./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified_true-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/CookSeeZuleger-TACAS2013-Fig8a-modified_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 9a661b9ed427d2e9174ef6e6cb1f5d6d0ab8d9e2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:47:52,548 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 20:47:52,549 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 20:47:52,566 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 20:47:52,567 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 20:47:52,568 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 20:47:52,570 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 20:47:52,572 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 20:47:52,573 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 20:47:52,574 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 20:47:52,575 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 20:47:52,575 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 20:47:52,576 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 20:47:52,578 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 20:47:52,579 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 20:47:52,580 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 20:47:52,581 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 20:47:52,583 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 20:47:52,585 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 20:47:52,587 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 20:47:52,588 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 20:47:52,589 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 20:47:52,591 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 20:47:52,592 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 20:47:52,592 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 20:47:52,593 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 20:47:52,594 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 20:47:52,594 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 20:47:52,596 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 20:47:52,597 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 20:47:52,597 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 20:47:52,598 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 20:47:52,598 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 20:47:52,598 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 20:47:52,599 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 20:47:52,601 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 20:47:52,601 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-01 20:47:52,617 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 20:47:52,618 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 20:47:52,619 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 20:47:52,619 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 20:47:52,620 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 20:47:52,620 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 20:47:52,620 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 20:47:52,620 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 20:47:52,620 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 20:47:52,620 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 20:47:52,621 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 20:47:52,621 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 20:47:52,621 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-01 20:47:52,621 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 20:47:52,621 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 20:47:52,621 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 20:47:52,623 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 20:47:52,623 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 20:47:52,623 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 20:47:52,624 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 20:47:52,624 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 20:47:52,624 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 20:47:52,624 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 20:47:52,624 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 20:47:52,624 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 20:47:52,626 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 20:47:52,626 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 20:47:52,626 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 -> 9a661b9ed427d2e9174ef6e6cb1f5d6d0ab8d9e2 [2019-01-01 20:47:52,662 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 20:47:52,678 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 20:47:52,685 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 20:47:52,686 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 20:47:52,687 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 20:47:52,688 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c [2019-01-01 20:47:52,750 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e590292e/9224e844abbc4d8e8b273f48f762fd1c/FLAG381de9213 [2019-01-01 20:47:53,195 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 20:47:53,195 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c [2019-01-01 20:47:53,202 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e590292e/9224e844abbc4d8e8b273f48f762fd1c/FLAG381de9213 [2019-01-01 20:47:53,559 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e590292e/9224e844abbc4d8e8b273f48f762fd1c [2019-01-01 20:47:53,562 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 20:47:53,564 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 20:47:53,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 20:47:53,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 20:47:53,569 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 20:47:53,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:47:53" (1/1) ... [2019-01-01 20:47:53,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cd17325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:47:53, skipping insertion in model container [2019-01-01 20:47:53,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:47:53" (1/1) ... [2019-01-01 20:47:53,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 20:47:53,604 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 20:47:53,819 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:47:53,824 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 20:47:53,846 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:47:53,863 INFO L195 MainTranslator]: Completed translation [2019-01-01 20:47:53,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:47:53 WrapperNode [2019-01-01 20:47:53,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 20:47:53,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 20:47:53,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 20:47:53,865 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 20:47:53,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:47:53" (1/1) ... [2019-01-01 20:47:53,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:47:53" (1/1) ... [2019-01-01 20:47:53,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 20:47:53,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 20:47:53,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 20:47:53,904 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 20:47:53,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:47:53" (1/1) ... [2019-01-01 20:47:53,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:47:53" (1/1) ... [2019-01-01 20:47:53,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:47:53" (1/1) ... [2019-01-01 20:47:53,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:47:53" (1/1) ... [2019-01-01 20:47:53,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:47:53" (1/1) ... [2019-01-01 20:47:53,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:47:53" (1/1) ... [2019-01-01 20:47:53,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:47:53" (1/1) ... [2019-01-01 20:47:53,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 20:47:53,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 20:47:53,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 20:47:53,928 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 20:47:53,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:47:53" (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 20:47:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 20:47:54,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 20:47:54,353 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 20:47:54,353 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-01 20:47:54,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:47:54 BoogieIcfgContainer [2019-01-01 20:47:54,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 20:47:54,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 20:47:54,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 20:47:54,358 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 20:47:54,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 08:47:53" (1/3) ... [2019-01-01 20:47:54,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6754ad09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:47:54, skipping insertion in model container [2019-01-01 20:47:54,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:47:53" (2/3) ... [2019-01-01 20:47:54,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6754ad09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:47:54, skipping insertion in model container [2019-01-01 20:47:54,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:47:54" (3/3) ... [2019-01-01 20:47:54,362 INFO L112 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c [2019-01-01 20:47:54,372 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 20:47:54,380 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-01-01 20:47:54,396 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-01-01 20:47:54,429 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 20:47:54,430 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 20:47:54,430 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 20:47:54,430 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 20:47:54,430 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 20:47:54,430 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 20:47:54,430 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 20:47:54,430 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 20:47:54,431 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 20:47:54,447 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-01-01 20:47:54,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-01 20:47:54,453 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:47:54,454 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-01 20:47:54,456 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:47:54,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:47:54,463 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2019-01-01 20:47:54,465 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:47:54,466 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:47:54,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:47:54,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:47:54,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:47:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:47:54,769 WARN L181 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-01-01 20:47:54,842 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 20:47:54,844 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:47:54,844 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-01 20:47:54,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-01 20:47:54,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-01 20:47:54,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-01-01 20:47:54,863 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 5 states. [2019-01-01 20:47:54,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:47:54,977 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2019-01-01 20:47:54,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-01 20:47:54,979 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2019-01-01 20:47:54,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:47:54,989 INFO L225 Difference]: With dead ends: 23 [2019-01-01 20:47:54,989 INFO L226 Difference]: Without dead ends: 14 [2019-01-01 20:47:54,993 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-01-01 20:47:55,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-01-01 20:47:55,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-01-01 20:47:55,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-01-01 20:47:55,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-01-01 20:47:55,033 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 4 [2019-01-01 20:47:55,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:47:55,033 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-01-01 20:47:55,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-01 20:47:55,034 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-01-01 20:47:55,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-01 20:47:55,035 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:47:55,035 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-01 20:47:55,036 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:47:55,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:47:55,036 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2019-01-01 20:47:55,036 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:47:55,036 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:47:55,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:47:55,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:47:55,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:47:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:47:55,066 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 20:47:55,067 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:47:55,067 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-01 20:47:55,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-01 20:47:55,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 20:47:55,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:47:55,070 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 3 states. [2019-01-01 20:47:55,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:47:55,173 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2019-01-01 20:47:55,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 20:47:55,174 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-01 20:47:55,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:47:55,175 INFO L225 Difference]: With dead ends: 20 [2019-01-01 20:47:55,175 INFO L226 Difference]: Without dead ends: 19 [2019-01-01 20:47:55,176 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 [2019-01-01 20:47:55,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-01-01 20:47:55,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2019-01-01 20:47:55,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-01-01 20:47:55,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2019-01-01 20:47:55,182 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 4 [2019-01-01 20:47:55,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:47:55,182 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2019-01-01 20:47:55,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-01 20:47:55,182 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2019-01-01 20:47:55,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-01 20:47:55,183 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:47:55,183 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-01 20:47:55,183 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:47:55,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:47:55,184 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2019-01-01 20:47:55,184 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:47:55,184 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:47:55,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:47:55,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:47:55,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:47:55,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:47:55,246 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 20:47:55,247 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:47:55,247 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-01 20:47:55,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-01 20:47:55,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 20:47:55,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:47:55,248 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand 3 states. [2019-01-01 20:47:55,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:47:55,293 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2019-01-01 20:47:55,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 20:47:55,296 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-01-01 20:47:55,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:47:55,297 INFO L225 Difference]: With dead ends: 18 [2019-01-01 20:47:55,297 INFO L226 Difference]: Without dead ends: 17 [2019-01-01 20:47:55,298 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 [2019-01-01 20:47:55,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-01-01 20:47:55,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-01-01 20:47:55,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-01-01 20:47:55,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-01-01 20:47:55,303 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 5 [2019-01-01 20:47:55,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:47:55,303 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-01-01 20:47:55,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-01 20:47:55,303 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-01-01 20:47:55,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-01 20:47:55,305 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:47:55,305 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-01 20:47:55,305 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:47:55,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:47:55,306 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2019-01-01 20:47:55,306 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:47:55,306 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:47:55,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:47:55,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:47:55,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:47:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:47:55,437 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 20:47:55,438 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:47:55,438 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 20:47:55,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 20:47:55,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 20:47:55,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 20:47:55,439 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-01-01 20:47:55,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:47:55,566 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2019-01-01 20:47:55,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-01 20:47:55,566 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-01-01 20:47:55,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:47:55,567 INFO L225 Difference]: With dead ends: 17 [2019-01-01 20:47:55,567 INFO L226 Difference]: Without dead ends: 16 [2019-01-01 20:47:55,568 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-01 20:47:55,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-01-01 20:47:55,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-01-01 20:47:55,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-01-01 20:47:55,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-01-01 20:47:55,572 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 5 [2019-01-01 20:47:55,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:47:55,572 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-01-01 20:47:55,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 20:47:55,573 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-01-01 20:47:55,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-01 20:47:55,573 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:47:55,573 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2019-01-01 20:47:55,574 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:47:55,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:47:55,574 INFO L82 PathProgramCache]: Analyzing trace with hash 784501312, now seen corresponding path program 1 times [2019-01-01 20:47:55,574 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:47:55,574 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:47:55,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:47:55,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:47:55,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:47:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:47:55,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 20:47:55,740 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-01 20:47:55,740 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 [2019-01-01 20:47:55,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:47:55,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:47:55,778 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 20:47:55,880 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-01 20:47:55,899 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-01 20:47:55,900 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2019-01-01 20:47:55,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-01 20:47:55,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-01 20:47:55,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-01-01 20:47:55,901 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 7 states. [2019-01-01 20:47:56,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:47:56,051 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2019-01-01 20:47:56,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-01 20:47:56,054 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2019-01-01 20:47:56,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:47:56,055 INFO L225 Difference]: With dead ends: 16 [2019-01-01 20:47:56,055 INFO L226 Difference]: Without dead ends: 15 [2019-01-01 20:47:56,057 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-01-01 20:47:56,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-01-01 20:47:56,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2019-01-01 20:47:56,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-01-01 20:47:56,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-01-01 20:47:56,066 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 8 [2019-01-01 20:47:56,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:47:56,066 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-01-01 20:47:56,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-01 20:47:56,066 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-01-01 20:47:56,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-01 20:47:56,067 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:47:56,067 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-01-01 20:47:56,068 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:47:56,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:47:56,070 INFO L82 PathProgramCache]: Analyzing trace with hash 784501120, now seen corresponding path program 1 times [2019-01-01 20:47:56,070 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:47:56,070 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:47:56,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:47:56,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:47:56,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:47:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:47:56,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 20:47:56,130 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:47:56,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-01 20:47:56,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 20:47:56,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 20:47:56,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-01 20:47:56,132 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 4 states. [2019-01-01 20:47:56,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:47:56,190 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2019-01-01 20:47:56,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-01 20:47:56,191 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-01-01 20:47:56,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:47:56,192 INFO L225 Difference]: With dead ends: 21 [2019-01-01 20:47:56,192 INFO L226 Difference]: Without dead ends: 0 [2019-01-01 20:47:56,193 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-01 20:47:56,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-01 20:47:56,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-01 20:47:56,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-01 20:47:56,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 20:47:56,194 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-01-01 20:47:56,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:47:56,194 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 20:47:56,194 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 20:47:56,194 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-01 20:47:56,194 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-01 20:47:56,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-01 20:47:56,344 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-01 20:47:56,344 INFO L448 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2019-01-01 20:47:56,344 INFO L448 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2019-01-01 20:47:56,344 INFO L448 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2019-01-01 20:47:56,345 INFO L448 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2019-01-01 20:47:56,345 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2019-01-01 20:47:56,345 INFO L448 ceAbstractionStarter]: For program point L17-2(lines 17 23) no Hoare annotation was computed. [2019-01-01 20:47:56,345 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2019-01-01 20:47:56,345 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-01 20:47:56,345 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-01 20:47:56,350 INFO L444 ceAbstractionStarter]: At program point L24(lines 13 25) the Hoare annotation is: (or (<= (+ ULTIMATE.start_main_~K~0 1) ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~K~0 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 2147483646)) [2019-01-01 20:47:56,350 INFO L448 ceAbstractionStarter]: For program point L18(lines 18 22) no Hoare annotation was computed. [2019-01-01 20:47:56,350 INFO L444 ceAbstractionStarter]: At program point L18-2(lines 17 23) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) (<= ULTIMATE.start_main_~K~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~K~0 2147483648))) [2019-01-01 20:47:56,351 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2019-01-01 20:47:56,351 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2019-01-01 20:47:56,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 08:47:56 BoogieIcfgContainer [2019-01-01 20:47:56,366 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 20:47:56,367 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 20:47:56,367 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 20:47:56,367 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 20:47:56,368 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:47:54" (3/4) ... [2019-01-01 20:47:56,373 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-01 20:47:56,384 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-01 20:47:56,385 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-01 20:47:56,430 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 20:47:56,431 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 20:47:56,431 INFO L168 Benchmark]: Toolchain (without parser) took 2868.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 952.7 MB in the beginning and 1.0 GB in the end (delta: -77.8 MB). Peak memory consumption was 58.5 MB. Max. memory is 11.5 GB. [2019-01-01 20:47:56,433 INFO L168 Benchmark]: CDTParser took 0.16 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 20:47:56,434 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.40 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 20:47:56,434 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.71 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 20:47:56,436 INFO L168 Benchmark]: Boogie Preprocessor took 23.42 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 20:47:56,436 INFO L168 Benchmark]: RCFGBuilder took 426.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2019-01-01 20:47:56,437 INFO L168 Benchmark]: TraceAbstraction took 2011.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 75.9 MB). Peak memory consumption was 75.9 MB. Max. memory is 11.5 GB. [2019-01-01 20:47:56,438 INFO L168 Benchmark]: Witness Printer took 63.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:47:56,443 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 299.40 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 38.71 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 23.42 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 426.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2011.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 75.9 MB). Peak memory consumption was 75.9 MB. Max. memory is 11.5 GB. * Witness Printer took 63.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. 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: 21]: 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 - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((x <= 2147483647 && 0 <= x + 2147483648) && K <= 2147483647) && 0 <= K + 2147483648 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: (K + 1 <= x || K == x) || x <= 2147483646 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. SAFE Result, 1.9s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 15 SDtfs, 53 SDslu, 3 SDs, 0 SdLazy, 101 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=2, 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, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 29 HoareAnnotationTreeSize, 2 FomulaSimplifications, 115 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 18 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 784 SizeOfPredicates, 1 NumberOfNonLiveVariables, 19 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 4/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...