/usr/bin/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_3-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 06:57:08,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 06:57:08,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 06:57:08,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-07 06:57:08,961 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 [2019-11-07 06:57:08,981 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 06:57:08,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 06:57:08,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 06:57:08,983 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 06:57:08,983 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 06:57:08,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 06:57:08,984 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 06:57:08,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 06:57:08,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 06:57:08,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 06:57:08,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 06:57:08,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 06:57:08,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 06:57:08,986 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 06:57:08,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 06:57:08,987 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 06:57:08,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 06:57:08,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 06:57:08,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 06:57:08,988 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 06:57:08,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 06:57:08,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 06:57:08,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 06:57:08,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 06:57:08,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 06:57:08,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 06:57:08,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 06:57:08,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 06:57:08,990 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain [2019-11-07 06:57:09,257 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 06:57:09,270 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 06:57:09,273 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 06:57:09,275 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 06:57:09,275 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 06:57:09,276 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_3-1.c [2019-11-07 06:57:09,351 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e71c00984/1243aa3168684397a32770456418e117/FLAG66725d493 [2019-11-07 06:57:09,802 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 06:57:09,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_3-1.c [2019-11-07 06:57:09,811 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e71c00984/1243aa3168684397a32770456418e117/FLAG66725d493 [2019-11-07 06:57:10,167 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e71c00984/1243aa3168684397a32770456418e117 [2019-11-07 06:57:10,175 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 06:57:10,177 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 06:57:10,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 06:57:10,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 06:57:10,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 06:57:10,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:57:10" (1/1) ... [2019-11-07 06:57:10,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e145172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:10, skipping insertion in model container [2019-11-07 06:57:10,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:57:10" (1/1) ... [2019-11-07 06:57:10,193 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 06:57:10,210 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 06:57:10,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 06:57:10,407 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 06:57:10,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 06:57:10,441 INFO L192 MainTranslator]: Completed translation [2019-11-07 06:57:10,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:10 WrapperNode [2019-11-07 06:57:10,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 06:57:10,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 06:57:10,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 06:57:10,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 06:57:10,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:10" (1/1) ... [2019-11-07 06:57:10,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:10" (1/1) ... [2019-11-07 06:57:10,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:10" (1/1) ... [2019-11-07 06:57:10,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:10" (1/1) ... [2019-11-07 06:57:10,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:10" (1/1) ... [2019-11-07 06:57:10,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:10" (1/1) ... [2019-11-07 06:57:10,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:10" (1/1) ... [2019-11-07 06:57:10,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 06:57:10,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 06:57:10,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 06:57:10,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 06:57:10,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:10" (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 [2019-11-07 06:57:10,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 06:57:10,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 06:57:10,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 06:57:10,608 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 06:57:10,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 06:57:10,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2019-11-07 06:57:10,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 06:57:10,609 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 06:57:10,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 06:57:10,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 06:57:10,769 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 06:57:10,769 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 06:57:10,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:57:10 BoogieIcfgContainer [2019-11-07 06:57:10,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 06:57:10,771 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-11-07 06:57:10,772 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-11-07 06:57:10,772 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-11-07 06:57:10,773 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:57:10" (1/1) ... [2019-11-07 06:57:10,799 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 06:57:10,866 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-11-07 06:57:12,283 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-11-07 06:57:12,307 INFO L272 AbstractInterpreter]: Visited 19 different actions 97 times. Merged at 4 different actions 24 times. Widened at 1 different actions 4 times. Performed 103 root evaluator evaluations with a maximum evaluation depth of 12. Performed 103 inverse root evaluator evaluations with a maximum inverse evaluation depth of 12. Found 7 fixpoints after 2 different actions. Largest state had 4 variables. [2019-11-07 06:57:12,307 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-11-07 06:57:12,312 INFO L168 Benchmark]: Toolchain (without parser) took 2132.43 ms. Allocated memory was 139.5 MB in the beginning and 246.9 MB in the end (delta: 107.5 MB). Free memory was 103.8 MB in the beginning and 190.5 MB in the end (delta: -86.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:12,314 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 139.5 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 06:57:12,315 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.56 ms. Allocated memory is still 139.5 MB. Free memory was 103.4 MB in the beginning and 93.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:12,318 INFO L168 Benchmark]: Boogie Preprocessor took 111.59 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 93.9 MB in the beginning and 182.5 MB in the end (delta: -88.6 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:12,320 INFO L168 Benchmark]: RCFGBuilder took 216.15 ms. Allocated memory is still 203.4 MB. Free memory was 181.9 MB in the beginning and 172.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:12,321 INFO L168 Benchmark]: Abstract Interpretation took 1535.85 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 172.1 MB in the beginning and 190.5 MB in the end (delta: -18.4 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:12,332 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 139.5 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 264.56 ms. Allocated memory is still 139.5 MB. Free memory was 103.4 MB in the beginning and 93.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.59 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 93.9 MB in the beginning and 182.5 MB in the end (delta: -88.6 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 216.15 ms. Allocated memory is still 203.4 MB. Free memory was 181.9 MB in the beginning and 172.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1535.85 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 172.1 MB in the beginning and 190.5 MB in the end (delta: -18.4 MB). Peak memory consumption was 25.1 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...