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/functions_1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 21:26:04,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 21:26:04,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 21:26:04,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-03 21:26:04,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 21:26:04,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 21:26:04,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 21:26:04,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 21:26:04,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 21:26:04,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 21:26:04,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 21:26:04,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 21:26:04,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 21:26:04,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 21:26:04,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 21:26:04,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 21:26:04,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-03 21:26:04,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-03 21:26:04,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-03 21:26:04,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-03 21:26:04,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-03 21:26:04,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-03 21:26:04,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-03 21:26:04,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-03 21:26:04,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-03 21:26:04,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 21:26:04,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 21:26:04,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 21:26:04,141 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 21:26:04,156 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 21:26:04,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 21:26:04,157 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-03 21:26:04,157 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-03 21:26:04,158 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-03 21:26:04,158 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-03 21:26:04,158 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-03 21:26:04,158 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-03 21:26:04,159 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-03 21:26:04,159 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-03 21:26:04,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 21:26:04,160 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 21:26:04,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 21:26:04,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 21:26:04,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 21:26:04,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 21:26:04,161 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 21:26:04,161 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 21:26:04,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 21:26:04,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 21:26:04,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 21:26:04,162 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-03 21:26:04,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 21:26:04,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 21:26:04,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 21:26:04,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 21:26:04,163 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-03 21:26:04,163 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 21:26:04,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 21:26:04,163 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-03 21:26:04,192 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 21:26:04,205 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 21:26:04,208 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 21:26:04,210 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 21:26:04,210 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 21:26:04,211 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/functions_1-2.c [2019-09-03 21:26:04,273 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b97ec2784/0dd47442609b493fb6a82a157f784a34/FLAG319f2122b [2019-09-03 21:26:04,689 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 21:26:04,690 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/functions_1-2.c [2019-09-03 21:26:04,696 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b97ec2784/0dd47442609b493fb6a82a157f784a34/FLAG319f2122b [2019-09-03 21:26:05,058 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b97ec2784/0dd47442609b493fb6a82a157f784a34 [2019-09-03 21:26:05,068 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 21:26:05,070 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 21:26:05,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 21:26:05,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 21:26:05,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 21:26:05,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:26:05" (1/1) ... [2019-09-03 21:26:05,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c93ca5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:05, skipping insertion in model container [2019-09-03 21:26:05,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:26:05" (1/1) ... [2019-09-03 21:26:05,087 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 21:26:05,103 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 21:26:05,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:26:05,287 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 21:26:05,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:26:05,317 INFO L192 MainTranslator]: Completed translation [2019-09-03 21:26:05,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:05 WrapperNode [2019-09-03 21:26:05,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 21:26:05,319 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 21:26:05,319 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 21:26:05,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 21:26:05,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:05" (1/1) ... [2019-09-03 21:26:05,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:05" (1/1) ... [2019-09-03 21:26:05,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:05" (1/1) ... [2019-09-03 21:26:05,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:05" (1/1) ... [2019-09-03 21:26:05,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:05" (1/1) ... [2019-09-03 21:26:05,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:05" (1/1) ... [2019-09-03 21:26:05,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:05" (1/1) ... [2019-09-03 21:26:05,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 21:26:05,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 21:26:05,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 21:26:05,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 21:26:05,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:05" (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 21:26:05,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 21:26:05,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 21:26:05,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 21:26:05,495 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-09-03 21:26:05,496 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 21:26:05,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 21:26:05,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 21:26:05,496 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-09-03 21:26:05,496 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 21:26:05,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 21:26:05,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 21:26:05,650 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 21:26:05,650 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-03 21:26:05,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:26:05 BoogieIcfgContainer [2019-09-03 21:26:05,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 21:26:05,653 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-03 21:26:05,653 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-03 21:26:05,653 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-03 21:26:05,654 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:26:05" (1/1) ... [2019-09-03 21:26:05,682 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-03 21:26:05,798 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-03 21:26:07,243 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-03 21:26:07,264 INFO L272 AbstractInterpreter]: Visited 24 different actions 132 times. Merged at 6 different actions 36 times. Widened at 1 different actions 4 times. Performed 134 root evaluator evaluations with a maximum evaluation depth of 12. Performed 134 inverse root evaluator evaluations with a maximum inverse evaluation depth of 12. Found 7 fixpoints after 2 different actions. Largest state had 3 variables. [2019-09-03 21:26:07,265 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-03 21:26:07,269 INFO L168 Benchmark]: Toolchain (without parser) took 2196.54 ms. Allocated memory was 137.4 MB in the beginning and 271.6 MB in the end (delta: 134.2 MB). Free memory was 85.1 MB in the beginning and 150.5 MB in the end (delta: -65.4 MB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:07,271 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 137.4 MB. Free memory was 103.4 MB in the beginning and 103.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 21:26:07,272 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.35 ms. Allocated memory is still 137.4 MB. Free memory was 84.9 MB in the beginning and 75.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:07,275 INFO L168 Benchmark]: Boogie Preprocessor took 116.02 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 75.8 MB in the beginning and 176.2 MB in the end (delta: -100.4 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:07,277 INFO L168 Benchmark]: RCFGBuilder took 216.93 ms. Allocated memory is still 198.2 MB. Free memory was 175.6 MB in the beginning and 165.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:07,279 INFO L168 Benchmark]: Abstract Interpretation took 1612.19 ms. Allocated memory was 198.2 MB in the beginning and 271.6 MB in the end (delta: 73.4 MB). Free memory was 165.0 MB in the beginning and 150.5 MB in the end (delta: 14.6 MB). Peak memory consumption was 88.0 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:07,288 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 137.4 MB. Free memory was 103.4 MB in the beginning and 103.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 247.35 ms. Allocated memory is still 137.4 MB. Free memory was 84.9 MB in the beginning and 75.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.02 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 75.8 MB in the beginning and 176.2 MB in the end (delta: -100.4 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 216.93 ms. Allocated memory is still 198.2 MB. Free memory was 175.6 MB in the beginning and 165.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1612.19 ms. Allocated memory was 198.2 MB in the beginning and 271.6 MB in the end (delta: 73.4 MB). Free memory was 165.0 MB in the beginning and 150.5 MB in the end (delta: 14.6 MB). Peak memory consumption was 88.0 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: [L15] unsigned int x = 0; [L17] COND FALSE !(x < 0x0fffffff) [L21] 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...