./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2.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_60948f63-9fc3-43f7-b507-76da75fdb793/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_60948f63-9fc3-43f7-b507-76da75fdb793/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_60948f63-9fc3-43f7-b507-76da75fdb793/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_60948f63-9fc3-43f7-b507-76da75fdb793/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_60948f63-9fc3-43f7-b507-76da75fdb793/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_60948f63-9fc3-43f7-b507-76da75fdb793/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 ff3652fa62b489d4e6a4a85c8349c06d13bd2232 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 21:04:18,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:04:18,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:04:18,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:04:18,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:04:18,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:04:18,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:04:18,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:04:18,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:04:18,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:04:18,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:04:18,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:04:18,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:04:18,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:04:18,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:04:18,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:04:18,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:04:18,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:04:18,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:04:18,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:04:18,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:04:18,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:04:18,483 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:04:18,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:04:18,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:04:18,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:04:18,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:04:18,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:04:18,498 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:04:18,499 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:04:18,500 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:04:18,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:04:18,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:04:18,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:04:18,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:04:18,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:04:18,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:04:18,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:04:18,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:04:18,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:04:18,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:04:18,512 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_60948f63-9fc3-43f7-b507-76da75fdb793/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-29 21:04:18,551 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:04:18,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:04:18,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:04:18,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:04:18,553 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:04:18,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:04:18,554 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 21:04:18,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:04:18,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:04:18,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:04:18,556 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:04:18,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:04:18,556 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 21:04:18,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:04:18,557 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:04:18,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:04:18,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:04:18,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:04:18,558 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:04:18,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 21:04:18,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:04:18,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:04:18,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:04:18,559 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:04:18,559 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:04:18,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 21:04:18,560 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:04:18,560 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:04:18,560 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_60948f63-9fc3-43f7-b507-76da75fdb793/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_60948f63-9fc3-43f7-b507-76da75fdb793/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff3652fa62b489d4e6a4a85c8349c06d13bd2232 [2020-11-29 21:04:18,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:04:18,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:04:18,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:04:18,897 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:04:18,905 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:04:18,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_60948f63-9fc3-43f7-b507-76da75fdb793/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2.c [2020-11-29 21:04:19,003 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_60948f63-9fc3-43f7-b507-76da75fdb793/bin/uautomizer/data/8c4209301/27dcaeb5ab0c48c9b64ca2ab67d93b73/FLAG50ac0a9df [2020-11-29 21:04:19,446 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:04:19,455 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_60948f63-9fc3-43f7-b507-76da75fdb793/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2.c [2020-11-29 21:04:19,467 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_60948f63-9fc3-43f7-b507-76da75fdb793/bin/uautomizer/data/8c4209301/27dcaeb5ab0c48c9b64ca2ab67d93b73/FLAG50ac0a9df [2020-11-29 21:04:19,827 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_60948f63-9fc3-43f7-b507-76da75fdb793/bin/uautomizer/data/8c4209301/27dcaeb5ab0c48c9b64ca2ab67d93b73 [2020-11-29 21:04:19,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:04:19,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:04:19,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:04:19,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:04:19,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:04:19,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:04:19" (1/1) ... [2020-11-29 21:04:19,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@259db9a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:04:19, skipping insertion in model container [2020-11-29 21:04:19,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:04:19" (1/1) ... [2020-11-29 21:04:19,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:04:19,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:04:20,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:04:20,038 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:04:20,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:04:20,069 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:04:20,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:04:20 WrapperNode [2020-11-29 21:04:20,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:04:20,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:04:20,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:04:20,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:04:20,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:04:20" (1/1) ... [2020-11-29 21:04:20,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:04:20" (1/1) ... [2020-11-29 21:04:20,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:04:20,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:04:20,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:04:20,103 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:04:20,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:04:20" (1/1) ... [2020-11-29 21:04:20,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:04:20" (1/1) ... [2020-11-29 21:04:20,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:04:20" (1/1) ... [2020-11-29 21:04:20,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:04:20" (1/1) ... [2020-11-29 21:04:20,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:04:20" (1/1) ... [2020-11-29 21:04:20,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:04:20" (1/1) ... [2020-11-29 21:04:20,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:04:20" (1/1) ... [2020-11-29 21:04:20,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:04:20,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:04:20,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:04:20,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:04:20,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:04:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60948f63-9fc3-43f7-b507-76da75fdb793/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 [2020-11-29 21:04:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:04:20,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:04:20,409 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:04:20,409 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-29 21:04:20,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:04:20 BoogieIcfgContainer [2020-11-29 21:04:20,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:04:20,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 21:04:20,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 21:04:20,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 21:04:20,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:04:19" (1/3) ... [2020-11-29 21:04:20,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b0a4f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:04:20, skipping insertion in model container [2020-11-29 21:04:20,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:04:20" (2/3) ... [2020-11-29 21:04:20,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b0a4f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:04:20, skipping insertion in model container [2020-11-29 21:04:20,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:04:20" (3/3) ... [2020-11-29 21:04:20,431 INFO L111 eAbstractionObserver]: Analyzing ICFG PodelskiRybalchenko-TACAS2011-Fig2.c [2020-11-29 21:04:20,442 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 21:04:20,446 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-29 21:04:20,458 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-29 21:04:20,481 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 21:04:20,481 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 21:04:20,482 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 21:04:20,482 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:04:20,482 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:04:20,482 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 21:04:20,482 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:04:20,482 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 21:04:20,499 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-11-29 21:04:20,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 21:04:20,504 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:04:20,505 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-29 21:04:20,505 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 21:04:20,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:04:20,511 INFO L82 PathProgramCache]: Analyzing trace with hash 963476, now seen corresponding path program 1 times [2020-11-29 21:04:20,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:04:20,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781072220] [2020-11-29 21:04:20,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:04:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:04:20,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:04:20,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781072220] [2020-11-29 21:04:20,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:04:20,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-29 21:04:20,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684410719] [2020-11-29 21:04:20,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:04:20,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:04:20,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:04:20,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:04:20,715 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2020-11-29 21:04:20,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:04:20,773 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2020-11-29 21:04:20,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:04:20,776 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-29 21:04:20,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:04:20,783 INFO L225 Difference]: With dead ends: 28 [2020-11-29 21:04:20,783 INFO L226 Difference]: Without dead ends: 10 [2020-11-29 21:04:20,786 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 [2020-11-29 21:04:20,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-11-29 21:04:20,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-11-29 21:04:20,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-29 21:04:20,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2020-11-29 21:04:20,814 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2020-11-29 21:04:20,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:04:20,814 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2020-11-29 21:04:20,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:04:20,815 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2020-11-29 21:04:20,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 21:04:20,815 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:04:20,815 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-29 21:04:20,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 21:04:20,816 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 21:04:20,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:04:20,817 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2020-11-29 21:04:20,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:04:20,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416544709] [2020-11-29 21:04:20,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:04:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:04:20,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:04:20,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416544709] [2020-11-29 21:04:20,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:04:20,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:04:20,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906751127] [2020-11-29 21:04:20,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:04:20,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:04:20,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:04:20,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:04:20,845 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2020-11-29 21:04:20,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:04:20,891 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2020-11-29 21:04:20,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:04:20,892 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-29 21:04:20,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:04:20,893 INFO L225 Difference]: With dead ends: 18 [2020-11-29 21:04:20,893 INFO L226 Difference]: Without dead ends: 17 [2020-11-29 21:04:20,894 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 [2020-11-29 21:04:20,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-29 21:04:20,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 12. [2020-11-29 21:04:20,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-29 21:04:20,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2020-11-29 21:04:20,898 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 4 [2020-11-29 21:04:20,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:04:20,899 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2020-11-29 21:04:20,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:04:20,899 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-11-29 21:04:20,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 21:04:20,899 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:04:20,899 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-29 21:04:20,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 21:04:20,900 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 21:04:20,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:04:20,901 INFO L82 PathProgramCache]: Analyzing trace with hash 29867816, now seen corresponding path program 1 times [2020-11-29 21:04:20,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:04:20,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948622349] [2020-11-29 21:04:20,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:04:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:04:20,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:04:20,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948622349] [2020-11-29 21:04:20,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:04:20,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:04:20,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117710230] [2020-11-29 21:04:20,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:04:20,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:04:20,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:04:20,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:04:20,939 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 3 states. [2020-11-29 21:04:20,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:04:20,963 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2020-11-29 21:04:20,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:04:20,964 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-29 21:04:20,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:04:20,964 INFO L225 Difference]: With dead ends: 12 [2020-11-29 21:04:20,964 INFO L226 Difference]: Without dead ends: 11 [2020-11-29 21:04:20,965 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 [2020-11-29 21:04:20,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-11-29 21:04:20,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-29 21:04:20,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-29 21:04:20,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-11-29 21:04:20,968 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 5 [2020-11-29 21:04:20,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:04:20,969 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-11-29 21:04:20,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:04:20,969 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-11-29 21:04:20,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 21:04:20,970 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:04:20,970 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-29 21:04:20,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 21:04:20,971 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 21:04:20,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:04:20,972 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2020-11-29 21:04:20,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:04:20,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074670717] [2020-11-29 21:04:20,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:04:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:04:21,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:04:21,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074670717] [2020-11-29 21:04:21,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:04:21,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:04:21,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52871882] [2020-11-29 21:04:21,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:04:21,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:04:21,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:04:21,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:04:21,003 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 3 states. [2020-11-29 21:04:21,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:04:21,028 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2020-11-29 21:04:21,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:04:21,029 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-29 21:04:21,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:04:21,029 INFO L225 Difference]: With dead ends: 12 [2020-11-29 21:04:21,029 INFO L226 Difference]: Without dead ends: 11 [2020-11-29 21:04:21,030 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 [2020-11-29 21:04:21,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-11-29 21:04:21,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-11-29 21:04:21,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-29 21:04:21,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2020-11-29 21:04:21,034 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 5 [2020-11-29 21:04:21,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:04:21,034 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-11-29 21:04:21,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:04:21,034 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2020-11-29 21:04:21,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 21:04:21,035 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:04:21,035 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-11-29 21:04:21,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 21:04:21,035 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 21:04:21,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:04:21,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1360166548, now seen corresponding path program 1 times [2020-11-29 21:04:21,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:04:21,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354911073] [2020-11-29 21:04:21,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:04:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:04:21,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:04:21,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354911073] [2020-11-29 21:04:21,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982301293] [2020-11-29 21:04:21,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60948f63-9fc3-43f7-b507-76da75fdb793/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 21:04:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:04:21,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 21:04:21,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:04:21,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:04:21,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 21:04:21,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-11-29 21:04:21,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030842809] [2020-11-29 21:04:21,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 21:04:21,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:04:21,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 21:04:21,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:04:21,163 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 4 states. [2020-11-29 21:04:21,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:04:21,224 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2020-11-29 21:04:21,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 21:04:21,225 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-29 21:04:21,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:04:21,225 INFO L225 Difference]: With dead ends: 21 [2020-11-29 21:04:21,225 INFO L226 Difference]: Without dead ends: 20 [2020-11-29 21:04:21,226 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:04:21,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-29 21:04:21,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2020-11-29 21:04:21,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-29 21:04:21,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2020-11-29 21:04:21,231 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 7 [2020-11-29 21:04:21,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:04:21,231 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-11-29 21:04:21,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 21:04:21,231 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-11-29 21:04:21,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 21:04:21,232 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:04:21,232 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2020-11-29 21:04:21,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 21:04:21,441 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 21:04:21,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:04:21,442 INFO L82 PathProgramCache]: Analyzing trace with hash -2000108501, now seen corresponding path program 2 times [2020-11-29 21:04:21,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:04:21,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328506271] [2020-11-29 21:04:21,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:04:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:04:21,519 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:04:21,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328506271] [2020-11-29 21:04:21,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072898575] [2020-11-29 21:04:21,520 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60948f63-9fc3-43f7-b507-76da75fdb793/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 21:04:21,585 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-11-29 21:04:21,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 21:04:21,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 21:04:21,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:04:21,726 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-29 21:04:21,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 21:04:21,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 2] total 6 [2020-11-29 21:04:21,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11543512] [2020-11-29 21:04:21,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 21:04:21,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:04:21,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 21:04:21,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-29 21:04:21,728 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 7 states. [2020-11-29 21:04:21,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:04:21,916 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2020-11-29 21:04:21,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 21:04:21,917 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2020-11-29 21:04:21,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:04:21,917 INFO L225 Difference]: With dead ends: 30 [2020-11-29 21:04:21,918 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 21:04:21,918 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-11-29 21:04:21,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 21:04:21,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 21:04:21,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 21:04:21,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 21:04:21,919 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-11-29 21:04:21,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:04:21,919 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 21:04:21,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 21:04:21,919 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 21:04:21,920 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 21:04:22,120 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 21:04:22,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 21:04:22,196 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-11-29 21:04:22,196 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 21:04:22,196 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2020-11-29 21:04:22,197 INFO L270 CegarLoopResult]: At program point L19-2(lines 19 21) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 ULTIMATE.start_main_~x~0)) [2020-11-29 21:04:22,197 INFO L274 CegarLoopResult]: For program point L19-3(lines 19 21) no Hoare annotation was computed. [2020-11-29 21:04:22,197 INFO L270 CegarLoopResult]: At program point L17-2(lines 17 23) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2020-11-29 21:04:22,197 INFO L274 CegarLoopResult]: For program point L17-3(lines 17 23) no Hoare annotation was computed. [2020-11-29 21:04:22,197 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-11-29 21:04:22,197 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2020-11-29 21:04:22,197 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 21:04:22,197 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 21:04:22,198 INFO L270 CegarLoopResult]: At program point L24(lines 13 25) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2020-11-29 21:04:22,198 INFO L274 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-11-29 21:04:22,198 INFO L274 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-11-29 21:04:22,198 INFO L274 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-11-29 21:04:22,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 09:04:22 BoogieIcfgContainer [2020-11-29 21:04:22,213 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 21:04:22,213 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:04:22,213 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:04:22,213 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:04:22,214 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:04:20" (3/4) ... [2020-11-29 21:04:22,217 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 21:04:22,226 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-29 21:04:22,227 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 21:04:22,255 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_60948f63-9fc3-43f7-b507-76da75fdb793/bin/uautomizer/witness.graphml [2020-11-29 21:04:22,255 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:04:22,257 INFO L168 Benchmark]: Toolchain (without parser) took 2423.69 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 54.1 MB in the beginning and 46.9 MB in the end (delta: 7.2 MB). Peak memory consumption was 28.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:04:22,258 INFO L168 Benchmark]: CDTParser took 0.87 ms. Allocated memory is still 83.9 MB. Free memory was 55.1 MB in the beginning and 55.1 MB in the end (delta: 27.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:04:22,258 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.69 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 53.9 MB in the beginning and 84.2 MB in the end (delta: -30.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:04:22,259 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.56 ms. Allocated memory is still 104.9 MB. Free memory was 84.2 MB in the beginning and 82.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:04:22,259 INFO L168 Benchmark]: Boogie Preprocessor took 17.52 ms. Allocated memory is still 104.9 MB. Free memory was 82.8 MB in the beginning and 82.2 MB in the end (delta: 613.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:04:22,260 INFO L168 Benchmark]: RCFGBuilder took 289.52 ms. Allocated memory is still 104.9 MB. Free memory was 81.9 MB in the beginning and 73.0 MB in the end (delta: 9.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:04:22,260 INFO L168 Benchmark]: TraceAbstraction took 1800.34 ms. Allocated memory is still 104.9 MB. Free memory was 72.4 MB in the beginning and 49.7 MB in the end (delta: 22.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:04:22,261 INFO L168 Benchmark]: Witness Printer took 42.17 ms. Allocated memory is still 104.9 MB. Free memory was 49.0 MB in the beginning and 46.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:04:22,264 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87 ms. Allocated memory is still 83.9 MB. Free memory was 55.1 MB in the beginning and 55.1 MB in the end (delta: 27.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 235.69 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 53.9 MB in the beginning and 84.2 MB in the end (delta: -30.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.56 ms. Allocated memory is still 104.9 MB. Free memory was 84.2 MB in the beginning and 82.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.52 ms. Allocated memory is still 104.9 MB. Free memory was 82.8 MB in the beginning and 82.2 MB in the end (delta: 613.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 289.52 ms. Allocated memory is still 104.9 MB. Free memory was 81.9 MB in the beginning and 73.0 MB in the end (delta: 9.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1800.34 ms. Allocated memory is still 104.9 MB. Free memory was 72.4 MB in the beginning and 49.7 MB in the end (delta: 22.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. * Witness Printer took 42.17 ms. Allocated memory is still 104.9 MB. Free memory was 49.0 MB in the beginning and 46.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: x <= 2147483647 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (1 <= y && x <= 2147483647) && 0 <= x - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: x <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 33 SDtfs, 58 SDslu, 7 SDs, 0 SdLazy, 79 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 14 NumberOfFragments, 16 HoareAnnotationTreeSize, 3 FomulaSimplifications, 513 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 52 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 788 SizeOfPredicates, 1 NumberOfNonLiveVariables, 35 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 5/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...