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/loops/count_up_down-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:47:12,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:47:12,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:47:12,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:47:12,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:47:12,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:47:12,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:47:12,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:47:12,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:47:12,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:47:12,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:47:12,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:47:12,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:47:12,461 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:47:12,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:47:12,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:47:12,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:47:12,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:47:12,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:47:12,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:47:12,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:47:12,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:47:12,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:47:12,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:47:12,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:47:12,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:47:12,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:47:12,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:47:12,478 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:47:12,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:47:12,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:47:12,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:47:12,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:47:12,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:47:12,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:47:12,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:47:12,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:47:12,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:47:12,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:47:12,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:47:12,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:47:12,487 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 13:47:12,502 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:47:12,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:47:12,503 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:47:12,503 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:47:12,504 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:47:12,504 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:47:12,504 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:47:12,504 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:47:12,504 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:47:12,505 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:47:12,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:47:12,505 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:47:12,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:47:12,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:47:12,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:47:12,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:47:12,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:47:12,507 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:47:12,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:47:12,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:47:12,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:47:12,508 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:47:12,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:47:12,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:47:12,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:47:12,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:47:12,509 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:47:12,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:47:12,509 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:47:12,509 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:47:12,537 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:47:12,549 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:47:12,553 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:47:12,554 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:47:12,554 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:47:12,555 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/count_up_down-2.c [2019-09-20 13:47:12,617 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b00f6291/d1a173e06c8c4238ba07a85c4e9068fd/FLAG5ed914aaa [2019-09-20 13:47:13,069 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:47:13,070 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/count_up_down-2.c [2019-09-20 13:47:13,076 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b00f6291/d1a173e06c8c4238ba07a85c4e9068fd/FLAG5ed914aaa [2019-09-20 13:47:13,456 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b00f6291/d1a173e06c8c4238ba07a85c4e9068fd [2019-09-20 13:47:13,464 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:47:13,465 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:47:13,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:47:13,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:47:13,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:47:13,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:47:13" (1/1) ... [2019-09-20 13:47:13,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a78415a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:13, skipping insertion in model container [2019-09-20 13:47:13,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:47:13" (1/1) ... [2019-09-20 13:47:13,480 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:47:13,492 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:47:13,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:47:13,674 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:47:13,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:47:13,702 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:47:13,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:13 WrapperNode [2019-09-20 13:47:13,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:47:13,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:47:13,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:47:13,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:47:13,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:13" (1/1) ... [2019-09-20 13:47:13,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:13" (1/1) ... [2019-09-20 13:47:13,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:13" (1/1) ... [2019-09-20 13:47:13,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:13" (1/1) ... [2019-09-20 13:47:13,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:13" (1/1) ... [2019-09-20 13:47:13,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:13" (1/1) ... [2019-09-20 13:47:13,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:13" (1/1) ... [2019-09-20 13:47:13,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:47:13,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:47:13,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:47:13,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:47:13,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:13" (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 13:47:13,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:47:13,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:47:13,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 13:47:13,891 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:47:13,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:47:13,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 13:47:13,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-20 13:47:13,891 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:47:13,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:47:13,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:47:14,063 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:47:14,063 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 13:47:14,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:47:14 BoogieIcfgContainer [2019-09-20 13:47:14,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:47:14,065 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-20 13:47:14,066 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-20 13:47:14,066 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-20 13:47:14,067 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:47:14" (1/1) ... [2019-09-20 13:47:14,091 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:47:14,168 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-20 13:47:14,327 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-20 13:47:14,347 INFO L272 AbstractInterpreter]: Visited 19 different actions 71 times. Merged at 4 different actions 16 times. Widened at 1 different actions 2 times. Performed 94 root evaluator evaluations with a maximum evaluation depth of 8. Performed 94 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Found 5 fixpoints after 2 different actions. Largest state had 7 variables. [2019-09-20 13:47:14,348 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-20 13:47:14,353 INFO L168 Benchmark]: Toolchain (without parser) took 884.47 ms. Allocated memory was 131.1 MB in the beginning and 199.2 MB in the end (delta: 68.2 MB). Free memory was 85.7 MB in the beginning and 150.1 MB in the end (delta: -64.3 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:14,354 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 131.1 MB. Free memory is still 103.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:47:14,357 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.93 ms. Allocated memory is still 131.1 MB. Free memory was 85.3 MB in the beginning and 76.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:14,358 INFO L168 Benchmark]: Boogie Preprocessor took 123.91 ms. Allocated memory was 131.1 MB in the beginning and 199.2 MB in the end (delta: 68.2 MB). Free memory was 76.3 MB in the beginning and 176.3 MB in the end (delta: -100.0 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:14,359 INFO L168 Benchmark]: RCFGBuilder took 237.56 ms. Allocated memory is still 199.2 MB. Free memory was 175.4 MB in the beginning and 164.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:14,360 INFO L168 Benchmark]: Abstract Interpretation took 282.59 ms. Allocated memory is still 199.2 MB. Free memory was 164.1 MB in the beginning and 151.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:14,369 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 131.1 MB. Free memory is still 103.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 236.93 ms. Allocated memory is still 131.1 MB. Free memory was 85.3 MB in the beginning and 76.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.91 ms. Allocated memory was 131.1 MB in the beginning and 199.2 MB in the end (delta: 68.2 MB). Free memory was 76.3 MB in the beginning and 176.3 MB in the end (delta: -100.0 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 237.56 ms. Allocated memory is still 199.2 MB. Free memory was 175.4 MB in the beginning and 164.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 282.59 ms. Allocated memory is still 199.2 MB. Free memory was 164.1 MB in the beginning and 151.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 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: [L13] unsigned int n = __VERIFIER_nondet_uint(); [L14] unsigned int x=n, y=0; [L15] COND FALSE !(x>0) [L20] CALL __VERIFIER_assert(y!=n) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...