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/diamond_2-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-0883e75 [2019-09-05 13:34:46,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-05 13:34:46,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-05 13:34:46,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-05 13:34:46,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-05 13:34:46,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-05 13:34:46,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-05 13:34:46,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-05 13:34:46,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-05 13:34:46,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-05 13:34:46,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-05 13:34:46,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-05 13:34:46,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-05 13:34:46,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-05 13:34:46,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-05 13:34:46,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-05 13:34:46,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-05 13:34:46,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-05 13:34:46,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-05 13:34:46,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-05 13:34:46,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-05 13:34:46,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-05 13:34:46,386 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-05 13:34:46,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-05 13:34:46,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-05 13:34:46,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-05 13:34:46,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-05 13:34:46,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-05 13:34:46,392 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 [2019-09-05 13:34:46,416 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-05 13:34:46,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-05 13:34:46,417 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-05 13:34:46,418 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-05 13:34:46,418 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-05 13:34:46,418 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-05 13:34:46,419 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-05 13:34:46,419 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-05 13:34:46,419 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-05 13:34:46,419 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-05 13:34:46,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-05 13:34:46,422 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-05 13:34:46,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-05 13:34:46,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-05 13:34:46,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-05 13:34:46,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-05 13:34:46,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-05 13:34:46,423 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-05 13:34:46,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-05 13:34:46,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-05 13:34:46,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-05 13:34:46,424 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-05 13:34:46,424 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-05 13:34:46,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-05 13:34:46,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-05 13:34:46,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-05 13:34:46,425 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-05 13:34:46,426 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-05 13:34:46,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-05 13:34:46,426 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-05 13:34:46,477 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-05 13:34:46,495 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-05 13:34:46,498 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-05 13:34:46,500 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-05 13:34:46,500 INFO L275 PluginConnector]: CDTParser initialized [2019-09-05 13:34:46,501 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/diamond_2-2.c [2019-09-05 13:34:46,571 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/524554164/efe49bca2c024a2db10b2284c44f23c8/FLAG07c35d64e [2019-09-05 13:34:47,003 INFO L306 CDTParser]: Found 1 translation units. [2019-09-05 13:34:47,005 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/diamond_2-2.c [2019-09-05 13:34:47,015 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/524554164/efe49bca2c024a2db10b2284c44f23c8/FLAG07c35d64e [2019-09-05 13:34:47,373 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/524554164/efe49bca2c024a2db10b2284c44f23c8 [2019-09-05 13:34:47,384 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-05 13:34:47,385 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-05 13:34:47,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-05 13:34:47,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-05 13:34:47,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-05 13:34:47,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 01:34:47" (1/1) ... [2019-09-05 13:34:47,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13d8957a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:34:47, skipping insertion in model container [2019-09-05 13:34:47,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 01:34:47" (1/1) ... [2019-09-05 13:34:47,401 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-05 13:34:47,418 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-05 13:34:47,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 13:34:47,592 INFO L188 MainTranslator]: Completed pre-run [2019-09-05 13:34:47,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 13:34:47,627 INFO L192 MainTranslator]: Completed translation [2019-09-05 13:34:47,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:34:47 WrapperNode [2019-09-05 13:34:47,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-05 13:34:47,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-05 13:34:47,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-05 13:34:47,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-05 13:34:47,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:34:47" (1/1) ... [2019-09-05 13:34:47,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:34:47" (1/1) ... [2019-09-05 13:34:47,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:34:47" (1/1) ... [2019-09-05 13:34:47,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:34:47" (1/1) ... [2019-09-05 13:34:47,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:34:47" (1/1) ... [2019-09-05 13:34:47,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:34:47" (1/1) ... [2019-09-05 13:34:47,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:34:47" (1/1) ... [2019-09-05 13:34:47,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-05 13:34:47,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-05 13:34:47,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-05 13:34:47,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-05 13:34:47,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:34:47" (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 [2019-09-05 13:34:47,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-05 13:34:47,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-05 13:34:47,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-05 13:34:47,813 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-05 13:34:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-05 13:34:47,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-05 13:34:47,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-05 13:34:47,814 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-05 13:34:47,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-05 13:34:47,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-05 13:34:48,070 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-05 13:34:48,071 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-05 13:34:48,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 01:34:48 BoogieIcfgContainer [2019-09-05 13:34:48,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-05 13:34:48,073 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-05 13:34:48,073 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-05 13:34:48,073 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-05 13:34:48,074 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 01:34:48" (1/1) ... [2019-09-05 13:34:48,110 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-05 13:34:48,214 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-05 13:34:53,361 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-05 13:34:53,380 INFO L272 AbstractInterpreter]: Visited 39 different actions 752 times. Merged at 21 different actions 324 times. Widened at 2 different actions 4 times. Performed 2820 root evaluator evaluations with a maximum evaluation depth of 14. Performed 2820 inverse root evaluator evaluations with a maximum inverse evaluation depth of 14. Found 296 fixpoints after 18 different actions. Largest state had 5 variables. [2019-09-05 13:34:53,380 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-05 13:34:53,383 INFO L168 Benchmark]: Toolchain (without parser) took 5996.55 ms. Allocated memory was 132.1 MB in the beginning and 769.7 MB in the end (delta: 637.5 MB). Free memory was 87.9 MB in the beginning and 398.7 MB in the end (delta: -310.9 MB). Peak memory consumption was 326.7 MB. Max. memory is 7.1 GB. [2019-09-05 13:34:53,384 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 132.1 MB. Free memory was 106.3 MB in the beginning and 106.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-05 13:34:53,385 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.78 ms. Allocated memory is still 132.1 MB. Free memory was 87.7 MB in the beginning and 77.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-09-05 13:34:53,388 INFO L168 Benchmark]: Boogie Preprocessor took 129.25 ms. Allocated memory was 132.1 MB in the beginning and 199.8 MB in the end (delta: 67.6 MB). Free memory was 77.8 MB in the beginning and 176.2 MB in the end (delta: -98.5 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-09-05 13:34:53,392 INFO L168 Benchmark]: RCFGBuilder took 314.54 ms. Allocated memory is still 199.8 MB. Free memory was 176.2 MB in the beginning and 160.4 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2019-09-05 13:34:53,393 INFO L168 Benchmark]: Abstract Interpretation took 5307.01 ms. Allocated memory was 199.8 MB in the beginning and 769.7 MB in the end (delta: 569.9 MB). Free memory was 160.4 MB in the beginning and 398.7 MB in the end (delta: -238.3 MB). Peak memory consumption was 331.6 MB. Max. memory is 7.1 GB. [2019-09-05 13:34:53,398 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 132.1 MB. Free memory was 106.3 MB in the beginning and 106.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 241.78 ms. Allocated memory is still 132.1 MB. Free memory was 87.7 MB in the beginning and 77.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.25 ms. Allocated memory was 132.1 MB in the beginning and 199.8 MB in the end (delta: 67.6 MB). Free memory was 77.8 MB in the beginning and 176.2 MB in the end (delta: -98.5 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 314.54 ms. Allocated memory is still 199.8 MB. Free memory was 176.2 MB in the beginning and 160.4 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 5307.01 ms. Allocated memory was 199.8 MB in the beginning and 769.7 MB in the end (delta: 569.9 MB). Free memory was 160.4 MB in the beginning and 398.7 MB in the end (delta: -238.3 MB). Peak memory consumption was 331.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 6]: 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: [L12] unsigned int x = 0; [L13] unsigned int y = __VERIFIER_nondet_uint(); [L15] COND FALSE !(x < 99) [L47] CALL __VERIFIER_assert((x % 2) == (y % 2)) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...