./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Ex.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_e42f16cf-38b7-4833-a1d6-dc209acd9a03/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e42f16cf-38b7-4833-a1d6-dc209acd9a03/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e42f16cf-38b7-4833-a1d6-dc209acd9a03/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e42f16cf-38b7-4833-a1d6-dc209acd9a03/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Ex.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e42f16cf-38b7-4833-a1d6-dc209acd9a03/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e42f16cf-38b7-4833-a1d6-dc209acd9a03/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 2730fad31c2d66a3c2c270d6382235d7b06cc84c .................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:21:37,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:21:37,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:21:37,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:21:37,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:21:37,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:21:37,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:21:37,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:21:37,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:21:37,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:21:37,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:21:37,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:21:37,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:21:37,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:21:37,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:21:37,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:21:37,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:21:37,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:21:37,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:21:37,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:21:37,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:21:37,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:21:37,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:21:37,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:21:37,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:21:37,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:21:37,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:21:37,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:21:37,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:21:37,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:21:37,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:21:37,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:21:37,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:21:37,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:21:37,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:21:37,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:21:37,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:21:37,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:21:37,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:21:37,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:21:37,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:21:37,490 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e42f16cf-38b7-4833-a1d6-dc209acd9a03/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-28 03:21:37,526 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:21:37,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:21:37,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:21:37,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:21:37,534 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:21:37,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:21:37,534 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:21:37,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:21:37,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:21:37,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:21:37,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:21:37,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:21:37,535 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 03:21:37,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:21:37,536 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:21:37,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:21:37,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:21:37,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:21:37,537 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:21:37,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:21:37,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:21:37,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:21:37,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:21:37,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:21:37,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:21:37,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:21:37,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:21:37,539 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:21:37,539 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_e42f16cf-38b7-4833-a1d6-dc209acd9a03/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e42f16cf-38b7-4833-a1d6-dc209acd9a03/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2730fad31c2d66a3c2c270d6382235d7b06cc84c [2020-11-28 03:21:37,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:21:37,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:21:37,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:21:37,859 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:21:37,860 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:21:37,862 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e42f16cf-38b7-4833-a1d6-dc209acd9a03/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Ex.c [2020-11-28 03:21:37,944 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e42f16cf-38b7-4833-a1d6-dc209acd9a03/bin/uautomizer/data/9e5a4b122/26c7170a99634837a1659239feff7d2c/FLAG30f6fa4c9 [2020-11-28 03:21:38,391 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:21:38,392 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e42f16cf-38b7-4833-a1d6-dc209acd9a03/sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Ex.c [2020-11-28 03:21:38,398 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e42f16cf-38b7-4833-a1d6-dc209acd9a03/bin/uautomizer/data/9e5a4b122/26c7170a99634837a1659239feff7d2c/FLAG30f6fa4c9 [2020-11-28 03:21:38,788 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e42f16cf-38b7-4833-a1d6-dc209acd9a03/bin/uautomizer/data/9e5a4b122/26c7170a99634837a1659239feff7d2c [2020-11-28 03:21:38,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:21:38,793 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:21:38,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:38,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:21:38,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:21:38,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10ee322f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38, skipping insertion in model container [2020-11-28 03:21:38,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:21:38,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:21:38,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:38,950 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:21:38,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:38,988 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:21:38,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38 WrapperNode [2020-11-28 03:21:38,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:38,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:38,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:21:38,996 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:21:39,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:39,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:39,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:39,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:21:39,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:21:39,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:21:39,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:39,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:39,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:39,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:39,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:39,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:39,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:39,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:21:39,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:21:39,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:21:39,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:21:39,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e42f16cf-38b7-4833-a1d6-dc209acd9a03/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 [2020-11-28 03:21:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:21:39,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:21:39,343 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:21:39,343 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 03:21:39,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:39 BoogieIcfgContainer [2020-11-28 03:21:39,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:21:39,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:21:39,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:21:39,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:21:39,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:21:38" (1/3) ... [2020-11-28 03:21:39,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69652f6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:21:39, skipping insertion in model container [2020-11-28 03:21:39,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (2/3) ... [2020-11-28 03:21:39,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69652f6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:21:39, skipping insertion in model container [2020-11-28 03:21:39,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:39" (3/3) ... [2020-11-28 03:21:39,355 INFO L111 eAbstractionObserver]: Analyzing ICFG KroeningSharyginaTsitovichWintersteiger-CAV2010-Ex.c [2020-11-28 03:21:39,364 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:21:39,368 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-28 03:21:39,379 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-28 03:21:39,400 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:21:39,400 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:21:39,400 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:21:39,400 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:21:39,401 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:21:39,401 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:21:39,401 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:21:39,401 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:21:39,412 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-11-28 03:21:39,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 03:21:39,416 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:39,417 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 03:21:39,417 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:21:39,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:39,428 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2020-11-28 03:21:39,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:39,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209195649] [2020-11-28 03:21:39,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:39,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:39,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209195649] [2020-11-28 03:21:39,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:39,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:21:39,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197130416] [2020-11-28 03:21:39,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:21:39,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:39,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:21:39,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:21:39,638 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2020-11-28 03:21:39,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:39,708 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-11-28 03:21:39,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:21:39,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-28 03:21:39,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:39,724 INFO L225 Difference]: With dead ends: 19 [2020-11-28 03:21:39,725 INFO L226 Difference]: Without dead ends: 9 [2020-11-28 03:21:39,727 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 [2020-11-28 03:21:39,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-11-28 03:21:39,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-11-28 03:21:39,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-28 03:21:39,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2020-11-28 03:21:39,787 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 4 [2020-11-28 03:21:39,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:39,787 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2020-11-28 03:21:39,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:21:39,787 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2020-11-28 03:21:39,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 03:21:39,788 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:39,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 03:21:39,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:21:39,789 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:21:39,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:39,790 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2020-11-28 03:21:39,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:39,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565041755] [2020-11-28 03:21:39,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:39,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:39,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565041755] [2020-11-28 03:21:39,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:39,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-28 03:21:39,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988953899] [2020-11-28 03:21:39,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:21:39,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:39,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:21:39,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:21:39,837 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 3 states. [2020-11-28 03:21:39,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:39,898 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2020-11-28 03:21:39,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:21:39,899 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-28 03:21:39,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:39,899 INFO L225 Difference]: With dead ends: 9 [2020-11-28 03:21:39,899 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:21:39,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:21:39,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:21:39,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:21:39,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:21:39,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:21:39,901 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-11-28 03:21:39,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:39,902 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:21:39,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:21:39,902 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:21:39,902 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:21:39,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:21:39,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:21:39,917 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2020-11-28 03:21:39,918 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:21:39,918 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2020-11-28 03:21:39,918 INFO L274 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-11-28 03:21:39,918 INFO L274 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-11-28 03:21:39,918 INFO L274 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-11-28 03:21:39,918 INFO L274 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-11-28 03:21:39,919 INFO L274 CegarLoopResult]: For program point L17-2(lines 17 23) no Hoare annotation was computed. [2020-11-28 03:21:39,919 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2020-11-28 03:21:39,919 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2020-11-28 03:21:39,919 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:21:39,919 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:21:39,920 INFO L277 CegarLoopResult]: At program point L24(lines 14 25) the Hoare annotation is: true [2020-11-28 03:21:39,920 INFO L274 CegarLoopResult]: For program point L18(lines 18 22) no Hoare annotation was computed. [2020-11-28 03:21:39,920 INFO L270 CegarLoopResult]: At program point L18-2(lines 17 23) the Hoare annotation is: (<= 0 (+ ULTIMATE.start_main_~i~0 2147483648)) [2020-11-28 03:21:39,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:21:39 BoogieIcfgContainer [2020-11-28 03:21:39,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:21:39,937 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:21:39,937 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:21:39,937 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:21:39,938 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:39" (3/4) ... [2020-11-28 03:21:39,941 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:21:39,952 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 03:21:39,952 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 03:21:39,990 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e42f16cf-38b7-4833-a1d6-dc209acd9a03/bin/uautomizer/witness.graphml [2020-11-28 03:21:39,990 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:21:39,992 INFO L168 Benchmark]: Toolchain (without parser) took 1198.33 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 62.2 MB in the beginning and 81.7 MB in the end (delta: -19.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:39,993 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 92.3 MB. Free memory is still 49.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:39,993 INFO L168 Benchmark]: CACSL2BoogieTranslator took 197.40 ms. Allocated memory is still 92.3 MB. Free memory was 62.0 MB in the beginning and 70.4 MB in the end (delta: -8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:39,994 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.77 ms. Allocated memory is still 92.3 MB. Free memory was 70.4 MB in the beginning and 69.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:39,994 INFO L168 Benchmark]: Boogie Preprocessor took 34.35 ms. Allocated memory is still 92.3 MB. Free memory was 69.1 MB in the beginning and 68.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:39,995 INFO L168 Benchmark]: RCFGBuilder took 281.34 ms. Allocated memory is still 92.3 MB. Free memory was 68.1 MB in the beginning and 59.7 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:39,996 INFO L168 Benchmark]: TraceAbstraction took 589.30 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 59.0 MB in the beginning and 83.8 MB in the end (delta: -24.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:39,997 INFO L168 Benchmark]: Witness Printer took 53.19 ms. Allocated memory is still 111.1 MB. Free memory was 83.8 MB in the beginning and 81.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:40,000 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 92.3 MB. Free memory is still 49.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 197.40 ms. Allocated memory is still 92.3 MB. Free memory was 62.0 MB in the beginning and 70.4 MB in the end (delta: -8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.77 ms. Allocated memory is still 92.3 MB. Free memory was 70.4 MB in the beginning and 69.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.35 ms. Allocated memory is still 92.3 MB. Free memory was 69.1 MB in the beginning and 68.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 281.34 ms. Allocated memory is still 92.3 MB. Free memory was 68.1 MB in the beginning and 59.7 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 589.30 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 59.0 MB in the beginning and 83.8 MB in the end (delta: -24.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 53.19 ms. Allocated memory is still 111.1 MB. Free memory was 83.8 MB in the beginning and 81.7 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: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: 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: 0 <= i + 2147483648 - InvariantResult [Line: 14]: 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: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 7 SDslu, 3 SDs, 0 SdLazy, 15 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 6 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, 101 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...