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-new/half.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:47:48,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:47:48,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:47:48,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:47:48,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:47:48,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:47:48,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:47:48,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:47:48,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:47:48,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:47:48,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:47:48,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:47:48,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:47:48,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:47:48,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:47:48,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:47:48,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:47:48,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:47:48,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:47:48,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:47:48,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:47:48,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:47:48,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:47:48,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:47:48,413 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 13:47:48,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:47:48,417 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:47:48,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:47:48,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:47:48,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:47:48,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:47:48,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:47:48,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:47:48,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:47:48,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:47:48,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:47:48,423 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 [2019-09-20 13:47:48,441 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:47:48,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:47:48,442 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:47:48,442 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:47:48,446 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:47:48,446 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:47:48,446 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:47:48,446 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:47:48,446 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:47:48,447 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:47:48,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:47:48,448 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:47:48,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:47:48,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:47:48,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:47:48,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:47:48,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:47:48,449 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:47:48,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:47:48,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:47:48,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:47:48,451 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:47:48,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:47:48,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:47:48,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:47:48,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:47:48,453 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:47:48,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:47:48,453 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:47:48,453 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:47:48,497 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:47:48,510 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:47:48,513 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:47:48,515 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:47:48,515 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:47:48,516 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/half.i [2019-09-20 13:47:48,577 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b8fed2df/cf23d64e66e740f1adf75f11a97392d7/FLAG7bffcc5ad [2019-09-20 13:47:48,944 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:47:48,945 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/half.i [2019-09-20 13:47:48,952 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b8fed2df/cf23d64e66e740f1adf75f11a97392d7/FLAG7bffcc5ad [2019-09-20 13:47:49,324 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b8fed2df/cf23d64e66e740f1adf75f11a97392d7 [2019-09-20 13:47:49,335 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:47:49,337 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:47:49,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:47:49,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:47:49,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:47:49,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:47:49" (1/1) ... [2019-09-20 13:47:49,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3759cbc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:49, skipping insertion in model container [2019-09-20 13:47:49,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:47:49" (1/1) ... [2019-09-20 13:47:49,354 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:47:49,371 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:47:49,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:47:49,558 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:47:49,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:47:49,590 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:47:49,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:49 WrapperNode [2019-09-20 13:47:49,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:47:49,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:47:49,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:47:49,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:47:49,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:49" (1/1) ... [2019-09-20 13:47:49,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:49" (1/1) ... [2019-09-20 13:47:49,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:49" (1/1) ... [2019-09-20 13:47:49,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:49" (1/1) ... [2019-09-20 13:47:49,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:49" (1/1) ... [2019-09-20 13:47:49,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:49" (1/1) ... [2019-09-20 13:47:49,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:49" (1/1) ... [2019-09-20 13:47:49,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:47:49,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:47:49,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:47:49,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:47:49,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:49" (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 [2019-09-20 13:47:49,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:47:49,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:47:49,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 13:47:49,778 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:47:49,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:47:49,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 13:47:49,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 13:47:49,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:47:49,779 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:47:49,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:47:49,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:47:49,967 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:47:49,968 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 13:47:49,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:47:49 BoogieIcfgContainer [2019-09-20 13:47:49,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:47:49,971 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-20 13:47:49,971 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-20 13:47:49,972 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-20 13:47:49,972 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:47:49" (1/1) ... [2019-09-20 13:47:50,031 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:47:50,149 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-20 13:47:50,585 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-20 13:47:50,630 INFO L272 AbstractInterpreter]: Visited 25 different actions 133 times. Merged at 8 different actions 48 times. Widened at 1 different actions 4 times. Performed 182 root evaluator evaluations with a maximum evaluation depth of 10. Performed 182 inverse root evaluator evaluations with a maximum inverse evaluation depth of 10. Found 15 fixpoints after 4 different actions. Largest state had 7 variables. [2019-09-20 13:47:50,630 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-20 13:47:50,640 INFO L168 Benchmark]: Toolchain (without parser) took 1295.84 ms. Allocated memory was 138.4 MB in the beginning and 219.7 MB in the end (delta: 81.3 MB). Free memory was 86.6 MB in the beginning and 193.7 MB in the end (delta: -107.1 MB). Peak memory consumption was 77.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:50,641 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 104.4 MB in the beginning and 104.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:47:50,646 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.51 ms. Allocated memory is still 138.4 MB. Free memory was 86.2 MB in the beginning and 77.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:50,650 INFO L168 Benchmark]: Boogie Preprocessor took 117.57 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 77.0 MB in the beginning and 178.2 MB in the end (delta: -101.2 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:50,651 INFO L168 Benchmark]: RCFGBuilder took 260.53 ms. Allocated memory is still 198.7 MB. Free memory was 178.2 MB in the beginning and 165.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:50,654 INFO L168 Benchmark]: Abstract Interpretation took 659.52 ms. Allocated memory was 198.7 MB in the beginning and 219.7 MB in the end (delta: 21.0 MB). Free memory was 165.2 MB in the beginning and 193.7 MB in the end (delta: -28.5 MB). Peak memory consumption was 95.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:50,662 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 138.4 MB. Free memory was 104.4 MB in the beginning and 104.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 252.51 ms. Allocated memory is still 138.4 MB. Free memory was 86.2 MB in the beginning and 77.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.57 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 77.0 MB in the beginning and 178.2 MB in the end (delta: -101.2 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 260.53 ms. Allocated memory is still 198.7 MB. Free memory was 178.2 MB in the beginning and 165.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 659.52 ms. Allocated memory was 198.7 MB in the beginning and 219.7 MB in the end (delta: 21.0 MB). Free memory was 165.2 MB in the beginning and 193.7 MB in the end (delta: -28.5 MB). Peak memory consumption was 95.6 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] int i = 0; [L12] int n = 0; [L13] int k = __VERIFIER_nondet_int(); [L14] COND FALSE !(!(k <= 1000000 && k >= -1000000)) [L15] i = 0 [L15] COND FALSE !(i < 2*k) [L20] CALL __VERIFIER_assert(k < 0 || n == k) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...