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/simple_4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-14 00:38:43,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 00:38:43,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 00:38:43,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 00:38:43,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 00:38:43,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 00:38:43,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 00:38:43,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 00:38:43,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 00:38:43,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 00:38:43,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 00:38:43,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 00:38:43,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 00:38:43,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 00:38:43,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 00:38:43,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 00:38:43,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 00:38:43,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 00:38:43,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 00:38:43,589 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 00:38:43,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 00:38:43,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 00:38:43,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 00:38:43,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 00:38:43,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 00:38:43,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 00:38:43,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 00:38:43,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 00:38:43,605 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 [2019-10-14 00:38:43,619 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 00:38:43,619 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 00:38:43,620 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 00:38:43,620 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 00:38:43,621 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 00:38:43,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 00:38:43,621 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 00:38:43,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 00:38:43,621 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 00:38:43,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 00:38:43,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 00:38:43,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 00:38:43,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 00:38:43,626 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 00:38:43,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 00:38:43,626 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 00:38:43,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 00:38:43,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 00:38:43,627 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 00:38:43,627 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 00:38:43,627 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 00:38:43,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 00:38:43,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 00:38:43,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 00:38:43,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 00:38:43,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 00:38:43,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 00:38:43,629 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 00:38:43,629 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain [2019-10-14 00:38:43,931 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 00:38:43,944 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 00:38:43,948 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 00:38:43,950 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 00:38:43,950 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 00:38:43,952 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_4-2.c [2019-10-14 00:38:44,031 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7579dc328/dbe0f221cb7b420e8408186fa5dc7a3e/FLAG26e80af9e [2019-10-14 00:38:44,543 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 00:38:44,544 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_4-2.c [2019-10-14 00:38:44,549 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7579dc328/dbe0f221cb7b420e8408186fa5dc7a3e/FLAG26e80af9e [2019-10-14 00:38:44,891 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7579dc328/dbe0f221cb7b420e8408186fa5dc7a3e [2019-10-14 00:38:44,902 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 00:38:44,907 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 00:38:44,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 00:38:44,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 00:38:44,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 00:38:44,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:38:44" (1/1) ... [2019-10-14 00:38:44,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77e35f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:38:44, skipping insertion in model container [2019-10-14 00:38:44,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:38:44" (1/1) ... [2019-10-14 00:38:44,929 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 00:38:44,941 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 00:38:45,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 00:38:45,121 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 00:38:45,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 00:38:45,160 INFO L192 MainTranslator]: Completed translation [2019-10-14 00:38:45,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:38:45 WrapperNode [2019-10-14 00:38:45,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 00:38:45,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 00:38:45,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 00:38:45,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 00:38:45,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:38:45" (1/1) ... [2019-10-14 00:38:45,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:38:45" (1/1) ... [2019-10-14 00:38:45,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:38:45" (1/1) ... [2019-10-14 00:38:45,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:38:45" (1/1) ... [2019-10-14 00:38:45,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:38:45" (1/1) ... [2019-10-14 00:38:45,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:38:45" (1/1) ... [2019-10-14 00:38:45,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:38:45" (1/1) ... [2019-10-14 00:38:45,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 00:38:45,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 00:38:45,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 00:38:45,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 00:38:45,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:38:45" (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 [2019-10-14 00:38:45,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 00:38:45,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 00:38:45,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-14 00:38:45,353 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 00:38:45,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 00:38:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 00:38:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 00:38:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 00:38:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 00:38:45,506 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 00:38:45,506 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-14 00:38:45,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:38:45 BoogieIcfgContainer [2019-10-14 00:38:45,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 00:38:45,509 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-14 00:38:45,509 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-14 00:38:45,510 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-14 00:38:45,510 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:38:45" (1/1) ... [2019-10-14 00:38:45,539 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-14 00:38:45,605 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-10-14 00:38:47,314 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-14 00:38:47,335 INFO L272 AbstractInterpreter]: Visited 19 different actions 71 times. Merged at 4 different actions 16 times. Widened at 1 different actions 2 times. Performed 68 root evaluator evaluations with a maximum evaluation depth of 13. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 5 fixpoints after 2 different actions. Largest state had 2 variables. [2019-10-14 00:38:47,336 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-14 00:38:47,341 INFO L168 Benchmark]: Toolchain (without parser) took 2433.34 ms. Allocated memory was 145.2 MB in the beginning and 283.6 MB in the end (delta: 138.4 MB). Free memory was 103.4 MB in the beginning and 232.0 MB in the end (delta: -128.6 MB). Peak memory consumption was 103.3 MB. Max. memory is 7.1 GB. [2019-10-14 00:38:47,343 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-14 00:38:47,344 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.32 ms. Allocated memory is still 145.2 MB. Free memory was 103.2 MB in the beginning and 93.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-10-14 00:38:47,347 INFO L168 Benchmark]: Boogie Preprocessor took 126.99 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 93.9 MB in the beginning and 181.7 MB in the end (delta: -87.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-10-14 00:38:47,348 INFO L168 Benchmark]: RCFGBuilder took 219.49 ms. Allocated memory is still 202.9 MB. Free memory was 181.7 MB in the beginning and 171.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-10-14 00:38:47,349 INFO L168 Benchmark]: Abstract Interpretation took 1826.97 ms. Allocated memory was 202.9 MB in the beginning and 283.6 MB in the end (delta: 80.7 MB). Free memory was 171.0 MB in the beginning and 232.0 MB in the end (delta: -61.0 MB). Peak memory consumption was 113.2 MB. Max. memory is 7.1 GB. [2019-10-14 00:38:47,357 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 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 251.32 ms. Allocated memory is still 145.2 MB. Free memory was 103.2 MB in the beginning and 93.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.99 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 93.9 MB in the beginning and 181.7 MB in the end (delta: -87.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 219.49 ms. Allocated memory is still 202.9 MB. Free memory was 181.7 MB in the beginning and 171.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1826.97 ms. Allocated memory was 202.9 MB in the beginning and 283.6 MB in the end (delta: 80.7 MB). Free memory was 171.0 MB in the beginning and 232.0 MB in the end (delta: -61.0 MB). Peak memory consumption was 113.2 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 = 0x0ffffff0; [L13] COND FALSE !(x > 0) [L17] 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...