./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.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_91f330b5-4e87-469b-a00f-e06a890ec7e0/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_91f330b5-4e87-469b-a00f-e06a890ec7e0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_91f330b5-4e87-469b-a00f-e06a890ec7e0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_91f330b5-4e87-469b-a00f-e06a890ec7e0/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_91f330b5-4e87-469b-a00f-e06a890ec7e0/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_91f330b5-4e87-469b-a00f-e06a890ec7e0/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:01:13,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:01:13,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:01:13,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:01:13,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:01:13,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:01:13,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:01:13,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:01:13,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:01:13,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:01:13,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:01:13,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:01:13,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:01:13,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:01:13,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:01:13,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:01:13,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:01:13,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:01:13,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:01:13,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:01:13,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:01:13,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:01:13,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:01:13,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:01:13,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:01:13,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:01:13,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:01:13,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:01:13,424 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:01:13,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:01:13,427 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:01:13,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:01:13,431 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:01:13,433 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:01:13,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:01:13,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:01:13,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:01:13,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:01:13,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:01:13,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:01:13,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:01:13,443 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_91f330b5-4e87-469b-a00f-e06a890ec7e0/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-11-30 02:01:13,495 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:01:13,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:01:13,506 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:01:13,507 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:01:13,507 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:01:13,507 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:01:13,508 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 02:01:13,508 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:01:13,508 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:01:13,508 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 02:01:13,510 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 02:01:13,510 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:01:13,510 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 02:01:13,511 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 02:01:13,514 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 02:01:13,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:01:13,516 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 02:01:13,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:01:13,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:01:13,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:01:13,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:01:13,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:01:13,532 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 02:01:13,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:01:13,534 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:01:13,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:01:13,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:01:13,535 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:01:13,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:01:13,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:01:13,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:01:13,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:01:13,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:01:13,537 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 02:01:13,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 02:01:13,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:01:13,538 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:01:13,538 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:01:13,539 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_91f330b5-4e87-469b-a00f-e06a890ec7e0/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_91f330b5-4e87-469b-a00f-e06a890ec7e0/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 [2020-11-30 02:01:13,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:01:13,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:01:13,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:01:13,872 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:01:13,872 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:01:13,874 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_91f330b5-4e87-469b-a00f-e06a890ec7e0/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c [2020-11-30 02:01:13,963 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_91f330b5-4e87-469b-a00f-e06a890ec7e0/bin/utaipan/data/08c136611/288ce67a2a70461c8c688624d158a151/FLAGf242b7f56 [2020-11-30 02:01:14,435 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:01:14,436 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_91f330b5-4e87-469b-a00f-e06a890ec7e0/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c [2020-11-30 02:01:14,455 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_91f330b5-4e87-469b-a00f-e06a890ec7e0/bin/utaipan/data/08c136611/288ce67a2a70461c8c688624d158a151/FLAGf242b7f56 [2020-11-30 02:01:14,824 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_91f330b5-4e87-469b-a00f-e06a890ec7e0/bin/utaipan/data/08c136611/288ce67a2a70461c8c688624d158a151 [2020-11-30 02:01:14,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:01:14,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:01:14,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:01:14,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:01:14,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:01:14,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:01:14" (1/1) ... [2020-11-30 02:01:14,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55576eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:14, skipping insertion in model container [2020-11-30 02:01:14,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:01:14" (1/1) ... [2020-11-30 02:01:14,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:01:14,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:01:15,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:01:15,021 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:01:15,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:01:15,046 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:01:15,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:15 WrapperNode [2020-11-30 02:01:15,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:01:15,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:01:15,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:01:15,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:01:15,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:15" (1/1) ... [2020-11-30 02:01:15,058 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:15" (1/1) ... [2020-11-30 02:01:15,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:01:15,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:01:15,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:01:15,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:01:15,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:15" (1/1) ... [2020-11-30 02:01:15,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:15" (1/1) ... [2020-11-30 02:01:15,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:15" (1/1) ... [2020-11-30 02:01:15,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:15" (1/1) ... [2020-11-30 02:01:15,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:15" (1/1) ... [2020-11-30 02:01:15,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:15" (1/1) ... [2020-11-30 02:01:15,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:15" (1/1) ... [2020-11-30 02:01:15,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:01:15,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:01:15,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:01:15,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:01:15,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_91f330b5-4e87-469b-a00f-e06a890ec7e0/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:01:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:01:15,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:01:15,408 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:01:15,408 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 02:01:15,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:01:15 BoogieIcfgContainer [2020-11-30 02:01:15,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:01:15,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:01:15,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:01:15,416 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:01:15,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:01:14" (1/3) ... [2020-11-30 02:01:15,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b58c65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:01:15, skipping insertion in model container [2020-11-30 02:01:15,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:15" (2/3) ... [2020-11-30 02:01:15,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b58c65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:01:15, skipping insertion in model container [2020-11-30 02:01:15,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:01:15" (3/3) ... [2020-11-30 02:01:15,420 INFO L111 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7b.c [2020-11-30 02:01:15,431 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:01:15,435 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-11-30 02:01:15,446 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-30 02:01:15,474 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:01:15,475 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:01:15,475 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:01:15,475 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:01:15,475 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:01:15,475 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:01:15,476 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:01:15,476 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:01:15,490 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-11-30 02:01:15,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 02:01:15,495 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:15,496 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 02:01:15,496 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:01:15,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:15,523 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2020-11-30 02:01:15,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:15,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130877372] [2020-11-30 02:01:15,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:15,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:15,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130877372] [2020-11-30 02:01:15,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:01:15,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 02:01:15,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15299668] [2020-11-30 02:01:15,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:01:15,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:15,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:01:15,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:01:15,756 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2020-11-30 02:01:15,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:15,800 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2020-11-30 02:01:15,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:01:15,801 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-30 02:01:15,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:15,811 INFO L225 Difference]: With dead ends: 17 [2020-11-30 02:01:15,811 INFO L226 Difference]: Without dead ends: 15 [2020-11-30 02:01:15,814 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 [2020-11-30 02:01:15,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-11-30 02:01:15,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-11-30 02:01:15,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-30 02:01:15,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2020-11-30 02:01:15,847 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 4 [2020-11-30 02:01:15,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:15,848 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2020-11-30 02:01:15,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:01:15,848 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-11-30 02:01:15,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 02:01:15,849 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:15,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 02:01:15,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 02:01:15,850 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:01:15,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:15,851 INFO L82 PathProgramCache]: Analyzing trace with hash 29869546, now seen corresponding path program 1 times [2020-11-30 02:01:15,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:15,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604705122] [2020-11-30 02:01:15,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:15,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:15,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:15,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604705122] [2020-11-30 02:01:15,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:01:15,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 02:01:15,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227168862] [2020-11-30 02:01:15,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:01:15,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:15,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:01:15,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:01:15,898 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2020-11-30 02:01:15,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:15,929 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-11-30 02:01:15,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:01:15,930 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-30 02:01:15,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:15,931 INFO L225 Difference]: With dead ends: 15 [2020-11-30 02:01:15,931 INFO L226 Difference]: Without dead ends: 14 [2020-11-30 02:01:15,932 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 [2020-11-30 02:01:15,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-11-30 02:01:15,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-11-30 02:01:15,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-11-30 02:01:15,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2020-11-30 02:01:15,936 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 5 [2020-11-30 02:01:15,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:15,937 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2020-11-30 02:01:15,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:01:15,937 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-11-30 02:01:15,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 02:01:15,938 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:15,938 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 02:01:15,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 02:01:15,939 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:01:15,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:15,940 INFO L82 PathProgramCache]: Analyzing trace with hash 29869738, now seen corresponding path program 1 times [2020-11-30 02:01:15,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:15,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996203822] [2020-11-30 02:01:15,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:15,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:15,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996203822] [2020-11-30 02:01:15,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:01:15,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 02:01:15,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705605698] [2020-11-30 02:01:15,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:01:15,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:15,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:01:15,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:01:15,976 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 3 states. [2020-11-30 02:01:16,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:16,005 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2020-11-30 02:01:16,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:01:16,007 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-30 02:01:16,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:16,008 INFO L225 Difference]: With dead ends: 14 [2020-11-30 02:01:16,008 INFO L226 Difference]: Without dead ends: 13 [2020-11-30 02:01:16,008 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 [2020-11-30 02:01:16,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-30 02:01:16,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-30 02:01:16,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-30 02:01:16,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2020-11-30 02:01:16,012 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 5 [2020-11-30 02:01:16,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:16,012 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2020-11-30 02:01:16,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:01:16,013 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-11-30 02:01:16,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 02:01:16,013 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:16,013 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 02:01:16,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 02:01:16,014 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:01:16,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:16,015 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2020-11-30 02:01:16,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:16,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097335824] [2020-11-30 02:01:16,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:16,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:16,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097335824] [2020-11-30 02:01:16,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:01:16,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:01:16,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221439552] [2020-11-30 02:01:16,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:01:16,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:16,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:01:16,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:01:16,073 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 3 states. [2020-11-30 02:01:16,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:16,126 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2020-11-30 02:01:16,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:01:16,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-30 02:01:16,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:16,127 INFO L225 Difference]: With dead ends: 14 [2020-11-30 02:01:16,127 INFO L226 Difference]: Without dead ends: 13 [2020-11-30 02:01:16,128 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 [2020-11-30 02:01:16,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-30 02:01:16,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2020-11-30 02:01:16,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-30 02:01:16,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2020-11-30 02:01:16,131 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2020-11-30 02:01:16,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:16,132 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2020-11-30 02:01:16,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:01:16,132 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-11-30 02:01:16,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 02:01:16,136 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:16,137 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 02:01:16,138 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 02:01:16,138 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:01:16,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:16,142 INFO L82 PathProgramCache]: Analyzing trace with hash 925955982, now seen corresponding path program 1 times [2020-11-30 02:01:16,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:16,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454919001] [2020-11-30 02:01:16,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:16,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:16,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454919001] [2020-11-30 02:01:16,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:01:16,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:01:16,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266393761] [2020-11-30 02:01:16,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:01:16,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:16,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:01:16,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:01:16,193 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 3 states. [2020-11-30 02:01:16,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:16,208 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2020-11-30 02:01:16,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:01:16,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-30 02:01:16,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:16,209 INFO L225 Difference]: With dead ends: 13 [2020-11-30 02:01:16,210 INFO L226 Difference]: Without dead ends: 12 [2020-11-30 02:01:16,210 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 [2020-11-30 02:01:16,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-11-30 02:01:16,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2020-11-30 02:01:16,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-30 02:01:16,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-11-30 02:01:16,213 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 6 [2020-11-30 02:01:16,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:16,214 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-11-30 02:01:16,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:01:16,214 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-11-30 02:01:16,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 02:01:16,214 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:16,214 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 02:01:16,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 02:01:16,215 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:01:16,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:16,216 INFO L82 PathProgramCache]: Analyzing trace with hash 925961940, now seen corresponding path program 1 times [2020-11-30 02:01:16,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:16,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293008725] [2020-11-30 02:01:16,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:16,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:16,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293008725] [2020-11-30 02:01:16,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:01:16,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:01:16,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842085213] [2020-11-30 02:01:16,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:01:16,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:16,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:01:16,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:01:16,243 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 3 states. [2020-11-30 02:01:16,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:16,277 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2020-11-30 02:01:16,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:01:16,278 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-30 02:01:16,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:16,278 INFO L225 Difference]: With dead ends: 12 [2020-11-30 02:01:16,278 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 02:01:16,279 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 [2020-11-30 02:01:16,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 02:01:16,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 02:01:16,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 02:01:16,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 02:01:16,279 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2020-11-30 02:01:16,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:16,280 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 02:01:16,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:01:16,280 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 02:01:16,280 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 02:01:16,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 02:01:16,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 02:01:16,400 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2020-11-30 02:01:16,400 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 02:01:16,400 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-11-30 02:01:16,401 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2020-11-30 02:01:16,401 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-11-30 02:01:16,401 INFO L274 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-11-30 02:01:16,401 INFO L274 CegarLoopResult]: For program point L23(lines 23 29) no Hoare annotation was computed. [2020-11-30 02:01:16,401 INFO L274 CegarLoopResult]: For program point L21(lines 21 29) no Hoare annotation was computed. [2020-11-30 02:01:16,402 INFO L270 CegarLoopResult]: At program point L23-2(lines 20 30) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~z~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2020-11-30 02:01:16,402 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2020-11-30 02:01:16,402 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-11-30 02:01:16,402 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 02:01:16,402 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2020-11-30 02:01:16,402 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-11-30 02:01:16,402 INFO L274 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-11-30 02:01:16,402 INFO L274 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-11-30 02:01:16,403 INFO L274 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-11-30 02:01:16,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:01:16 BoogieIcfgContainer [2020-11-30 02:01:16,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:01:16,423 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:01:16,423 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:01:16,423 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:01:16,424 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:01:15" (3/4) ... [2020-11-30 02:01:16,428 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 02:01:16,440 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-30 02:01:16,440 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-30 02:01:16,441 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:01:16,487 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_91f330b5-4e87-469b-a00f-e06a890ec7e0/bin/utaipan/witness.graphml [2020-11-30 02:01:16,487 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:01:16,489 INFO L168 Benchmark]: Toolchain (without parser) took 1659.72 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 61.4 MB in the beginning and 81.3 MB in the end (delta: -19.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:01:16,490 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 73.4 MB. Free memory is still 45.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:01:16,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 216.74 ms. Allocated memory is still 88.1 MB. Free memory was 61.1 MB in the beginning and 61.4 MB in the end (delta: -250.7 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 02:01:16,491 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.45 ms. Allocated memory is still 88.1 MB. Free memory was 61.4 MB in the beginning and 60.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:01:16,492 INFO L168 Benchmark]: Boogie Preprocessor took 16.75 ms. Allocated memory is still 88.1 MB. Free memory was 60.2 MB in the beginning and 59.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:01:16,492 INFO L168 Benchmark]: RCFGBuilder took 318.86 ms. Allocated memory is still 88.1 MB. Free memory was 59.1 MB in the beginning and 47.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 02:01:16,493 INFO L168 Benchmark]: TraceAbstraction took 1009.86 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 47.2 MB in the beginning and 83.4 MB in the end (delta: -36.2 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. [2020-11-30 02:01:16,494 INFO L168 Benchmark]: Witness Printer took 64.44 ms. Allocated memory is still 107.0 MB. Free memory was 83.4 MB in the beginning and 81.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:01:16,497 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 73.4 MB. Free memory is still 45.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 216.74 ms. Allocated memory is still 88.1 MB. Free memory was 61.1 MB in the beginning and 61.4 MB in the end (delta: -250.7 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 25.45 ms. Allocated memory is still 88.1 MB. Free memory was 61.4 MB in the beginning and 60.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.75 ms. Allocated memory is still 88.1 MB. Free memory was 60.2 MB in the beginning and 59.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 318.86 ms. Allocated memory is still 88.1 MB. Free memory was 59.1 MB in the beginning and 47.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1009.86 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 47.2 MB in the beginning and 83.4 MB in the end (delta: -36.2 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. * Witness Printer took 64.44 ms. Allocated memory is still 107.0 MB. Free memory was 83.4 MB in the beginning and 81.3 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: 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: 24]: 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (x <= 2147483647 && z <= 2147483647) && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 69 SDtfs, 53 SDslu, 0 SDs, 0 SdLazy, 30 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 10 HoareAnnotationTreeSize, 1 FomulaSimplifications, 84 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 293 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...