./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-new/count_by_1_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_64911eea-07c7-4c23-a271-c611c9c20105/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_64911eea-07c7-4c23-a271-c611c9c20105/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_64911eea-07c7-4c23-a271-c611c9c20105/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_64911eea-07c7-4c23-a271-c611c9c20105/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-new/count_by_1_variant.i -s /tmp/vcloud-vcloud-master/worker/run_dir_64911eea-07c7-4c23-a271-c611c9c20105/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_64911eea-07c7-4c23-a271-c611c9c20105/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 2c35b63020039b8235bc0a118d8fbb9fe59d3a09 .............................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:37:27,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:37:27,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:37:27,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:37:27,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:37:27,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:37:27,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:37:27,513 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:37:27,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:37:27,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:37:27,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:37:27,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:37:27,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:37:27,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:37:27,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:37:27,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:37:27,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:37:27,530 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:37:27,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:37:27,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:37:27,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:37:27,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:37:27,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:37:27,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:37:27,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:37:27,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:37:27,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:37:27,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:37:27,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:37:27,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:37:27,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:37:27,551 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:37:27,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:37:27,553 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:37:27,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:37:27,554 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:37:27,554 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:37:27,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:37:27,555 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:37:27,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:37:27,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:37:27,557 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_64911eea-07c7-4c23-a271-c611c9c20105/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:37:27,583 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:37:27,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:37:27,585 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:37:27,585 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:37:27,585 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:37:27,586 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:37:27,586 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:37:27,586 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:37:27,586 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:37:27,587 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:37:27,587 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:37:27,588 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:37:27,588 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:37:27,588 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:37:27,588 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:37:27,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:37:27,589 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:37:27,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:37:27,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:37:27,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:37:27,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:37:27,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:37:27,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:37:27,591 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:37:27,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:37:27,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:37:27,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:37:27,591 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:37:27,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:37:27,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:37:27,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:37:27,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:37:27,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:37:27,593 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:37:27,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:37:27,594 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:37:27,594 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:37:27,594 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_64911eea-07c7-4c23-a271-c611c9c20105/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 -> 2c35b63020039b8235bc0a118d8fbb9fe59d3a09 [2019-11-26 02:37:27,760 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:37:27,774 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:37:27,777 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:37:27,778 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:37:27,779 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:37:27,779 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_64911eea-07c7-4c23-a271-c611c9c20105/bin/utaipan/../../sv-benchmarks/c/loop-new/count_by_1_variant.i [2019-11-26 02:37:27,842 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_64911eea-07c7-4c23-a271-c611c9c20105/bin/utaipan/data/95baed5ae/601e7acfe0f14025b2b1d79cc9e93d9c/FLAG6960a2a9f [2019-11-26 02:37:28,206 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:37:28,207 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_64911eea-07c7-4c23-a271-c611c9c20105/sv-benchmarks/c/loop-new/count_by_1_variant.i [2019-11-26 02:37:28,211 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_64911eea-07c7-4c23-a271-c611c9c20105/bin/utaipan/data/95baed5ae/601e7acfe0f14025b2b1d79cc9e93d9c/FLAG6960a2a9f [2019-11-26 02:37:28,644 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_64911eea-07c7-4c23-a271-c611c9c20105/bin/utaipan/data/95baed5ae/601e7acfe0f14025b2b1d79cc9e93d9c [2019-11-26 02:37:28,646 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:37:28,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:37:28,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:37:28,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:37:28,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:37:28,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:37:28" (1/1) ... [2019-11-26 02:37:28,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ba2f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:28, skipping insertion in model container [2019-11-26 02:37:28,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:37:28" (1/1) ... [2019-11-26 02:37:28,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:37:28,683 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:37:28,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:37:28,818 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:37:28,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:37:28,934 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:37:28,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:28 WrapperNode [2019-11-26 02:37:28,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:37:28,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:37:28,935 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:37:28,935 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:37:28,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:28" (1/1) ... [2019-11-26 02:37:28,947 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:28" (1/1) ... [2019-11-26 02:37:28,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:37:28,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:37:28,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:37:28,961 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:37:28,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:28" (1/1) ... [2019-11-26 02:37:28,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:28" (1/1) ... [2019-11-26 02:37:28,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:28" (1/1) ... [2019-11-26 02:37:28,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:28" (1/1) ... [2019-11-26 02:37:28,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:28" (1/1) ... [2019-11-26 02:37:28,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:28" (1/1) ... [2019-11-26 02:37:28,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:28" (1/1) ... [2019-11-26 02:37:28,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:37:28,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:37:28,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:37:28,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:37:28,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64911eea-07c7-4c23-a271-c611c9c20105/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 [2019-11-26 02:37:29,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:37:29,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:37:29,210 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:37:29,210 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-26 02:37:29,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:37:29 BoogieIcfgContainer [2019-11-26 02:37:29,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:37:29,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:37:29,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:37:29,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:37:29,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:37:28" (1/3) ... [2019-11-26 02:37:29,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@795d5235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:37:29, skipping insertion in model container [2019-11-26 02:37:29,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:28" (2/3) ... [2019-11-26 02:37:29,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@795d5235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:37:29, skipping insertion in model container [2019-11-26 02:37:29,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:37:29" (3/3) ... [2019-11-26 02:37:29,217 INFO L109 eAbstractionObserver]: Analyzing ICFG count_by_1_variant.i [2019-11-26 02:37:29,237 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:37:29,250 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:37:29,260 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:37:29,290 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:37:29,290 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:37:29,291 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:37:29,291 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:37:29,291 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:37:29,291 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:37:29,291 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:37:29,291 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:37:29,306 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-11-26 02:37:29,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-26 02:37:29,311 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:37:29,312 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-26 02:37:29,312 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:37:29,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:37:29,320 INFO L82 PathProgramCache]: Analyzing trace with hash 962347, now seen corresponding path program 1 times [2019-11-26 02:37:29,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:37:29,328 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600144179] [2019-11-26 02:37:29,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:37:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:37:29,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:37:29,466 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600144179] [2019-11-26 02:37:29,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:37:29,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:37:29,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132692196] [2019-11-26 02:37:29,470 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:37:29,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:37:29,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:37:29,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:37:29,482 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 4 states. [2019-11-26 02:37:29,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:37:29,538 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2019-11-26 02:37:29,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:37:29,539 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-26 02:37:29,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:37:29,545 INFO L225 Difference]: With dead ends: 17 [2019-11-26 02:37:29,545 INFO L226 Difference]: Without dead ends: 9 [2019-11-26 02:37:29,547 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:37:29,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-26 02:37:29,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2019-11-26 02:37:29,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-26 02:37:29,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-11-26 02:37:29,575 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2019-11-26 02:37:29,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:37:29,575 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-11-26 02:37:29,575 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:37:29,575 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-11-26 02:37:29,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:37:29,576 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:37:29,576 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-11-26 02:37:29,576 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:37:29,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:37:29,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1390656418, now seen corresponding path program 1 times [2019-11-26 02:37:29,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:37:29,577 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788342701] [2019-11-26 02:37:29,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:37:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:37:29,618 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:37:29,618 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788342701] [2019-11-26 02:37:29,618 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760363924] [2019-11-26 02:37:29,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64911eea-07c7-4c23-a271-c611c9c20105/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 [2019-11-26 02:37:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:37:29,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-26 02:37:29,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:37:29,670 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:37:29,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:37:29,686 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:37:29,710 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:37:29,711 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2021616919] [2019-11-26 02:37:29,730 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2019-11-26 02:37:29,731 INFO L166 IcfgInterpreter]: Building call graph [2019-11-26 02:37:29,736 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-26 02:37:29,741 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-26 02:37:29,742 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-26 02:37:29,860 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-26 02:37:30,096 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2019-11-26 02:37:30,174 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-26 02:37:30,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-11-26 02:37:30,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2019-11-26 02:37:30,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018834544] [2019-11-26 02:37:30,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:37:30,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:37:30,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:37:30,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-11-26 02:37:30,177 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 8 states. [2019-11-26 02:37:30,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:37:30,284 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-11-26 02:37:30,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:37:30,285 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2019-11-26 02:37:30,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:37:30,285 INFO L225 Difference]: With dead ends: 13 [2019-11-26 02:37:30,285 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:37:30,287 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2019-11-26 02:37:30,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:37:30,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:37:30,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:37:30,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:37:30,288 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-11-26 02:37:30,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:37:30,288 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:37:30,288 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:37:30,288 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:37:30,288 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:37:30,489 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:37:30,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:37:30,583 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:37:30,583 INFO L444 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-26 02:37:30,583 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:37:30,583 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-26 02:37:30,583 INFO L440 ceAbstractionStarter]: At program point L12-2(lines 12 14) the Hoare annotation is: (or (<= ULTIMATE.start_main_~i~0 0) (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= ULTIMATE.start_main_~i~0 1000000))) [2019-11-26 02:37:30,584 INFO L444 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-26 02:37:30,584 INFO L440 ceAbstractionStarter]: At program point L4-2(lines 1 16) the Hoare annotation is: (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< ULTIMATE.start_main_~i~0 1000000)) [2019-11-26 02:37:30,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:37:30 BoogieIcfgContainer [2019-11-26 02:37:30,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:37:30,595 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:37:30,595 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:37:30,595 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:37:30,596 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:37:29" (3/4) ... [2019-11-26 02:37:30,599 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:37:30,605 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-26 02:37:30,605 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:37:30,605 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:37:30,646 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_64911eea-07c7-4c23-a271-c611c9c20105/bin/utaipan/witness.graphml [2019-11-26 02:37:30,646 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:37:30,648 INFO L168 Benchmark]: Toolchain (without parser) took 2000.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -102.3 MB). Peak memory consumption was 64.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:37:30,648 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:37:30,649 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -208.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:37:30,649 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:37:30,650 INFO L168 Benchmark]: Boogie Preprocessor took 14.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:37:30,650 INFO L168 Benchmark]: RCFGBuilder took 236.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:37:30,651 INFO L168 Benchmark]: TraceAbstraction took 1382.50 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: 87.6 MB). Peak memory consumption was 87.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:37:30,651 INFO L168 Benchmark]: Witness Printer took 51.29 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. [2019-11-26 02:37:30,654 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 286.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -208.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 236.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1382.50 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: 87.6 MB). Peak memory consumption was 87.6 MB. Max. memory is 11.5 GB. * Witness Printer took 51.29 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: 5]: 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: 12]: Loop Invariant Derived loop invariant: i <= 0 || (1 == cond && i <= 1000000) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 1 == cond && i < 1000000 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 19 SDslu, 6 SDs, 0 SdLazy, 20 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=1, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 9 NumberOfFragments, 18 HoareAnnotationTreeSize, 2 FomulaSimplifications, 27 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 57 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 SizeOfPredicates, 3 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/6 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...