./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8a15bd81-8abf-4615-9a1a-7a12e0f06440/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8a15bd81-8abf-4615-9a1a-7a12e0f06440/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8a15bd81-8abf-4615-9a1a-7a12e0f06440/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8a15bd81-8abf-4615-9a1a-7a12e0f06440/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8a15bd81-8abf-4615-9a1a-7a12e0f06440/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8a15bd81-8abf-4615-9a1a-7a12e0f06440/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f7e1c1540b70904598fe5e82d3f5b8e6f2e3e9f6 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:11:42,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:11:42,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:11:42,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:11:42,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:11:42,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:11:42,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:11:42,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:11:42,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:11:42,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:11:42,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:11:42,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:11:42,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:11:42,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:11:42,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:11:42,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:11:42,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:11:42,239 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:11:42,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:11:42,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:11:42,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:11:42,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:11:42,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:11:42,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:11:42,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:11:42,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:11:42,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:11:42,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:11:42,279 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:11:42,280 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:11:42,281 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:11:42,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:11:42,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:11:42,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:11:42,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:11:42,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:11:42,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:11:42,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:11:42,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:11:42,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:11:42,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:11:42,298 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8a15bd81-8abf-4615-9a1a-7a12e0f06440/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-12-01 15:11:42,338 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:11:42,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:11:42,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:11:42,341 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:11:42,341 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:11:42,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:11:42,341 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:11:42,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:11:42,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:11:42,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:11:42,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:11:42,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:11:42,344 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 15:11:42,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:11:42,344 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:11:42,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:11:42,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:11:42,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:11:42,345 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:11:42,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:11:42,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:11:42,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:11:42,346 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:11:42,346 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:11:42,346 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:11:42,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:11:42,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:11:42,347 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:11:42,347 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_8a15bd81-8abf-4615-9a1a-7a12e0f06440/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8a15bd81-8abf-4615-9a1a-7a12e0f06440/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7e1c1540b70904598fe5e82d3f5b8e6f2e3e9f6 [2020-12-01 15:11:42,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:11:42,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:11:42,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:11:42,684 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:11:42,691 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:11:42,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8a15bd81-8abf-4615-9a1a-7a12e0f06440/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c [2020-12-01 15:11:42,825 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8a15bd81-8abf-4615-9a1a-7a12e0f06440/bin/uautomizer/data/696dcb44e/ab7802fc29464275801a6901beb6e55b/FLAGbcc322fba [2020-12-01 15:11:43,384 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:11:43,386 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8a15bd81-8abf-4615-9a1a-7a12e0f06440/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c [2020-12-01 15:11:43,400 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8a15bd81-8abf-4615-9a1a-7a12e0f06440/bin/uautomizer/data/696dcb44e/ab7802fc29464275801a6901beb6e55b/FLAGbcc322fba [2020-12-01 15:11:43,718 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8a15bd81-8abf-4615-9a1a-7a12e0f06440/bin/uautomizer/data/696dcb44e/ab7802fc29464275801a6901beb6e55b [2020-12-01 15:11:43,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:11:43,723 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:11:43,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:11:43,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:11:43,730 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:11:43,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:11:43" (1/1) ... [2020-12-01 15:11:43,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57327b61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:43, skipping insertion in model container [2020-12-01 15:11:43,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:11:43" (1/1) ... [2020-12-01 15:11:43,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:11:43,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:11:43,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:11:43,941 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:11:43,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:11:43,987 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:11:43,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:43 WrapperNode [2020-12-01 15:11:43,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:11:43,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:11:43,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:11:43,989 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:11:43,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:43" (1/1) ... [2020-12-01 15:11:44,004 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:43" (1/1) ... [2020-12-01 15:11:44,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:11:44,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:11:44,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:11:44,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:11:44,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:43" (1/1) ... [2020-12-01 15:11:44,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:43" (1/1) ... [2020-12-01 15:11:44,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:43" (1/1) ... [2020-12-01 15:11:44,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:43" (1/1) ... [2020-12-01 15:11:44,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:43" (1/1) ... [2020-12-01 15:11:44,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:43" (1/1) ... [2020-12-01 15:11:44,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:43" (1/1) ... [2020-12-01 15:11:44,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:11:44,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:11:44,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:11:44,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:11:44,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a15bd81-8abf-4615-9a1a-7a12e0f06440/bin/uautomizer/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 [2020-12-01 15:11:44,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:11:44,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:11:44,284 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:11:44,284 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-01 15:11:44,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:11:44 BoogieIcfgContainer [2020-12-01 15:11:44,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:11:44,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:11:44,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:11:44,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:11:44,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:11:43" (1/3) ... [2020-12-01 15:11:44,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da045c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:11:44, skipping insertion in model container [2020-12-01 15:11:44,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:43" (2/3) ... [2020-12-01 15:11:44,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da045c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:11:44, skipping insertion in model container [2020-12-01 15:11:44,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:11:44" (3/3) ... [2020-12-01 15:11:44,295 INFO L111 eAbstractionObserver]: Analyzing ICFG PodelskiRybalchenko-LICS2004-Fig1.c [2020-12-01 15:11:44,308 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:11:44,310 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-12-01 15:11:44,319 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-01 15:11:44,339 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:11:44,339 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:11:44,339 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:11:44,339 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:11:44,339 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:11:44,339 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:11:44,340 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:11:44,340 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:11:44,352 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-12-01 15:11:44,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 15:11:44,357 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:11:44,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-01 15:11:44,359 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:11:44,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:11:44,365 INFO L82 PathProgramCache]: Analyzing trace with hash 963476, now seen corresponding path program 1 times [2020-12-01 15:11:44,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:11:44,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977675861] [2020-12-01 15:11:44,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:11:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:11:44,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:11:44,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977675861] [2020-12-01 15:11:44,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:11:44,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:11:44,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192738328] [2020-12-01 15:11:44,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:11:44,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:11:44,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:11:44,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:11:44,526 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2020-12-01 15:11:44,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:11:44,565 INFO L93 Difference]: Finished difference Result 33 states and 41 transitions. [2020-12-01 15:11:44,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:11:44,586 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-01 15:11:44,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:11:44,594 INFO L225 Difference]: With dead ends: 33 [2020-12-01 15:11:44,594 INFO L226 Difference]: Without dead ends: 11 [2020-12-01 15:11:44,597 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:11:44,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-01 15:11:44,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-12-01 15:11:44,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-01 15:11:44,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2020-12-01 15:11:44,646 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2020-12-01 15:11:44,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:11:44,647 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2020-12-01 15:11:44,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:11:44,647 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2020-12-01 15:11:44,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 15:11:44,648 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:11:44,648 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-01 15:11:44,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:11:44,648 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:11:44,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:11:44,649 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2020-12-01 15:11:44,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:11:44,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216232928] [2020-12-01 15:11:44,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:11:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:11:44,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:11:44,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216232928] [2020-12-01 15:11:44,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:11:44,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:11:44,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592184663] [2020-12-01 15:11:44,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:11:44,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:11:44,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:11:44,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:11:44,677 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2020-12-01 15:11:44,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:11:44,702 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2020-12-01 15:11:44,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:11:44,702 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-01 15:11:44,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:11:44,703 INFO L225 Difference]: With dead ends: 18 [2020-12-01 15:11:44,703 INFO L226 Difference]: Without dead ends: 17 [2020-12-01 15:11:44,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:11:44,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-12-01 15:11:44,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 12. [2020-12-01 15:11:44,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-12-01 15:11:44,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2020-12-01 15:11:44,709 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 4 [2020-12-01 15:11:44,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:11:44,709 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2020-12-01 15:11:44,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:11:44,709 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-12-01 15:11:44,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 15:11:44,710 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:11:44,710 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-01 15:11:44,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:11:44,710 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:11:44,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:11:44,711 INFO L82 PathProgramCache]: Analyzing trace with hash 29867816, now seen corresponding path program 1 times [2020-12-01 15:11:44,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:11:44,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121989613] [2020-12-01 15:11:44,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:11:44,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:11:44,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:11:44,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121989613] [2020-12-01 15:11:44,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:11:44,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:11:44,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367825189] [2020-12-01 15:11:44,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:11:44,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:11:44,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:11:44,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:11:44,740 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 3 states. [2020-12-01 15:11:44,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:11:44,753 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2020-12-01 15:11:44,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:11:44,754 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-01 15:11:44,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:11:44,754 INFO L225 Difference]: With dead ends: 12 [2020-12-01 15:11:44,755 INFO L226 Difference]: Without dead ends: 11 [2020-12-01 15:11:44,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:11:44,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-01 15:11:44,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-12-01 15:11:44,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-12-01 15:11:44,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-12-01 15:11:44,759 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 5 [2020-12-01 15:11:44,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:11:44,759 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-12-01 15:11:44,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:11:44,759 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-12-01 15:11:44,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 15:11:44,760 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:11:44,760 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-01 15:11:44,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 15:11:44,761 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:11:44,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:11:44,761 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2020-12-01 15:11:44,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:11:44,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018700719] [2020-12-01 15:11:44,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:11:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:11:44,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:11:44,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018700719] [2020-12-01 15:11:44,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:11:44,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:11:44,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055894264] [2020-12-01 15:11:44,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:11:44,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:11:44,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:11:44,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:11:44,791 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 3 states. [2020-12-01 15:11:44,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:11:44,805 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2020-12-01 15:11:44,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:11:44,806 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-01 15:11:44,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:11:44,807 INFO L225 Difference]: With dead ends: 12 [2020-12-01 15:11:44,807 INFO L226 Difference]: Without dead ends: 11 [2020-12-01 15:11:44,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:11:44,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-01 15:11:44,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-12-01 15:11:44,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-01 15:11:44,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2020-12-01 15:11:44,811 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 5 [2020-12-01 15:11:44,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:11:44,811 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-12-01 15:11:44,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:11:44,812 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2020-12-01 15:11:44,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 15:11:44,812 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:11:44,812 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-12-01 15:11:44,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-01 15:11:44,813 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:11:44,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:11:44,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1360166548, now seen corresponding path program 1 times [2020-12-01 15:11:44,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:11:44,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386179371] [2020-12-01 15:11:44,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:11:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:11:44,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:11:44,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386179371] [2020-12-01 15:11:44,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157517745] [2020-12-01 15:11:44,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a15bd81-8abf-4615-9a1a-7a12e0f06440/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:11:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:11:44,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 15:11:44,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:11:45,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:11:45,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:11:45,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-12-01 15:11:45,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963253353] [2020-12-01 15:11:45,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:11:45,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:11:45,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:11:45,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:11:45,075 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 4 states. [2020-12-01 15:11:45,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:11:45,129 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2020-12-01 15:11:45,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:11:45,130 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-01 15:11:45,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:11:45,131 INFO L225 Difference]: With dead ends: 21 [2020-12-01 15:11:45,132 INFO L226 Difference]: Without dead ends: 20 [2020-12-01 15:11:45,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:11:45,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-12-01 15:11:45,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2020-12-01 15:11:45,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-01 15:11:45,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2020-12-01 15:11:45,147 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 7 [2020-12-01 15:11:45,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:11:45,147 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-12-01 15:11:45,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:11:45,148 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-12-01 15:11:45,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:11:45,148 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:11:45,149 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2020-12-01 15:11:45,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:11:45,363 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:11:45,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:11:45,363 INFO L82 PathProgramCache]: Analyzing trace with hash -2000108501, now seen corresponding path program 2 times [2020-12-01 15:11:45,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:11:45,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329194929] [2020-12-01 15:11:45,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:11:45,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:11:45,416 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-01 15:11:45,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329194929] [2020-12-01 15:11:45,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762940730] [2020-12-01 15:11:45,417 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a15bd81-8abf-4615-9a1a-7a12e0f06440/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:11:45,445 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-01 15:11:45,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:11:45,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 15:11:45,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:11:45,474 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-01 15:11:45,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:11:45,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-12-01 15:11:45,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142206519] [2020-12-01 15:11:45,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:11:45,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:11:45,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:11:45,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:11:45,482 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 4 states. [2020-12-01 15:11:45,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:11:45,532 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2020-12-01 15:11:45,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:11:45,533 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-01 15:11:45,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:11:45,534 INFO L225 Difference]: With dead ends: 17 [2020-12-01 15:11:45,534 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:11:45,535 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:11:45,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:11:45,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:11:45,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:11:45,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:11:45,536 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-12-01 15:11:45,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:11:45,537 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:11:45,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:11:45,544 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:11:45,544 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:11:45,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:11:45,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:11:45,796 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-12-01 15:11:45,796 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:11:45,796 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2020-12-01 15:11:45,796 INFO L258 CegarLoopResult]: At program point L19-2(lines 19 21) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~x~0 1073741823) (<= 0 ULTIMATE.start_main_~x~0)) [2020-12-01 15:11:45,796 INFO L262 CegarLoopResult]: For program point L19-3(lines 19 21) no Hoare annotation was computed. [2020-12-01 15:11:45,797 INFO L265 CegarLoopResult]: At program point L17-2(lines 17 23) the Hoare annotation is: true [2020-12-01 15:11:45,797 INFO L262 CegarLoopResult]: For program point L17-3(lines 17 23) no Hoare annotation was computed. [2020-12-01 15:11:45,797 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-12-01 15:11:45,797 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2020-12-01 15:11:45,797 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:11:45,797 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:11:45,797 INFO L265 CegarLoopResult]: At program point L24(lines 13 25) the Hoare annotation is: true [2020-12-01 15:11:45,797 INFO L262 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-12-01 15:11:45,798 INFO L262 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-12-01 15:11:45,798 INFO L262 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-12-01 15:11:45,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:11:45 BoogieIcfgContainer [2020-12-01 15:11:45,815 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:11:45,815 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:11:45,815 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:11:45,815 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:11:45,816 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:11:44" (3/4) ... [2020-12-01 15:11:45,819 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:11:45,831 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-01 15:11:45,831 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 15:11:45,880 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8a15bd81-8abf-4615-9a1a-7a12e0f06440/bin/uautomizer/witness.graphml [2020-12-01 15:11:45,880 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:11:45,882 INFO L168 Benchmark]: Toolchain (without parser) took 2158.25 ms. Allocated memory is still 107.0 MB. Free memory was 75.6 MB in the beginning and 61.3 MB in the end (delta: 14.3 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:11:45,883 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 79.7 MB. Free memory was 39.7 MB in the beginning and 39.7 MB in the end (delta: 37.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:11:45,883 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.60 ms. Allocated memory is still 107.0 MB. Free memory was 75.4 MB in the beginning and 85.5 MB in the end (delta: -10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:11:45,884 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.80 ms. Allocated memory is still 107.0 MB. Free memory was 85.5 MB in the beginning and 84.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:11:45,885 INFO L168 Benchmark]: Boogie Preprocessor took 36.86 ms. Allocated memory is still 107.0 MB. Free memory was 84.1 MB in the beginning and 83.2 MB in the end (delta: 955.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:11:45,885 INFO L168 Benchmark]: RCFGBuilder took 224.98 ms. Allocated memory is still 107.0 MB. Free memory was 83.2 MB in the beginning and 73.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:11:45,890 INFO L168 Benchmark]: TraceAbstraction took 1526.85 ms. Allocated memory is still 107.0 MB. Free memory was 72.9 MB in the beginning and 63.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:11:45,891 INFO L168 Benchmark]: Witness Printer took 65.41 ms. Allocated memory is still 107.0 MB. Free memory was 63.4 MB in the beginning and 61.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:11:45,894 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 79.7 MB. Free memory was 39.7 MB in the beginning and 39.7 MB in the end (delta: 37.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 262.60 ms. Allocated memory is still 107.0 MB. Free memory was 75.4 MB in the beginning and 85.5 MB in the end (delta: -10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.80 ms. Allocated memory is still 107.0 MB. Free memory was 85.5 MB in the beginning and 84.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.86 ms. Allocated memory is still 107.0 MB. Free memory was 84.1 MB in the beginning and 83.2 MB in the end (delta: 955.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 224.98 ms. Allocated memory is still 107.0 MB. Free memory was 83.2 MB in the beginning and 73.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1526.85 ms. Allocated memory is still 107.0 MB. Free memory was 72.9 MB in the beginning and 63.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. * Witness Printer took 65.41 ms. Allocated memory is still 107.0 MB. Free memory was 63.4 MB in the beginning and 61.3 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.traceabstraction: - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (1 <= y && x <= 1073741823) && 0 <= x - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.4s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 39 SDtfs, 41 SDslu, 10 SDs, 0 SdLazy, 61 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 6 MinimizatonAttempts, 14 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 11 NumberOfFragments, 12 HoareAnnotationTreeSize, 3 FomulaSimplifications, 30 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 52 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 764 SizeOfPredicates, 1 NumberOfNonLiveVariables, 37 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 10/18 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...