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-invariants/eq2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 12:38:16,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 12:38:16,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 12:38:16,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-03 12:38:16,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 12:38:16,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 12:38:16,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 12:38:16,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 12:38:16,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 12:38:16,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 12:38:16,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 12:38:16,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 12:38:16,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 12:38:16,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 12:38:16,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 12:38:16,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 12:38:16,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-03 12:38:16,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 12:38:16,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 12:38:16,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 12:38:16,253 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 12:38:16,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 12:38:16,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 12:38:16,255 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 12:38:16,255 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 12:38:16,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 12:38:16,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 12:38:16,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 12:38:16,258 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 [2019-10-03 12:38:16,273 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 12:38:16,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 12:38:16,274 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 12:38:16,274 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 12:38:16,275 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 12:38:16,275 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 12:38:16,275 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 12:38:16,275 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 12:38:16,276 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 12:38:16,276 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 12:38:16,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 12:38:16,277 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 12:38:16,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 12:38:16,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 12:38:16,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 12:38:16,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 12:38:16,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 12:38:16,278 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 12:38:16,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 12:38:16,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 12:38:16,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 12:38:16,279 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 12:38:16,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 12:38:16,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 12:38:16,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 12:38:16,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 12:38:16,280 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 12:38:16,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 12:38:16,280 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 12:38:16,280 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 12:38:16,309 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 12:38:16,325 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 12:38:16,329 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 12:38:16,330 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 12:38:16,330 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 12:38:16,331 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/eq2.c [2019-10-03 12:38:16,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f136ab63/263dad4f5f574762be67c7c8462b42ee/FLAG395cee0fa [2019-10-03 12:38:16,816 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 12:38:16,817 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/eq2.c [2019-10-03 12:38:16,823 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f136ab63/263dad4f5f574762be67c7c8462b42ee/FLAG395cee0fa [2019-10-03 12:38:17,257 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f136ab63/263dad4f5f574762be67c7c8462b42ee [2019-10-03 12:38:17,266 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 12:38:17,268 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 12:38:17,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 12:38:17,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 12:38:17,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 12:38:17,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:38:17" (1/1) ... [2019-10-03 12:38:17,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@209cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:17, skipping insertion in model container [2019-10-03 12:38:17,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:38:17" (1/1) ... [2019-10-03 12:38:17,283 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 12:38:17,296 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 12:38:17,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 12:38:17,475 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 12:38:17,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 12:38:17,498 INFO L192 MainTranslator]: Completed translation [2019-10-03 12:38:17,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:17 WrapperNode [2019-10-03 12:38:17,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 12:38:17,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 12:38:17,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 12:38:17,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 12:38:17,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:17" (1/1) ... [2019-10-03 12:38:17,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:17" (1/1) ... [2019-10-03 12:38:17,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:17" (1/1) ... [2019-10-03 12:38:17,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:17" (1/1) ... [2019-10-03 12:38:17,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:17" (1/1) ... [2019-10-03 12:38:17,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:17" (1/1) ... [2019-10-03 12:38:17,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:17" (1/1) ... [2019-10-03 12:38:17,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 12:38:17,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 12:38:17,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 12:38:17,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 12:38:17,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:17" (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 [2019-10-03 12:38:17,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 12:38:17,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 12:38:17,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-03 12:38:17,694 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 12:38:17,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 12:38:17,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-03 12:38:17,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-03 12:38:17,694 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 12:38:17,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 12:38:17,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 12:38:17,849 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 12:38:17,850 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-03 12:38:17,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:38:17 BoogieIcfgContainer [2019-10-03 12:38:17,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 12:38:17,852 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-03 12:38:17,852 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-03 12:38:17,852 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-03 12:38:17,853 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:38:17" (1/1) ... [2019-10-03 12:38:17,876 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 12:38:17,959 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-10-03 12:38:18,010 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-03 12:38:18,031 INFO L272 AbstractInterpreter]: Visited 20 different actions 20 times. Never merged. Never widened. Performed 22 root evaluator evaluations with a maximum evaluation depth of 7. Performed 22 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Found 1 fixpoints after 1 different actions. Largest state had 9 variables. [2019-10-03 12:38:18,031 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-03 12:38:18,034 INFO L168 Benchmark]: Toolchain (without parser) took 765.73 ms. Allocated memory was 133.2 MB in the beginning and 201.9 MB in the end (delta: 68.7 MB). Free memory was 89.0 MB in the beginning and 159.7 MB in the end (delta: -70.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 12:38:18,036 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 12:38:18,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.70 ms. Allocated memory is still 133.2 MB. Free memory was 88.8 MB in the beginning and 79.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-03 12:38:18,039 INFO L168 Benchmark]: Boogie Preprocessor took 137.14 ms. Allocated memory was 133.2 MB in the beginning and 201.9 MB in the end (delta: 68.7 MB). Free memory was 79.2 MB in the beginning and 178.7 MB in the end (delta: -99.5 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. [2019-10-03 12:38:18,040 INFO L168 Benchmark]: RCFGBuilder took 214.23 ms. Allocated memory is still 201.9 MB. Free memory was 178.7 MB in the beginning and 167.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2019-10-03 12:38:18,041 INFO L168 Benchmark]: Abstract Interpretation took 179.55 ms. Allocated memory is still 201.9 MB. Free memory was 167.0 MB in the beginning and 159.7 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 7.1 GB. [2019-10-03 12:38:18,047 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 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 230.70 ms. Allocated memory is still 133.2 MB. Free memory was 88.8 MB in the beginning and 79.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.14 ms. Allocated memory was 133.2 MB in the beginning and 201.9 MB in the end (delta: 68.7 MB). Free memory was 79.2 MB in the beginning and 178.7 MB in the end (delta: -99.5 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 214.23 ms. Allocated memory is still 201.9 MB. Free memory was 178.7 MB in the beginning and 167.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 179.55 ms. Allocated memory is still 201.9 MB. Free memory was 167.0 MB in the beginning and 159.7 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 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: [L10] unsigned int w = __VERIFIER_nondet_uint(); [L11] unsigned int x = w; [L12] unsigned int y = w + 1; [L13] unsigned int z = x + 1; [L14] COND FALSE !(__VERIFIER_nondet_uint()) [L18] CALL __VERIFIER_assert(y == z) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...