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/nested_1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 04:43:52,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 04:43:52,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 04:43:52,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 04:43:52,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 04:43:52,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 04:43:52,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 04:43:52,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 04:43:52,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 04:43:52,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 04:43:52,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 04:43:52,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 04:43:52,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 04:43:52,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 04:43:52,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 04:43:52,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 04:43:52,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 04:43:52,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 04:43:52,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 04:43:52,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 04:43:52,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 04:43:52,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 04:43:52,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 04:43:52,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 04:43:52,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 04:43:52,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 04:43:52,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 04:43:52,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 04:43:52,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 04:43:52,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 04:43:52,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 04:43:52,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 04:43:52,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 04:43:52,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 04:43:52,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 04:43:52,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 04:43:52,197 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 04:43:52,212 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 04:43:52,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 04:43:52,213 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 04:43:52,213 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 04:43:52,214 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 04:43:52,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 04:43:52,214 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 04:43:52,214 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 04:43:52,214 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 04:43:52,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 04:43:52,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 04:43:52,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 04:43:52,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 04:43:52,215 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 04:43:52,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 04:43:52,216 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 04:43:52,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 04:43:52,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 04:43:52,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 04:43:52,217 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 04:43:52,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 04:43:52,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 04:43:52,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 04:43:52,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 04:43:52,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 04:43:52,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 04:43:52,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 04:43:52,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 04:43:52,219 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 04:43:52,507 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 04:43:52,522 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 04:43:52,525 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 04:43:52,527 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 04:43:52,527 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 04:43:52,528 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/nested_1-1.c [2019-10-15 04:43:52,596 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97345b58d/8fd2a4ea9b9441ff9be6250086257d47/FLAG461220268 [2019-10-15 04:43:53,044 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 04:43:53,046 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/nested_1-1.c [2019-10-15 04:43:53,053 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97345b58d/8fd2a4ea9b9441ff9be6250086257d47/FLAG461220268 [2019-10-15 04:43:53,429 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97345b58d/8fd2a4ea9b9441ff9be6250086257d47 [2019-10-15 04:43:53,440 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 04:43:53,442 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 04:43:53,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 04:43:53,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 04:43:53,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 04:43:53,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:43:53" (1/1) ... [2019-10-15 04:43:53,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22a7751a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:53, skipping insertion in model container [2019-10-15 04:43:53,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:43:53" (1/1) ... [2019-10-15 04:43:53,458 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 04:43:53,475 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 04:43:53,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 04:43:53,652 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 04:43:53,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 04:43:53,684 INFO L192 MainTranslator]: Completed translation [2019-10-15 04:43:53,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:53 WrapperNode [2019-10-15 04:43:53,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 04:43:53,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 04:43:53,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 04:43:53,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 04:43:53,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:53" (1/1) ... [2019-10-15 04:43:53,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:53" (1/1) ... [2019-10-15 04:43:53,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:53" (1/1) ... [2019-10-15 04:43:53,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:53" (1/1) ... [2019-10-15 04:43:53,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:53" (1/1) ... [2019-10-15 04:43:53,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:53" (1/1) ... [2019-10-15 04:43:53,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:53" (1/1) ... [2019-10-15 04:43:53,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 04:43:53,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 04:43:53,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 04:43:53,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 04:43:53,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:53" (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 04:43:53,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 04:43:53,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 04:43:53,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 04:43:53,864 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 04:43:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 04:43:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 04:43:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 04:43:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 04:43:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 04:43:54,021 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 04:43:54,021 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-15 04:43:54,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:43:54 BoogieIcfgContainer [2019-10-15 04:43:54,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 04:43:54,023 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-15 04:43:54,023 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-15 04:43:54,024 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-15 04:43:54,024 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:43:54" (1/1) ... [2019-10-15 04:43:54,048 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 04:43:54,106 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-10-15 04:43:55,717 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-15 04:43:55,740 INFO L272 AbstractInterpreter]: Visited 23 different actions 188 times. Merged at 7 different actions 60 times. Widened at 3 different actions 16 times. Performed 322 root evaluator evaluations with a maximum evaluation depth of 12. Performed 322 inverse root evaluator evaluations with a maximum inverse evaluation depth of 12. Found 23 fixpoints after 4 different actions. Largest state had 5 variables. [2019-10-15 04:43:55,740 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-15 04:43:55,746 INFO L168 Benchmark]: Toolchain (without parser) took 2300.67 ms. Allocated memory was 142.1 MB in the beginning and 293.6 MB in the end (delta: 151.5 MB). Free memory was 100.8 MB in the beginning and 195.6 MB in the end (delta: -94.8 MB). Peak memory consumption was 56.7 MB. Max. memory is 7.1 GB. [2019-10-15 04:43:55,747 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 142.1 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 04:43:55,748 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.29 ms. Allocated memory is still 142.1 MB. Free memory was 100.6 MB in the beginning and 91.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-10-15 04:43:55,751 INFO L168 Benchmark]: Boogie Preprocessor took 123.27 ms. Allocated memory was 142.1 MB in the beginning and 201.3 MB in the end (delta: 59.2 MB). Free memory was 91.2 MB in the beginning and 180.0 MB in the end (delta: -88.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-10-15 04:43:55,753 INFO L168 Benchmark]: RCFGBuilder took 212.66 ms. Allocated memory is still 201.3 MB. Free memory was 180.0 MB in the beginning and 168.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-10-15 04:43:55,754 INFO L168 Benchmark]: Abstract Interpretation took 1717.34 ms. Allocated memory was 201.3 MB in the beginning and 293.6 MB in the end (delta: 92.3 MB). Free memory was 168.5 MB in the beginning and 195.6 MB in the end (delta: -27.1 MB). Peak memory consumption was 65.2 MB. Max. memory is 7.1 GB. [2019-10-15 04:43:55,765 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 142.1 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 243.29 ms. Allocated memory is still 142.1 MB. Free memory was 100.6 MB in the beginning and 91.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.27 ms. Allocated memory was 142.1 MB in the beginning and 201.3 MB in the end (delta: 59.2 MB). Free memory was 91.2 MB in the beginning and 180.0 MB in the end (delta: -88.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 212.66 ms. Allocated memory is still 201.3 MB. Free memory was 180.0 MB in the beginning and 168.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1717.34 ms. Allocated memory was 201.3 MB in the beginning and 293.6 MB in the end (delta: 92.3 MB). Free memory was 168.5 MB in the beginning and 195.6 MB in the end (delta: -27.1 MB). Peak memory consumption was 65.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 5]: 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: [L11] unsigned int x = 0; [L12] unsigned int y = 0; [L14] COND FALSE !(x < 0x0fffffff) [L24] CALL __VERIFIER_assert(x % 2) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...