./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark02_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ec00f385-9295-4a49-9316-124e605d7315/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ec00f385-9295-4a49-9316-124e605d7315/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ec00f385-9295-4a49-9316-124e605d7315/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ec00f385-9295-4a49-9316-124e605d7315/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark02_linear.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ec00f385-9295-4a49-9316-124e605d7315/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ec00f385-9295-4a49-9316-124e605d7315/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 843a3e85c76459ea482367d208e349e6decd95bf ........................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:40:09,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:40:09,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:40:09,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:40:09,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:40:09,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:40:09,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:40:09,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:40:09,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:40:09,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:40:09,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:40:09,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:40:09,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:40:09,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:40:09,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:40:09,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:40:09,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:40:09,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:40:09,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:40:09,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:40:09,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:40:09,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:40:09,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:40:09,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:40:09,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:40:09,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:40:09,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:40:09,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:40:09,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:40:09,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:40:09,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:40:09,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:40:09,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:40:09,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:40:09,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:40:09,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:40:09,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:40:09,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:40:09,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:40:09,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:40:09,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:40:09,914 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ec00f385-9295-4a49-9316-124e605d7315/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2020-11-28 07:40:09,959 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:40:09,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:40:09,961 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:40:09,961 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:40:09,961 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:40:09,962 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:40:09,962 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:40:09,962 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:40:09,962 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:40:09,962 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:40:09,963 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:40:09,963 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:40:09,964 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:40:09,964 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:40:09,964 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:40:09,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:40:09,965 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:40:09,965 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 07:40:09,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:40:09,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:40:09,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:40:09,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:40:09,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:40:09,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:40:09,966 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 07:40:09,967 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:40:09,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:40:09,967 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:40:09,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:40:09,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:40:09,969 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:40:09,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:40:09,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:40:09,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:40:09,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:40:09,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:40:09,970 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:40:09,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:40:09,970 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:40:09,971 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:40:09,971 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:40:09,971 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_ec00f385-9295-4a49-9316-124e605d7315/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ec00f385-9295-4a49-9316-124e605d7315/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 843a3e85c76459ea482367d208e349e6decd95bf [2020-11-28 07:40:10,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:40:10,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:40:10,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:40:10,300 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:40:10,301 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:40:10,302 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ec00f385-9295-4a49-9316-124e605d7315/bin/utaipan/../../sv-benchmarks/c/loop-zilu/benchmark02_linear.i [2020-11-28 07:40:10,403 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec00f385-9295-4a49-9316-124e605d7315/bin/utaipan/data/bd7e7483e/543a50e6b53043b88c9fcc3a3fd34475/FLAG5e72e1d68 [2020-11-28 07:40:10,907 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:40:10,907 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ec00f385-9295-4a49-9316-124e605d7315/sv-benchmarks/c/loop-zilu/benchmark02_linear.i [2020-11-28 07:40:10,918 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec00f385-9295-4a49-9316-124e605d7315/bin/utaipan/data/bd7e7483e/543a50e6b53043b88c9fcc3a3fd34475/FLAG5e72e1d68 [2020-11-28 07:40:11,238 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ec00f385-9295-4a49-9316-124e605d7315/bin/utaipan/data/bd7e7483e/543a50e6b53043b88c9fcc3a3fd34475 [2020-11-28 07:40:11,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:40:11,241 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:40:11,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:40:11,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:40:11,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:40:11,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:40:11" (1/1) ... [2020-11-28 07:40:11,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26d1dbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:11, skipping insertion in model container [2020-11-28 07:40:11,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:40:11" (1/1) ... [2020-11-28 07:40:11,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:40:11,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:40:11,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:40:11,423 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:40:11,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:40:11,453 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:40:11,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:11 WrapperNode [2020-11-28 07:40:11,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:40:11,455 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:40:11,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:40:11,455 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:40:11,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:11" (1/1) ... [2020-11-28 07:40:11,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:11" (1/1) ... [2020-11-28 07:40:11,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:40:11,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:40:11,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:40:11,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:40:11,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:11" (1/1) ... [2020-11-28 07:40:11,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:11" (1/1) ... [2020-11-28 07:40:11,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:11" (1/1) ... [2020-11-28 07:40:11,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:11" (1/1) ... [2020-11-28 07:40:11,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:11" (1/1) ... [2020-11-28 07:40:11,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:11" (1/1) ... [2020-11-28 07:40:11,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:11" (1/1) ... [2020-11-28 07:40:11,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:40:11,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:40:11,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:40:11,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:40:11,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec00f385-9295-4a49-9316-124e605d7315/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 [2020-11-28 07:40:11,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:40:11,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:40:11,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:40:11,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:40:11,964 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:40:11,964 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 07:40:11,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:40:11 BoogieIcfgContainer [2020-11-28 07:40:11,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:40:11,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:40:11,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:40:11,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:40:11,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:40:11" (1/3) ... [2020-11-28 07:40:11,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5230ef5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:40:11, skipping insertion in model container [2020-11-28 07:40:11,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:11" (2/3) ... [2020-11-28 07:40:11,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5230ef5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:40:11, skipping insertion in model container [2020-11-28 07:40:11,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:40:11" (3/3) ... [2020-11-28 07:40:11,974 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark02_linear.i [2020-11-28 07:40:11,988 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:40:11,993 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 07:40:12,005 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-28 07:40:12,029 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:40:12,029 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:40:12,029 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:40:12,029 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:40:12,029 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:40:12,030 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:40:12,030 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:40:12,030 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:40:12,042 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-11-28 07:40:12,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 07:40:12,047 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:40:12,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 07:40:12,048 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 07:40:12,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:40:12,054 INFO L82 PathProgramCache]: Analyzing trace with hash 2152192, now seen corresponding path program 1 times [2020-11-28 07:40:12,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:40:12,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280201401] [2020-11-28 07:40:12,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:40:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:40:12,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:40:12,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280201401] [2020-11-28 07:40:12,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:40:12,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:40:12,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924517918] [2020-11-28 07:40:12,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:40:12,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:40:12,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:40:12,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:40:12,356 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2020-11-28 07:40:12,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:40:12,406 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2020-11-28 07:40:12,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:40:12,408 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-11-28 07:40:12,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:40:12,415 INFO L225 Difference]: With dead ends: 9 [2020-11-28 07:40:12,416 INFO L226 Difference]: Without dead ends: 6 [2020-11-28 07:40:12,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:40:12,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2020-11-28 07:40:12,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-11-28 07:40:12,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-28 07:40:12,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2020-11-28 07:40:12,456 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2020-11-28 07:40:12,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:40:12,457 INFO L481 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2020-11-28 07:40:12,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:40:12,457 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2020-11-28 07:40:12,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 07:40:12,458 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:40:12,458 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 07:40:12,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:40:12,458 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 07:40:12,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:40:12,459 INFO L82 PathProgramCache]: Analyzing trace with hash 66718002, now seen corresponding path program 1 times [2020-11-28 07:40:12,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:40:12,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238242737] [2020-11-28 07:40:12,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:40:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:40:12,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:40:12,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238242737] [2020-11-28 07:40:12,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:40:12,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:40:12,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544233293] [2020-11-28 07:40:12,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 07:40:12,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:40:12,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 07:40:12,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:40:12,554 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 5 states. [2020-11-28 07:40:12,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:40:12,635 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2020-11-28 07:40:12,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 07:40:12,636 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2020-11-28 07:40:12,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:40:12,636 INFO L225 Difference]: With dead ends: 9 [2020-11-28 07:40:12,636 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:40:12,637 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 07:40:12,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:40:12,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:40:12,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:40:12,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:40:12,638 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-11-28 07:40:12,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:40:12,638 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:40:12,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 07:40:12,638 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:40:12,639 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:40:12,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 07:40:12,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:40:12,687 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2020-11-28 07:40:12,687 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:40:12,688 INFO L270 CegarLoopResult]: At program point L29(lines 19 30) the Hoare annotation is: (<= ULTIMATE.start_main_~n~0 2147483647) [2020-11-28 07:40:12,688 INFO L270 CegarLoopResult]: At program point L25-2(lines 25 27) the Hoare annotation is: (and (<= ULTIMATE.start_main_~n~0 2147483647) (<= 1 ULTIMATE.start_main_~i~0)) [2020-11-28 07:40:12,688 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2020-11-28 07:40:12,688 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:40:12,688 INFO L274 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-11-28 07:40:12,689 INFO L274 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-11-28 07:40:12,689 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-11-28 07:40:12,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:40:12 BoogieIcfgContainer [2020-11-28 07:40:12,707 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:40:12,707 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:40:12,709 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:40:12,709 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:40:12,711 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:40:11" (3/4) ... [2020-11-28 07:40:12,714 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:40:12,723 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-28 07:40:12,724 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 07:40:12,729 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:40:12,730 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:40:12,780 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ec00f385-9295-4a49-9316-124e605d7315/bin/utaipan/witness.graphml [2020-11-28 07:40:12,786 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:40:12,790 INFO L168 Benchmark]: Toolchain (without parser) took 1547.83 ms. Allocated memory is still 94.4 MB. Free memory was 70.4 MB in the beginning and 45.5 MB in the end (delta: 24.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:12,794 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 77.6 MB. Free memory is still 47.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:40:12,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.56 ms. Allocated memory is still 94.4 MB. Free memory was 70.2 MB in the beginning and 61.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:12,795 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.13 ms. Allocated memory is still 94.4 MB. Free memory was 61.0 MB in the beginning and 59.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:12,796 INFO L168 Benchmark]: Boogie Preprocessor took 20.43 ms. Allocated memory is still 94.4 MB. Free memory was 59.5 MB in the beginning and 58.6 MB in the end (delta: 947.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:12,797 INFO L168 Benchmark]: RCFGBuilder took 457.47 ms. Allocated memory is still 94.4 MB. Free memory was 58.6 MB in the beginning and 42.7 MB in the end (delta: 15.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:12,797 INFO L168 Benchmark]: TraceAbstraction took 738.97 ms. Allocated memory is still 94.4 MB. Free memory was 42.2 MB in the beginning and 48.0 MB in the end (delta: -5.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:40:12,798 INFO L168 Benchmark]: Witness Printer took 80.67 ms. Allocated memory is still 94.4 MB. Free memory was 48.0 MB in the beginning and 45.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:12,803 INFO L339 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 77.6 MB. Free memory is still 47.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 211.56 ms. Allocated memory is still 94.4 MB. Free memory was 70.2 MB in the beginning and 61.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.13 ms. Allocated memory is still 94.4 MB. Free memory was 61.0 MB in the beginning and 59.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.43 ms. Allocated memory is still 94.4 MB. Free memory was 59.5 MB in the beginning and 58.6 MB in the end (delta: 947.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 457.47 ms. Allocated memory is still 94.4 MB. Free memory was 58.6 MB in the beginning and 42.7 MB in the end (delta: 15.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 738.97 ms. Allocated memory is still 94.4 MB. Free memory was 42.2 MB in the beginning and 48.0 MB in the end (delta: -5.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 80.67 ms. Allocated memory is still 94.4 MB. Free memory was 48.0 MB in the beginning and 45.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: n <= 2147483647 && 1 <= i - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: n <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 15 SDslu, 3 SDs, 0 SdLazy, 19 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s 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, 3 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 75 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...