./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_62522b85-68c2-45b2-b371-05e7021bd552/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_62522b85-68c2-45b2-b371-05e7021bd552/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_62522b85-68c2-45b2-b371-05e7021bd552/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_62522b85-68c2-45b2-b371-05e7021bd552/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c -s /tmp/vcloud-vcloud-master/worker/run_dir_62522b85-68c2-45b2-b371-05e7021bd552/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_62522b85-68c2-45b2-b371-05e7021bd552/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 64bit --witnessprinter.graph.data.programhash 072df04afae5ae28487e0b8208c52f13961dea34 .......................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:39:32,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:39:32,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:39:32,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:39:32,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:39:32,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:39:32,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:39:32,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:39:32,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:39:32,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:39:32,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:39:32,233 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:39:32,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:39:32,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:39:32,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:39:32,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:39:32,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:39:32,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:39:32,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:39:32,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:39:32,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:39:32,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:39:32,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:39:32,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:39:32,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:39:32,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:39:32,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:39:32,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:39:32,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:39:32,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:39:32,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:39:32,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:39:32,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:39:32,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:39:32,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:39:32,278 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:39:32,279 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:39:32,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:39:32,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:39:32,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:39:32,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:39:32,284 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_62522b85-68c2-45b2-b371-05e7021bd552/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-11-30 01:39:32,314 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:39:32,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:39:32,316 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:39:32,316 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:39:32,317 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:39:32,317 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:39:32,317 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 01:39:32,318 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:39:32,318 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:39:32,318 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 01:39:32,319 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 01:39:32,319 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:39:32,319 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 01:39:32,320 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 01:39:32,320 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 01:39:32,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:39:32,321 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:39:32,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:39:32,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:39:32,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:39:32,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:39:32,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:39:32,323 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 01:39:32,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:39:32,324 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:39:32,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:39:32,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:39:32,325 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:39:32,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:39:32,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:39:32,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:39:32,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:39:32,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:39:32,329 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 01:39:32,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:39:32,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:39:32,330 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:39:32,331 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:39:32,331 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_62522b85-68c2-45b2-b371-05e7021bd552/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_62522b85-68c2-45b2-b371-05e7021bd552/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 072df04afae5ae28487e0b8208c52f13961dea34 [2020-11-30 01:39:32,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:39:32,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:39:32,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:39:32,756 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:39:32,759 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:39:32,760 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_62522b85-68c2-45b2-b371-05e7021bd552/bin/utaipan/../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2020-11-30 01:39:32,841 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_62522b85-68c2-45b2-b371-05e7021bd552/bin/utaipan/data/4502d918a/5937911771274e5b8d8915c9133c4760/FLAG9fbd683c1 [2020-11-30 01:39:33,360 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:39:33,361 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_62522b85-68c2-45b2-b371-05e7021bd552/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2020-11-30 01:39:33,374 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_62522b85-68c2-45b2-b371-05e7021bd552/bin/utaipan/data/4502d918a/5937911771274e5b8d8915c9133c4760/FLAG9fbd683c1 [2020-11-30 01:39:33,749 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_62522b85-68c2-45b2-b371-05e7021bd552/bin/utaipan/data/4502d918a/5937911771274e5b8d8915c9133c4760 [2020-11-30 01:39:33,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:39:33,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:39:33,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:39:33,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:39:33,768 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:39:33,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:39:33" (1/1) ... [2020-11-30 01:39:33,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cb5acac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:33, skipping insertion in model container [2020-11-30 01:39:33,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:39:33" (1/1) ... [2020-11-30 01:39:33,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:39:33,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:39:34,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:39:34,060 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:39:34,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:39:34,133 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:39:34,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:34 WrapperNode [2020-11-30 01:39:34,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:39:34,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:39:34,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:39:34,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:39:34,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:34" (1/1) ... [2020-11-30 01:39:34,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:34" (1/1) ... [2020-11-30 01:39:34,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:39:34,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:39:34,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:39:34,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:39:34,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:34" (1/1) ... [2020-11-30 01:39:34,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:34" (1/1) ... [2020-11-30 01:39:34,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:34" (1/1) ... [2020-11-30 01:39:34,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:34" (1/1) ... [2020-11-30 01:39:34,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:34" (1/1) ... [2020-11-30 01:39:34,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:34" (1/1) ... [2020-11-30 01:39:34,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:34" (1/1) ... [2020-11-30 01:39:34,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:39:34,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:39:34,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:39:34,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:39:34,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_62522b85-68c2-45b2-b371-05e7021bd552/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 [2020-11-30 01:39:34,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:39:34,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:39:34,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:39:34,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 01:39:34,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:39:34,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:39:34,819 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:39:34,819 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 01:39:34,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:39:34 BoogieIcfgContainer [2020-11-30 01:39:34,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:39:34,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:39:34,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:39:34,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:39:34,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:39:33" (1/3) ... [2020-11-30 01:39:34,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24348d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:39:34, skipping insertion in model container [2020-11-30 01:39:34,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:34" (2/3) ... [2020-11-30 01:39:34,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24348d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:39:34, skipping insertion in model container [2020-11-30 01:39:34,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:39:34" (3/3) ... [2020-11-30 01:39:34,832 INFO L111 eAbstractionObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2020-11-30 01:39:34,846 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:39:34,851 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-30 01:39:34,865 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-30 01:39:34,910 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:39:34,910 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:39:34,910 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:39:34,911 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:39:34,911 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:39:34,911 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:39:34,911 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:39:34,911 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:39:34,930 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-11-30 01:39:34,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 01:39:34,938 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:39:34,939 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 01:39:34,941 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:39:34,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:39:34,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1645617, now seen corresponding path program 1 times [2020-11-30 01:39:34,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:39:34,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881062773] [2020-11-30 01:39:34,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:39:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:39:35,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:39:35,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881062773] [2020-11-30 01:39:35,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:39:35,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:39:35,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570226539] [2020-11-30 01:39:35,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:39:35,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:39:35,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:39:35,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:39:35,267 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2020-11-30 01:39:35,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:39:35,365 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2020-11-30 01:39:35,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:39:35,368 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-11-30 01:39:35,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:39:35,377 INFO L225 Difference]: With dead ends: 11 [2020-11-30 01:39:35,377 INFO L226 Difference]: Without dead ends: 6 [2020-11-30 01:39:35,389 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 [2020-11-30 01:39:35,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2020-11-30 01:39:35,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-11-30 01:39:35,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-30 01:39:35,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2020-11-30 01:39:35,428 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2020-11-30 01:39:35,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:39:35,429 INFO L481 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2020-11-30 01:39:35,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:39:35,429 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2020-11-30 01:39:35,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 01:39:35,430 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:39:35,430 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 01:39:35,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:39:35,431 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:39:35,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:39:35,435 INFO L82 PathProgramCache]: Analyzing trace with hash 51014173, now seen corresponding path program 1 times [2020-11-30 01:39:35,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:39:35,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414612590] [2020-11-30 01:39:35,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:39:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:39:35,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:39:35,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414612590] [2020-11-30 01:39:35,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:39:35,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:39:35,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72472680] [2020-11-30 01:39:35,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:39:35,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:39:35,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:39:35,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:39:35,530 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 4 states. [2020-11-30 01:39:35,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:39:35,547 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2020-11-30 01:39:35,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:39:35,548 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-11-30 01:39:35,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:39:35,548 INFO L225 Difference]: With dead ends: 6 [2020-11-30 01:39:35,548 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:39:35,549 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:39:35,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:39:35,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:39:35,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:39:35,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:39:35,551 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-11-30 01:39:35,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:39:35,551 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:39:35,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:39:35,551 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:39:35,552 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:39:35,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:39:35,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:39:35,572 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2020-11-30 01:39:35,572 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:39:35,572 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2020-11-30 01:39:35,572 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:39:35,572 INFO L274 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-11-30 01:39:35,573 INFO L274 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-11-30 01:39:35,573 INFO L274 CegarLoopResult]: For program point L13-1(lines 13 16) no Hoare annotation was computed. [2020-11-30 01:39:35,573 INFO L270 CegarLoopResult]: At program point L13-3(lines 13 16) the Hoare annotation is: (<= (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| 8)) 2147483647) [2020-11-30 01:39:35,574 INFO L270 CegarLoopResult]: At program point L13-4(lines 13 16) the Hoare annotation is: (<= (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| 8)) 2147483647) [2020-11-30 01:39:35,584 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:39:35,590 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:39:35,591 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:39:35,592 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:39:35,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:39:35 BoogieIcfgContainer [2020-11-30 01:39:35,594 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:39:35,595 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:39:35,595 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:39:35,595 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:39:35,596 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:39:34" (3/4) ... [2020-11-30 01:39:35,600 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:39:35,610 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-30 01:39:35,610 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-30 01:39:35,611 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-30 01:39:35,676 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_62522b85-68c2-45b2-b371-05e7021bd552/bin/utaipan/witness.graphml [2020-11-30 01:39:35,677 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:39:35,681 INFO L168 Benchmark]: Toolchain (without parser) took 1920.86 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 78.6 MB in the beginning and 94.1 MB in the end (delta: -15.5 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:39:35,681 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 107.0 MB. Free memory is still 65.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:39:35,683 INFO L168 Benchmark]: CACSL2BoogieTranslator took 372.23 ms. Allocated memory is still 107.0 MB. Free memory was 78.4 MB in the beginning and 84.0 MB in the end (delta: -5.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:39:35,683 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.41 ms. Allocated memory is still 107.0 MB. Free memory was 84.0 MB in the beginning and 82.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:39:35,685 INFO L168 Benchmark]: Boogie Preprocessor took 24.69 ms. Allocated memory is still 107.0 MB. Free memory was 82.8 MB in the beginning and 81.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:39:35,686 INFO L168 Benchmark]: RCFGBuilder took 622.25 ms. Allocated memory is still 107.0 MB. Free memory was 81.6 MB in the beginning and 69.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:39:35,687 INFO L168 Benchmark]: TraceAbstraction took 770.93 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 69.4 MB in the beginning and 96.2 MB in the end (delta: -26.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:39:35,688 INFO L168 Benchmark]: Witness Printer took 82.63 ms. Allocated memory is still 130.0 MB. Free memory was 96.2 MB in the beginning and 94.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:39:35,698 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 107.0 MB. Free memory is still 65.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 372.23 ms. Allocated memory is still 107.0 MB. Free memory was 78.4 MB in the beginning and 84.0 MB in the end (delta: -5.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.41 ms. Allocated memory is still 107.0 MB. Free memory was 84.0 MB in the beginning and 82.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.69 ms. Allocated memory is still 107.0 MB. Free memory was 82.8 MB in the beginning and 81.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 622.25 ms. Allocated memory is still 107.0 MB. Free memory was 81.6 MB in the beginning and 69.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 770.93 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 69.4 MB in the beginning and 96.2 MB in the end (delta: -26.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 82.63 ms. Allocated memory is still 130.0 MB. Free memory was 96.2 MB in the beginning and 94.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: 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: 13]: Loop Invariant [2020-11-30 01:39:35,710 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:39:35,711 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: unknown-#memory_int-unknown[a][a + 8] <= 2147483647 - InvariantResult [Line: 13]: Loop Invariant [2020-11-30 01:39:35,713 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:39:35,713 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: unknown-#memory_int-unknown[a][a + 8] <= 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: 4 SDtfs, 6 SDslu, 2 SDs, 0 SdLazy, 20 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 18 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 127 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...