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-invariants/even.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 21:27:25,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 21:27:25,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 21:27:25,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-03 21:27:25,582 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 21:27:25,611 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 21:27:25,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 21:27:25,612 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-03 21:27:25,612 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-03 21:27:25,613 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-03 21:27:25,613 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-03 21:27:25,613 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-03 21:27:25,613 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-03 21:27:25,614 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-03 21:27:25,614 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-03 21:27:25,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 21:27:25,616 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 21:27:25,617 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 21:27:25,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 21:27:25,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 21:27:25,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 21:27:25,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 21:27:25,618 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 21:27:25,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 21:27:25,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 21:27:25,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 21:27:25,619 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-03 21:27:25,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 21:27:25,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 21:27:25,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 21:27:25,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 21:27:25,620 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-03 21:27:25,620 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 21:27:25,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 21:27:25,621 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-03 21:27:25,655 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 21:27:25,672 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 21:27:25,677 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 21:27:25,679 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 21:27:25,679 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 21:27:25,680 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/even.c [2019-09-03 21:27:25,750 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/126b04c31/1a8b1a1520f648ca861af7371b749dda/FLAG371237df4 [2019-09-03 21:27:26,255 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 21:27:26,256 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/even.c [2019-09-03 21:27:26,260 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/126b04c31/1a8b1a1520f648ca861af7371b749dda/FLAG371237df4 [2019-09-03 21:27:26,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/126b04c31/1a8b1a1520f648ca861af7371b749dda [2019-09-03 21:27:26,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 21:27:26,702 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 21:27:26,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 21:27:26,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 21:27:26,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 21:27:26,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:27:26" (1/1) ... [2019-09-03 21:27:26,714 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6559c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:26, skipping insertion in model container [2019-09-03 21:27:26,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:27:26" (1/1) ... [2019-09-03 21:27:26,722 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 21:27:26,738 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 21:27:26,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:27:26,991 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 21:27:27,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:27:27,033 INFO L192 MainTranslator]: Completed translation [2019-09-03 21:27:27,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:27 WrapperNode [2019-09-03 21:27:27,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 21:27:27,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 21:27:27,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 21:27:27,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 21:27:27,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:27" (1/1) ... [2019-09-03 21:27:27,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:27" (1/1) ... [2019-09-03 21:27:27,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:27" (1/1) ... [2019-09-03 21:27:27,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:27" (1/1) ... [2019-09-03 21:27:27,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:27" (1/1) ... [2019-09-03 21:27:27,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:27" (1/1) ... [2019-09-03 21:27:27,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:27" (1/1) ... [2019-09-03 21:27:27,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 21:27:27,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 21:27:27,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 21:27:27,180 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 21:27:27,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:27" (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 21:27:27,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 21:27:27,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 21:27:27,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 21:27:27,257 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 21:27:27,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 21:27:27,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-03 21:27:27,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 21:27:27,258 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 21:27:27,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 21:27:27,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 21:27:27,425 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 21:27:27,425 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-03 21:27:27,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:27:27 BoogieIcfgContainer [2019-09-03 21:27:27,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 21:27:27,427 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-03 21:27:27,428 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-03 21:27:27,428 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-03 21:27:27,429 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:27:27" (1/1) ... [2019-09-03 21:27:27,457 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-03 21:27:27,543 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-03 21:27:29,692 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-03 21:27:29,713 INFO L272 AbstractInterpreter]: Visited 21 different actions 126 times. Merged at 6 different actions 42 times. Widened at 1 different actions 3 times. Performed 149 root evaluator evaluations with a maximum evaluation depth of 13. Performed 149 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 8 fixpoints after 2 different actions. Largest state had 3 variables. [2019-09-03 21:27:29,714 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-03 21:27:29,718 INFO L168 Benchmark]: Toolchain (without parser) took 3013.65 ms. Allocated memory was 131.6 MB in the beginning and 334.5 MB in the end (delta: 202.9 MB). Free memory was 87.2 MB in the beginning and 292.5 MB in the end (delta: -205.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-03 21:27:29,721 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 131.6 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 21:27:29,722 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.79 ms. Allocated memory is still 131.6 MB. Free memory was 87.0 MB in the beginning and 77.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:29,724 INFO L168 Benchmark]: Boogie Preprocessor took 143.54 ms. Allocated memory was 131.6 MB in the beginning and 197.7 MB in the end (delta: 66.1 MB). Free memory was 77.9 MB in the beginning and 173.6 MB in the end (delta: -95.7 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:29,727 INFO L168 Benchmark]: RCFGBuilder took 247.46 ms. Allocated memory is still 197.7 MB. Free memory was 173.6 MB in the beginning and 163.2 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:29,728 INFO L168 Benchmark]: Abstract Interpretation took 2286.39 ms. Allocated memory was 197.7 MB in the beginning and 334.5 MB in the end (delta: 136.8 MB). Free memory was 163.2 MB in the beginning and 292.5 MB in the end (delta: -129.3 MB). Peak memory consumption was 7.5 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:29,739 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 131.6 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 329.79 ms. Allocated memory is still 131.6 MB. Free memory was 87.0 MB in the beginning and 77.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 143.54 ms. Allocated memory was 131.6 MB in the beginning and 197.7 MB in the end (delta: 66.1 MB). Free memory was 77.9 MB in the beginning and 173.6 MB in the end (delta: -95.7 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 247.46 ms. Allocated memory is still 197.7 MB. Free memory was 173.6 MB in the beginning and 163.2 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 2286.39 ms. Allocated memory was 197.7 MB in the beginning and 334.5 MB in the end (delta: 136.8 MB). Free memory was 163.2 MB in the beginning and 292.5 MB in the end (delta: -129.3 MB). Peak memory consumption was 7.5 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: [L10] unsigned int x = 0; [L11] COND FALSE !(__VERIFIER_nondet_int()) [L14] 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...