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/loops/nec20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 12:39:09,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 12:39:09,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 12:39:09,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 12:39:09,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 12:39:09,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 12:39:09,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 12:39:09,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 12:39:09,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 12:39:09,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 12:39:09,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 12:39:09,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 12:39:09,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 12:39:09,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 12:39:09,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 12:39:09,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 12:39:09,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 12:39:09,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 12:39:09,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 12:39:09,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 12:39:09,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 12:39:09,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 12:39:09,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 12:39:09,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 12:39:09,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-03 12:39:09,485 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 12:39:09,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 12:39:09,487 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 12:39:09,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 12:39:09,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 12:39:09,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 12:39:09,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 12:39:09,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 12:39:09,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 12:39:09,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 12:39:09,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 12:39:09,493 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 [2019-10-03 12:39:09,509 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 12:39:09,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 12:39:09,509 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 12:39:09,510 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 12:39:09,511 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 12:39:09,511 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 12:39:09,511 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 12:39:09,511 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 12:39:09,511 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 12:39:09,512 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 12:39:09,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 12:39:09,513 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 12:39:09,513 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 12:39:09,513 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 12:39:09,513 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 12:39:09,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 12:39:09,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 12:39:09,514 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 12:39:09,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 12:39:09,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 12:39:09,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 12:39:09,515 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 12:39:09,515 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 12:39:09,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 12:39:09,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 12:39:09,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 12:39:09,516 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 12:39:09,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 12:39:09,516 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 12:39:09,516 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 12:39:09,548 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 12:39:09,561 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 12:39:09,565 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 12:39:09,567 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 12:39:09,568 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 12:39:09,569 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/nec20.c [2019-10-03 12:39:09,649 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8feb165bc/60430fa55bea4e2898d6254db7955e45/FLAG29ef0c44e [2019-10-03 12:39:10,149 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 12:39:10,150 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/nec20.c [2019-10-03 12:39:10,157 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8feb165bc/60430fa55bea4e2898d6254db7955e45/FLAG29ef0c44e [2019-10-03 12:39:10,507 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8feb165bc/60430fa55bea4e2898d6254db7955e45 [2019-10-03 12:39:10,516 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 12:39:10,518 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 12:39:10,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 12:39:10,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 12:39:10,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 12:39:10,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:39:10" (1/1) ... [2019-10-03 12:39:10,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b5ad9d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:10, skipping insertion in model container [2019-10-03 12:39:10,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:39:10" (1/1) ... [2019-10-03 12:39:10,538 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 12:39:10,552 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 12:39:10,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 12:39:10,747 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 12:39:10,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 12:39:10,781 INFO L192 MainTranslator]: Completed translation [2019-10-03 12:39:10,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:10 WrapperNode [2019-10-03 12:39:10,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 12:39:10,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 12:39:10,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 12:39:10,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 12:39:10,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:10" (1/1) ... [2019-10-03 12:39:10,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:10" (1/1) ... [2019-10-03 12:39:10,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:10" (1/1) ... [2019-10-03 12:39:10,888 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:10" (1/1) ... [2019-10-03 12:39:10,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:10" (1/1) ... [2019-10-03 12:39:10,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:10" (1/1) ... [2019-10-03 12:39:10,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:10" (1/1) ... [2019-10-03 12:39:10,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 12:39:10,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 12:39:10,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 12:39:10,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 12:39:10,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:10" (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 [2019-10-03 12:39:10,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 12:39:10,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 12:39:10,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-03 12:39:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 12:39:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 12:39:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-03 12:39:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-03 12:39:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-03 12:39:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 12:39:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 12:39:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 12:39:11,167 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 12:39:11,168 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-03 12:39:11,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:39:11 BoogieIcfgContainer [2019-10-03 12:39:11,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 12:39:11,170 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-03 12:39:11,170 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-03 12:39:11,170 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-03 12:39:11,171 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:39:11" (1/1) ... [2019-10-03 12:39:11,200 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 12:39:11,306 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-10-03 12:39:11,556 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-03 12:39:11,576 INFO L272 AbstractInterpreter]: Visited 30 different actions 216 times. Merged at 14 different actions 86 times. Widened at 1 different actions 7 times. Performed 343 root evaluator evaluations with a maximum evaluation depth of 6. Performed 343 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 13 fixpoints after 3 different actions. Largest state had 11 variables. [2019-10-03 12:39:11,576 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-03 12:39:11,579 INFO L168 Benchmark]: Toolchain (without parser) took 1060.05 ms. Allocated memory was 132.1 MB in the beginning and 199.2 MB in the end (delta: 67.1 MB). Free memory was 87.6 MB in the beginning and 147.1 MB in the end (delta: -59.5 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:11,581 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 132.1 MB. Free memory was 106.3 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 12:39:11,582 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.68 ms. Allocated memory is still 132.1 MB. Free memory was 87.4 MB in the beginning and 77.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:11,584 INFO L168 Benchmark]: Boogie Preprocessor took 122.05 ms. Allocated memory was 132.1 MB in the beginning and 199.2 MB in the end (delta: 67.1 MB). Free memory was 77.7 MB in the beginning and 175.6 MB in the end (delta: -97.9 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:11,585 INFO L168 Benchmark]: RCFGBuilder took 264.96 ms. Allocated memory is still 199.2 MB. Free memory was 175.6 MB in the beginning and 162.9 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:11,586 INFO L168 Benchmark]: Abstract Interpretation took 406.25 ms. Allocated memory is still 199.2 MB. Free memory was 162.3 MB in the beginning and 147.1 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:11,592 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 132.1 MB. Free memory was 106.3 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 262.68 ms. Allocated memory is still 132.1 MB. Free memory was 87.4 MB in the beginning and 77.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.05 ms. Allocated memory was 132.1 MB in the beginning and 199.2 MB in the end (delta: 67.1 MB). Free memory was 77.7 MB in the beginning and 175.6 MB in the end (delta: -97.9 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 264.96 ms. Allocated memory is still 199.2 MB. Free memory was 175.6 MB in the beginning and 162.9 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 406.25 ms. Allocated memory is still 199.2 MB. Free memory was 162.3 MB in the beginning and 147.1 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 6]: 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: [L10] int b; [L13] _Bool k=__VERIFIER_nondet_bool(); [L14] unsigned int i,n,j; [L15] int a[1025]; [L17] COND TRUE \read(k) [L18] n=0 [L23] i=0 [L24] j=__VERIFIER_nondet_uint() [L25] COND FALSE !(j > 10000) [L28] COND FALSE !(i <= n) [L33] a[i]=0 [L34] CALL __VERIFIER_assert(j<1025) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...