/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/loop-acceleration/diamond_2-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 06:57:03,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 06:57:03,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 06:57:03,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 06:57:03,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 06:57:03,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 06:57:03,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 06:57:03,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 06:57:03,184 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 06:57:03,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 06:57:03,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 06:57:03,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 06:57:03,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 06:57:03,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 06:57:03,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 06:57:03,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 06:57:03,198 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 06:57:03,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 06:57:03,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 06:57:03,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 06:57:03,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 06:57:03,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 06:57:03,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 06:57:03,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 06:57:03,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 06:57:03,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 06:57:03,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 06:57:03,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 06:57:03,228 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 06:57:03,262 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 06:57:03,262 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 06:57:03,263 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 06:57:03,264 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 06:57:03,264 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 06:57:03,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 06:57:03,264 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 06:57:03,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 06:57:03,265 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 06:57:03,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 06:57:03,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 06:57:03,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 06:57:03,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 06:57:03,268 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 06:57:03,268 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 06:57:03,268 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 06:57:03,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 06:57:03,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 06:57:03,269 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 06:57:03,269 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 06:57:03,269 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 06:57:03,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 06:57:03,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 06:57:03,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 06:57:03,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 06:57:03,272 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 06:57:03,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 06:57:03,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 06:57:03,273 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 06:57:03,567 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 06:57:03,588 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 06:57:03,591 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 06:57:03,592 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 06:57:03,592 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 06:57:03,593 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/diamond_2-2.c [2019-11-07 06:57:03,666 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/757fc6aa3/90985736f56f4a8baed3d44182eea28a/FLAG91d6d5318 [2019-11-07 06:57:04,138 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 06:57:04,140 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/diamond_2-2.c [2019-11-07 06:57:04,147 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/757fc6aa3/90985736f56f4a8baed3d44182eea28a/FLAG91d6d5318 [2019-11-07 06:57:04,518 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/757fc6aa3/90985736f56f4a8baed3d44182eea28a [2019-11-07 06:57:04,528 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 06:57:04,530 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 06:57:04,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 06:57:04,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 06:57:04,534 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 06:57:04,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:57:04" (1/1) ... [2019-11-07 06:57:04,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f20c3d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:04, skipping insertion in model container [2019-11-07 06:57:04,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:57:04" (1/1) ... [2019-11-07 06:57:04,545 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 06:57:04,560 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 06:57:04,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 06:57:04,755 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 06:57:04,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 06:57:04,788 INFO L192 MainTranslator]: Completed translation [2019-11-07 06:57:04,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:04 WrapperNode [2019-11-07 06:57:04,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 06:57:04,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 06:57:04,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 06:57:04,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 06:57:04,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:04" (1/1) ... [2019-11-07 06:57:04,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:04" (1/1) ... [2019-11-07 06:57:04,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:04" (1/1) ... [2019-11-07 06:57:04,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:04" (1/1) ... [2019-11-07 06:57:04,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:04" (1/1) ... [2019-11-07 06:57:04,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:04" (1/1) ... [2019-11-07 06:57:04,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:04" (1/1) ... [2019-11-07 06:57:04,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 06:57:04,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 06:57:04,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 06:57:04,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 06:57:04,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:04" (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 06:57:04,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 06:57:04,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 06:57:04,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 06:57:04,967 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 06:57:04,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 06:57:04,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-11-07 06:57:04,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 06:57:04,969 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 06:57:04,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 06:57:04,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 06:57:05,243 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 06:57:05,243 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 06:57:05,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:57:05 BoogieIcfgContainer [2019-11-07 06:57:05,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 06:57:05,245 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-11-07 06:57:05,246 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-11-07 06:57:05,246 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-11-07 06:57:05,247 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:57:05" (1/1) ... [2019-11-07 06:57:05,279 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 06:57:05,387 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-11-07 06:57:10,840 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-11-07 06:57:10,857 INFO L272 AbstractInterpreter]: Visited 39 different actions 752 times. Merged at 21 different actions 324 times. Widened at 2 different actions 4 times. Performed 2820 root evaluator evaluations with a maximum evaluation depth of 14. Performed 2820 inverse root evaluator evaluations with a maximum inverse evaluation depth of 14. Found 296 fixpoints after 18 different actions. Largest state had 5 variables. [2019-11-07 06:57:10,857 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-11-07 06:57:10,860 INFO L168 Benchmark]: Toolchain (without parser) took 6329.07 ms. Allocated memory was 144.7 MB in the beginning and 709.4 MB in the end (delta: 564.7 MB). Free memory was 102.8 MB in the beginning and 520.7 MB in the end (delta: -417.9 MB). Peak memory consumption was 146.7 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:10,861 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-11-07 06:57:10,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.99 ms. Allocated memory is still 144.7 MB. Free memory was 102.4 MB in the beginning and 92.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:10,864 INFO L168 Benchmark]: Boogie Preprocessor took 115.40 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 92.5 MB in the beginning and 180.0 MB in the end (delta: -87.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:10,865 INFO L168 Benchmark]: RCFGBuilder took 340.11 ms. Allocated memory is still 201.9 MB. Free memory was 180.0 MB in the beginning and 164.6 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:10,866 INFO L168 Benchmark]: Abstract Interpretation took 5611.54 ms. Allocated memory was 201.9 MB in the beginning and 709.4 MB in the end (delta: 507.5 MB). Free memory was 163.9 MB in the beginning and 520.8 MB in the end (delta: -356.8 MB). Peak memory consumption was 150.7 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:10,870 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 257.99 ms. Allocated memory is still 144.7 MB. Free memory was 102.4 MB in the beginning and 92.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.40 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 92.5 MB in the beginning and 180.0 MB in the end (delta: -87.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 340.11 ms. Allocated memory is still 201.9 MB. Free memory was 180.0 MB in the beginning and 164.6 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 5611.54 ms. Allocated memory was 201.9 MB in the beginning and 709.4 MB in the end (delta: 507.5 MB). Free memory was 163.9 MB in the beginning and 520.8 MB in the end (delta: -356.8 MB). Peak memory consumption was 150.7 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: [L12] unsigned int x = 0; [L13] unsigned int y = __VERIFIER_nondet_uint(); [L15] COND FALSE !(x < 99) [L47] CALL __VERIFIER_assert((x % 2) == (y % 2)) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...