./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test06.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-regression/test06.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eae8c8207b0324f06a17c285b94ce79cd751d6f9 ........................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:58:26,451 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:58:26,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:58:26,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:58:26,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:58:26,468 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:58:26,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:58:26,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:58:26,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:58:26,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:58:26,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:58:26,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:58:26,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:58:26,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:58:26,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:58:26,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:58:26,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:58:26,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:58:26,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:58:26,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:58:26,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:58:26,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:58:26,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:58:26,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:58:26,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:58:26,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:58:26,496 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:58:26,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:58:26,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:58:26,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:58:26,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:58:26,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:58:26,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:58:26,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:58:26,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:58:26,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:58:26,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:58:26,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:58:26,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:58:26,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:58:26,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:58:26,506 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:58:26,521 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:58:26,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:58:26,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:58:26,523 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:58:26,523 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:58:26,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:58:26,524 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:58:26,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:58:26,524 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:58:26,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:58:26,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:58:26,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:58:26,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:58:26,526 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:58:26,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:58:26,526 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:58:26,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:58:26,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:58:26,527 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:58:26,527 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:58:26,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:58:26,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:58:26,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:58:26,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:58:26,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:58:26,528 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:58:26,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:58:26,529 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:58:26,529 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:58:26,529 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eae8c8207b0324f06a17c285b94ce79cd751d6f9 [2020-07-28 17:58:26,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:58:26,863 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:58:26,867 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:58:26,868 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:58:26,868 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:58:26,869 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test06.c [2020-07-28 17:58:26,929 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dca39ae3/9beb9f1073b74d01bb0412ee4d255d1f/FLAGd5205be28 [2020-07-28 17:58:27,394 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:58:27,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test06.c [2020-07-28 17:58:27,402 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dca39ae3/9beb9f1073b74d01bb0412ee4d255d1f/FLAGd5205be28 [2020-07-28 17:58:27,773 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dca39ae3/9beb9f1073b74d01bb0412ee4d255d1f [2020-07-28 17:58:27,776 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:58:27,779 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:58:27,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:58:27,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:58:27,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:58:27,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:58:27" (1/1) ... [2020-07-28 17:58:27,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5952bf56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:27, skipping insertion in model container [2020-07-28 17:58:27,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:58:27" (1/1) ... [2020-07-28 17:58:27,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:58:27,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:58:28,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:58:28,017 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:58:28,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:58:28,056 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:58:28,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:28 WrapperNode [2020-07-28 17:58:28,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:58:28,058 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:58:28,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:58:28,058 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:58:28,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:28" (1/1) ... [2020-07-28 17:58:28,077 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:28" (1/1) ... [2020-07-28 17:58:28,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:58:28,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:58:28,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:58:28,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:58:28,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:28" (1/1) ... [2020-07-28 17:58:28,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:28" (1/1) ... [2020-07-28 17:58:28,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:28" (1/1) ... [2020-07-28 17:58:28,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:28" (1/1) ... [2020-07-28 17:58:28,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:28" (1/1) ... [2020-07-28 17:58:28,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:28" (1/1) ... [2020-07-28 17:58:28,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:28" (1/1) ... [2020-07-28 17:58:28,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:58:28,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:58:28,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:58:28,195 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:58:28,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:28" (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 [2020-07-28 17:58:28,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 17:58:28,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-28 17:58:28,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:58:28,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:58:28,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:58:28,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:58:28,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-28 17:58:28,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:58:28,642 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:58:28,643 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 17:58:28,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:58:28 BoogieIcfgContainer [2020-07-28 17:58:28,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:58:28,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:58:28,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:58:28,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:58:28,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:58:27" (1/3) ... [2020-07-28 17:58:28,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e13e05d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:58:28, skipping insertion in model container [2020-07-28 17:58:28,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:28" (2/3) ... [2020-07-28 17:58:28,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e13e05d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:58:28, skipping insertion in model container [2020-07-28 17:58:28,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:58:28" (3/3) ... [2020-07-28 17:58:28,660 INFO L109 eAbstractionObserver]: Analyzing ICFG test06.c [2020-07-28 17:58:28,673 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:58:28,682 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:58:28,701 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:58:28,728 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:58:28,728 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:58:28,728 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:58:28,729 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:58:28,729 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:58:28,729 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:58:28,729 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:58:28,729 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:58:28,746 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-07-28 17:58:28,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-07-28 17:58:28,753 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:58:28,754 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-07-28 17:58:28,754 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:58:28,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:58:28,761 INFO L82 PathProgramCache]: Analyzing trace with hash 889629865, now seen corresponding path program 1 times [2020-07-28 17:58:28,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:58:28,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389612319] [2020-07-28 17:58:28,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:58:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:58:29,026 INFO L280 TraceCheckUtils]: 0: Hoare triple {14#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {14#true} is VALID [2020-07-28 17:58:29,034 INFO L280 TraceCheckUtils]: 1: Hoare triple {14#true} havoc main_#res;havoc main_#t~mem2, main_#t~post3, main_#t~mem4, main_#t~ret5, main_#t~mem6.base, main_#t~mem6.offset, main_#t~mem7, main_~#a~0.base, main_~#a~0.offset, main_~#b~0.base, main_~#b~0.offset, main_~#p1~0.base, main_~#p1~0.offset, main_~#p2~0.base, main_~#p2~0.offset;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4);call main_~#b~0.base, main_~#b~0.offset := #Ultimate.allocOnStack(4);call main_~#p1~0.base, main_~#p1~0.offset := #Ultimate.allocOnStack(4);call main_~#p2~0.base, main_~#p2~0.offset := #Ultimate.allocOnStack(4);call write~$Pointer$(main_~#a~0.base, main_~#a~0.offset, main_~#p1~0.base, main_~#p1~0.offset, 4);call write~$Pointer$(main_~#b~0.base, main_~#b~0.offset, main_~#p2~0.base, main_~#p2~0.offset, 4);call write~int(1, main_~#b~0.base, main_~#b~0.offset, 4);call write~int(5, main_~#a~0.base, main_~#a~0.offset, 4);call main_#t~mem2 := read~int(main_~#a~0.base, main_~#a~0.offset, 4);main_#t~post3 := main_#t~mem2;call write~int(main_#t~post3 - 1, main_~#a~0.base, main_~#a~0.offset, 4);havoc main_#t~post3;havoc main_#t~mem2;call main_#t~mem4 := read~int(main_~#a~0.base, main_~#a~0.offset, 4);f_#in~a, f_#in~p1.base, f_#in~p1.offset, f_#in~p2.base, f_#in~p2.offset := main_#t~mem4, main_~#p1~0.base, main_~#p1~0.offset, main_~#p2~0.base, main_~#p2~0.offset;havoc f_#res;havoc f_~a, f_~p1.base, f_~p1.offset, f_~p2.base, f_~p2.offset;f_~a := f_#in~a;f_~p1.base, f_~p1.offset := f_#in~p1.base, f_#in~p1.offset;f_~p2.base, f_~p2.offset := f_#in~p2.base, f_#in~p2.offset; {16#(= ULTIMATE.start_f_~a 4)} is VALID [2020-07-28 17:58:29,036 INFO L280 TraceCheckUtils]: 2: Hoare triple {16#(= ULTIMATE.start_f_~a 4)} assume !(4 == f_~a);f_#res := 0; {15#false} is VALID [2020-07-28 17:58:29,036 INFO L280 TraceCheckUtils]: 3: Hoare triple {15#false} main_#t~ret5 := f_#res;assume -2147483648 <= main_#t~ret5 && main_#t~ret5 <= 2147483647;call write~int(main_#t~ret5, main_~#a~0.base, main_~#a~0.offset, 4);havoc main_#t~ret5;havoc main_#t~mem4;call main_#t~mem6.base, main_#t~mem6.offset := read~$Pointer$(main_~#p1~0.base, main_~#p1~0.offset, 4);call main_#t~mem7 := read~int(main_#t~mem6.base, main_#t~mem6.offset, 4); {15#false} is VALID [2020-07-28 17:58:29,037 INFO L280 TraceCheckUtils]: 4: Hoare triple {15#false} assume 0 == main_#t~mem7;havoc main_#t~mem7;havoc main_#t~mem6.base, main_#t~mem6.offset; {15#false} is VALID [2020-07-28 17:58:29,038 INFO L280 TraceCheckUtils]: 5: Hoare triple {15#false} assume !false; {15#false} is VALID [2020-07-28 17:58:29,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:58:29,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389612319] [2020-07-28 17:58:29,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:58:29,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 17:58:29,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599032669] [2020-07-28 17:58:29,054 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-07-28 17:58:29,056 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:58:29,063 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 17:58:29,087 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:58:29,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 17:58:29,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:58:29,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 17:58:29,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 17:58:29,100 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2020-07-28 17:58:29,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:58:29,169 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2020-07-28 17:58:29,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 17:58:29,169 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-07-28 17:58:29,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:58:29,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 17:58:29,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2020-07-28 17:58:29,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 17:58:29,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2020-07-28 17:58:29,179 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 19 transitions. [2020-07-28 17:58:29,219 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:58:29,230 INFO L225 Difference]: With dead ends: 18 [2020-07-28 17:58:29,231 INFO L226 Difference]: Without dead ends: 8 [2020-07-28 17:58:29,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 17:58:29,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-07-28 17:58:29,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-07-28 17:58:29,268 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:58:29,269 INFO L82 GeneralOperation]: Start isEquivalent. First operand 8 states. Second operand 8 states. [2020-07-28 17:58:29,270 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states. Second operand 8 states. [2020-07-28 17:58:29,270 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 8 states. [2020-07-28 17:58:29,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:58:29,272 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-07-28 17:58:29,273 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-07-28 17:58:29,273 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:58:29,273 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:58:29,274 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states. Second operand 8 states. [2020-07-28 17:58:29,274 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 8 states. [2020-07-28 17:58:29,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:58:29,275 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-07-28 17:58:29,276 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-07-28 17:58:29,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:58:29,276 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:58:29,276 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:58:29,277 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:58:29,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 17:58:29,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2020-07-28 17:58:29,280 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 6 [2020-07-28 17:58:29,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:58:29,280 INFO L479 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2020-07-28 17:58:29,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 17:58:29,280 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-07-28 17:58:29,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-28 17:58:29,281 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:58:29,281 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:58:29,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:58:29,282 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:58:29,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:58:29,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1804905802, now seen corresponding path program 1 times [2020-07-28 17:58:29,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:58:29,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197204087] [2020-07-28 17:58:29,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:58:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:58:29,418 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:58:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:58:29,542 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:58:29,570 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 17:58:29,571 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:58:29,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 17:58:29,609 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:58:29,610 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:58:29,610 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2020-07-28 17:58:29,610 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2020-07-28 17:58:29,610 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-28 17:58:29,610 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-28 17:58:29,611 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-28 17:58:29,611 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-28 17:58:29,611 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-28 17:58:29,611 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-28 17:58:29,612 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-28 17:58:29,612 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:58:29,612 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:58:29,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:58:29 BoogieIcfgContainer [2020-07-28 17:58:29,615 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:58:29,616 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:58:29,616 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:58:29,616 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:58:29,617 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:58:28" (3/4) ... [2020-07-28 17:58:29,620 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 17:58:29,686 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:58:29,687 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:58:29,690 INFO L168 Benchmark]: Toolchain (without parser) took 1911.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 956.2 MB in the beginning and 1.0 GB in the end (delta: -70.3 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:29,691 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:58:29,692 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.46 ms. Allocated memory is still 1.0 GB. Free memory was 956.2 MB in the beginning and 945.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:29,693 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -166.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:29,693 INFO L168 Benchmark]: Boogie Preprocessor took 25.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:58:29,694 INFO L168 Benchmark]: RCFGBuilder took 453.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:29,695 INFO L168 Benchmark]: TraceAbstraction took 965.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:29,695 INFO L168 Benchmark]: Witness Printer took 71.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:29,701 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 277.46 ms. Allocated memory is still 1.0 GB. Free memory was 956.2 MB in the beginning and 945.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 111.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -166.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 453.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 965.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 11.5 GB. * Witness Printer took 71.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 40]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L21] int a, b; [L22] int *p1, *p2; [L24] p1 = &a [L25] p2 = &b [L27] b = 1 [L28] a = 5 [L30] EXPR \read(a) [L30] a-- [L32] EXPR \read(a) [L12] COND TRUE a == 4 [L5] EXPR \read(**p2) [L5] int *pq = *p2; [L7] EXPR \read(**p2) [L7] *p1 = *p2 [L8] *pq = 0 [L14] return 1; [L32] a = f(a, &p1, &p2) [L34] EXPR \read(*p1) [L34] COND TRUE *p1 == 0 [L40] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 8 SDslu, 1 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 35 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...