./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted/Parallel_true-no-overflow_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/termination-crafted/Parallel_true-no-overflow_true-termination_true-valid-memsafety.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fa16f28cdab01c0d49bf2bd46e148912a30ce280 ............................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 21:26:12,225 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 21:26:12,227 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 21:26:12,245 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 21:26:12,245 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 21:26:12,246 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 21:26:12,251 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 21:26:12,254 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 21:26:12,260 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 21:26:12,261 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 21:26:12,264 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 21:26:12,264 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 21:26:12,265 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 21:26:12,268 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 21:26:12,272 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 21:26:12,274 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 21:26:12,277 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 21:26:12,279 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 21:26:12,285 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 21:26:12,291 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 21:26:12,293 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 21:26:12,296 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 21:26:12,300 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 21:26:12,301 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 21:26:12,301 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 21:26:12,303 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 21:26:12,304 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 21:26:12,307 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 21:26:12,308 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 21:26:12,311 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 21:26:12,312 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 21:26:12,312 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 21:26:12,313 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 21:26:12,313 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 21:26:12,314 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 21:26:12,316 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 21:26:12,316 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-14 21:26:12,347 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 21:26:12,347 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 21:26:12,349 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 21:26:12,349 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 21:26:12,349 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 21:26:12,349 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 21:26:12,349 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 21:26:12,350 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 21:26:12,351 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 21:26:12,352 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 21:26:12,352 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 21:26:12,352 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 21:26:12,352 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-14 21:26:12,352 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 21:26:12,352 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 21:26:12,354 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 21:26:12,354 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 21:26:12,354 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 21:26:12,354 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 21:26:12,354 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 21:26:12,354 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 21:26:12,355 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 21:26:12,355 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 21:26:12,355 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 21:26:12,355 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 21:26:12,355 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 21:26:12,355 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 -> fa16f28cdab01c0d49bf2bd46e148912a30ce280 [2019-01-14 21:26:12,419 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 21:26:12,433 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 21:26:12,438 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 21:26:12,439 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 21:26:12,440 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 21:26:12,441 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted/Parallel_true-no-overflow_true-termination_true-valid-memsafety.c [2019-01-14 21:26:12,508 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5d7547b3/0b8abb6e47b446debcfb7ed5a8fee213/FLAGd645ffbdd [2019-01-14 21:26:12,945 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 21:26:12,945 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted/Parallel_true-no-overflow_true-termination_true-valid-memsafety.c [2019-01-14 21:26:12,950 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5d7547b3/0b8abb6e47b446debcfb7ed5a8fee213/FLAGd645ffbdd [2019-01-14 21:26:13,303 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5d7547b3/0b8abb6e47b446debcfb7ed5a8fee213 [2019-01-14 21:26:13,306 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 21:26:13,307 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 21:26:13,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 21:26:13,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 21:26:13,312 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 21:26:13,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 09:26:13" (1/1) ... [2019-01-14 21:26:13,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dac9110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:13, skipping insertion in model container [2019-01-14 21:26:13,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 09:26:13" (1/1) ... [2019-01-14 21:26:13,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 21:26:13,340 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 21:26:13,490 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 21:26:13,494 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 21:26:13,511 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 21:26:13,526 INFO L195 MainTranslator]: Completed translation [2019-01-14 21:26:13,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:13 WrapperNode [2019-01-14 21:26:13,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 21:26:13,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 21:26:13,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 21:26:13,528 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 21:26:13,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:13" (1/1) ... [2019-01-14 21:26:13,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:13" (1/1) ... [2019-01-14 21:26:13,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 21:26:13,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 21:26:13,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 21:26:13,577 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 21:26:13,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:13" (1/1) ... [2019-01-14 21:26:13,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:13" (1/1) ... [2019-01-14 21:26:13,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:13" (1/1) ... [2019-01-14 21:26:13,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:13" (1/1) ... [2019-01-14 21:26:13,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:13" (1/1) ... [2019-01-14 21:26:13,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:13" (1/1) ... [2019-01-14 21:26:13,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:13" (1/1) ... [2019-01-14 21:26:13,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 21:26:13,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 21:26:13,608 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 21:26:13,609 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 21:26:13,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 21:26:13,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 21:26:13,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 21:26:13,986 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 21:26:13,987 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-14 21:26:13,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 09:26:13 BoogieIcfgContainer [2019-01-14 21:26:13,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 21:26:13,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 21:26:13,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 21:26:13,992 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 21:26:13,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 09:26:13" (1/3) ... [2019-01-14 21:26:13,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703ed798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 09:26:13, skipping insertion in model container [2019-01-14 21:26:13,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:26:13" (2/3) ... [2019-01-14 21:26:13,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703ed798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 09:26:13, skipping insertion in model container [2019-01-14 21:26:13,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 09:26:13" (3/3) ... [2019-01-14 21:26:13,996 INFO L112 eAbstractionObserver]: Analyzing ICFG Parallel_true-no-overflow_true-termination_true-valid-memsafety.c [2019-01-14 21:26:14,006 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 21:26:14,016 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-01-14 21:26:14,030 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-01-14 21:26:14,061 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 21:26:14,062 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 21:26:14,062 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 21:26:14,062 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 21:26:14,062 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 21:26:14,062 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 21:26:14,062 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 21:26:14,062 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 21:26:14,063 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 21:26:14,076 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-01-14 21:26:14,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-14 21:26:14,082 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 21:26:14,083 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-14 21:26:14,087 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 21:26:14,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 21:26:14,093 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2019-01-14 21:26:14,095 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 21:26:14,095 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 21:26:14,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:26:14,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 21:26:14,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:26:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 21:26:14,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 21:26:14,267 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 21:26:14,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-14 21:26:14,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 21:26:14,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 21:26:14,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 21:26:14,295 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2019-01-14 21:26:14,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 21:26:14,408 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-01-14 21:26:14,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 21:26:14,410 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-14 21:26:14,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 21:26:14,419 INFO L225 Difference]: With dead ends: 19 [2019-01-14 21:26:14,419 INFO L226 Difference]: Without dead ends: 10 [2019-01-14 21:26:14,422 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 21:26:14,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-01-14 21:26:14,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-01-14 21:26:14,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-01-14 21:26:14,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-01-14 21:26:14,455 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2019-01-14 21:26:14,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 21:26:14,455 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-01-14 21:26:14,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 21:26:14,456 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-01-14 21:26:14,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-14 21:26:14,457 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 21:26:14,457 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-14 21:26:14,457 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 21:26:14,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 21:26:14,458 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2019-01-14 21:26:14,458 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 21:26:14,458 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 21:26:14,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:26:14,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 21:26:14,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:26:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 21:26:14,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 21:26:14,530 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 21:26:14,530 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-14 21:26:14,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 21:26:14,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 21:26:14,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 21:26:14,533 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2019-01-14 21:26:14,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 21:26:14,586 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2019-01-14 21:26:14,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 21:26:14,588 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-14 21:26:14,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 21:26:14,589 INFO L225 Difference]: With dead ends: 10 [2019-01-14 21:26:14,589 INFO L226 Difference]: Without dead ends: 9 [2019-01-14 21:26:14,590 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 21:26:14,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-01-14 21:26:14,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-01-14 21:26:14,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-01-14 21:26:14,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2019-01-14 21:26:14,593 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 4 [2019-01-14 21:26:14,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 21:26:14,593 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2019-01-14 21:26:14,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 21:26:14,593 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2019-01-14 21:26:14,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-14 21:26:14,594 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 21:26:14,594 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-14 21:26:14,594 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 21:26:14,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 21:26:14,595 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2019-01-14 21:26:14,595 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 21:26:14,595 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 21:26:14,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:26:14,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 21:26:14,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:26:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 21:26:14,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 21:26:14,693 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 21:26:14,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 21:26:14,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 21:26:14,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 21:26:14,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-14 21:26:14,695 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 4 states. [2019-01-14 21:26:14,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 21:26:14,736 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2019-01-14 21:26:14,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 21:26:14,737 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-01-14 21:26:14,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 21:26:14,738 INFO L225 Difference]: With dead ends: 9 [2019-01-14 21:26:14,738 INFO L226 Difference]: Without dead ends: 8 [2019-01-14 21:26:14,739 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 [2019-01-14 21:26:14,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-01-14 21:26:14,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-01-14 21:26:14,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-01-14 21:26:14,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2019-01-14 21:26:14,744 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 5 [2019-01-14 21:26:14,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 21:26:14,745 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2019-01-14 21:26:14,745 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 21:26:14,745 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2019-01-14 21:26:14,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-14 21:26:14,745 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 21:26:14,746 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-14 21:26:14,750 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 21:26:14,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 21:26:14,750 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2019-01-14 21:26:14,750 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 21:26:14,750 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 21:26:14,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:26:14,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 21:26:14,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:26:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 21:26:14,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 21:26:14,790 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 21:26:14,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 21:26:14,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 21:26:14,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 21:26:14,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 21:26:14,792 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 3 states. [2019-01-14 21:26:14,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 21:26:14,821 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2019-01-14 21:26:14,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 21:26:14,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-01-14 21:26:14,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 21:26:14,822 INFO L225 Difference]: With dead ends: 8 [2019-01-14 21:26:14,822 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 21:26:14,823 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 21:26:14,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 21:26:14,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 21:26:14,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 21:26:14,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 21:26:14,824 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-01-14 21:26:14,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 21:26:14,824 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 21:26:14,824 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 21:26:14,824 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 21:26:14,824 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 21:26:14,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-14 21:26:14,871 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-01-14 21:26:14,871 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-14 21:26:14,871 INFO L444 ceAbstractionStarter]: At program point L29(lines 17 30) the Hoare annotation is: (<= ULTIMATE.start_main_~y~0 2147483647) [2019-01-14 21:26:14,871 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-01-14 21:26:14,872 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 27) no Hoare annotation was computed. [2019-01-14 21:26:14,872 INFO L444 ceAbstractionStarter]: At program point L23-2(lines 22 28) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2019-01-14 21:26:14,872 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-01-14 21:26:14,872 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-14 21:26:14,872 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-14 21:26:14,872 INFO L448 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2019-01-14 21:26:14,872 INFO L448 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2019-01-14 21:26:14,873 INFO L448 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2019-01-14 21:26:14,873 INFO L448 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2019-01-14 21:26:14,873 INFO L448 ceAbstractionStarter]: For program point L22-2(lines 22 28) no Hoare annotation was computed. [2019-01-14 21:26:14,873 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-01-14 21:26:14,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 09:26:14 BoogieIcfgContainer [2019-01-14 21:26:14,885 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 21:26:14,885 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 21:26:14,885 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 21:26:14,885 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 21:26:14,886 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 09:26:13" (3/4) ... [2019-01-14 21:26:14,890 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 21:26:14,900 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-14 21:26:14,900 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-14 21:26:14,942 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 21:26:14,942 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 21:26:14,943 INFO L168 Benchmark]: Toolchain (without parser) took 1636.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -114.2 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-01-14 21:26:14,945 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 21:26:14,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.74 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 21:26:14,947 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.52 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 21:26:14,947 INFO L168 Benchmark]: Boogie Preprocessor took 31.80 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 21:26:14,948 INFO L168 Benchmark]: RCFGBuilder took 379.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -159.5 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2019-01-14 21:26:14,948 INFO L168 Benchmark]: TraceAbstraction took 895.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 11.5 GB. [2019-01-14 21:26:14,949 INFO L168 Benchmark]: Witness Printer took 57.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 21:26:14,953 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 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 218.74 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 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 48.52 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.80 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 379.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -159.5 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 895.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 11.5 GB. * Witness Printer took 57.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. SAFE Result, 0.8s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 22 SDslu, 2 SDs, 0 SdLazy, 30 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 150 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...