./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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/AutomizerMemDerefMemtrack.xml -i /storage/repos/svcomp/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c8f17cf5334c3a5b079beafc57a2e2bffaea721f .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 20:49:46,408 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 20:49:46,410 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 20:49:46,426 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 20:49:46,427 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 20:49:46,429 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 20:49:46,432 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 20:49:46,435 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 20:49:46,437 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 20:49:46,441 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 20:49:46,444 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 20:49:46,445 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 20:49:46,446 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 20:49:46,446 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 20:49:46,450 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 20:49:46,451 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 20:49:46,452 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 20:49:46,457 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 20:49:46,459 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 20:49:46,461 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 20:49:46,462 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 20:49:46,463 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 20:49:46,466 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 20:49:46,466 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 20:49:46,466 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 20:49:46,467 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 20:49:46,468 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 20:49:46,470 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 20:49:46,471 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 20:49:46,473 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 20:49:46,473 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 20:49:46,473 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 20:49:46,474 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 20:49:46,474 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 20:49:46,475 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 20:49:46,476 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 20:49:46,476 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-01-14 20:49:46,507 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 20:49:46,507 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 20:49:46,510 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 20:49:46,510 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 20:49:46,511 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 20:49:46,511 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 20:49:46,511 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 20:49:46,511 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 20:49:46,511 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 20:49:46,512 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 20:49:46,512 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 20:49:46,512 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-01-14 20:49:46,512 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2019-01-14 20:49:46,512 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-01-14 20:49:46,512 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 20:49:46,513 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 20:49:46,514 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 20:49:46,514 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 20:49:46,514 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 20:49:46,514 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 20:49:46,515 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 20:49:46,515 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 20:49:46,515 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 20:49:46,515 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 20:49:46,515 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 20:49:46,515 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8f17cf5334c3a5b079beafc57a2e2bffaea721f [2019-01-14 20:49:46,575 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 20:49:46,590 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 20:49:46,596 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 20:49:46,600 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 20:49:46,600 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 20:49:46,601 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c [2019-01-14 20:49:46,660 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df560b08a/6d020840a1724d4db5ac29ad7d801998/FLAG8807e605c [2019-01-14 20:49:47,078 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 20:49:47,078 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c [2019-01-14 20:49:47,086 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df560b08a/6d020840a1724d4db5ac29ad7d801998/FLAG8807e605c [2019-01-14 20:49:47,437 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df560b08a/6d020840a1724d4db5ac29ad7d801998 [2019-01-14 20:49:47,440 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 20:49:47,442 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-01-14 20:49:47,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 20:49:47,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 20:49:47,447 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 20:49:47,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 08:49:47" (1/1) ... [2019-01-14 20:49:47,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43d10fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 08:49:47, skipping insertion in model container [2019-01-14 20:49:47,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 08:49:47" (1/1) ... [2019-01-14 20:49:47,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 20:49:47,476 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 20:49:47,685 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 20:49:47,712 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 20:49:47,734 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 20:49:47,761 INFO L195 MainTranslator]: Completed translation [2019-01-14 20:49:47,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 08:49:47 WrapperNode [2019-01-14 20:49:47,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 20:49:47,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 20:49:47,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 20:49:47,764 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 20:49:47,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 08:49:47" (1/1) ... [2019-01-14 20:49:47,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 08:49:47" (1/1) ... [2019-01-14 20:49:47,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 08:49:47" (1/1) ... [2019-01-14 20:49:47,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 08:49:47" (1/1) ... [2019-01-14 20:49:47,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 08:49:47" (1/1) ... [2019-01-14 20:49:47,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 08:49:47" (1/1) ... [2019-01-14 20:49:47,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 08:49:47" (1/1) ... [2019-01-14 20:49:47,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 20:49:47,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 20:49:47,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 20:49:47,826 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 20:49:47,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 08:49:47" (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 20:49:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-01-14 20:49:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 20:49:47,976 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2019-01-14 20:49:47,976 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-14 20:49:47,977 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2019-01-14 20:49:47,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-14 20:49:47,977 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-14 20:49:47,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-01-14 20:49:47,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 20:49:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-14 20:49:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 20:49:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-14 20:49:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-14 20:49:48,342 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 20:49:48,343 INFO L286 CfgBuilder]: Removed 1 assue(true) statements. [2019-01-14 20:49:48,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 08:49:48 BoogieIcfgContainer [2019-01-14 20:49:48,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 20:49:48,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 20:49:48,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 20:49:48,347 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 20:49:48,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 08:49:47" (1/3) ... [2019-01-14 20:49:48,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5d6b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 08:49:48, skipping insertion in model container [2019-01-14 20:49:48,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 08:49:47" (2/3) ... [2019-01-14 20:49:48,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5d6b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 08:49:48, skipping insertion in model container [2019-01-14 20:49:48,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 08:49:48" (3/3) ... [2019-01-14 20:49:48,351 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers3_true-valid-memsafety.c [2019-01-14 20:49:48,359 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 20:49:48,366 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-01-14 20:49:48,380 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-01-14 20:49:48,404 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 20:49:48,405 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 20:49:48,405 INFO L383 AbstractCegarLoop]: Hoare is false [2019-01-14 20:49:48,405 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 20:49:48,405 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 20:49:48,406 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 20:49:48,406 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 20:49:48,406 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 20:49:48,406 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 20:49:48,419 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-01-14 20:49:48,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-14 20:49:48,428 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 20:49:48,429 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 20:49:48,431 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-01-14 20:49:48,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 20:49:48,437 INFO L82 PathProgramCache]: Analyzing trace with hash -335730452, now seen corresponding path program 1 times [2019-01-14 20:49:48,438 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 20:49:48,439 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 20:49:48,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 20:49:48,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 20:49:48,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 20:49:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 20:49:48,605 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 20:49:48,608 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 20:49:48,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 20:49:48,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 20:49:48,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 20:49:48,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 20:49:48,628 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 3 states. [2019-01-14 20:49:48,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 20:49:48,680 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-01-14 20:49:48,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 20:49:48,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-01-14 20:49:48,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 20:49:48,693 INFO L225 Difference]: With dead ends: 23 [2019-01-14 20:49:48,694 INFO L226 Difference]: Without dead ends: 18 [2019-01-14 20:49:48,696 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 20:49:48,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-01-14 20:49:48,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-01-14 20:49:48,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-01-14 20:49:48,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-01-14 20:49:48,727 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 9 [2019-01-14 20:49:48,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 20:49:48,728 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-01-14 20:49:48,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 20:49:48,728 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-01-14 20:49:48,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-14 20:49:48,729 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 20:49:48,729 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 20:49:48,729 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-01-14 20:49:48,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 20:49:48,730 INFO L82 PathProgramCache]: Analyzing trace with hash -335730451, now seen corresponding path program 1 times [2019-01-14 20:49:48,730 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 20:49:48,730 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 20:49:48,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 20:49:48,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 20:49:48,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 20:49:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 20:49:49,152 WARN L181 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2019-01-14 20:49:49,156 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 20:49:49,157 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 20:49:49,157 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-14 20:49:49,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-14 20:49:49,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-14 20:49:49,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 20:49:49,161 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 5 states. [2019-01-14 20:49:49,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 20:49:49,373 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2019-01-14 20:49:49,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 20:49:49,374 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-01-14 20:49:49,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 20:49:49,375 INFO L225 Difference]: With dead ends: 21 [2019-01-14 20:49:49,375 INFO L226 Difference]: Without dead ends: 21 [2019-01-14 20:49:49,376 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 20:49:49,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-01-14 20:49:49,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2019-01-14 20:49:49,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-01-14 20:49:49,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-01-14 20:49:49,381 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 9 [2019-01-14 20:49:49,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 20:49:49,381 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-01-14 20:49:49,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-14 20:49:49,381 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-01-14 20:49:49,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-01-14 20:49:49,382 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 20:49:49,382 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 20:49:49,382 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-01-14 20:49:49,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 20:49:49,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1232932722, now seen corresponding path program 1 times [2019-01-14 20:49:49,383 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 20:49:49,383 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 20:49:49,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 20:49:49,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 20:49:49,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 20:49:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 20:49:49,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 20:49:49,727 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 20:49:49,727 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-14 20:49:49,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 20:49:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 20:49:49,786 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 20:49:49,825 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-01-14 20:49:49,827 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-14 20:49:49,852 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 20:49:49,852 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-01-14 20:49:49,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 20:49:49,989 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 20:49:49,990 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2019-01-14 20:49:49,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-01-14 20:49:49,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-01-14 20:49:49,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-01-14 20:49:49,991 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 9 states. [2019-01-14 20:49:50,483 WARN L181 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2019-01-14 20:49:50,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 20:49:50,527 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2019-01-14 20:49:50,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-14 20:49:50,527 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2019-01-14 20:49:50,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 20:49:50,530 INFO L225 Difference]: With dead ends: 24 [2019-01-14 20:49:50,530 INFO L226 Difference]: Without dead ends: 24 [2019-01-14 20:49:50,531 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2019-01-14 20:49:50,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-01-14 20:49:50,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-01-14 20:49:50,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-01-14 20:49:50,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2019-01-14 20:49:50,539 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 12 [2019-01-14 20:49:50,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 20:49:50,539 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2019-01-14 20:49:50,539 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-01-14 20:49:50,539 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2019-01-14 20:49:50,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-01-14 20:49:50,541 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 20:49:50,542 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 20:49:50,542 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-01-14 20:49:50,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 20:49:50,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1135899522, now seen corresponding path program 1 times [2019-01-14 20:49:50,542 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 20:49:50,543 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 20:49:50,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 20:49:50,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 20:49:50,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 20:49:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 20:49:50,715 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-01-14 20:49:50,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 20:49:50,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-14 20:49:50,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-14 20:49:50,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-14 20:49:50,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-01-14 20:49:50,717 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 6 states. [2019-01-14 20:49:50,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 20:49:50,801 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-01-14 20:49:50,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-14 20:49:50,802 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2019-01-14 20:49:50,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 20:49:50,803 INFO L225 Difference]: With dead ends: 23 [2019-01-14 20:49:50,804 INFO L226 Difference]: Without dead ends: 23 [2019-01-14 20:49:50,805 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-01-14 20:49:50,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-01-14 20:49:50,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-01-14 20:49:50,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-01-14 20:49:50,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2019-01-14 20:49:50,809 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 22 [2019-01-14 20:49:50,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 20:49:50,809 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2019-01-14 20:49:50,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-14 20:49:50,810 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2019-01-14 20:49:50,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-01-14 20:49:50,811 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 20:49:50,811 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 20:49:50,811 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-01-14 20:49:50,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 20:49:50,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1135899523, now seen corresponding path program 1 times [2019-01-14 20:49:50,812 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 20:49:50,812 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 20:49:50,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 20:49:50,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 20:49:50,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 20:49:50,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 20:49:50,889 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 20:49:50,890 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 20:49:50,890 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-14 20:49:50,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 20:49:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 20:49:50,943 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 20:49:50,962 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 20:49:50,981 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 20:49:50,981 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-01-14 20:49:50,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-14 20:49:50,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-14 20:49:50,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-01-14 20:49:50,982 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 7 states. [2019-01-14 20:49:51,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 20:49:51,027 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2019-01-14 20:49:51,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-14 20:49:51,028 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2019-01-14 20:49:51,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 20:49:51,029 INFO L225 Difference]: With dead ends: 28 [2019-01-14 20:49:51,029 INFO L226 Difference]: Without dead ends: 28 [2019-01-14 20:49:51,030 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-01-14 20:49:51,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-01-14 20:49:51,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2019-01-14 20:49:51,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-01-14 20:49:51,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2019-01-14 20:49:51,034 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 22 [2019-01-14 20:49:51,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 20:49:51,035 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2019-01-14 20:49:51,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-14 20:49:51,035 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2019-01-14 20:49:51,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-01-14 20:49:51,036 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 20:49:51,036 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 20:49:51,036 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-01-14 20:49:51,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 20:49:51,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1477178082, now seen corresponding path program 2 times [2019-01-14 20:49:51,037 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 20:49:51,037 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 20:49:51,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 20:49:51,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 20:49:51,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 20:49:51,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 20:49:51,147 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 20:49:51,147 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 20:49:51,147 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-14 20:49:51,157 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-01-14 20:49:51,189 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-01-14 20:49:51,189 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-14 20:49:51,192 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 20:49:51,210 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-01-14 20:49:51,211 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-14 20:49:51,217 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 20:49:51,219 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-01-14 20:49:51,396 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-01-14 20:49:51,414 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-14 20:49:51,415 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2019-01-14 20:49:51,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-01-14 20:49:51,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-01-14 20:49:51,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2019-01-14 20:49:51,416 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 11 states. [2019-01-14 20:49:51,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 20:49:51,665 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2019-01-14 20:49:51,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-01-14 20:49:51,665 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2019-01-14 20:49:51,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 20:49:51,666 INFO L225 Difference]: With dead ends: 30 [2019-01-14 20:49:51,666 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 20:49:51,667 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2019-01-14 20:49:51,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 20:49:51,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 20:49:51,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 20:49:51,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 20:49:51,670 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2019-01-14 20:49:51,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 20:49:51,670 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 20:49:51,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-01-14 20:49:51,671 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 20:49:51,671 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 20:49:51,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 08:49:51 BoogieIcfgContainer [2019-01-14 20:49:51,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 20:49:51,678 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 20:49:51,678 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 20:49:51,678 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 20:49:51,680 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 08:49:48" (3/4) ... [2019-01-14 20:49:51,684 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 20:49:51,689 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-01-14 20:49:51,690 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-01-14 20:49:51,690 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers [2019-01-14 20:49:51,695 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2019-01-14 20:49:51,695 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-01-14 20:49:51,695 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-14 20:49:51,695 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-14 20:49:51,736 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 20:49:51,736 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 20:49:51,737 INFO L168 Benchmark]: Toolchain (without parser) took 4296.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 951.3 MB in the beginning and 946.1 MB in the end (delta: 5.3 MB). Peak memory consumption was 154.7 MB. Max. memory is 11.5 GB. [2019-01-14 20:49:51,738 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. [2019-01-14 20:49:51,739 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.58 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 20:49:51,740 INFO L168 Benchmark]: Boogie Preprocessor took 62.29 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 20:49:51,740 INFO L168 Benchmark]: RCFGBuilder took 518.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -184.0 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-01-14 20:49:51,741 INFO L168 Benchmark]: TraceAbstraction took 3332.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 946.1 MB in the end (delta: 178.6 MB). Peak memory consumption was 178.6 MB. Max. memory is 11.5 GB. [2019-01-14 20:49:51,742 INFO L168 Benchmark]: Witness Printer took 58.66 ms. Allocated memory is still 1.2 GB. Free memory is still 946.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 20:49:51,745 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 319.58 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 62.29 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 518.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -184.0 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3332.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 946.1 MB in the end (delta: 178.6 MB). Peak memory consumption was 178.6 MB. Max. memory is 11.5 GB. * Witness Printer took 58.66 ms. Allocated memory is still 1.2 GB. Free memory is still 946.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 5 error locations. SAFE Result, 3.2s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 76 SDtfs, 92 SDslu, 121 SDs, 0 SdLazy, 186 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=5, 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, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 158 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 13393 SizeOfPredicates, 3 NumberOfNonLiveVariables, 259 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 35/84 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...