./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2b2e0fcc-cca9-4e3e-abaa-144e032b0653/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2b2e0fcc-cca9-4e3e-abaa-144e032b0653/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2b2e0fcc-cca9-4e3e-abaa-144e032b0653/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2b2e0fcc-cca9-4e3e-abaa-144e032b0653/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2b2e0fcc-cca9-4e3e-abaa-144e032b0653/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2b2e0fcc-cca9-4e3e-abaa-144e032b0653/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 63f7c8c7ba82d0f06d2a9c7ce1330ebd768db6f2 ......................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 15:38:41,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:38:41,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:38:41,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:38:41,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:38:41,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:38:41,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:38:41,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:38:41,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:38:41,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:38:41,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:38:41,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:38:41,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:38:41,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:38:41,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:38:41,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:38:41,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:38:41,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:38:41,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:38:41,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:38:41,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:38:41,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:38:41,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:38:41,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:38:41,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:38:41,578 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:38:41,578 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:38:41,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:38:41,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:38:41,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:38:41,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:38:41,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:38:41,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:38:41,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:38:41,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:38:41,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:38:41,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:38:41,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:38:41,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:38:41,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:38:41,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:38:41,585 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2b2e0fcc-cca9-4e3e-abaa-144e032b0653/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 15:38:41,599 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:38:41,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:38:41,600 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 15:38:41,600 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 15:38:41,601 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 15:38:41,601 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 15:38:41,601 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 15:38:41,601 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 15:38:41,601 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 15:38:41,601 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 15:38:41,602 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 15:38:41,602 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 15:38:41,602 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 15:38:41,602 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 15:38:41,602 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 15:38:41,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:38:41,603 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:38:41,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:38:41,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:38:41,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:38:41,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:38:41,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:38:41,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:38:41,604 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:38:41,604 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:38:41,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:38:41,605 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:38:41,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:38:41,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:38:41,605 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:38:41,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:38:41,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:38:41,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:38:41,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:38:41,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:38:41,606 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 15:38:41,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:38:41,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:38:41,607 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:38:41,607 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:38:41,607 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_2b2e0fcc-cca9-4e3e-abaa-144e032b0653/bin/utaipan 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 -> Taipan 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 -> 63f7c8c7ba82d0f06d2a9c7ce1330ebd768db6f2 [2019-12-07 15:38:41,720 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:38:41,731 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:38:41,734 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:38:41,735 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:38:41,736 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:38:41,737 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2b2e0fcc-cca9-4e3e-abaa-144e032b0653/bin/utaipan/../../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2019-12-07 15:38:41,786 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2b2e0fcc-cca9-4e3e-abaa-144e032b0653/bin/utaipan/data/cb95621ec/141d191656be43fbb9a76124d99eb55d/FLAG51ab40e25 [2019-12-07 15:38:42,089 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:38:42,090 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2b2e0fcc-cca9-4e3e-abaa-144e032b0653/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2019-12-07 15:38:42,093 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2b2e0fcc-cca9-4e3e-abaa-144e032b0653/bin/utaipan/data/cb95621ec/141d191656be43fbb9a76124d99eb55d/FLAG51ab40e25 [2019-12-07 15:38:42,102 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2b2e0fcc-cca9-4e3e-abaa-144e032b0653/bin/utaipan/data/cb95621ec/141d191656be43fbb9a76124d99eb55d [2019-12-07 15:38:42,104 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:38:42,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:38:42,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:38:42,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:38:42,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:38:42,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:38:42" (1/1) ... [2019-12-07 15:38:42,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78d2714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:42, skipping insertion in model container [2019-12-07 15:38:42,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:38:42" (1/1) ... [2019-12-07 15:38:42,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:38:42,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:38:42,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:38:42,226 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:38:42,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:38:42,278 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:38:42,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:42 WrapperNode [2019-12-07 15:38:42,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:38:42,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:38:42,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:38:42,279 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:38:42,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:42" (1/1) ... [2019-12-07 15:38:42,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:42" (1/1) ... [2019-12-07 15:38:42,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:38:42,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:38:42,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:38:42,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:38:42,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:42" (1/1) ... [2019-12-07 15:38:42,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:42" (1/1) ... [2019-12-07 15:38:42,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:42" (1/1) ... [2019-12-07 15:38:42,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:42" (1/1) ... [2019-12-07 15:38:42,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:42" (1/1) ... [2019-12-07 15:38:42,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:42" (1/1) ... [2019-12-07 15:38:42,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:42" (1/1) ... [2019-12-07 15:38:42,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:38:42,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:38:42,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:38:42,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:38:42,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2b2e0fcc-cca9-4e3e-abaa-144e032b0653/bin/utaipan/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 [2019-12-07 15:38:42,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:38:42,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:38:42,455 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:38:42,455 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 15:38:42,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:38:42 BoogieIcfgContainer [2019-12-07 15:38:42,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:38:42,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:38:42,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:38:42,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:38:42,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:38:42" (1/3) ... [2019-12-07 15:38:42,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e73ace and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:38:42, skipping insertion in model container [2019-12-07 15:38:42,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:42" (2/3) ... [2019-12-07 15:38:42,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e73ace and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:38:42, skipping insertion in model container [2019-12-07 15:38:42,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:38:42" (3/3) ... [2019-12-07 15:38:42,462 INFO L109 eAbstractionObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c [2019-12-07 15:38:42,469 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:38:42,473 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:38:42,480 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 15:38:42,494 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:38:42,494 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:38:42,494 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:38:42,494 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:38:42,494 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:38:42,494 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:38:42,494 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:38:42,494 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:38:42,503 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-12-07 15:38:42,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 15:38:42,506 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:38:42,507 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 15:38:42,507 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:38:42,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:38:42,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1724589170, now seen corresponding path program 1 times [2019-12-07 15:38:42,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 15:38:42,516 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404769466] [2019-12-07 15:38:42,517 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:38:42,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:38:42,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:38:42,612 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404769466] [2019-12-07 15:38:42,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:38:42,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:38:42,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335971628] [2019-12-07 15:38:42,616 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:38:42,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 15:38:42,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:38:42,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:38:42,626 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2019-12-07 15:38:42,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:38:42,644 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2019-12-07 15:38:42,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:38:42,646 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-07 15:38:42,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:38:42,652 INFO L225 Difference]: With dead ends: 17 [2019-12-07 15:38:42,652 INFO L226 Difference]: Without dead ends: 8 [2019-12-07 15:38:42,654 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:38:42,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-12-07 15:38:42,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-12-07 15:38:42,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-12-07 15:38:42,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-12-07 15:38:42,679 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2019-12-07 15:38:42,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:38:42,679 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-12-07 15:38:42,679 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:38:42,679 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-12-07 15:38:42,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 15:38:42,680 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:38:42,680 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:38:42,680 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:38:42,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:38:42,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1922594244, now seen corresponding path program 1 times [2019-12-07 15:38:42,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 15:38:42,681 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612962584] [2019-12-07 15:38:42,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:38:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:38:42,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:38:42,723 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612962584] [2019-12-07 15:38:42,723 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780553445] [2019-12-07 15:38:42,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2b2e0fcc-cca9-4e3e-abaa-144e032b0653/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:38:42,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:38:42,747 INFO L264 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 15:38:42,750 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:38:42,772 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 15:38:42,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:38:42,782 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:38:42,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:38:42,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-12-07 15:38:42,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [4] total 8 [2019-12-07 15:38:42,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146117732] [2019-12-07 15:38:42,800 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 15:38:42,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 15:38:42,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 15:38:42,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-12-07 15:38:42,801 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 6 states. [2019-12-07 15:38:42,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:38:42,825 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-12-07 15:38:42,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:38:42,825 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2019-12-07 15:38:42,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:38:42,826 INFO L225 Difference]: With dead ends: 8 [2019-12-07 15:38:42,826 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 15:38:42,827 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-12-07 15:38:42,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 15:38:42,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 15:38:42,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 15:38:42,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 15:38:42,827 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-12-07 15:38:42,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:38:42,828 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:38:42,828 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 15:38:42,828 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 15:38:42,828 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 15:38:43,029 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:38:43,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 15:38:43,091 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 15:38:43,092 INFO L242 CegarLoopResult]: At program point L32(lines 25 53) the Hoare annotation is: (or (<= (+ ULTIMATE.start_main_~main__x~0 2) ULTIMATE.start_main_~main__y~0) (<= (+ ULTIMATE.start_main_~main__x~0 50) 0)) [2019-12-07 15:38:43,092 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 15:38:43,092 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2019-12-07 15:38:43,092 INFO L246 CegarLoopResult]: For program point L20(lines 20 53) no Hoare annotation was computed. [2019-12-07 15:38:43,093 INFO L249 CegarLoopResult]: At program point L49(lines 8 55) the Hoare annotation is: true [2019-12-07 15:38:43,093 INFO L246 CegarLoopResult]: For program point L14(lines 14 54) no Hoare annotation was computed. [2019-12-07 15:38:43,093 INFO L246 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2019-12-07 15:38:43,093 INFO L246 CegarLoopResult]: For program point L41(lines 41 50) no Hoare annotation was computed. [2019-12-07 15:38:43,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:38:43 BoogieIcfgContainer [2019-12-07 15:38:43,108 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:38:43,109 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:38:43,109 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:38:43,109 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:38:43,109 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:38:42" (3/4) ... [2019-12-07 15:38:43,112 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 15:38:43,118 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-12-07 15:38:43,118 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 15:38:43,146 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2b2e0fcc-cca9-4e3e-abaa-144e032b0653/bin/utaipan/witness.graphml [2019-12-07 15:38:43,147 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:38:43,148 INFO L168 Benchmark]: Toolchain (without parser) took 1043.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -101.4 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2019-12-07 15:38:43,148 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:38:43,149 INFO L168 Benchmark]: CACSL2BoogieTranslator took 173.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -175.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:38:43,149 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.10 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. [2019-12-07 15:38:43,149 INFO L168 Benchmark]: Boogie Preprocessor took 10.31 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. [2019-12-07 15:38:43,149 INFO L168 Benchmark]: RCFGBuilder took 144.87 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:38:43,150 INFO L168 Benchmark]: TraceAbstraction took 651.83 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: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 11.5 GB. [2019-12-07 15:38:43,150 INFO L168 Benchmark]: Witness Printer took 38.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:38:43,152 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 173.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -175.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.10 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. * Boogie Preprocessor took 10.31 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 144.87 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 651.83 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: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 11.5 GB. * Witness Printer took 38.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: 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: 25]: Loop Invariant Derived loop invariant: main__x + 2 <= main__y || main__x + 50 <= 0 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 6 SDslu, 4 SDs, 0 SdLazy, 16 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 12 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 397 SizeOfPredicates, 6 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...