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-c6af20d [2019-09-03 21:27:00,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 21:27:00,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 21:27:00,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-03 21:27:00,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-03 21:27:00,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-03 21:27:00,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-03 21:27:00,176 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-03 21:27:00,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-03 21:27:00,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-03 21:27:00,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-03 21:27:00,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-03 21:27:00,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 21:27:00,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 21:27:00,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 21:27:00,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 21:27:00,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 21:27:00,186 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 21:27:00,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 21:27:00,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 21:27:00,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 21:27:00,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 21:27:00,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 21:27:00,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 21:27:00,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-03 21:27:00,200 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-03 21:27:00,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-03 21:27:00,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-03 21:27:00,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-03 21:27:00,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-03 21:27:00,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-03 21:27:00,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-03 21:27:00,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-03 21:27:00,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 21:27:00,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 21:27:00,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 21:27:00,206 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 21:27:00,221 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 21:27:00,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 21:27:00,221 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-03 21:27:00,222 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-03 21:27:00,222 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-03 21:27:00,223 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-03 21:27:00,223 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-03 21:27:00,223 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-03 21:27:00,223 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-03 21:27:00,223 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-03 21:27:00,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 21:27:00,224 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 21:27:00,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 21:27:00,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 21:27:00,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 21:27:00,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 21:27:00,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 21:27:00,226 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 21:27:00,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 21:27:00,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 21:27:00,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 21:27:00,226 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-03 21:27:00,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 21:27:00,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 21:27:00,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 21:27:00,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 21:27:00,227 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-03 21:27:00,228 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 21:27:00,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 21:27:00,228 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-03 21:27:00,255 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 21:27:00,268 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 21:27:00,271 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 21:27:00,272 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 21:27:00,273 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 21:27:00,274 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/half.i [2019-09-03 21:27:00,334 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e356a0fb/98bc8486ae844f7b8bcc5aa31dd50f47/FLAGf67515595 [2019-09-03 21:27:00,787 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 21:27:00,788 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/half.i [2019-09-03 21:27:00,792 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e356a0fb/98bc8486ae844f7b8bcc5aa31dd50f47/FLAGf67515595 [2019-09-03 21:27:01,134 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e356a0fb/98bc8486ae844f7b8bcc5aa31dd50f47 [2019-09-03 21:27:01,144 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 21:27:01,145 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 21:27:01,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 21:27:01,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 21:27:01,150 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 21:27:01,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:27:01" (1/1) ... [2019-09-03 21:27:01,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63f255d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:01, skipping insertion in model container [2019-09-03 21:27:01,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:27:01" (1/1) ... [2019-09-03 21:27:01,161 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 21:27:01,175 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 21:27:01,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:27:01,344 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 21:27:01,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:27:01,378 INFO L192 MainTranslator]: Completed translation [2019-09-03 21:27:01,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:01 WrapperNode [2019-09-03 21:27:01,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 21:27:01,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 21:27:01,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 21:27:01,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 21:27:01,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:01" (1/1) ... [2019-09-03 21:27:01,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:01" (1/1) ... [2019-09-03 21:27:01,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:01" (1/1) ... [2019-09-03 21:27:01,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:01" (1/1) ... [2019-09-03 21:27:01,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:01" (1/1) ... [2019-09-03 21:27:01,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:01" (1/1) ... [2019-09-03 21:27:01,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:01" (1/1) ... [2019-09-03 21:27:01,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 21:27:01,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 21:27:01,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 21:27:01,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 21:27:01,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:01" (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 21:27:01,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 21:27:01,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 21:27:01,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 21:27:01,563 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 21:27:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 21:27:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-03 21:27:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 21:27:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-03 21:27:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 21:27:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 21:27:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 21:27:01,732 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 21:27:01,733 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-03 21:27:01,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:27:01 BoogieIcfgContainer [2019-09-03 21:27:01,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 21:27:01,741 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-03 21:27:01,741 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-03 21:27:01,741 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-03 21:27:01,742 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:27:01" (1/1) ... [2019-09-03 21:27:01,771 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-03 21:27:01,871 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-03 21:27:02,419 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-03 21:27:02,441 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. [2019-09-03 21:27:02,442 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-03 21:27:02,447 INFO L168 Benchmark]: Toolchain (without parser) took 1298.37 ms. Allocated memory was 132.6 MB in the beginning and 224.4 MB in the end (delta: 91.8 MB). Free memory was 87.0 MB in the beginning and 196.2 MB in the end (delta: -109.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-03 21:27:02,448 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 132.6 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 21:27:02,449 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.63 ms. Allocated memory is still 132.6 MB. Free memory was 86.8 MB in the beginning and 77.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:02,453 INFO L168 Benchmark]: Boogie Preprocessor took 124.78 ms. Allocated memory was 132.6 MB in the beginning and 200.3 MB in the end (delta: 67.6 MB). Free memory was 77.7 MB in the beginning and 176.8 MB in the end (delta: -99.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:02,455 INFO L168 Benchmark]: RCFGBuilder took 230.52 ms. Allocated memory is still 200.3 MB. Free memory was 176.8 MB in the beginning and 165.1 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:02,457 INFO L168 Benchmark]: Abstract Interpretation took 700.86 ms. Allocated memory was 200.3 MB in the beginning and 224.4 MB in the end (delta: 24.1 MB). Free memory was 165.1 MB in the beginning and 196.2 MB in the end (delta: -31.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-03 21:27:02,469 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 132.6 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 232.63 ms. Allocated memory is still 132.6 MB. Free memory was 86.8 MB in the beginning and 77.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.78 ms. Allocated memory was 132.6 MB in the beginning and 200.3 MB in the end (delta: 67.6 MB). Free memory was 77.7 MB in the beginning and 176.8 MB in the end (delta: -99.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 230.52 ms. Allocated memory is still 200.3 MB. Free memory was 176.8 MB in the beginning and 165.1 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 700.86 ms. Allocated memory was 200.3 MB in the beginning and 224.4 MB in the end (delta: 24.1 MB). Free memory was 165.1 MB in the beginning and 196.2 MB in the end (delta: -31.1 MB). There was no memory consumed. 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...