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/nested_1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 21:26:07,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 21:26:07,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 21:26:07,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-03 21:26:07,449 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-03 21:26:07,450 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-03 21:26:07,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-03 21:26:07,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-03 21:26:07,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-03 21:26:07,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-03 21:26:07,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-03 21:26:07,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-03 21:26:07,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 21:26:07,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 21:26:07,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 21:26:07,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 21:26:07,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 21:26:07,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 21:26:07,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 21:26:07,475 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 21:26:07,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 21:26:07,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 21:26:07,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 21:26:07,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 21:26:07,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-03 21:26:07,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-03 21:26:07,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-03 21:26:07,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-03 21:26:07,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-03 21:26:07,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-03 21:26:07,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-03 21:26:07,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-03 21:26:07,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-03 21:26:07,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 21:26:07,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 21:26:07,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 21:26:07,506 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 21:26:07,531 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 21:26:07,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 21:26:07,532 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-03 21:26:07,532 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-03 21:26:07,533 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-03 21:26:07,533 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-03 21:26:07,534 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-03 21:26:07,534 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-03 21:26:07,535 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-03 21:26:07,535 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-03 21:26:07,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 21:26:07,539 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 21:26:07,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 21:26:07,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 21:26:07,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 21:26:07,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 21:26:07,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 21:26:07,540 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 21:26:07,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 21:26:07,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 21:26:07,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 21:26:07,542 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-03 21:26:07,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 21:26:07,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 21:26:07,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 21:26:07,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 21:26:07,544 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-03 21:26:07,544 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 21:26:07,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 21:26:07,544 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-03 21:26:07,600 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 21:26:07,625 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 21:26:07,629 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 21:26:07,630 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 21:26:07,631 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 21:26:07,631 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/nested_1-2.c [2019-09-03 21:26:07,702 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8c7f62de/03293a37ea9c40f58c700775cca119e3/FLAG2e2e7e603 [2019-09-03 21:26:08,228 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 21:26:08,229 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/nested_1-2.c [2019-09-03 21:26:08,236 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8c7f62de/03293a37ea9c40f58c700775cca119e3/FLAG2e2e7e603 [2019-09-03 21:26:08,575 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8c7f62de/03293a37ea9c40f58c700775cca119e3 [2019-09-03 21:26:08,590 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 21:26:08,594 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 21:26:08,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 21:26:08,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 21:26:08,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 21:26:08,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:26:08" (1/1) ... [2019-09-03 21:26:08,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d518db7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:08, skipping insertion in model container [2019-09-03 21:26:08,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:26:08" (1/1) ... [2019-09-03 21:26:08,612 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 21:26:08,632 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 21:26:08,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:26:08,786 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 21:26:08,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:26:08,821 INFO L192 MainTranslator]: Completed translation [2019-09-03 21:26:08,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:08 WrapperNode [2019-09-03 21:26:08,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 21:26:08,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 21:26:08,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 21:26:08,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 21:26:08,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:08" (1/1) ... [2019-09-03 21:26:08,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:08" (1/1) ... [2019-09-03 21:26:08,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:08" (1/1) ... [2019-09-03 21:26:08,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:08" (1/1) ... [2019-09-03 21:26:08,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:08" (1/1) ... [2019-09-03 21:26:08,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:08" (1/1) ... [2019-09-03 21:26:08,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:08" (1/1) ... [2019-09-03 21:26:08,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 21:26:08,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 21:26:08,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 21:26:08,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 21:26:08,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:08" (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 21:26:09,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 21:26:09,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 21:26:09,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 21:26:09,029 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 21:26:09,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 21:26:09,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 21:26:09,030 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 21:26:09,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 21:26:09,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 21:26:09,215 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 21:26:09,215 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-03 21:26:09,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:26:09 BoogieIcfgContainer [2019-09-03 21:26:09,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 21:26:09,218 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-03 21:26:09,218 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-03 21:26:09,218 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-03 21:26:09,219 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:26:09" (1/1) ... [2019-09-03 21:26:09,253 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-03 21:26:09,351 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-03 21:26:11,407 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-03 21:26:11,430 INFO L272 AbstractInterpreter]: Visited 23 different actions 171 times. Merged at 7 different actions 54 times. Widened at 3 different actions 14 times. Performed 254 root evaluator evaluations with a maximum evaluation depth of 13. Performed 254 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 21 fixpoints after 4 different actions. Largest state had 5 variables. [2019-09-03 21:26:11,431 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-03 21:26:11,436 INFO L168 Benchmark]: Toolchain (without parser) took 2841.27 ms. Allocated memory was 133.7 MB in the beginning and 309.9 MB in the end (delta: 176.2 MB). Free memory was 90.3 MB in the beginning and 220.1 MB in the end (delta: -129.8 MB). Peak memory consumption was 46.4 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:11,437 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 133.7 MB. Free memory was 108.0 MB in the beginning and 107.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 21:26:11,438 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.86 ms. Allocated memory is still 133.7 MB. Free memory was 90.1 MB in the beginning and 80.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:11,441 INFO L168 Benchmark]: Boogie Preprocessor took 153.95 ms. Allocated memory was 133.7 MB in the beginning and 199.8 MB in the end (delta: 66.1 MB). Free memory was 80.9 MB in the beginning and 176.4 MB in the end (delta: -95.6 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:11,443 INFO L168 Benchmark]: RCFGBuilder took 240.00 ms. Allocated memory is still 199.8 MB. Free memory was 176.4 MB in the beginning and 164.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:11,445 INFO L168 Benchmark]: Abstract Interpretation took 2213.13 ms. Allocated memory was 199.8 MB in the beginning and 309.9 MB in the end (delta: 110.1 MB). Free memory was 164.9 MB in the beginning and 220.1 MB in the end (delta: -55.2 MB). Peak memory consumption was 54.9 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:11,454 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 133.7 MB. Free memory was 108.0 MB in the beginning and 107.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 226.86 ms. Allocated memory is still 133.7 MB. Free memory was 90.1 MB in the beginning and 80.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 153.95 ms. Allocated memory was 133.7 MB in the beginning and 199.8 MB in the end (delta: 66.1 MB). Free memory was 80.9 MB in the beginning and 176.4 MB in the end (delta: -95.6 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 240.00 ms. Allocated memory is still 199.8 MB. Free memory was 176.4 MB in the beginning and 164.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 2213.13 ms. Allocated memory was 199.8 MB in the beginning and 309.9 MB in the end (delta: 110.1 MB). Free memory was 164.9 MB in the beginning and 220.1 MB in the end (delta: -55.2 MB). Peak memory consumption was 54.9 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 = 0; [L12] unsigned int y = 0; [L14] COND FALSE !(x < 0x0fffffff) [L24] 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...