./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ce5aea-5092-4ddf-b056-656e680b2b5f/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ce5aea-5092-4ddf-b056-656e680b2b5f/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ce5aea-5092-4ddf-b056-656e680b2b5f/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ce5aea-5092-4ddf-b056-656e680b2b5f/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ce5aea-5092-4ddf-b056-656e680b2b5f/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ce5aea-5092-4ddf-b056-656e680b2b5f/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6774d8276995139fa82226959a0a91ee830b52b2 ......................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:20:17,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:20:17,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:20:17,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:20:17,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:20:17,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:20:17,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:20:17,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:20:17,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:20:17,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:20:17,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:20:17,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:20:17,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:20:17,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:20:17,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:20:17,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:20:17,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:20:17,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:20:17,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:20:17,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:20:17,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:20:17,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:20:17,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:20:17,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:20:17,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:20:17,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:20:17,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:20:17,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:20:17,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:20:17,136 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:20:17,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:20:17,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:20:17,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:20:17,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:20:17,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:20:17,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:20:17,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:20:17,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:20:17,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:20:17,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:20:17,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:20:17,145 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ce5aea-5092-4ddf-b056-656e680b2b5f/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:20:17,182 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:20:17,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:20:17,184 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:20:17,184 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:20:17,184 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:20:17,185 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:20:17,185 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:20:17,185 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:20:17,185 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:20:17,186 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:20:17,186 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:20:17,186 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:20:17,186 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:20:17,187 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:20:17,187 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:20:17,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:20:17,188 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:20:17,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:20:17,188 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:20:17,189 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:20:17,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:20:17,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:20:17,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:20:17,190 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:20:17,190 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:20:17,190 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:20:17,190 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:20:17,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:20:17,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:20:17,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:20:17,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:20:17,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:20:17,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:20:17,192 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:20:17,192 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:20:17,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:20:17,193 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:20:17,193 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:20:17,193 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:20:17,194 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_worker_vcloud-master_on_vcloud-master/run_dir_09ce5aea-5092-4ddf-b056-656e680b2b5f/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ce5aea-5092-4ddf-b056-656e680b2b5f/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6774d8276995139fa82226959a0a91ee830b52b2 [2021-10-11 02:20:17,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:20:17,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:20:17,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:20:17,519 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:20:17,519 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:20:17,520 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ce5aea-5092-4ddf-b056-656e680b2b5f/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2021-10-11 02:20:17,596 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ce5aea-5092-4ddf-b056-656e680b2b5f/bin/utaipan-WLngWcDbfI/data/a4bfde37b/892d9166a66d4f429f2252457d64b1f6/FLAGe035fa97c [2021-10-11 02:20:18,114 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:20:18,117 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ce5aea-5092-4ddf-b056-656e680b2b5f/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2021-10-11 02:20:18,125 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ce5aea-5092-4ddf-b056-656e680b2b5f/bin/utaipan-WLngWcDbfI/data/a4bfde37b/892d9166a66d4f429f2252457d64b1f6/FLAGe035fa97c [2021-10-11 02:20:18,469 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ce5aea-5092-4ddf-b056-656e680b2b5f/bin/utaipan-WLngWcDbfI/data/a4bfde37b/892d9166a66d4f429f2252457d64b1f6 [2021-10-11 02:20:18,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:20:18,474 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:20:18,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:18,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:20:18,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:20:18,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:18" (1/1) ... [2021-10-11 02:20:18,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fb87e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:18, skipping insertion in model container [2021-10-11 02:20:18,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:18" (1/1) ... [2021-10-11 02:20:18,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:20:18,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:20:18,705 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ce5aea-5092-4ddf-b056-656e680b2b5f/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c[2239,2252] [2021-10-11 02:20:18,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:18,721 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:20:18,742 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ce5aea-5092-4ddf-b056-656e680b2b5f/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c[2239,2252] [2021-10-11 02:20:18,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:18,759 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:20:18,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:18 WrapperNode [2021-10-11 02:20:18,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:18,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:20:18,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:20:18,761 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:20:18,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:18" (1/1) ... [2021-10-11 02:20:18,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:18" (1/1) ... [2021-10-11 02:20:18,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:20:18,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:20:18,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:20:18,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:20:18,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:18" (1/1) ... [2021-10-11 02:20:18,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:18" (1/1) ... [2021-10-11 02:20:18,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:18" (1/1) ... [2021-10-11 02:20:18,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:18" (1/1) ... [2021-10-11 02:20:18,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:18" (1/1) ... [2021-10-11 02:20:18,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:18" (1/1) ... [2021-10-11 02:20:18,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:18" (1/1) ... [2021-10-11 02:20:18,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:20:18,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:20:18,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:20:18,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:20:18,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:18" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ce5aea-5092-4ddf-b056-656e680b2b5f/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:20:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:20:18,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:20:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:20:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:20:19,174 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:20:19,174 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-11 02:20:19,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:19 BoogieIcfgContainer [2021-10-11 02:20:19,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:20:19,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:20:19,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:20:19,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:20:19,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:20:18" (1/3) ... [2021-10-11 02:20:19,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b30b390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:20:19, skipping insertion in model container [2021-10-11 02:20:19,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:18" (2/3) ... [2021-10-11 02:20:19,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b30b390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:20:19, skipping insertion in model container [2021-10-11 02:20:19,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:19" (3/3) ... [2021-10-11 02:20:19,185 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c.v+lhb-reducer.c [2021-10-11 02:20:19,198 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:20:19,201 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:20:19,212 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:20:19,235 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:20:19,235 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:20:19,235 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:20:19,236 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:20:19,236 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:20:19,236 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:20:19,236 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:20:19,236 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:20:19,249 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2021-10-11 02:20:19,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:20:19,254 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:20:19,254 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:20:19,255 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:20:19,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:20:19,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1546774585, now seen corresponding path program 1 times [2021-10-11 02:20:19,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:20:19,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984051485] [2021-10-11 02:20:19,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:20:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:20:19,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:20:19,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984051485] [2021-10-11 02:20:19,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:20:19,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:20:19,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830565864] [2021-10-11 02:20:19,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:20:19,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:20:19,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:20:19,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:20:19,787 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 4 states. [2021-10-11 02:20:20,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:20:20,405 INFO L93 Difference]: Finished difference Result 43 states and 59 transitions. [2021-10-11 02:20:20,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:20:20,406 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2021-10-11 02:20:20,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:20:20,412 INFO L225 Difference]: With dead ends: 43 [2021-10-11 02:20:20,412 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:20:20,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:20:20,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:20:20,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:20:20,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:20:20,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:20:20,446 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-10-11 02:20:20,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:20:20,447 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:20:20,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:20:20,447 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:20:20,447 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:20:20,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:20:20,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:20:20,483 INFO L262 CegarLoopResult]: For program point L97(lines 97 106) no Hoare annotation was computed. [2021-10-11 02:20:20,483 INFO L258 CegarLoopResult]: At program point L122(lines 25 145) the Hoare annotation is: (<= ULTIMATE.start_main_~main__x~0 (let ((.cse2 (div ULTIMATE.start_main_~main__x~0 4294967296))) (let ((.cse0 (* .cse2 (- 4294967296)))) (let ((.cse1 (div (+ ULTIMATE.start_main_~main__x~0 .cse0) 3))) (+ (* 4294967296 (div (+ ULTIMATE.start_main_~main__x~0 .cse0 (* .cse1 (- 3))) 4294967296)) (* 4294967296 .cse2) (* 3 .cse1)))))) [2021-10-11 02:20:20,484 INFO L258 CegarLoopResult]: At program point L56(lines 26 114) the Hoare annotation is: (<= ULTIMATE.start_main_~main__x~0 (let ((.cse2 (div ULTIMATE.start_main_~main__x~0 4294967296))) (let ((.cse0 (* .cse2 (- 4294967296)))) (let ((.cse1 (div (+ ULTIMATE.start_main_~main__x~0 .cse0) 3))) (+ (* 4294967296 (div (+ ULTIMATE.start_main_~main__x~0 .cse0 (* .cse1 (- 3))) 4294967296)) (* 4294967296 .cse2) (* 3 .cse1)))))) [2021-10-11 02:20:20,484 INFO L262 CegarLoopResult]: For program point L23(lines 23 150) no Hoare annotation was computed. [2021-10-11 02:20:20,484 INFO L262 CegarLoopResult]: For program point L48(lines 48 85) no Hoare annotation was computed. [2021-10-11 02:20:20,485 INFO L258 CegarLoopResult]: At program point L44(lines 26 114) the Hoare annotation is: (<= ULTIMATE.start_main_~main__x~0 (let ((.cse2 (div ULTIMATE.start_main_~main__x~0 4294967296))) (let ((.cse0 (* .cse2 (- 4294967296)))) (let ((.cse1 (div (+ ULTIMATE.start_main_~main__x~0 .cse0) 3))) (+ (* 4294967296 (div (+ ULTIMATE.start_main_~main__x~0 .cse0 (* .cse1 (- 3))) 4294967296)) (* 4294967296 .cse2) (* 3 .cse1)))))) [2021-10-11 02:20:20,485 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:20:20,485 INFO L262 CegarLoopResult]: For program point L90(lines 90 112) no Hoare annotation was computed. [2021-10-11 02:20:20,485 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 99) no Hoare annotation was computed. [2021-10-11 02:20:20,485 INFO L262 CegarLoopResult]: For program point L37(lines 37 113) no Hoare annotation was computed. [2021-10-11 02:20:20,485 INFO L262 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2021-10-11 02:20:20,486 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:20:20,486 INFO L262 CegarLoopResult]: For program point L128(lines 128 143) no Hoare annotation was computed. [2021-10-11 02:20:20,486 INFO L262 CegarLoopResult]: For program point L62(lines 62 84) no Hoare annotation was computed. [2021-10-11 02:20:20,487 INFO L262 CegarLoopResult]: For program point L25(lines 25 145) no Hoare annotation was computed. [2021-10-11 02:20:20,487 INFO L265 CegarLoopResult]: At program point L149(lines 16 151) the Hoare annotation is: true [2021-10-11 02:20:20,488 INFO L265 CegarLoopResult]: At program point L83(lines 17 151) the Hoare annotation is: true [2021-10-11 02:20:20,488 INFO L262 CegarLoopResult]: For program point L117(lines 117 144) no Hoare annotation was computed. [2021-10-11 02:20:20,488 INFO L265 CegarLoopResult]: At program point L142(lines 25 145) the Hoare annotation is: true [2021-10-11 02:20:20,488 INFO L262 CegarLoopResult]: For program point L39(lines 39 86) no Hoare annotation was computed. [2021-10-11 02:20:20,489 INFO L265 CegarLoopResult]: At program point L134(lines 25 145) the Hoare annotation is: true [2021-10-11 02:20:20,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:20:20 BoogieIcfgContainer [2021-10-11 02:20:20,529 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:20:20,530 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:20:20,532 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:20:20,533 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:20:20,533 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:19" (3/4) ... [2021-10-11 02:20:20,536 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:20:20,549 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 02:20:20,550 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:20:20,550 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:20:20,551 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:20:20,637 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ce5aea-5092-4ddf-b056-656e680b2b5f/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:20:20,638 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:20:20,640 INFO L168 Benchmark]: Toolchain (without parser) took 2164.64 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 53.1 MB in the beginning and 77.9 MB in the end (delta: -24.9 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:20,641 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory was 70.2 MB in the beginning and 70.2 MB in the end (delta: 60.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:20:20,642 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.38 ms. Allocated memory is still 92.3 MB. Free memory was 52.9 MB in the beginning and 64.4 MB in the end (delta: -11.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:20,643 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.24 ms. Allocated memory is still 92.3 MB. Free memory was 64.4 MB in the beginning and 62.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:20,643 INFO L168 Benchmark]: Boogie Preprocessor took 33.25 ms. Allocated memory is still 92.3 MB. Free memory was 62.7 MB in the beginning and 61.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:20,644 INFO L168 Benchmark]: RCFGBuilder took 344.51 ms. Allocated memory is still 92.3 MB. Free memory was 61.5 MB in the beginning and 43.7 MB in the end (delta: 17.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:20,647 INFO L168 Benchmark]: TraceAbstraction took 1351.30 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 43.3 MB in the beginning and 81.3 MB in the end (delta: -38.0 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:20,647 INFO L168 Benchmark]: Witness Printer took 107.93 ms. Allocated memory is still 134.2 MB. Free memory was 81.3 MB in the beginning and 77.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:20,652 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory was 70.2 MB in the beginning and 70.2 MB in the end (delta: 60.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 284.38 ms. Allocated memory is still 92.3 MB. Free memory was 52.9 MB in the beginning and 64.4 MB in the end (delta: -11.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.24 ms. Allocated memory is still 92.3 MB. Free memory was 64.4 MB in the beginning and 62.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.25 ms. Allocated memory is still 92.3 MB. Free memory was 62.7 MB in the beginning and 61.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 344.51 ms. Allocated memory is still 92.3 MB. Free memory was 61.5 MB in the beginning and 43.7 MB in the end (delta: 17.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1351.30 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 43.3 MB in the beginning and 81.3 MB in the end (delta: -38.0 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. * Witness Printer took 107.93 ms. Allocated memory is still 134.2 MB. Free memory was 81.3 MB in the beginning and 77.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 99]: call to reach_error is unreachable For all program executions holds that call to reach_error is 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 <= 4294967296 * ((main__x + main__x / 4294967296 * -4294967296 + (main__x + main__x / 4294967296 * -4294967296) / 3 * -3) / 4294967296) + 4294967296 * (main__x / 4294967296) + 3 * ((main__x + main__x / 4294967296 * -4294967296) / 3) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * ((main__x + main__x / 4294967296 * -4294967296 + (main__x + main__x / 4294967296 * -4294967296) / 3 * -3) / 4294967296) + 4294967296 * (main__x / 4294967296) + 3 * ((main__x + main__x / 4294967296 * -4294967296) / 3) - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * ((main__x + main__x / 4294967296 * -4294967296 + (main__x + main__x / 4294967296 * -4294967296) / 3 * -3) / 4294967296) + 4294967296 * (main__x / 4294967296) + 3 * ((main__x + main__x / 4294967296 * -4294967296) / 3) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 10 SDslu, 25 SDs, 0 SdLazy, 18 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 16 NumberOfFragments, 127 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 1548 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...