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_4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 21:26:14,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 21:26:14,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 21:26:14,208 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-03 21:26:14,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 21:26:14,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 21:26:14,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 21:26:14,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 21:26:14,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 21:26:14,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 21:26:14,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 21:26:14,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 21:26:14,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 21:26:14,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 21:26:14,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 21:26:14,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 21:26:14,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-03 21:26:14,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-03 21:26:14,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-03 21:26:14,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-03 21:26:14,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-03 21:26:14,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-03 21:26:14,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-03 21:26:14,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-03 21:26:14,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-03 21:26:14,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 21:26:14,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 21:26:14,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 21:26:14,243 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 21:26:14,257 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 21:26:14,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 21:26:14,258 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-03 21:26:14,258 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-03 21:26:14,258 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-03 21:26:14,259 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-03 21:26:14,259 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-03 21:26:14,259 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-03 21:26:14,259 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-03 21:26:14,259 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-03 21:26:14,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 21:26:14,260 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 21:26:14,260 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 21:26:14,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 21:26:14,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 21:26:14,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 21:26:14,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 21:26:14,262 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 21:26:14,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 21:26:14,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 21:26:14,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 21:26:14,263 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-03 21:26:14,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 21:26:14,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 21:26:14,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 21:26:14,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 21:26:14,264 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-03 21:26:14,265 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 21:26:14,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 21:26:14,265 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-03 21:26:14,310 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 21:26:14,324 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 21:26:14,328 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 21:26:14,329 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 21:26:14,330 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 21:26:14,331 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_4-1.c [2019-09-03 21:26:14,415 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e2f15c63/011cc66b3884489a877331e3609c77ab/FLAGdabc6a983 [2019-09-03 21:26:14,855 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 21:26:14,855 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_4-1.c [2019-09-03 21:26:14,862 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e2f15c63/011cc66b3884489a877331e3609c77ab/FLAGdabc6a983 [2019-09-03 21:26:15,276 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e2f15c63/011cc66b3884489a877331e3609c77ab [2019-09-03 21:26:15,285 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 21:26:15,287 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 21:26:15,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 21:26:15,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 21:26:15,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 21:26:15,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cf01bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15, skipping insertion in model container [2019-09-03 21:26:15,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,302 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 21:26:15,316 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 21:26:15,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:26:15,473 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 21:26:15,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:26:15,498 INFO L192 MainTranslator]: Completed translation [2019-09-03 21:26:15,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15 WrapperNode [2019-09-03 21:26:15,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 21:26:15,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 21:26:15,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 21:26:15,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 21:26:15,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 21:26:15,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 21:26:15,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 21:26:15,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 21:26:15,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (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 21:26:15,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 21:26:15,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 21:26:15,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 21:26:15,671 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 21:26:15,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 21:26:15,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 21:26:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 21:26:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 21:26:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 21:26:15,822 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 21:26:15,822 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-03 21:26:15,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:26:15 BoogieIcfgContainer [2019-09-03 21:26:15,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 21:26:15,824 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-03 21:26:15,824 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-03 21:26:15,825 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-03 21:26:15,825 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,850 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-03 21:26:15,923 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-03 21:26:17,551 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-03 21:26:17,571 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. [2019-09-03 21:26:17,571 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-03 21:26:17,576 INFO L168 Benchmark]: Toolchain (without parser) took 2286.65 ms. Allocated memory was 133.2 MB in the beginning and 305.7 MB in the end (delta: 172.5 MB). Free memory was 88.9 MB in the beginning and 217.1 MB in the end (delta: -128.2 MB). Peak memory consumption was 44.3 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:17,577 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 133.2 MB. Free memory is still 107.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-03 21:26:17,579 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.18 ms. Allocated memory is still 133.2 MB. Free memory was 88.9 MB in the beginning and 79.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:17,581 INFO L168 Benchmark]: Boogie Preprocessor took 123.17 ms. Allocated memory was 133.2 MB in the beginning and 200.8 MB in the end (delta: 67.6 MB). Free memory was 79.6 MB in the beginning and 177.2 MB in the end (delta: -97.7 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:17,583 INFO L168 Benchmark]: RCFGBuilder took 201.12 ms. Allocated memory is still 200.8 MB. Free memory was 177.2 MB in the beginning and 166.8 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:17,583 INFO L168 Benchmark]: Abstract Interpretation took 1747.25 ms. Allocated memory was 200.8 MB in the beginning and 305.7 MB in the end (delta: 104.9 MB). Free memory was 166.8 MB in the beginning and 217.1 MB in the end (delta: -50.3 MB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:17,594 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 133.2 MB. Free memory is still 107.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 211.18 ms. Allocated memory is still 133.2 MB. Free memory was 88.9 MB in the beginning and 79.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.17 ms. Allocated memory was 133.2 MB in the beginning and 200.8 MB in the end (delta: 67.6 MB). Free memory was 79.6 MB in the beginning and 177.2 MB in the end (delta: -97.7 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 201.12 ms. Allocated memory is still 200.8 MB. Free memory was 177.2 MB in the beginning and 166.8 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1747.25 ms. Allocated memory was 200.8 MB in the beginning and 305.7 MB in the end (delta: 104.9 MB). Free memory was 166.8 MB in the beginning and 217.1 MB in the end (delta: -50.3 MB). Peak memory consumption was 54.6 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 = 0x0ffffff1; [L13] COND FALSE !(x > 1) [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...