/usr/bin/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/array-examples/standard_palindrome_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:54:12,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:54:12,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:54:12,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:54:12,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:54:12,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:54:12,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:54:12,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:54:12,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:54:12,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:54:12,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:54:12,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:54:12,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:54:12,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:54:12,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:54:12,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:54:12,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:54:12,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:54:12,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:54:12,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:54:12,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:54:12,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:54:12,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:54:12,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:54:12,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 04:54:12,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:54:12,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:54:12,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:54:12,740 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 [2019-11-07 04:54:12,755 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:54:12,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:54:12,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:54:12,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:54:12,757 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:54:12,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:54:12,758 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:54:12,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:54:12,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:54:12,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:54:12,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:54:12,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:54:12,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:54:12,759 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:54:12,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:54:12,759 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:54:12,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:54:12,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:54:12,760 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:54:12,760 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:54:12,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:54:12,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:54:12,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:54:12,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:54:12,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:54:12,761 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:54:12,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:54:12,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:54:12,762 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain [2019-11-07 04:54:13,072 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:54:13,092 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:54:13,096 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:54:13,098 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:54:13,099 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:54:13,100 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_palindrome_ground.i [2019-11-07 04:54:13,175 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8f4fea9e/e74fc8526d254a3d93385a48a8d98a0c/FLAGd59db1238 [2019-11-07 04:54:13,640 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:54:13,640 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_palindrome_ground.i [2019-11-07 04:54:13,648 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8f4fea9e/e74fc8526d254a3d93385a48a8d98a0c/FLAGd59db1238 [2019-11-07 04:54:14,054 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8f4fea9e/e74fc8526d254a3d93385a48a8d98a0c [2019-11-07 04:54:14,064 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:54:14,065 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:54:14,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:54:14,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:54:14,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:54:14,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:54:14" (1/1) ... [2019-11-07 04:54:14,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63110a36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:54:14, skipping insertion in model container [2019-11-07 04:54:14,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:54:14" (1/1) ... [2019-11-07 04:54:14,081 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:54:14,102 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:54:14,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:54:14,298 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:54:14,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:54:14,339 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:54:14,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:54:14 WrapperNode [2019-11-07 04:54:14,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:54:14,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:54:14,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:54:14,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:54:14,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:54:14" (1/1) ... [2019-11-07 04:54:14,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:54:14" (1/1) ... [2019-11-07 04:54:14,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:54:14" (1/1) ... [2019-11-07 04:54:14,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:54:14" (1/1) ... [2019-11-07 04:54:14,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:54:14" (1/1) ... [2019-11-07 04:54:14,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:54:14" (1/1) ... [2019-11-07 04:54:14,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:54:14" (1/1) ... [2019-11-07 04:54:14,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:54:14,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:54:14,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:54:14,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:54:14,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:54:14" (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 [2019-11-07 04:54:14,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:54:14,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:54:14,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 04:54:14,518 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:54:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:54:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 04:54:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:54:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:54:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:54:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:54:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:54:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:54:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:54:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:54:14,791 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:54:14,791 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-07 04:54:14,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:54:14 BoogieIcfgContainer [2019-11-07 04:54:14,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:54:14,802 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-11-07 04:54:14,802 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-11-07 04:54:14,803 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-11-07 04:54:14,805 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:54:14" (1/1) ... [2019-11-07 04:54:14,833 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 04:54:14,906 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-07 04:54:14,912 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 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. [2019-11-07 04:54:14,913 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-11-07 04:54:14,916 INFO L168 Benchmark]: Toolchain (without parser) took 849.19 ms. Allocated memory was 143.1 MB in the beginning and 199.8 MB in the end (delta: 56.6 MB). Free memory was 99.9 MB in the beginning and 157.7 MB in the end (delta: -57.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-11-07 04:54:14,917 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 143.1 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-11-07 04:54:14,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.02 ms. Allocated memory is still 143.1 MB. Free memory was 99.7 MB in the beginning and 90.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-11-07 04:54:14,920 INFO L168 Benchmark]: Boogie Preprocessor took 127.04 ms. Allocated memory was 143.1 MB in the beginning and 199.8 MB in the end (delta: 56.6 MB). Free memory was 89.8 MB in the beginning and 177.2 MB in the end (delta: -87.4 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-11-07 04:54:14,922 INFO L168 Benchmark]: RCFGBuilder took 324.68 ms. Allocated memory is still 199.8 MB. Free memory was 177.2 MB in the beginning and 163.1 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2019-11-07 04:54:14,923 INFO L168 Benchmark]: Abstract Interpretation took 110.79 ms. Allocated memory is still 199.8 MB. Free memory was 163.1 MB in the beginning and 157.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2019-11-07 04:54:14,931 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 143.1 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 274.02 ms. Allocated memory is still 143.1 MB. Free memory was 99.7 MB in the beginning and 90.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.04 ms. Allocated memory was 143.1 MB in the beginning and 199.8 MB in the end (delta: 56.6 MB). Free memory was 89.8 MB in the beginning and 177.2 MB in the end (delta: -87.4 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 324.68 ms. Allocated memory is still 199.8 MB. Free memory was 177.2 MB in the beginning and 163.1 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 110.79 ms. Allocated memory is still 199.8 MB. Free memory was 163.1 MB in the beginning and 157.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 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: 2]: 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...