./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted/Nyala-2lex_true-no-overflow_true-termination_true-valid-memsafety.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/Nyala-2lex_true-no-overflow_true-termination_true-valid-memsafety.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 054e86c0b11592f66f6efc3e0f84c6f8bee49b59 .............................................................................................................................................................................................................................................................................................................................................................................. 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 01:17:09,934 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 01:17:09,936 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 01:17:09,947 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 01:17:09,948 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 01:17:09,949 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 01:17:09,951 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 01:17:09,953 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 01:17:09,954 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 01:17:09,955 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 01:17:09,956 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 01:17:09,957 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 01:17:09,958 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 01:17:09,959 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 01:17:09,960 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 01:17:09,961 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 01:17:09,962 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 01:17:09,964 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 01:17:09,967 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 01:17:09,969 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 01:17:09,970 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 01:17:09,971 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 01:17:09,974 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 01:17:09,974 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 01:17:09,974 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 01:17:09,976 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 01:17:09,977 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 01:17:09,978 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 01:17:09,979 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 01:17:09,980 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 01:17:09,980 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 01:17:09,981 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 01:17:09,981 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 01:17:09,981 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 01:17:09,983 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 01:17:09,983 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 01:17:09,984 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-14 01:17:09,999 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 01:17:09,999 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 01:17:10,000 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 01:17:10,001 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 01:17:10,001 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 01:17:10,001 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 01:17:10,001 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 01:17:10,001 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 01:17:10,002 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 01:17:10,002 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 01:17:10,002 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 01:17:10,002 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 01:17:10,002 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-14 01:17:10,002 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 01:17:10,004 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 01:17:10,004 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 01:17:10,004 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 01:17:10,004 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 01:17:10,005 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 01:17:10,005 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 01:17:10,005 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 01:17:10,005 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 01:17:10,005 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 01:17:10,005 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 01:17:10,007 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 01:17:10,007 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 01:17:10,007 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 01:17:10,007 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 -> 054e86c0b11592f66f6efc3e0f84c6f8bee49b59 [2019-01-14 01:17:10,058 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 01:17:10,073 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 01:17:10,080 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 01:17:10,081 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 01:17:10,082 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 01:17:10,082 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted/Nyala-2lex_true-no-overflow_true-termination_true-valid-memsafety.c [2019-01-14 01:17:10,154 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80166988f/de3394462a414d35860fcf5454496d6c/FLAGcaef31422 [2019-01-14 01:17:10,541 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 01:17:10,542 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted/Nyala-2lex_true-no-overflow_true-termination_true-valid-memsafety.c [2019-01-14 01:17:10,547 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80166988f/de3394462a414d35860fcf5454496d6c/FLAGcaef31422 [2019-01-14 01:17:10,938 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80166988f/de3394462a414d35860fcf5454496d6c [2019-01-14 01:17:10,942 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 01:17:10,943 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 01:17:10,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 01:17:10,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 01:17:10,948 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 01:17:10,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 01:17:10" (1/1) ... [2019-01-14 01:17:10,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1944673d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:10, skipping insertion in model container [2019-01-14 01:17:10,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 01:17:10" (1/1) ... [2019-01-14 01:17:10,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 01:17:10,979 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 01:17:11,166 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 01:17:11,172 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 01:17:11,190 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 01:17:11,205 INFO L195 MainTranslator]: Completed translation [2019-01-14 01:17:11,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:11 WrapperNode [2019-01-14 01:17:11,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 01:17:11,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 01:17:11,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 01:17:11,207 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 01:17:11,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:11" (1/1) ... [2019-01-14 01:17:11,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:11" (1/1) ... [2019-01-14 01:17:11,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 01:17:11,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 01:17:11,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 01:17:11,249 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 01:17:11,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:11" (1/1) ... [2019-01-14 01:17:11,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:11" (1/1) ... [2019-01-14 01:17:11,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:11" (1/1) ... [2019-01-14 01:17:11,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:11" (1/1) ... [2019-01-14 01:17:11,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:11" (1/1) ... [2019-01-14 01:17:11,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:11" (1/1) ... [2019-01-14 01:17:11,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:11" (1/1) ... [2019-01-14 01:17:11,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 01:17:11,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 01:17:11,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 01:17:11,276 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 01:17:11,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:11" (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 01:17:11,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 01:17:11,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 01:17:11,615 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 01:17:11,615 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-14 01:17:11,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:17:11 BoogieIcfgContainer [2019-01-14 01:17:11,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 01:17:11,618 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 01:17:11,618 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 01:17:11,630 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 01:17:11,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 01:17:10" (1/3) ... [2019-01-14 01:17:11,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a79cd47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 01:17:11, skipping insertion in model container [2019-01-14 01:17:11,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:17:11" (2/3) ... [2019-01-14 01:17:11,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a79cd47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 01:17:11, skipping insertion in model container [2019-01-14 01:17:11,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:17:11" (3/3) ... [2019-01-14 01:17:11,642 INFO L112 eAbstractionObserver]: Analyzing ICFG Nyala-2lex_true-no-overflow_true-termination_true-valid-memsafety.c [2019-01-14 01:17:11,671 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 01:17:11,693 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-01-14 01:17:11,731 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-01-14 01:17:11,761 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 01:17:11,762 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 01:17:11,762 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 01:17:11,763 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 01:17:11,763 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 01:17:11,763 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 01:17:11,763 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 01:17:11,763 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 01:17:11,763 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 01:17:11,781 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-01-14 01:17:11,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-14 01:17:11,787 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:17:11,788 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-14 01:17:11,792 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:17:11,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:17:11,805 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-01-14 01:17:11,810 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:17:11,811 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:17:11,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:11,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:17:11,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:17:11,960 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 01:17:11,962 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:17:11,963 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-14 01:17:11,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:17:11,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:17:11,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:17:11,987 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2019-01-14 01:17:12,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:17:12,036 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-01-14 01:17:12,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:17:12,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-01-14 01:17:12,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:17:12,047 INFO L225 Difference]: With dead ends: 19 [2019-01-14 01:17:12,047 INFO L226 Difference]: Without dead ends: 10 [2019-01-14 01:17:12,050 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 01:17:12,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-01-14 01:17:12,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-01-14 01:17:12,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-01-14 01:17:12,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-01-14 01:17:12,082 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 3 [2019-01-14 01:17:12,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:17:12,083 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-01-14 01:17:12,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:17:12,083 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-01-14 01:17:12,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-14 01:17:12,084 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:17:12,084 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-14 01:17:12,084 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:17:12,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:17:12,085 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-01-14 01:17:12,085 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:17:12,085 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:17:12,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:12,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:17:12,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:17:12,120 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 01:17:12,120 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:17:12,120 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 01:17:12,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:17:12,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:17:12,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:17:12,123 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2019-01-14 01:17:12,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:17:12,169 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2019-01-14 01:17:12,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:17:12,170 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-14 01:17:12,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:17:12,171 INFO L225 Difference]: With dead ends: 11 [2019-01-14 01:17:12,171 INFO L226 Difference]: Without dead ends: 10 [2019-01-14 01:17:12,172 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 01:17:12,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-01-14 01:17:12,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2019-01-14 01:17:12,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-01-14 01:17:12,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2019-01-14 01:17:12,177 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 4 [2019-01-14 01:17:12,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:17:12,177 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2019-01-14 01:17:12,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:17:12,178 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2019-01-14 01:17:12,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-14 01:17:12,178 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:17:12,178 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-14 01:17:12,179 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:17:12,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:17:12,181 INFO L82 PathProgramCache]: Analyzing trace with hash 925739533, now seen corresponding path program 1 times [2019-01-14 01:17:12,181 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:17:12,181 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:17:12,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:12,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:17:12,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:17:12,226 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 01:17:12,226 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:17:12,226 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-14 01:17:12,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:17:12,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:17:12,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:17:12,228 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 3 states. [2019-01-14 01:17:12,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:17:12,252 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2019-01-14 01:17:12,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:17:12,253 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-01-14 01:17:12,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:17:12,253 INFO L225 Difference]: With dead ends: 9 [2019-01-14 01:17:12,253 INFO L226 Difference]: Without dead ends: 8 [2019-01-14 01:17:12,254 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 01:17:12,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-01-14 01:17:12,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-01-14 01:17:12,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-01-14 01:17:12,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2019-01-14 01:17:12,257 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2019-01-14 01:17:12,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:17:12,257 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2019-01-14 01:17:12,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:17:12,258 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2019-01-14 01:17:12,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-14 01:17:12,258 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:17:12,258 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 01:17:12,259 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:17:12,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:17:12,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1366845498, now seen corresponding path program 1 times [2019-01-14 01:17:12,259 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:17:12,259 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:17:12,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:12,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:17:12,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:17:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:17:12,304 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 01:17:12,304 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:17:12,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 01:17:12,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:17:12,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:17:12,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:17:12,305 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 3 states. [2019-01-14 01:17:12,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:17:12,337 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2019-01-14 01:17:12,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:17:12,337 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-01-14 01:17:12,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:17:12,337 INFO L225 Difference]: With dead ends: 9 [2019-01-14 01:17:12,338 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 01:17:12,338 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 01:17:12,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 01:17:12,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 01:17:12,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 01:17:12,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 01:17:12,339 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-01-14 01:17:12,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:17:12,339 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 01:17:12,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:17:12,339 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 01:17:12,340 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 01:17:12,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-14 01:17:12,405 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-14 01:17:12,405 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 24) no Hoare annotation was computed. [2019-01-14 01:17:12,406 INFO L444 ceAbstractionStarter]: At program point L21-2(lines 19 25) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2019-01-14 01:17:12,406 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-01-14 01:17:12,406 INFO L448 ceAbstractionStarter]: For program point L19-2(lines 19 25) no Hoare annotation was computed. [2019-01-14 01:17:12,406 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-01-14 01:17:12,406 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-14 01:17:12,407 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-14 01:17:12,407 INFO L444 ceAbstractionStarter]: At program point L26(lines 15 27) the Hoare annotation is: (<= ULTIMATE.start_main_~y~0 2147483647) [2019-01-14 01:17:12,407 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-01-14 01:17:12,407 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-01-14 01:17:12,407 INFO L448 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-01-14 01:17:12,407 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2019-01-14 01:17:12,407 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-01-14 01:17:12,407 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-01-14 01:17:12,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 01:17:12 BoogieIcfgContainer [2019-01-14 01:17:12,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 01:17:12,421 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 01:17:12,421 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 01:17:12,422 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 01:17:12,422 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:17:11" (3/4) ... [2019-01-14 01:17:12,426 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 01:17:12,437 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-14 01:17:12,438 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-14 01:17:12,489 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 01:17:12,489 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 01:17:12,490 INFO L168 Benchmark]: Toolchain (without parser) took 1548.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -123.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2019-01-14 01:17:12,492 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:17:12,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.57 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 01:17:12,494 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.94 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:17:12,494 INFO L168 Benchmark]: Boogie Preprocessor took 26.90 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:17:12,495 INFO L168 Benchmark]: RCFGBuilder took 341.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -167.4 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-01-14 01:17:12,495 INFO L168 Benchmark]: TraceAbstraction took 802.56 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2019-01-14 01:17:12,496 INFO L168 Benchmark]: Witness Printer took 68.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:17:12,500 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 261.57 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 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 41.94 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.90 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 341.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -167.4 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 802.56 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 68.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: y <= 2147483647 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. SAFE Result, 0.6s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 27 SDtfs, 15 SDslu, 3 SDs, 0 SdLazy, 23 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 27 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...