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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/loop-acceleration/simple_3-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 21:26:14,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 21:26:14,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 21:26:14,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-03 21:26:14,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 21:26:14,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 21:26:14,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 21:26:14,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 21:26:14,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 21:26:14,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 21:26:14,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 21:26:14,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 21:26:14,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 21:26:14,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 21:26:14,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 21:26:14,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 21:26:14,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-03 21:26:14,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-03 21:26:14,506 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-03 21:26:14,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-03 21:26:14,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-03 21:26:14,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-03 21:26:14,509 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-03 21:26:14,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-03 21:26:14,510 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-03 21:26:14,510 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 21:26:14,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 21:26:14,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 21:26:14,515 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-03 21:26:14,542 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 21:26:14,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 21:26:14,543 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-03 21:26:14,543 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-03 21:26:14,544 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-03 21:26:14,544 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-03 21:26:14,545 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-03 21:26:14,545 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-03 21:26:14,545 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-03 21:26:14,545 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-03 21:26:14,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 21:26:14,548 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 21:26:14,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 21:26:14,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 21:26:14,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 21:26:14,549 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 21:26:14,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 21:26:14,549 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 21:26:14,550 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 21:26:14,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 21:26:14,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 21:26:14,550 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-03 21:26:14,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 21:26:14,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 21:26:14,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 21:26:14,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 21:26:14,552 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-03 21:26:14,552 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 21:26:14,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 21:26:14,552 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-03 21:26:14,603 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 21:26:14,618 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 21:26:14,622 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 21:26:14,624 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 21:26:14,625 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 21:26:14,626 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_3-2.c [2019-09-03 21:26:14,699 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a26772791/8aef7789186e482a8c040f04ab8a204f/FLAG61ba885b2 [2019-09-03 21:26:15,160 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 21:26:15,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_3-2.c [2019-09-03 21:26:15,167 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a26772791/8aef7789186e482a8c040f04ab8a204f/FLAG61ba885b2 [2019-09-03 21:26:15,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a26772791/8aef7789186e482a8c040f04ab8a204f [2019-09-03 21:26:15,542 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 21:26:15,544 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 21:26:15,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 21:26:15,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 21:26:15,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 21:26:15,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d79b05c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15, skipping insertion in model container [2019-09-03 21:26:15,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,560 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 21:26:15,576 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 21:26:15,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:26:15,723 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 21:26:15,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:26:15,757 INFO L192 MainTranslator]: Completed translation [2019-09-03 21:26:15,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15 WrapperNode [2019-09-03 21:26:15,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 21:26:15,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 21:26:15,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 21:26:15,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 21:26:15,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 21:26:15,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 21:26:15,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 21:26:15,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 21:26:15,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (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 [2019-09-03 21:26:15,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 21:26:15,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 21:26:15,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 21:26:15,930 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 21:26:15,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 21:26:15,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2019-09-03 21:26:15,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 21:26:15,930 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 21:26:15,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 21:26:15,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 21:26:16,079 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 21:26:16,080 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-03 21:26:16,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:26:16 BoogieIcfgContainer [2019-09-03 21:26:16,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 21:26:16,082 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-03 21:26:16,082 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-03 21:26:16,082 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-03 21:26:16,083 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:26:16" (1/1) ... [2019-09-03 21:26:16,109 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-03 21:26:16,185 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-03 21:26:17,630 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-03 21:26:17,652 INFO L272 AbstractInterpreter]: Visited 19 different actions 84 times. Merged at 4 different actions 20 times. Widened at 1 different actions 3 times. Performed 79 root evaluator evaluations with a maximum evaluation depth of 13. Performed 79 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 6 fixpoints after 2 different actions. Largest state had 4 variables. [2019-09-03 21:26:17,653 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-03 21:26:17,657 INFO L168 Benchmark]: Toolchain (without parser) took 2110.57 ms. Allocated memory was 140.5 MB in the beginning and 310.4 MB in the end (delta: 169.9 MB). Free memory was 90.0 MB in the beginning and 255.0 MB in the end (delta: -165.0 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:17,659 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 107.8 MB in the beginning and 107.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 21:26:17,660 INFO L168 Benchmark]: CACSL2BoogieTranslator took 213.76 ms. Allocated memory is still 140.5 MB. Free memory was 89.8 MB in the beginning and 80.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:17,663 INFO L168 Benchmark]: Boogie Preprocessor took 113.86 ms. Allocated memory was 140.5 MB in the beginning and 199.8 MB in the end (delta: 59.2 MB). Free memory was 80.2 MB in the beginning and 177.4 MB in the end (delta: -97.2 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:17,665 INFO L168 Benchmark]: RCFGBuilder took 208.76 ms. Allocated memory is still 199.8 MB. Free memory was 177.4 MB in the beginning and 167.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:17,666 INFO L168 Benchmark]: Abstract Interpretation took 1570.80 ms. Allocated memory was 199.8 MB in the beginning and 310.4 MB in the end (delta: 110.6 MB). Free memory was 166.8 MB in the beginning and 255.0 MB in the end (delta: -88.2 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:17,677 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 107.8 MB in the beginning and 107.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 213.76 ms. Allocated memory is still 140.5 MB. Free memory was 89.8 MB in the beginning and 80.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.86 ms. Allocated memory was 140.5 MB in the beginning and 199.8 MB in the end (delta: 59.2 MB). Free memory was 80.2 MB in the beginning and 177.4 MB in the end (delta: -97.2 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 208.76 ms. Allocated memory is still 199.8 MB. Free memory was 177.4 MB in the beginning and 167.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1570.80 ms. Allocated memory was 199.8 MB in the beginning and 310.4 MB in the end (delta: 110.6 MB). Free memory was 166.8 MB in the beginning and 255.0 MB in the end (delta: -88.2 MB). Peak memory consumption was 22.4 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 short N = __VERIFIER_nondet_ushort(); [L15] COND FALSE !(x < N) [L19] CALL __VERIFIER_assert(!(x % 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...