./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.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_d57e1c8d-3a7f-4642-8aae-b16507eadeba/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d57e1c8d-3a7f-4642-8aae-b16507eadeba/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d57e1c8d-3a7f-4642-8aae-b16507eadeba/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d57e1c8d-3a7f-4642-8aae-b16507eadeba/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d57e1c8d-3a7f-4642-8aae-b16507eadeba/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d57e1c8d-3a7f-4642-8aae-b16507eadeba/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 f9de9875f09e594325a645528f016ce12ac5c646 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:10:51,483 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:10:51,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:10:51,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:10:51,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:10:51,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:10:51,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:10:51,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:10:51,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:10:51,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:10:51,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:10:51,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:10:51,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:10:51,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:10:51,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:10:51,562 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:10:51,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:10:51,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:10:51,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:10:51,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:10:51,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:10:51,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:10:51,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:10:51,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:10:51,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:10:51,582 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:10:51,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:10:51,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:10:51,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:10:51,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:10:51,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:10:51,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:10:51,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:10:51,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:10:51,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:10:51,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:10:51,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:10:51,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:10:51,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:10:51,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:10:51,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:10:51,604 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d57e1c8d-3a7f-4642-8aae-b16507eadeba/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-30 00:10:51,644 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:10:51,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:10:51,647 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:10:51,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:10:51,648 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:10:51,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:10:51,648 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:10:51,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:10:51,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:10:51,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:10:51,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:10:51,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:10:51,650 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 00:10:51,651 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:10:51,651 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:10:51,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:10:51,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:10:51,652 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:10:51,652 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:10:51,652 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:10:51,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:10:51,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:10:51,653 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:10:51,653 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:10:51,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:10:51,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:10:51,654 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:10:51,654 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:10:51,654 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_d57e1c8d-3a7f-4642-8aae-b16507eadeba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d57e1c8d-3a7f-4642-8aae-b16507eadeba/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9de9875f09e594325a645528f016ce12ac5c646 [2020-11-30 00:10:51,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:10:51,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:10:51,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:10:51,966 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:10:51,967 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:10:51,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d57e1c8d-3a7f-4642-8aae-b16507eadeba/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2020-11-30 00:10:52,059 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d57e1c8d-3a7f-4642-8aae-b16507eadeba/bin/uautomizer/data/2a7fd4f7a/ce3f1ea8e421402b9863e638c95ec6b1/FLAGd701167a9 [2020-11-30 00:10:52,551 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:10:52,552 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d57e1c8d-3a7f-4642-8aae-b16507eadeba/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2020-11-30 00:10:52,572 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d57e1c8d-3a7f-4642-8aae-b16507eadeba/bin/uautomizer/data/2a7fd4f7a/ce3f1ea8e421402b9863e638c95ec6b1/FLAGd701167a9 [2020-11-30 00:10:52,939 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d57e1c8d-3a7f-4642-8aae-b16507eadeba/bin/uautomizer/data/2a7fd4f7a/ce3f1ea8e421402b9863e638c95ec6b1 [2020-11-30 00:10:52,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:10:52,944 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:10:52,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:10:52,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:10:52,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:10:52,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:10:52" (1/1) ... [2020-11-30 00:10:52,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1866410a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:52, skipping insertion in model container [2020-11-30 00:10:52,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:10:52" (1/1) ... [2020-11-30 00:10:52,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:10:52,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:10:53,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:10:53,127 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:10:53,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:10:53,157 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:10:53,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53 WrapperNode [2020-11-30 00:10:53,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:10:53,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:10:53,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:10:53,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:10:53,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53" (1/1) ... [2020-11-30 00:10:53,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53" (1/1) ... [2020-11-30 00:10:53,205 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:10:53,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:10:53,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:10:53,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:10:53,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53" (1/1) ... [2020-11-30 00:10:53,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53" (1/1) ... [2020-11-30 00:10:53,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53" (1/1) ... [2020-11-30 00:10:53,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53" (1/1) ... [2020-11-30 00:10:53,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53" (1/1) ... [2020-11-30 00:10:53,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53" (1/1) ... [2020-11-30 00:10:53,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53" (1/1) ... [2020-11-30 00:10:53,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:10:53,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:10:53,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:10:53,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:10:53,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d57e1c8d-3a7f-4642-8aae-b16507eadeba/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 [2020-11-30 00:10:53,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:10:53,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:10:53,660 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:10:53,661 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 00:10:53,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:10:53 BoogieIcfgContainer [2020-11-30 00:10:53,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:10:53,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:10:53,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:10:53,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:10:53,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:10:52" (1/3) ... [2020-11-30 00:10:53,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2698af7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:10:53, skipping insertion in model container [2020-11-30 00:10:53,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:53" (2/3) ... [2020-11-30 00:10:53,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2698af7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:10:53, skipping insertion in model container [2020-11-30 00:10:53,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:10:53" (3/3) ... [2020-11-30 00:10:53,678 INFO L111 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7a.c [2020-11-30 00:10:53,690 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:10:53,696 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-11-30 00:10:53,708 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-30 00:10:53,732 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:10:53,732 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:10:53,732 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:10:53,733 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:10:53,733 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:10:53,733 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:10:53,733 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:10:53,733 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:10:53,746 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-11-30 00:10:53,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 00:10:53,750 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:10:53,751 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 00:10:53,752 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 00:10:53,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:53,758 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2020-11-30 00:10:53,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:53,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197698352] [2020-11-30 00:10:53,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:53,983 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 00:10:53,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197698352] [2020-11-30 00:10:53,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:10:53,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 00:10:53,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610627033] [2020-11-30 00:10:53,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:10:53,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:10:54,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:10:54,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:10:54,016 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2020-11-30 00:10:54,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:10:54,102 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2020-11-30 00:10:54,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:10:54,105 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-30 00:10:54,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:10:54,115 INFO L225 Difference]: With dead ends: 23 [2020-11-30 00:10:54,115 INFO L226 Difference]: Without dead ends: 14 [2020-11-30 00:10:54,120 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 00:10:54,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-11-30 00:10:54,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-11-30 00:10:54,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-11-30 00:10:54,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2020-11-30 00:10:54,167 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 4 [2020-11-30 00:10:54,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:10:54,168 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2020-11-30 00:10:54,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:10:54,168 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2020-11-30 00:10:54,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 00:10:54,169 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:10:54,170 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 00:10:54,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:10:54,171 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 00:10:54,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:54,176 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2020-11-30 00:10:54,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:54,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558769569] [2020-11-30 00:10:54,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:54,236 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 00:10:54,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558769569] [2020-11-30 00:10:54,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:10:54,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 00:10:54,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196313294] [2020-11-30 00:10:54,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:10:54,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:10:54,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:10:54,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:10:54,241 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 3 states. [2020-11-30 00:10:54,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:10:54,259 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2020-11-30 00:10:54,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:10:54,260 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-30 00:10:54,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:10:54,260 INFO L225 Difference]: With dead ends: 14 [2020-11-30 00:10:54,261 INFO L226 Difference]: Without dead ends: 13 [2020-11-30 00:10:54,262 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 00:10:54,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-30 00:10:54,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-30 00:10:54,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-30 00:10:54,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2020-11-30 00:10:54,266 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 4 [2020-11-30 00:10:54,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:10:54,266 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2020-11-30 00:10:54,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:10:54,268 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2020-11-30 00:10:54,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 00:10:54,268 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:10:54,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 00:10:54,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:10:54,269 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 00:10:54,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:54,270 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2020-11-30 00:10:54,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:54,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689128967] [2020-11-30 00:10:54,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:54,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:54,299 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 00:10:54,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689128967] [2020-11-30 00:10:54,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:10:54,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:10:54,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309810974] [2020-11-30 00:10:54,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:10:54,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:10:54,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:10:54,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:10:54,303 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 3 states. [2020-11-30 00:10:54,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:10:54,324 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2020-11-30 00:10:54,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:10:54,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-30 00:10:54,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:10:54,326 INFO L225 Difference]: With dead ends: 14 [2020-11-30 00:10:54,326 INFO L226 Difference]: Without dead ends: 13 [2020-11-30 00:10:54,327 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 00:10:54,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-30 00:10:54,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2020-11-30 00:10:54,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-30 00:10:54,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2020-11-30 00:10:54,331 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 5 [2020-11-30 00:10:54,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:10:54,331 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2020-11-30 00:10:54,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:10:54,332 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-11-30 00:10:54,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 00:10:54,332 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:10:54,332 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 00:10:54,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 00:10:54,334 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 00:10:54,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:54,335 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2020-11-30 00:10:54,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:54,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937526386] [2020-11-30 00:10:54,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:54,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:54,372 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 00:10:54,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937526386] [2020-11-30 00:10:54,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:10:54,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:10:54,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559181422] [2020-11-30 00:10:54,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:10:54,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:10:54,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:10:54,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:10:54,376 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 3 states. [2020-11-30 00:10:54,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:10:54,390 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2020-11-30 00:10:54,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:10:54,391 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-30 00:10:54,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:10:54,392 INFO L225 Difference]: With dead ends: 12 [2020-11-30 00:10:54,392 INFO L226 Difference]: Without dead ends: 11 [2020-11-30 00:10:54,392 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 00:10:54,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-11-30 00:10:54,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-30 00:10:54,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-30 00:10:54,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2020-11-30 00:10:54,396 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 5 [2020-11-30 00:10:54,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:10:54,396 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2020-11-30 00:10:54,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:10:54,396 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2020-11-30 00:10:54,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 00:10:54,397 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:10:54,398 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:10:54,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 00:10:54,398 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 00:10:54,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:54,399 INFO L82 PathProgramCache]: Analyzing trace with hash 925954989, now seen corresponding path program 1 times [2020-11-30 00:10:54,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:54,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178005262] [2020-11-30 00:10:54,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:54,498 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 00:10:54,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178005262] [2020-11-30 00:10:54,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:10:54,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 00:10:54,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808478312] [2020-11-30 00:10:54,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:10:54,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:10:54,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:10:54,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:10:54,501 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 3 states. [2020-11-30 00:10:54,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:10:54,531 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2020-11-30 00:10:54,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:10:54,532 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-30 00:10:54,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:10:54,532 INFO L225 Difference]: With dead ends: 11 [2020-11-30 00:10:54,532 INFO L226 Difference]: Without dead ends: 10 [2020-11-30 00:10:54,533 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 00:10:54,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-11-30 00:10:54,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-11-30 00:10:54,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-30 00:10:54,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2020-11-30 00:10:54,536 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2020-11-30 00:10:54,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:10:54,536 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2020-11-30 00:10:54,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:10:54,537 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2020-11-30 00:10:54,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 00:10:54,537 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:10:54,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:10:54,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 00:10:54,538 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 00:10:54,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:54,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1360166356, now seen corresponding path program 1 times [2020-11-30 00:10:54,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:54,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972408566] [2020-11-30 00:10:54,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:54,583 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 00:10:54,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972408566] [2020-11-30 00:10:54,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:10:54,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:10:54,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903628029] [2020-11-30 00:10:54,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:10:54,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:10:54,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:10:54,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:10:54,586 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2020-11-30 00:10:54,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:10:54,636 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2020-11-30 00:10:54,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:10:54,638 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-30 00:10:54,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:10:54,638 INFO L225 Difference]: With dead ends: 10 [2020-11-30 00:10:54,638 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:10:54,639 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 00:10:54,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:10:54,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:10:54,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:10:54,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:10:54,640 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-11-30 00:10:54,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:10:54,640 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:10:54,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:10:54,640 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:10:54,641 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:10:54,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 00:10:54,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:10:54,697 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2020-11-30 00:10:54,697 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:10:54,697 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2020-11-30 00:10:54,697 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2020-11-30 00:10:54,697 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-11-30 00:10:54,698 INFO L274 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-11-30 00:10:54,698 INFO L274 CegarLoopResult]: For program point L21(lines 21 28) no Hoare annotation was computed. [2020-11-30 00:10:54,698 INFO L270 CegarLoopResult]: At program point L21-2(lines 20 29) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~d~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2020-11-30 00:10:54,698 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2020-11-30 00:10:54,698 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2020-11-30 00:10:54,699 INFO L270 CegarLoopResult]: At program point L30(lines 15 31) the Hoare annotation is: (<= ULTIMATE.start_main_~y~0 2147483647) [2020-11-30 00:10:54,699 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:10:54,699 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2020-11-30 00:10:54,699 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:10:54,699 INFO L274 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-11-30 00:10:54,699 INFO L274 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-11-30 00:10:54,699 INFO L274 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-11-30 00:10:54,699 INFO L274 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-11-30 00:10:54,699 INFO L274 CegarLoopResult]: For program point L20-2(lines 20 29) no Hoare annotation was computed. [2020-11-30 00:10:54,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:10:54 BoogieIcfgContainer [2020-11-30 00:10:54,718 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:10:54,719 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:10:54,719 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:10:54,719 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:10:54,719 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:10:53" (3/4) ... [2020-11-30 00:10:54,723 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:10:54,733 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-30 00:10:54,733 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-30 00:10:54,773 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d57e1c8d-3a7f-4642-8aae-b16507eadeba/bin/uautomizer/witness.graphml [2020-11-30 00:10:54,774 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:10:54,775 INFO L168 Benchmark]: Toolchain (without parser) took 1830.67 ms. Allocated memory is still 102.8 MB. Free memory was 69.5 MB in the beginning and 67.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:10:54,776 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 73.4 MB. Free memory was 48.9 MB in the beginning and 48.9 MB in the end (delta: 25.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:10:54,777 INFO L168 Benchmark]: CACSL2BoogieTranslator took 207.34 ms. Allocated memory is still 102.8 MB. Free memory was 69.4 MB in the beginning and 81.2 MB in the end (delta: -11.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:10:54,777 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.14 ms. Allocated memory is still 102.8 MB. Free memory was 81.2 MB in the beginning and 79.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:10:54,778 INFO L168 Benchmark]: Boogie Preprocessor took 19.49 ms. Allocated memory is still 102.8 MB. Free memory was 79.7 MB in the beginning and 79.0 MB in the end (delta: 694.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:10:54,778 INFO L168 Benchmark]: RCFGBuilder took 438.74 ms. Allocated memory is still 102.8 MB. Free memory was 79.0 MB in the beginning and 69.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:10:54,779 INFO L168 Benchmark]: TraceAbstraction took 1050.29 ms. Allocated memory is still 102.8 MB. Free memory was 68.6 MB in the beginning and 70.1 MB in the end (delta: -1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:10:54,779 INFO L168 Benchmark]: Witness Printer took 55.10 ms. Allocated memory is still 102.8 MB. Free memory was 70.1 MB in the beginning and 67.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:10:54,790 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 73.4 MB. Free memory was 48.9 MB in the beginning and 48.9 MB in the end (delta: 25.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 207.34 ms. Allocated memory is still 102.8 MB. Free memory was 69.4 MB in the beginning and 81.2 MB in the end (delta: -11.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.14 ms. Allocated memory is still 102.8 MB. Free memory was 81.2 MB in the beginning and 79.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.49 ms. Allocated memory is still 102.8 MB. Free memory was 79.7 MB in the beginning and 79.0 MB in the end (delta: 694.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 438.74 ms. Allocated memory is still 102.8 MB. Free memory was 79.0 MB in the beginning and 69.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1050.29 ms. Allocated memory is still 102.8 MB. Free memory was 68.6 MB in the beginning and 70.1 MB in the end (delta: -1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 55.10 ms. Allocated memory is still 102.8 MB. Free memory was 70.1 MB in the beginning and 67.9 MB in the end (delta: 2.2 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: 26]: 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: 26]: 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 && d <= 2147483647) && y <= 2147483647 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 60 SDtfs, 34 SDslu, 10 SDs, 0 SdLazy, 28 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=19occurred 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 13 HoareAnnotationTreeSize, 2 FomulaSimplifications, 12 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 305 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...