47:57,948 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e8bf1a14/e6bcb3ffd2054b9290a59ae4708d88b7 [2019-09-20 13:47:57,957 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:47:57,959 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:47:57,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:47:57,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:47:57,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:47:57,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:47:57" (1/1) ... [2019-09-20 13:47:57,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72f8712e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:57, skipping insertion in model container [2019-09-20 13:47:57,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:47:57" (1/1) ... [2019-09-20 13:47:57,975 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:47:57,994 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:47:58,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:47:58,210 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:47:58,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:47:58,256 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:47:58,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:58 WrapperNode [2019-09-20 13:47:58,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:47:58,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:47:58,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:47:58,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:47:58,359 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 13:47:58,359 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 13:47:58,365 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 13:47:58,365 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 13:47:58,370 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 13:47:58,376 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 13:47:58,377 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 13:47:58,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:47:58,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:47:58,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:47:58,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:47:58,381 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 13:47:58,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:47:58,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:47:58,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 13:47:58,435 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:47:58,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:47:58,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-20 13:47:58,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 13:47:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 13:47:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:47:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:47:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:47:58,644 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:47:58,644 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-09-20 13:47:58,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:47:58 BoogieIcfgContainer [2019-09-20 13:47:58,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:47:58,647 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-20 13:47:58,647 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-20 13:47:58,647 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-20 13:47:58,648 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 13:47:58,698 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:47:58,825 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-20 13:48:00,666 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-20 13:48:00,690 INFO L272 AbstractInterpreter]: Visited 38 different actions 397 times. Merged at 15 different actions 86 times. Widened at 3 different actions 4 times. Performed 478 root evaluator evaluations with a maximum evaluation depth of 14. Performed 478 inverse root evaluator evaluations with a maximum inverse evaluation depth of 14. Found 24 fixpoints after 6 different actions. Largest state had 8 variables. [2019-09-20 13:48:00,690 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-20 13:48:00,697 INFO L168 Benchmark]: Toolchain (without parser) took 2734.66 ms. Allocated memory was 131.1 MB in the beginning and 270.0 MB in the end (delta: 138.9 MB). Free memory was 86.9 MB in the beginning and 177.4 MB in the end (delta: -90.5 MB). Peak memory consumption was 48.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:00,699 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 131.1 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:48:00,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.50 ms. Allocated memory is still 131.1 MB. Free memory was 86.7 MB in the beginning and 76.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:00,703 INFO L168 Benchmark]: Boogie Preprocessor took 121.58 ms. Allocated memory was 131.1 MB in the beginning and 198.2 MB in the end (delta: 67.1 MB). Free memory was 76.7 MB in the beginning and 173.9 MB in the end (delta: -97.1 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:00,706 INFO L168 Benchmark]: RCFGBuilder took 266.68 ms. Allocated memory is still 198.2 MB. Free memory was 173.9 MB in the beginning and 160.9 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:00,708 INFO L168 Benchmark]: Abstract Interpretation took 2043.31 ms. Allocated memory was 198.2 MB in the beginning and 270.0 MB in the end (delta: 71.8 MB). Free memory was 160.9 MB in the beginning and 177.4 MB in the end (delta: -16.5 MB). Peak memory consumption was 55.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:00,719 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 131.1 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 297.50 ms. Allocated memory is still 131.1 MB. Free memory was 86.7 MB in the beginning and 76.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.58 ms. Allocated memory was 131.1 MB in the beginning and 198.2 MB in the end (delta: 67.1 MB). Free memory was 76.7 MB in the beginning and 173.9 MB in the end (delta: -97.1 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 266.68 ms. Allocated memory is still 198.2 MB. Free memory was 173.9 MB in the beginning and 160.9 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 2043.31 ms. Allocated memory was 198.2 MB in the beginning and 270.0 MB in the end (delta: 71.8 MB). Free memory was 160.9 MB in the beginning and 177.4 MB in the end (delta: -16.5 MB). Peak memory consumption was 55.4 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() [L23] u = 2 * R + 1 [L24] v = 1 [L25] 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...