./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test18.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/test18.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 3bdf2cb07df28eeba3e91ce6104175f18bd37d0c ................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:58:34,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:58:34,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:58:34,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:58:34,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:58:34,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:58:34,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:58:34,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:58:34,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:58:34,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:58:34,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:58:34,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:58:34,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:58:34,588 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:58:34,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:58:34,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:58:34,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:58:34,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:58:34,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:58:34,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:58:34,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:58:34,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:58:34,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:58:34,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:58:34,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:58:34,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:58:34,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:58:34,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:58:34,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:58:34,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:58:34,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:58:34,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:58:34,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:58:34,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:58:34,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:58:34,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:58:34,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:58:34,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:58:34,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:58:34,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:58:34,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:58:34,617 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:58:34,631 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:58:34,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:58:34,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:58:34,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:58:34,634 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:58:34,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:58:34,634 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:58:34,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:58:34,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:58:34,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:58:34,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:58:34,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:58:34,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:58:34,636 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:58:34,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:58:34,637 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:58:34,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:58:34,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:58:34,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:58:34,638 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:58:34,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:58:34,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:58:34,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:58:34,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:58:34,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:58:34,640 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:58:34,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:58:34,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:58:34,641 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:58:34,641 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 -> 3bdf2cb07df28eeba3e91ce6104175f18bd37d0c [2020-07-28 17:58:34,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:58:34,974 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:58:34,978 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:58:34,979 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:58:34,980 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:58:34,981 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test18.c [2020-07-28 17:58:35,042 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86715fac7/b2a93fce130746bb8a09e1a723c1d459/FLAG768f582f4 [2020-07-28 17:58:35,522 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:58:35,523 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test18.c [2020-07-28 17:58:35,529 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86715fac7/b2a93fce130746bb8a09e1a723c1d459/FLAG768f582f4 [2020-07-28 17:58:35,899 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86715fac7/b2a93fce130746bb8a09e1a723c1d459 [2020-07-28 17:58:35,902 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:58:35,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:58:35,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:58:35,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:58:35,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:58:35,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:58:35" (1/1) ... [2020-07-28 17:58:35,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f8533d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:35, skipping insertion in model container [2020-07-28 17:58:35,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:58:35" (1/1) ... [2020-07-28 17:58:35,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:58:35,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:58:36,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:58:36,177 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:58:36,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:58:36,214 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:58:36,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:36 WrapperNode [2020-07-28 17:58:36,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:58:36,217 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:58:36,217 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:58:36,217 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:58:36,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:36" (1/1) ... [2020-07-28 17:58:36,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:36" (1/1) ... [2020-07-28 17:58:36,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:58:36,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:58:36,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:58:36,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:58:36,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:36" (1/1) ... [2020-07-28 17:58:36,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:36" (1/1) ... [2020-07-28 17:58:36,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:36" (1/1) ... [2020-07-28 17:58:36,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:36" (1/1) ... [2020-07-28 17:58:36,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:36" (1/1) ... [2020-07-28 17:58:36,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:36" (1/1) ... [2020-07-28 17:58:36,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:36" (1/1) ... [2020-07-28 17:58:36,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:58:36,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:58:36,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:58:36,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:58:36,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:36" (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 17:58:36,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 17:58:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-28 17:58:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:58:36,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:58:36,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:58:36,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:58:36,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-28 17:58:36,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:58:36,713 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:58:36,714 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 17:58:36,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:58:36 BoogieIcfgContainer [2020-07-28 17:58:36,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:58:36,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:58:36,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:58:36,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:58:36,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:58:35" (1/3) ... [2020-07-28 17:58:36,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756ab001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:58:36, skipping insertion in model container [2020-07-28 17:58:36,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:36" (2/3) ... [2020-07-28 17:58:36,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756ab001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:58:36, skipping insertion in model container [2020-07-28 17:58:36,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:58:36" (3/3) ... [2020-07-28 17:58:36,735 INFO L109 eAbstractionObserver]: Analyzing ICFG test18.c [2020-07-28 17:58:36,755 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:58:36,764 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:58:36,800 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:58:36,828 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:58:36,828 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:58:36,828 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:58:36,828 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:58:36,829 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:58:36,829 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:58:36,829 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:58:36,829 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:58:36,851 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-07-28 17:58:36,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-07-28 17:58:36,862 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:58:36,863 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-07-28 17:58:36,864 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:58:36,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:58:36,870 INFO L82 PathProgramCache]: Analyzing trace with hash 889475945, now seen corresponding path program 1 times [2020-07-28 17:58:36,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:58:36,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219454689] [2020-07-28 17:58:36,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:58:36,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:58:37,131 INFO L280 TraceCheckUtils]: 0: Hoare triple {13#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {13#true} is VALID [2020-07-28 17:58:37,136 INFO L280 TraceCheckUtils]: 1: Hoare triple {13#true} havoc main_#res;havoc main_#t~mem2, main_~#a~0.base, main_~#a~0.offset, main_~#b~0.base, main_~#b~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);f_#in~pa.base, f_#in~pa.offset, f_#in~pb.base, f_#in~pb.offset := main_~#a~0.base, main_~#a~0.offset, main_~#b~0.base, main_~#b~0.offset;havoc f_#t~mem1.base, f_#t~mem1.offset, f_~#pa.base, f_~#pa.offset, f_~#pb.base, f_~#pb.offset;call f_~#pa.base, f_~#pa.offset := #Ultimate.allocOnStack(4);call write~$Pointer$(f_#in~pa.base, f_#in~pa.offset, f_~#pa.base, f_~#pa.offset, 4);call f_~#pb.base, f_~#pb.offset := #Ultimate.allocOnStack(4);call write~$Pointer$(f_#in~pb.base, f_#in~pb.offset, f_~#pb.base, f_~#pb.offset, 4);g_#in~ppa.base, g_#in~ppa.offset, g_#in~ppb.base, g_#in~ppb.offset := f_~#pa.base, f_~#pa.offset, f_~#pb.base, f_~#pb.offset;havoc g_#t~mem0.base, g_#t~mem0.offset, g_~ppa.base, g_~ppa.offset, g_~ppb.base, g_~ppb.offset;g_~ppa.base, g_~ppa.offset := g_#in~ppa.base, g_#in~ppa.offset;g_~ppb.base, g_~ppb.offset := g_#in~ppb.base, g_#in~ppb.offset;call g_#t~mem0.base, g_#t~mem0.offset := read~$Pointer$(g_~ppb.base, g_~ppb.offset, 4);call write~$Pointer$(g_#t~mem0.base, g_#t~mem0.offset, g_~ppa.base, g_~ppa.offset, 4);havoc g_#t~mem0.base, g_#t~mem0.offset; {15#(and (= |ULTIMATE.start_main_~#b~0.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_f_~#pa.base|) |ULTIMATE.start_f_~#pa.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_f_~#pa.base|) |ULTIMATE.start_f_~#pa.offset|) |ULTIMATE.start_main_~#b~0.offset|))} is VALID [2020-07-28 17:58:37,137 INFO L280 TraceCheckUtils]: 2: Hoare triple {15#(and (= |ULTIMATE.start_main_~#b~0.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_f_~#pa.base|) |ULTIMATE.start_f_~#pa.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_f_~#pa.base|) |ULTIMATE.start_f_~#pa.offset|) |ULTIMATE.start_main_~#b~0.offset|))} call f_#t~mem1.base, f_#t~mem1.offset := read~$Pointer$(f_~#pa.base, f_~#pa.offset, 4);call write~int(0, f_#t~mem1.base, f_#t~mem1.offset, 4);havoc f_#t~mem1.base, f_#t~mem1.offset;call ULTIMATE.dealloc(f_~#pa.base, f_~#pa.offset);havoc f_~#pa.base, f_~#pa.offset;call ULTIMATE.dealloc(f_~#pb.base, f_~#pb.offset);havoc f_~#pb.base, f_~#pb.offset; {16#(= 0 (select (select |#memory_int| |ULTIMATE.start_main_~#b~0.base|) |ULTIMATE.start_main_~#b~0.offset|))} is VALID [2020-07-28 17:58:37,139 INFO L280 TraceCheckUtils]: 3: Hoare triple {16#(= 0 (select (select |#memory_int| |ULTIMATE.start_main_~#b~0.base|) |ULTIMATE.start_main_~#b~0.offset|))} call main_#t~mem2 := read~int(main_~#b~0.base, main_~#b~0.offset, 4); {17#(= 0 |ULTIMATE.start_main_#t~mem2|)} is VALID [2020-07-28 17:58:37,140 INFO L280 TraceCheckUtils]: 4: Hoare triple {17#(= 0 |ULTIMATE.start_main_#t~mem2|)} assume 0 != main_#t~mem2;havoc main_#t~mem2; {14#false} is VALID [2020-07-28 17:58:37,140 INFO L280 TraceCheckUtils]: 5: Hoare triple {14#false} assume !false; {14#false} is VALID [2020-07-28 17:58:37,143 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 17:58:37,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219454689] [2020-07-28 17:58:37,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:58:37,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 17:58:37,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956330379] [2020-07-28 17:58:37,152 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2020-07-28 17:58:37,153 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:58:37,156 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 17:58:37,179 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 17:58:37,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 17:58:37,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:58:37,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 17:58:37,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 17:58:37,193 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 5 states. [2020-07-28 17:58:37,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:58:37,315 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2020-07-28 17:58:37,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 17:58:37,315 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2020-07-28 17:58:37,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:58:37,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 17:58:37,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2020-07-28 17:58:37,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 17:58:37,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2020-07-28 17:58:37,325 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 12 transitions. [2020-07-28 17:58:37,352 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:58:37,360 INFO L225 Difference]: With dead ends: 13 [2020-07-28 17:58:37,360 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 17:58:37,364 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-28 17:58:37,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 17:58:37,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 17:58:37,388 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:58:37,389 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 17:58:37,390 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:58:37,390 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:58:37,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:58:37,391 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:58:37,391 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:58:37,391 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:58:37,391 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:58:37,391 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:58:37,392 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:58:37,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:58:37,392 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:58:37,392 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:58:37,392 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:58:37,393 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:58:37,393 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:58:37,393 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:58:37,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 17:58:37,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 17:58:37,395 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2020-07-28 17:58:37,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:58:37,395 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 17:58:37,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 17:58:37,396 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:58:37,396 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:58:37,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:58:37,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 17:58:37,415 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 17:58:37,415 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-07-28 17:58:37,415 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 17:58:37,415 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 17:58:37,415 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2020-07-28 17:58:37,416 INFO L271 CegarLoopResult]: At program point L23(lines 13 24) the Hoare annotation is: true [2020-07-28 17:58:37,416 INFO L264 CegarLoopResult]: At program point L17(lines 13 24) the Hoare annotation is: false [2020-07-28 17:58:37,416 INFO L268 CegarLoopResult]: For program point L16(lines 16 18) no Hoare annotation was computed. [2020-07-28 17:58:37,416 INFO L268 CegarLoopResult]: For program point L8(lines 8 11) no Hoare annotation was computed. [2020-07-28 17:58:37,416 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-07-28 17:58:37,421 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:58:37,421 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:58:37,421 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-28 17:58:37,421 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-28 17:58:37,421 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-28 17:58:37,421 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-28 17:58:37,422 WARN L170 areAnnotationChecker]: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION has no Hoare annotation [2020-07-28 17:58:37,422 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:58:37,422 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:58:37,422 INFO L163 areAnnotationChecker]: CFG has 1 edges. 1 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:58:37,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:58:37 BoogieIcfgContainer [2020-07-28 17:58:37,430 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:58:37,430 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:58:37,430 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:58:37,431 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:58:37,431 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:58:36" (3/4) ... [2020-07-28 17:58:37,435 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 17:58:37,445 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-07-28 17:58:37,445 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-07-28 17:58:37,445 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 17:58:37,486 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:58:37,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:58:37,490 INFO L168 Benchmark]: Toolchain (without parser) took 1585.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -96.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:37,490 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:58:37,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.35 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 950.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:37,492 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:37,492 INFO L168 Benchmark]: Boogie Preprocessor took 28.42 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 17:58:37,493 INFO L168 Benchmark]: RCFGBuilder took 362.91 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: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:37,494 INFO L168 Benchmark]: TraceAbstraction took 710.63 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: 46.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:37,494 INFO L168 Benchmark]: Witness Printer took 56.01 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 17:58:37,498 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 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 309.35 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 950.8 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 109.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.42 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 362.91 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: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 710.63 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: 46.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 11.5 GB. * Witness Printer took 56.01 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 1 SDslu, 9 SDs, 0 SdLazy, 11 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 135 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 correct! Received shutdown request...