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-c6af20d [2019-09-03 21:25:41,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 21:25:41,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 21:25:41,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-03 21:25:41,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-03 21:25:41,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-03 21:25:41,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-03 21:25:41,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-03 21:25:41,274 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-03 21:25:41,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-03 21:25:41,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-03 21:25:41,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-03 21:25:41,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 21:25:41,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 21:25:41,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 21:25:41,277 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 [2019-09-03 21:25:41,292 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 21:25:41,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 21:25:41,293 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-03 21:25:41,293 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-03 21:25:41,293 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-03 21:25:41,294 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-03 21:25:41,294 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-03 21:25:41,294 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-03 21:25:41,294 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-03 21:25:41,294 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-03 21:25:41,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 21:25:41,295 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 21:25:41,295 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 21:25:41,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 21:25:41,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 21:25:41,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 21:25:41,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 21:25:41,296 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 21:25:41,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 21:25:41,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 21:25:41,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 21:25:41,297 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-03 21:25:41,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 21:25:41,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 21:25:41,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 21:25:41,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 21:25:41,298 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-03 21:25:41,298 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 21:25:41,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 21:25:41,299 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-03 21:25:41,326 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 21:25:41,339 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 21:25:41,342 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 21:25:41,343 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 21:25:41,344 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 21:25:41,344 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/nec20.c [2019-09-03 21:25:41,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f37a973fb/23ccbbd3555344d09359359bf5f438b3/FLAGd31621f3b [2019-09-03 21:25:41,828 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 21:25:41,829 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/nec20.c [2019-09-03 21:25:41,834 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f37a973fb/23ccbbd3555344d09359359bf5f438b3/FLAGd31621f3b [2019-09-03 21:25:42,231 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f37a973fb/23ccbbd3555344d09359359bf5f438b3 [2019-09-03 21:25:42,244 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 21:25:42,246 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 21:25:42,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 21:25:42,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 21:25:42,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 21:25:42,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:25:42" (1/1) ... [2019-09-03 21:25:42,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39e607a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:25:42, skipping insertion in model container [2019-09-03 21:25:42,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:25:42" (1/1) ... [2019-09-03 21:25:42,264 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 21:25:42,287 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 21:25:42,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:25:42,490 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 21:25:42,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:25:42,522 INFO L192 MainTranslator]: Completed translation [2019-09-03 21:25:42,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:25:42 WrapperNode [2019-09-03 21:25:42,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 21:25:42,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 21:25:42,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 21:25:42,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 21:25:42,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:25:42" (1/1) ... [2019-09-03 21:25:42,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:25:42" (1/1) ... [2019-09-03 21:25:42,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:25:42" (1/1) ... [2019-09-03 21:25:42,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:25:42" (1/1) ... [2019-09-03 21:25:42,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:25:42" (1/1) ... [2019-09-03 21:25:42,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:25:42" (1/1) ... [2019-09-03 21:25:42,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:25:42" (1/1) ... [2019-09-03 21:25:42,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 21:25:42,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 21:25:42,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 21:25:42,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 21:25:42,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:25:42" (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 [2019-09-03 21:25:42,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 21:25:42,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 21:25:42,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 21:25:42,697 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 21:25:42,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 21:25:42,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-03 21:25:42,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 21:25:42,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-03 21:25:42,698 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 21:25:42,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 21:25:42,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 21:25:42,924 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 21:25:42,925 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-03 21:25:42,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:25:42 BoogieIcfgContainer [2019-09-03 21:25:42,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 21:25:42,928 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-03 21:25:42,928 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-03 21:25:42,929 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-03 21:25:42,930 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:25:42" (1/1) ... [2019-09-03 21:25:43,002 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-03 21:25:43,073 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-03 21:25:43,286 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-03 21:25:43,303 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. [2019-09-03 21:25:43,303 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-03 21:25:43,306 INFO L168 Benchmark]: Toolchain (without parser) took 1059.24 ms. Allocated memory was 139.5 MB in the beginning and 198.7 MB in the end (delta: 59.2 MB). Free memory was 86.7 MB in the beginning and 147.9 MB in the end (delta: -61.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-03 21:25:43,307 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 21:25:43,308 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.22 ms. Allocated memory is still 139.5 MB. Free memory was 86.5 MB in the beginning and 76.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-09-03 21:25:43,310 INFO L168 Benchmark]: Boogie Preprocessor took 120.36 ms. Allocated memory was 139.5 MB in the beginning and 198.7 MB in the end (delta: 59.2 MB). Free memory was 76.8 MB in the beginning and 175.5 MB in the end (delta: -98.7 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-09-03 21:25:43,311 INFO L168 Benchmark]: RCFGBuilder took 283.39 ms. Allocated memory is still 198.7 MB. Free memory was 175.5 MB in the beginning and 163.0 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2019-09-03 21:25:43,312 INFO L168 Benchmark]: Abstract Interpretation took 375.32 ms. Allocated memory is still 198.7 MB. Free memory was 162.4 MB in the beginning and 147.9 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2019-09-03 21:25:43,318 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 139.5 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 274.22 ms. Allocated memory is still 139.5 MB. Free memory was 86.5 MB in the beginning and 76.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.36 ms. Allocated memory was 139.5 MB in the beginning and 198.7 MB in the end (delta: 59.2 MB). Free memory was 76.8 MB in the beginning and 175.5 MB in the end (delta: -98.7 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 283.39 ms. Allocated memory is still 198.7 MB. Free memory was 175.5 MB in the beginning and 163.0 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 375.32 ms. Allocated memory is still 198.7 MB. Free memory was 162.4 MB in the beginning and 147.9 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 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...