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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain -i ../../../trunk/examples/svcomp/loops/ludcmp.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 04:44:31,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 04:44:31,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 04:44:31,216 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 04:44:31,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 04:44:31,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 04:44:31,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 04:44:31,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 04:44:31,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 04:44:31,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 04:44:31,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 04:44:31,233 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 04:44:31,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 04:44:31,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 04:44:31,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 04:44:31,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 04:44:31,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 04:44:31,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 04:44:31,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 04:44:31,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 04:44:31,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 04:44:31,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 04:44:31,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 04:44:31,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 04:44:31,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 04:44:31,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 04:44:31,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 04:44:31,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 04:44:31,253 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 04:44:31,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 04:44:31,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 04:44:31,255 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 04:44:31,256 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 04:44:31,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 04:44:31,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 04:44:31,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 04:44:31,258 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 04:44:31,273 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 04:44:31,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 04:44:31,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 04:44:31,275 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 04:44:31,275 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 04:44:31,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 04:44:31,275 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 04:44:31,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 04:44:31,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 04:44:31,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 04:44:31,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 04:44:31,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 04:44:31,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 04:44:31,277 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 04:44:31,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 04:44:31,277 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 04:44:31,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 04:44:31,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 04:44:31,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 04:44:31,278 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 04:44:31,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 04:44:31,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 04:44:31,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 04:44:31,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 04:44:31,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 04:44:31,279 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 04:44:31,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 04:44:31,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 04:44:31,280 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain [2019-10-15 04:44:31,576 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 04:44:31,597 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 04:44:31,602 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 04:44:31,603 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 04:44:31,604 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 04:44:31,605 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/ludcmp.c [2019-10-15 04:44:31,669 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbfe0fadc/84e54942cb0147f5842819d2aa4a84fb/FLAG474369a88 [2019-10-15 04:44:32,136 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 04:44:32,137 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/ludcmp.c [2019-10-15 04:44:32,147 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbfe0fadc/84e54942cb0147f5842819d2aa4a84fb/FLAG474369a88 [2019-10-15 04:44:32,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbfe0fadc/84e54942cb0147f5842819d2aa4a84fb [2019-10-15 04:44:32,485 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 04:44:32,487 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 04:44:32,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 04:44:32,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 04:44:32,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 04:44:32,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:44:32" (1/1) ... [2019-10-15 04:44:32,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c8bf277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:32, skipping insertion in model container [2019-10-15 04:44:32,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:44:32" (1/1) ... [2019-10-15 04:44:32,505 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 04:44:32,527 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 04:44:32,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 04:44:32,843 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 04:44:33,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 04:44:33,054 INFO L192 MainTranslator]: Completed translation [2019-10-15 04:44:33,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:33 WrapperNode [2019-10-15 04:44:33,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 04:44:33,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 04:44:33,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 04:44:33,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 04:44:33,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:33" (1/1) ... [2019-10-15 04:44:33,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:33" (1/1) ... [2019-10-15 04:44:33,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:33" (1/1) ... [2019-10-15 04:44:33,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:33" (1/1) ... [2019-10-15 04:44:33,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:33" (1/1) ... [2019-10-15 04:44:33,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:33" (1/1) ... [2019-10-15 04:44:33,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:33" (1/1) ... [2019-10-15 04:44:33,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 04:44:33,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 04:44:33,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 04:44:33,162 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 04:44:33,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:33" (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 [2019-10-15 04:44:33,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 04:44:33,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 04:44:33,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 04:44:33,224 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2019-10-15 04:44:33,224 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 04:44:33,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2019-10-15 04:44:33,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 04:44:33,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 04:44:33,225 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2019-10-15 04:44:33,225 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2019-10-15 04:44:33,225 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 04:44:33,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-10-15 04:44:33,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-10-15 04:44:33,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 04:44:33,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 04:44:33,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 04:44:33,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 04:44:33,741 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 04:44:33,741 INFO L284 CfgBuilder]: Removed 11 assume(true) statements. [2019-10-15 04:44:33,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:44:33 BoogieIcfgContainer [2019-10-15 04:44:33,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 04:44:33,743 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-15 04:44:33,744 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-15 04:44:33,744 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-15 04:44:33,745 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:44:33" (1/1) ... [2019-10-15 04:44:33,772 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 04:44:33,831 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 04:44:33,836 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 0. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 24 variables. [2019-10-15 04:44:33,836 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-15 04:44:33,839 INFO L168 Benchmark]: Toolchain (without parser) took 1351.85 ms. Allocated memory was 143.7 MB in the beginning and 201.9 MB in the end (delta: 58.2 MB). Free memory was 101.4 MB in the beginning and 143.8 MB in the end (delta: -42.4 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2019-10-15 04:44:33,840 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 143.7 MB. Free memory was 120.1 MB in the beginning and 119.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-15 04:44:33,842 INFO L168 Benchmark]: CACSL2BoogieTranslator took 566.76 ms. Allocated memory was 143.7 MB in the beginning and 201.9 MB in the end (delta: 58.2 MB). Free memory was 101.2 MB in the beginning and 178.0 MB in the end (delta: -76.8 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. [2019-10-15 04:44:33,843 INFO L168 Benchmark]: Boogie Preprocessor took 105.42 ms. Allocated memory is still 201.9 MB. Free memory was 178.0 MB in the beginning and 175.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-10-15 04:44:33,843 INFO L168 Benchmark]: RCFGBuilder took 581.31 ms. Allocated memory is still 201.9 MB. Free memory was 175.6 MB in the beginning and 148.7 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2019-10-15 04:44:33,844 INFO L168 Benchmark]: Abstract Interpretation took 93.31 ms. Allocated memory is still 201.9 MB. Free memory was 148.7 MB in the beginning and 143.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-10-15 04:44:33,849 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 143.7 MB. Free memory was 120.1 MB in the beginning and 119.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 566.76 ms. Allocated memory was 143.7 MB in the beginning and 201.9 MB in the end (delta: 58.2 MB). Free memory was 101.2 MB in the beginning and 178.0 MB in the end (delta: -76.8 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.42 ms. Allocated memory is still 201.9 MB. Free memory was 178.0 MB in the beginning and 175.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 581.31 ms. Allocated memory is still 201.9 MB. Free memory was 175.6 MB in the beginning and 148.7 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 93.31 ms. Allocated memory is still 201.9 MB. Free memory was 148.7 MB in the beginning and 143.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location RESULT: Ultimate proved your program to be correct! Received shutdown request...