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_4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:11:58,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:11:58,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:11:58,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-11 16:11:58,771 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:11:58,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:11:58,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:11:58,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:11:58,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:11:58,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:11:58,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:11:58,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:11:58,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:11:58,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:11:58,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:11:58,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:11:58,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 16:11:58,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 16:11:58,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 16:11:58,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 16:11:58,799 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 [2019-09-11 16:11:58,822 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:11:58,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:11:58,823 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:11:58,823 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:11:58,824 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:11:58,824 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:11:58,824 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:11:58,825 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:11:58,825 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:11:58,825 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:11:58,826 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:11:58,826 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:11:58,826 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:11:58,827 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:11:58,827 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:11:58,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:11:58,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:11:58,827 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:11:58,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:11:58,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:11:58,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:11:58,828 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:11:58,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:11:58,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:11:58,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:11:58,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:11:58,829 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:11:58,829 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:11:58,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:11:58,829 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:11:58,875 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:11:58,888 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:11:58,891 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:11:58,893 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:11:58,893 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:11:58,894 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_4-2.c [2019-09-11 16:11:58,956 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15003ce84/de0b27f24c8148bb8f355ca4d27d034f/FLAGe41b7cff0 [2019-09-11 16:11:59,446 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:11:59,447 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_4-2.c [2019-09-11 16:11:59,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15003ce84/de0b27f24c8148bb8f355ca4d27d034f/FLAGe41b7cff0 [2019-09-11 16:11:59,764 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15003ce84/de0b27f24c8148bb8f355ca4d27d034f [2019-09-11 16:11:59,772 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:11:59,774 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:11:59,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:11:59,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:11:59,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:11:59,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:11:59" (1/1) ... [2019-09-11 16:11:59,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52fc66ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:59, skipping insertion in model container [2019-09-11 16:11:59,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:11:59" (1/1) ... [2019-09-11 16:11:59,793 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:11:59,806 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:11:59,991 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:11:59,996 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:12:00,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:12:00,023 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:12:00,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:00 WrapperNode [2019-09-11 16:12:00,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:12:00,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:12:00,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:12:00,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:12:00,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:00" (1/1) ... [2019-09-11 16:12:00,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:00" (1/1) ... [2019-09-11 16:12:00,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:00" (1/1) ... [2019-09-11 16:12:00,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:00" (1/1) ... [2019-09-11 16:12:00,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:00" (1/1) ... [2019-09-11 16:12:00,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:00" (1/1) ... [2019-09-11 16:12:00,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:00" (1/1) ... [2019-09-11 16:12:00,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:12:00,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:12:00,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:12:00,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:12:00,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:00" (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 [2019-09-11 16:12:00,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:12:00,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:12:00,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-11 16:12:00,201 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:12:00,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:12:00,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-11 16:12:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:12:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:12:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:12:00,353 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:12:00,353 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-11 16:12:00,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:12:00 BoogieIcfgContainer [2019-09-11 16:12:00,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:12:00,356 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:12:00,356 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:12:00,356 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:12:00,357 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:12:00" (1/1) ... [2019-09-11 16:12:00,383 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:12:00,449 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-11 16:12:02,095 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:12:02,116 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. [2019-09-11 16:12:02,116 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:12:02,121 INFO L168 Benchmark]: Toolchain (without parser) took 2344.19 ms. Allocated memory was 142.1 MB in the beginning and 297.3 MB in the end (delta: 155.2 MB). Free memory was 91.0 MB in the beginning and 270.1 MB in the end (delta: -179.1 MB). Peak memory consumption was 104.6 MB. Max. memory is 7.1 GB. [2019-09-11 16:12:02,123 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 142.1 MB. Free memory was 108.5 MB in the beginning and 108.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 16:12:02,124 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.46 ms. Allocated memory is still 142.1 MB. Free memory was 90.8 MB in the beginning and 81.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-09-11 16:12:02,128 INFO L168 Benchmark]: Boogie Preprocessor took 125.48 ms. Allocated memory was 142.1 MB in the beginning and 201.9 MB in the end (delta: 59.8 MB). Free memory was 81.4 MB in the beginning and 179.5 MB in the end (delta: -98.2 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2019-09-11 16:12:02,130 INFO L168 Benchmark]: RCFGBuilder took 204.56 ms. Allocated memory is still 201.9 MB. Free memory was 179.5 MB in the beginning and 169.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-09-11 16:12:02,131 INFO L168 Benchmark]: Abstract Interpretation took 1760.64 ms. Allocated memory was 201.9 MB in the beginning and 297.3 MB in the end (delta: 95.4 MB). Free memory was 169.4 MB in the beginning and 270.1 MB in the end (delta: -100.7 MB). Peak memory consumption was 123.3 MB. Max. memory is 7.1 GB. [2019-09-11 16:12:02,141 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 142.1 MB. Free memory was 108.5 MB in the beginning and 108.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 249.46 ms. Allocated memory is still 142.1 MB. Free memory was 90.8 MB in the beginning and 81.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.48 ms. Allocated memory was 142.1 MB in the beginning and 201.9 MB in the end (delta: 59.8 MB). Free memory was 81.4 MB in the beginning and 179.5 MB in the end (delta: -98.2 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 204.56 ms. Allocated memory is still 201.9 MB. Free memory was 179.5 MB in the beginning and 169.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1760.64 ms. Allocated memory was 201.9 MB in the beginning and 297.3 MB in the end (delta: 95.4 MB). Free memory was 169.4 MB in the beginning and 270.1 MB in the end (delta: -100.7 MB). Peak memory consumption was 123.3 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...