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 0.1.24-13a467a-m [2019-10-15 04:43:55,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 04:43:55,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 04:43:55,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 04:43:55,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 04:43:55,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 04:43:55,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 04:43:55,215 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 04:43:55,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 04:43:55,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 04:43:55,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 04:43:55,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 04:43:55,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 04:43:55,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 04:43:55,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 04:43:55,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 04:43:55,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 04:43:55,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 04:43:55,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 04:43:55,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 04:43:55,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 04:43:55,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 04:43:55,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 04:43:55,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 04:43:55,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 04:43:55,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 04:43:55,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 04:43:55,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 04:43:55,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 04:43:55,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 04:43:55,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 04:43:55,265 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 04:43:55,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 04:43:55,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 04:43:55,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 04:43:55,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 04:43:55,269 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 04:43:55,282 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 04:43:55,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 04:43:55,284 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 04:43:55,284 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 04:43:55,284 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 04:43:55,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 04:43:55,285 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 04:43:55,285 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 04:43:55,285 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 04:43:55,285 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 04:43:55,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 04:43:55,286 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 04:43:55,286 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 04:43:55,286 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 04:43:55,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 04:43:55,286 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 04:43:55,287 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 04:43:55,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 04:43:55,287 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 04:43:55,287 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 04:43:55,288 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 04:43:55,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 04:43:55,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 04:43:55,288 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 04:43:55,288 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 04:43:55,289 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 04:43:55,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 04:43:55,289 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 04:43:55,289 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 04:43:55,583 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 04:43:55,603 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 04:43:55,608 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 04:43:55,610 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 04:43:55,610 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 04:43:55,611 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_4-2.c [2019-10-15 04:43:55,681 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77cc5ee57/96ad4d26e9ba44a8a75a7a044b57d952/FLAGe73a3a8e3 [2019-10-15 04:43:56,134 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 04:43:56,135 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_4-2.c [2019-10-15 04:43:56,141 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77cc5ee57/96ad4d26e9ba44a8a75a7a044b57d952/FLAGe73a3a8e3 [2019-10-15 04:43:56,525 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77cc5ee57/96ad4d26e9ba44a8a75a7a044b57d952 [2019-10-15 04:43:56,533 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 04:43:56,535 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 04:43:56,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 04:43:56,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 04:43:56,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 04:43:56,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:43:56" (1/1) ... [2019-10-15 04:43:56,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10b07750 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:56, skipping insertion in model container [2019-10-15 04:43:56,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:43:56" (1/1) ... [2019-10-15 04:43:56,553 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 04:43:56,572 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 04:43:56,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 04:43:56,723 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 04:43:56,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 04:43:56,748 INFO L192 MainTranslator]: Completed translation [2019-10-15 04:43:56,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:56 WrapperNode [2019-10-15 04:43:56,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 04:43:56,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 04:43:56,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 04:43:56,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 04:43:56,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:56" (1/1) ... [2019-10-15 04:43:56,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:56" (1/1) ... [2019-10-15 04:43:56,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:56" (1/1) ... [2019-10-15 04:43:56,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:56" (1/1) ... [2019-10-15 04:43:56,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:56" (1/1) ... [2019-10-15 04:43:56,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:56" (1/1) ... [2019-10-15 04:43:56,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:56" (1/1) ... [2019-10-15 04:43:56,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 04:43:56,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 04:43:56,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 04:43:56,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 04:43:56,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:56" (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 04:43:56,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 04:43:56,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 04:43:56,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 04:43:56,932 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 04:43:56,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 04:43:56,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 04:43:56,933 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 04:43:56,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 04:43:56,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 04:43:57,103 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 04:43:57,103 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 04:43:57,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:43:57 BoogieIcfgContainer [2019-10-15 04:43:57,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 04:43:57,105 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-15 04:43:57,105 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-15 04:43:57,105 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-15 04:43:57,106 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:43:57" (1/1) ... [2019-10-15 04:43:57,131 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 04:43:57,195 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-10-15 04:43:58,612 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-15 04:43:58,632 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. [2019-10-15 04:43:58,633 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-15 04:43:58,638 INFO L168 Benchmark]: Toolchain (without parser) took 2099.74 ms. Allocated memory was 142.1 MB in the beginning and 278.9 MB in the end (delta: 136.8 MB). Free memory was 102.7 MB in the beginning and 205.8 MB in the end (delta: -103.1 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. [2019-10-15 04:43:58,639 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 142.1 MB. Free memory is still 121.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 04:43:58,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 212.97 ms. Allocated memory is still 142.1 MB. Free memory was 102.7 MB in the beginning and 93.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-10-15 04:43:58,643 INFO L168 Benchmark]: Boogie Preprocessor took 123.97 ms. Allocated memory was 142.1 MB in the beginning and 204.5 MB in the end (delta: 62.4 MB). Free memory was 93.5 MB in the beginning and 183.6 MB in the end (delta: -90.1 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-10-15 04:43:58,646 INFO L168 Benchmark]: RCFGBuilder took 230.95 ms. Allocated memory is still 204.5 MB. Free memory was 182.7 MB in the beginning and 172.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-10-15 04:43:58,647 INFO L168 Benchmark]: Abstract Interpretation took 1527.75 ms. Allocated memory was 204.5 MB in the beginning and 278.9 MB in the end (delta: 74.4 MB). Free memory was 172.9 MB in the beginning and 205.8 MB in the end (delta: -33.0 MB). Peak memory consumption was 41.5 MB. Max. memory is 7.1 GB. [2019-10-15 04:43:58,657 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 142.1 MB. Free memory is still 121.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 212.97 ms. Allocated memory is still 142.1 MB. Free memory was 102.7 MB in the beginning and 93.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.97 ms. Allocated memory was 142.1 MB in the beginning and 204.5 MB in the end (delta: 62.4 MB). Free memory was 93.5 MB in the beginning and 183.6 MB in the end (delta: -90.1 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 230.95 ms. Allocated memory is still 204.5 MB. Free memory was 182.7 MB in the beginning and 172.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1527.75 ms. Allocated memory was 204.5 MB in the beginning and 278.9 MB in the end (delta: 74.4 MB). Free memory was 172.9 MB in the beginning and 205.8 MB in the end (delta: -33.0 MB). Peak memory consumption was 41.5 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...