./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/Urban-WST2013-Fig1_false-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2e94e6aa 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-Fig1_false-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 bbffee41c5a3e36a7439f4e96877154fc3cf2a16 .............................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 20:50:01,561 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 20:50:01,563 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 20:50:01,576 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 20:50:01,576 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 20:50:01,578 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 20:50:01,579 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 20:50:01,584 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 20:50:01,586 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 20:50:01,587 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 20:50:01,588 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 20:50:01,588 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 20:50:01,589 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 20:50:01,590 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 20:50:01,591 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 20:50:01,592 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 20:50:01,593 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 20:50:01,595 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 20:50:01,597 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 20:50:01,598 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 20:50:01,599 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 20:50:01,600 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 20:50:01,603 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 20:50:01,603 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 20:50:01,603 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 20:50:01,604 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 20:50:01,605 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 20:50:01,607 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 20:50:01,608 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 20:50:01,609 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 20:50:01,609 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 20:50:01,610 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 20:50:01,610 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 20:50:01,610 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 20:50:01,611 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 20:50:01,612 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 20:50:01,612 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-01 20:50:01,628 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 20:50:01,629 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 20:50:01,630 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 20:50:01,630 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 20:50:01,630 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 20:50:01,630 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 20:50:01,631 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 20:50:01,631 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 20:50:01,631 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 20:50:01,631 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 20:50:01,631 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 20:50:01,632 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 20:50:01,632 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-01 20:50:01,632 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 20:50:01,632 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 20:50:01,632 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 20:50:01,632 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 20:50:01,633 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 20:50:01,633 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 20:50:01,633 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 20:50:01,633 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 20:50:01,633 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 20:50:01,634 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 20:50:01,634 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 20:50:01,634 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 20:50:01,634 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 20:50:01,634 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 20:50:01,634 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 -> bbffee41c5a3e36a7439f4e96877154fc3cf2a16 [2019-01-01 20:50:01,692 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 20:50:01,714 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 20:50:01,721 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 20:50:01,723 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 20:50:01,723 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 20:50:01,724 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/Urban-WST2013-Fig1_false-termination_true-no-overflow.c [2019-01-01 20:50:01,793 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0c7401dd/b496bcb94e594f85a70449dc6fd385d8/FLAGf86a6ad8d [2019-01-01 20:50:02,223 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 20:50:02,224 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/Urban-WST2013-Fig1_false-termination_true-no-overflow.c [2019-01-01 20:50:02,231 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0c7401dd/b496bcb94e594f85a70449dc6fd385d8/FLAGf86a6ad8d [2019-01-01 20:50:02,571 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0c7401dd/b496bcb94e594f85a70449dc6fd385d8 [2019-01-01 20:50:02,575 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 20:50:02,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 20:50:02,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 20:50:02,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 20:50:02,581 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 20:50:02,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:50:02" (1/1) ... [2019-01-01 20:50:02,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cc38887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:02, skipping insertion in model container [2019-01-01 20:50:02,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:50:02" (1/1) ... [2019-01-01 20:50:02,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 20:50:02,613 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 20:50:02,786 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:50:02,790 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 20:50:02,807 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:50:02,823 INFO L195 MainTranslator]: Completed translation [2019-01-01 20:50:02,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:02 WrapperNode [2019-01-01 20:50:02,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 20:50:02,825 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 20:50:02,825 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 20:50:02,825 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 20:50:02,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:02" (1/1) ... [2019-01-01 20:50:02,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:02" (1/1) ... [2019-01-01 20:50:02,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 20:50:02,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 20:50:02,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 20:50:02,860 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 20:50:02,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:02" (1/1) ... [2019-01-01 20:50:02,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:02" (1/1) ... [2019-01-01 20:50:02,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:02" (1/1) ... [2019-01-01 20:50:02,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:02" (1/1) ... [2019-01-01 20:50:02,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:02" (1/1) ... [2019-01-01 20:50:02,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:02" (1/1) ... [2019-01-01 20:50:02,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:02" (1/1) ... [2019-01-01 20:50:02,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 20:50:02,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 20:50:02,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 20:50:02,883 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 20:50:02,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:02" (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 [2019-01-01 20:50:03,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 20:50:03,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 20:50:03,212 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 20:50:03,212 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-01 20:50:03,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:50:03 BoogieIcfgContainer [2019-01-01 20:50:03,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 20:50:03,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 20:50:03,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 20:50:03,217 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 20:50:03,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 08:50:02" (1/3) ... [2019-01-01 20:50:03,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ecf54eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:50:03, skipping insertion in model container [2019-01-01 20:50:03,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:02" (2/3) ... [2019-01-01 20:50:03,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ecf54eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:50:03, skipping insertion in model container [2019-01-01 20:50:03,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:50:03" (3/3) ... [2019-01-01 20:50:03,221 INFO L112 eAbstractionObserver]: Analyzing ICFG Urban-WST2013-Fig1_false-termination_true-no-overflow.c [2019-01-01 20:50:03,230 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 20:50:03,238 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-01-01 20:50:03,254 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-01-01 20:50:03,292 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 20:50:03,292 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 20:50:03,293 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 20:50:03,293 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 20:50:03,293 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 20:50:03,293 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 20:50:03,293 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 20:50:03,293 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 20:50:03,293 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 20:50:03,311 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-01-01 20:50:03,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-01 20:50:03,322 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:50:03,323 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-01 20:50:03,328 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:50:03,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:50:03,334 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2019-01-01 20:50:03,336 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:50:03,337 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:50:03,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:50:03,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:50:03,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:50:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:50:03,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 20:50:03,491 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:50:03,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 20:50:03,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-01 20:50:03,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 20:50:03,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:50:03,511 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2019-01-01 20:50:03,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:50:03,666 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2019-01-01 20:50:03,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 20:50:03,668 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-01 20:50:03,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:50:03,680 INFO L225 Difference]: With dead ends: 16 [2019-01-01 20:50:03,680 INFO L226 Difference]: Without dead ends: 7 [2019-01-01 20:50:03,684 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 [2019-01-01 20:50:03,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-01-01 20:50:03,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2019-01-01 20:50:03,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-01-01 20:50:03,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2019-01-01 20:50:03,722 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 7 transitions. Word has length 4 [2019-01-01 20:50:03,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:50:03,723 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 7 transitions. [2019-01-01 20:50:03,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-01 20:50:03,723 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2019-01-01 20:50:03,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-01 20:50:03,724 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:50:03,724 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-01 20:50:03,725 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:50:03,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:50:03,726 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2019-01-01 20:50:03,726 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:50:03,726 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:50:03,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:50:03,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:50:03,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:50:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:50:03,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 20:50:03,766 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:50:03,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 20:50:03,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-01 20:50:03,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 20:50:03,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:50:03,768 INFO L87 Difference]: Start difference. First operand 6 states and 7 transitions. Second operand 3 states. [2019-01-01 20:50:03,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:50:03,869 INFO L93 Difference]: Finished difference Result 12 states and 16 transitions. [2019-01-01 20:50:03,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 20:50:03,870 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-01-01 20:50:03,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:50:03,871 INFO L225 Difference]: With dead ends: 12 [2019-01-01 20:50:03,871 INFO L226 Difference]: Without dead ends: 0 [2019-01-01 20:50:03,872 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 [2019-01-01 20:50:03,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-01 20:50:03,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-01 20:50:03,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-01 20:50:03,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 20:50:03,873 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-01-01 20:50:03,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:50:03,873 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 20:50:03,873 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-01 20:50:03,873 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-01 20:50:03,873 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-01 20:50:03,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-01 20:50:03,896 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-01 20:50:03,897 INFO L448 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2019-01-01 20:50:03,897 INFO L448 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2019-01-01 20:50:03,897 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2019-01-01 20:50:03,897 INFO L448 ceAbstractionStarter]: For program point L17-2(lines 17 21) no Hoare annotation was computed. [2019-01-01 20:50:03,897 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-01 20:50:03,897 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-01 20:50:03,898 INFO L451 ceAbstractionStarter]: At program point L22(lines 14 23) the Hoare annotation is: true [2019-01-01 20:50:03,898 INFO L448 ceAbstractionStarter]: For program point L18(lines 18 20) no Hoare annotation was computed. [2019-01-01 20:50:03,898 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2019-01-01 20:50:03,898 INFO L451 ceAbstractionStarter]: At program point L18-2(lines 17 21) the Hoare annotation is: true [2019-01-01 20:50:03,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 08:50:03 BoogieIcfgContainer [2019-01-01 20:50:03,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 20:50:03,904 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 20:50:03,904 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 20:50:03,904 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 20:50:03,904 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:50:03" (3/4) ... [2019-01-01 20:50:03,909 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-01 20:50:03,921 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-01 20:50:03,921 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-01 20:50:03,963 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 20:50:03,963 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 20:50:03,964 INFO L168 Benchmark]: Toolchain (without parser) took 1389.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -106.7 MB). Peak memory consumption was 4.9 MB. Max. memory is 11.5 GB. [2019-01-01 20:50:03,966 INFO L168 Benchmark]: CDTParser took 1.04 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. [2019-01-01 20:50:03,967 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.98 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-01 20:50:03,968 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.94 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:50:03,968 INFO L168 Benchmark]: Boogie Preprocessor took 22.92 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:50:03,969 INFO L168 Benchmark]: RCFGBuilder took 330.08 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -144.5 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2019-01-01 20:50:03,970 INFO L168 Benchmark]: TraceAbstraction took 689.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-01-01 20:50:03,971 INFO L168 Benchmark]: Witness Printer took 59.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-01 20:50:03,977 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.04 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 246.98 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 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 34.94 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.92 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 330.08 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -144.5 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 689.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Witness Printer took 59.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 2 error locations. SAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 16 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 53 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...