./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/Urban-WST2013-Fig2_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/termination-crafted-lit/Urban-WST2013-Fig2_true-termination_true-no-overflow.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 31d0c4253184c01eb9f9573658b07bed7aa94585 ............................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 01:32:44,959 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 01:32:44,961 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 01:32:44,973 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 01:32:44,974 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 01:32:44,975 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 01:32:44,976 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 01:32:44,979 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 01:32:44,981 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 01:32:44,982 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 01:32:44,983 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 01:32:44,983 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 01:32:44,984 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 01:32:44,986 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 01:32:44,987 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 01:32:44,988 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 01:32:44,989 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 01:32:44,991 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 01:32:44,993 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 01:32:44,995 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 01:32:44,996 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 01:32:44,998 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 01:32:45,001 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 01:32:45,001 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 01:32:45,001 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 01:32:45,003 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 01:32:45,004 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 01:32:45,005 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 01:32:45,006 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 01:32:45,007 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 01:32:45,007 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 01:32:45,008 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 01:32:45,008 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 01:32:45,009 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 01:32:45,010 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 01:32:45,011 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 01:32:45,011 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-14 01:32:45,027 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 01:32:45,027 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 01:32:45,029 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 01:32:45,029 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 01:32:45,029 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 01:32:45,029 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 01:32:45,029 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 01:32:45,030 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 01:32:45,030 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 01:32:45,030 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 01:32:45,030 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 01:32:45,030 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 01:32:45,030 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-14 01:32:45,031 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 01:32:45,032 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 01:32:45,032 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 01:32:45,032 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 01:32:45,033 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 01:32:45,033 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 01:32:45,033 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 01:32:45,033 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 01:32:45,033 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 01:32:45,033 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 01:32:45,034 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 01:32:45,034 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 01:32:45,034 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 01:32:45,034 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 01:32:45,034 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 31d0c4253184c01eb9f9573658b07bed7aa94585 [2019-01-14 01:32:45,070 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 01:32:45,084 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 01:32:45,091 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 01:32:45,093 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 01:32:45,093 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 01:32:45,094 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/Urban-WST2013-Fig2_true-termination_true-no-overflow.c [2019-01-14 01:32:45,155 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdad79e3d/2ca6d92e907b4de0b293640b936c5b25/FLAGef95608ea [2019-01-14 01:32:45,568 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 01:32:45,569 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/Urban-WST2013-Fig2_true-termination_true-no-overflow.c [2019-01-14 01:32:45,575 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdad79e3d/2ca6d92e907b4de0b293640b936c5b25/FLAGef95608ea [2019-01-14 01:32:45,976 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdad79e3d/2ca6d92e907b4de0b293640b936c5b25 [2019-01-14 01:32:45,980 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 01:32:45,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 01:32:45,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 01:32:45,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 01:32:45,988 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 01:32:45,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 01:32:45" (1/1) ... [2019-01-14 01:32:45,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f9a6a0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:32:45, skipping insertion in model container [2019-01-14 01:32:45,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 01:32:45" (1/1) ... [2019-01-14 01:32:46,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 01:32:46,017 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 01:32:46,245 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 01:32:46,249 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 01:32:46,270 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 01:32:46,286 INFO L195 MainTranslator]: Completed translation [2019-01-14 01:32:46,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:32:46 WrapperNode [2019-01-14 01:32:46,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 01:32:46,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 01:32:46,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 01:32:46,288 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 01:32:46,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:32:46" (1/1) ... [2019-01-14 01:32:46,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:32:46" (1/1) ... [2019-01-14 01:32:46,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 01:32:46,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 01:32:46,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 01:32:46,330 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 01:32:46,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:32:46" (1/1) ... [2019-01-14 01:32:46,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:32:46" (1/1) ... [2019-01-14 01:32:46,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:32:46" (1/1) ... [2019-01-14 01:32:46,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:32:46" (1/1) ... [2019-01-14 01:32:46,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:32:46" (1/1) ... [2019-01-14 01:32:46,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:32:46" (1/1) ... [2019-01-14 01:32:46,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:32:46" (1/1) ... [2019-01-14 01:32:46,353 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 01:32:46,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 01:32:46,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 01:32:46,353 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 01:32:46,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:32:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-14 01:32:46,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 01:32:46,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 01:32:46,780 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 01:32:46,781 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-14 01:32:46,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:32:46 BoogieIcfgContainer [2019-01-14 01:32:46,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 01:32:46,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 01:32:46,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 01:32:46,788 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 01:32:46,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 01:32:45" (1/3) ... [2019-01-14 01:32:46,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af89526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 01:32:46, skipping insertion in model container [2019-01-14 01:32:46,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:32:46" (2/3) ... [2019-01-14 01:32:46,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af89526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 01:32:46, skipping insertion in model container [2019-01-14 01:32:46,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:32:46" (3/3) ... [2019-01-14 01:32:46,792 INFO L112 eAbstractionObserver]: Analyzing ICFG Urban-WST2013-Fig2_true-termination_true-no-overflow.c [2019-01-14 01:32:46,802 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 01:32:46,812 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-01-14 01:32:46,830 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-01-14 01:32:46,871 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 01:32:46,872 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 01:32:46,872 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 01:32:46,873 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 01:32:46,873 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 01:32:46,873 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 01:32:46,873 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 01:32:46,873 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 01:32:46,873 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 01:32:46,904 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-01-14 01:32:46,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-14 01:32:46,921 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:32:46,922 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-14 01:32:46,926 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:32:46,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:32:46,941 INFO L82 PathProgramCache]: Analyzing trace with hash 963476, now seen corresponding path program 1 times [2019-01-14 01:32:46,943 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:32:46,943 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:32:47,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:32:47,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:32:47,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:32:47,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:32:47,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 01:32:47,138 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:32:47,138 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 01:32:47,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:32:47,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:32:47,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:32:47,156 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2019-01-14 01:32:47,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:32:47,221 INFO L93 Difference]: Finished difference Result 32 states and 42 transitions. [2019-01-14 01:32:47,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:32:47,222 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-14 01:32:47,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:32:47,231 INFO L225 Difference]: With dead ends: 32 [2019-01-14 01:32:47,231 INFO L226 Difference]: Without dead ends: 14 [2019-01-14 01:32:47,235 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:32:47,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-01-14 01:32:47,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-01-14 01:32:47,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-01-14 01:32:47,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-01-14 01:32:47,269 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 4 [2019-01-14 01:32:47,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:32:47,269 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-01-14 01:32:47,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:32:47,270 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-01-14 01:32:47,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-14 01:32:47,270 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:32:47,270 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-14 01:32:47,271 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:32:47,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:32:47,271 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2019-01-14 01:32:47,272 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:32:47,272 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:32:47,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:32:47,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:32:47,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:32:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:32:47,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 01:32:47,314 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:32:47,314 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 01:32:47,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:32:47,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:32:47,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:32:47,317 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 3 states. [2019-01-14 01:32:47,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:32:47,369 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2019-01-14 01:32:47,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:32:47,371 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-14 01:32:47,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:32:47,372 INFO L225 Difference]: With dead ends: 15 [2019-01-14 01:32:47,372 INFO L226 Difference]: Without dead ends: 14 [2019-01-14 01:32:47,373 INFO L631 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 [2019-01-14 01:32:47,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-01-14 01:32:47,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-01-14 01:32:47,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-01-14 01:32:47,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2019-01-14 01:32:47,378 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 4 [2019-01-14 01:32:47,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:32:47,378 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2019-01-14 01:32:47,378 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:32:47,378 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2019-01-14 01:32:47,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-14 01:32:47,379 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:32:47,379 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 01:32:47,379 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:32:47,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:32:47,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1360166603, now seen corresponding path program 1 times [2019-01-14 01:32:47,381 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:32:47,382 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:32:47,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:32:47,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:32:47,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:32:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:32:47,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 01:32:47,443 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 01:32:47,443 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-14 01:32:47,455 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:32:47,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:32:47,478 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 01:32:47,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-14 01:32:47,512 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-14 01:32:47,513 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2019-01-14 01:32:47,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-14 01:32:47,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-14 01:32:47,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-14 01:32:47,514 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 5 states. [2019-01-14 01:32:47,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:32:47,747 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2019-01-14 01:32:47,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-14 01:32:47,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-01-14 01:32:47,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:32:47,748 INFO L225 Difference]: With dead ends: 27 [2019-01-14 01:32:47,749 INFO L226 Difference]: Without dead ends: 15 [2019-01-14 01:32:47,750 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-01-14 01:32:47,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-01-14 01:32:47,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-01-14 01:32:47,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-01-14 01:32:47,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-01-14 01:32:47,754 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 7 [2019-01-14 01:32:47,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:32:47,755 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-01-14 01:32:47,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-14 01:32:47,756 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-01-14 01:32:47,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-14 01:32:47,756 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:32:47,756 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2019-01-14 01:32:47,757 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:32:47,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:32:47,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1873823032, now seen corresponding path program 1 times [2019-01-14 01:32:47,757 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:32:47,757 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:32:47,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:32:47,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:32:47,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:32:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:32:47,842 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-01-14 01:32:47,843 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:32:47,843 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-14 01:32:47,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:32:47,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:32:47,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:32:47,844 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 3 states. [2019-01-14 01:32:47,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:32:47,901 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2019-01-14 01:32:47,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:32:47,902 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-01-14 01:32:47,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:32:47,903 INFO L225 Difference]: With dead ends: 15 [2019-01-14 01:32:47,903 INFO L226 Difference]: Without dead ends: 14 [2019-01-14 01:32:47,904 INFO L631 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 [2019-01-14 01:32:47,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-01-14 01:32:47,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-01-14 01:32:47,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-01-14 01:32:47,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-01-14 01:32:47,909 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2019-01-14 01:32:47,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:32:47,909 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-01-14 01:32:47,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:32:47,910 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-01-14 01:32:47,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-14 01:32:47,910 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:32:47,910 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1] [2019-01-14 01:32:47,912 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:32:47,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:32:47,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1873821334, now seen corresponding path program 1 times [2019-01-14 01:32:47,913 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:32:47,913 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:32:47,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:32:47,915 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:32:47,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:32:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:32:47,972 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-01-14 01:32:47,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:32:47,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 01:32:47,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:32:47,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:32:47,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:32:47,973 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 3 states. [2019-01-14 01:32:48,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:32:48,039 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2019-01-14 01:32:48,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:32:48,040 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-01-14 01:32:48,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:32:48,041 INFO L225 Difference]: With dead ends: 14 [2019-01-14 01:32:48,041 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 01:32:48,041 INFO L631 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 [2019-01-14 01:32:48,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 01:32:48,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 01:32:48,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 01:32:48,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 01:32:48,045 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-01-14 01:32:48,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:32:48,045 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 01:32:48,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:32:48,045 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 01:32:48,045 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 01:32:48,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-14 01:32:48,129 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-14 01:32:48,129 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-01-14 01:32:48,129 INFO L444 ceAbstractionStarter]: At program point L21-2(lines 21 23) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x1~0 10) (<= 0 (+ ULTIMATE.start_main_~x1~0 2147483648)) (<= ULTIMATE.start_main_~x2~0 10)) [2019-01-14 01:32:48,129 INFO L448 ceAbstractionStarter]: For program point L21-3(lines 21 23) no Hoare annotation was computed. [2019-01-14 01:32:48,130 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 25) the Hoare annotation is: (<= 0 (+ ULTIMATE.start_main_~x1~0 2147483648)) [2019-01-14 01:32:48,130 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 19 25) no Hoare annotation was computed. [2019-01-14 01:32:48,130 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-01-14 01:32:48,130 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-14 01:32:48,130 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-14 01:32:48,130 INFO L451 ceAbstractionStarter]: At program point L26(lines 14 27) the Hoare annotation is: true [2019-01-14 01:32:48,130 INFO L448 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2019-01-14 01:32:48,131 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-01-14 01:32:48,131 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-01-14 01:32:48,131 INFO L448 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-01-14 01:32:48,131 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-01-14 01:32:48,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 01:32:48 BoogieIcfgContainer [2019-01-14 01:32:48,145 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 01:32:48,145 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 01:32:48,145 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 01:32:48,146 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 01:32:48,146 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:32:46" (3/4) ... [2019-01-14 01:32:48,150 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 01:32:48,161 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-14 01:32:48,162 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-14 01:32:48,211 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 01:32:48,212 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 01:32:48,213 INFO L168 Benchmark]: Toolchain (without parser) took 2231.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -103.5 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2019-01-14 01:32:48,215 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:32:48,215 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.69 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 01:32:48,216 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.81 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:32:48,216 INFO L168 Benchmark]: Boogie Preprocessor took 23.00 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:32:48,217 INFO L168 Benchmark]: RCFGBuilder took 429.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -173.5 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2019-01-14 01:32:48,217 INFO L168 Benchmark]: TraceAbstraction took 1361.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 52.6 MB). Peak memory consumption was 52.6 MB. Max. memory is 11.5 GB. [2019-01-14 01:32:48,218 INFO L168 Benchmark]: Witness Printer took 66.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-01-14 01:32:48,222 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 303.69 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.81 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.00 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 429.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -173.5 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1361.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 52.6 MB). Peak memory consumption was 52.6 MB. Max. memory is 11.5 GB. * Witness Printer took 66.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 <= x1 + 2147483648 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (x1 <= 10 && 0 <= x1 + 2147483648) && x2 <= 10 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. SAFE Result, 1.2s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 34 SDtfs, 18 SDslu, 10 SDs, 0 SdLazy, 51 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s 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 AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 18 HoareAnnotationTreeSize, 3 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 856 SizeOfPredicates, 0 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 15/16 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...