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_2-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 12:37:58,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 12:37:58,640 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 12:37:58,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-03 12:37:58,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 12:37:58,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 12:37:58,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 12:37:58,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 12:37:58,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 12:37:58,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 12:37:58,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 12:37:58,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 12:37:58,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 12:37:58,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 12:37:58,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 12:37:58,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 12:37:58,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-03 12:37:58,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 12:37:58,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 12:37:58,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 12:37:58,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 12:37:58,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 12:37:58,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 12:37:58,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 12:37:58,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 12:37:58,684 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 12:37:58,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 12:37:58,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 12:37:58,686 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 [2019-10-03 12:37:58,701 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 12:37:58,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 12:37:58,701 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 12:37:58,701 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 12:37:58,702 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 12:37:58,702 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 12:37:58,702 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 12:37:58,703 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 12:37:58,703 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 12:37:58,703 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 12:37:58,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 12:37:58,704 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 12:37:58,704 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 12:37:58,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 12:37:58,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 12:37:58,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 12:37:58,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 12:37:58,705 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 12:37:58,705 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 12:37:58,705 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 12:37:58,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 12:37:58,706 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 12:37:58,706 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 12:37:58,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 12:37:58,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 12:37:58,706 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 12:37:58,707 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 12:37:58,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 12:37:58,707 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 12:37:58,707 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 12:37:58,735 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 12:37:58,747 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 12:37:58,750 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 12:37:58,751 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 12:37:58,752 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 12:37:58,752 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_2-2.c [2019-10-03 12:37:58,811 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bcd90102/344ea3bee09042d8a2e844cc28641304/FLAG2ec883f64 [2019-10-03 12:37:59,256 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 12:37:59,257 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_2-2.c [2019-10-03 12:37:59,263 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bcd90102/344ea3bee09042d8a2e844cc28641304/FLAG2ec883f64 [2019-10-03 12:37:59,654 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bcd90102/344ea3bee09042d8a2e844cc28641304 [2019-10-03 12:37:59,663 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 12:37:59,665 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 12:37:59,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 12:37:59,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 12:37:59,670 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 12:37:59,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:37:59" (1/1) ... [2019-10-03 12:37:59,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46029d64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:37:59, skipping insertion in model container [2019-10-03 12:37:59,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:37:59" (1/1) ... [2019-10-03 12:37:59,681 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 12:37:59,698 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 12:37:59,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 12:37:59,891 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 12:37:59,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 12:37:59,916 INFO L192 MainTranslator]: Completed translation [2019-10-03 12:37:59,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:37:59 WrapperNode [2019-10-03 12:37:59,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 12:37:59,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 12:37:59,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 12:37:59,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 12:38:00,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:37:59" (1/1) ... [2019-10-03 12:38:00,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:37:59" (1/1) ... [2019-10-03 12:38:00,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:37:59" (1/1) ... [2019-10-03 12:38:00,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:37:59" (1/1) ... [2019-10-03 12:38:00,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:37:59" (1/1) ... [2019-10-03 12:38:00,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:37:59" (1/1) ... [2019-10-03 12:38:00,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:37:59" (1/1) ... [2019-10-03 12:38:00,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 12:38:00,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 12:38:00,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 12:38:00,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 12:38:00,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:37:59" (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 [2019-10-03 12:38:00,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 12:38:00,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 12:38:00,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-03 12:38:00,089 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 12:38:00,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 12:38:00,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-03 12:38:00,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-03 12:38:00,090 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 12:38:00,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 12:38:00,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 12:38:00,247 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 12:38:00,248 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-03 12:38:00,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:38:00 BoogieIcfgContainer [2019-10-03 12:38:00,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 12:38:00,250 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-03 12:38:00,250 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-03 12:38:00,250 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-03 12:38:00,251 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:38:00" (1/1) ... [2019-10-03 12:38:00,277 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 12:38:00,347 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-10-03 12:38:00,376 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-03 12:38:00,393 INFO L272 AbstractInterpreter]: Visited 19 different actions 19 times. Never merged. Never widened. Performed 12 root evaluator evaluations with a maximum evaluation depth of 7. Performed 12 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Found 1 fixpoints after 1 different actions. Largest state had 4 variables. [2019-10-03 12:38:00,393 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-03 12:38:00,396 INFO L168 Benchmark]: Toolchain (without parser) took 729.69 ms. Allocated memory was 141.0 MB in the beginning and 199.8 MB in the end (delta: 58.7 MB). Free memory was 88.7 MB in the beginning and 159.5 MB in the end (delta: -70.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 12:38:00,397 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 107.0 MB in the beginning and 106.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 12:38:00,398 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.25 ms. Allocated memory is still 141.0 MB. Free memory was 88.5 MB in the beginning and 79.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-10-03 12:38:00,399 INFO L168 Benchmark]: Boogie Preprocessor took 120.12 ms. Allocated memory was 141.0 MB in the beginning and 199.8 MB in the end (delta: 58.7 MB). Free memory was 79.2 MB in the beginning and 177.7 MB in the end (delta: -98.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-10-03 12:38:00,400 INFO L168 Benchmark]: RCFGBuilder took 211.08 ms. Allocated memory is still 199.8 MB. Free memory was 177.7 MB in the beginning and 166.5 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-10-03 12:38:00,401 INFO L168 Benchmark]: Abstract Interpretation took 143.21 ms. Allocated memory is still 199.8 MB. Free memory was 166.5 MB in the beginning and 159.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. [2019-10-03 12:38:00,406 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 107.0 MB in the beginning and 106.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 251.25 ms. Allocated memory is still 141.0 MB. Free memory was 88.5 MB in the beginning and 79.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.12 ms. Allocated memory was 141.0 MB in the beginning and 199.8 MB in the end (delta: 58.7 MB). Free memory was 79.2 MB in the beginning and 177.7 MB in the end (delta: -98.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 211.08 ms. Allocated memory is still 199.8 MB. Free memory was 177.7 MB in the beginning and 166.5 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 143.21 ms. Allocated memory is still 199.8 MB. Free memory was 166.5 MB in the beginning and 159.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 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 = __VERIFIER_nondet_uint(); [L14] COND FALSE !(x < 0x0fffffff) [L18] CALL __VERIFIER_assert(x > 0x0fffffff) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...