./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/memsafety-ext3/naturalNumbers1_false-valid-deref.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/naturalNumbers1_false-valid-deref.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 932f76685ed1816d93a388d0ab1addae9c51483a ................................................................................................................................................................................................................................................................................................................................................................................... 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 20:49:19,511 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 20:49:19,513 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 20:49:19,525 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 20:49:19,525 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 20:49:19,526 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 20:49:19,527 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 20:49:19,529 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 20:49:19,531 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 20:49:19,532 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 20:49:19,533 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 20:49:19,533 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 20:49:19,534 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 20:49:19,535 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 20:49:19,536 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 20:49:19,537 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 20:49:19,538 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 20:49:19,540 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 20:49:19,542 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 20:49:19,544 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 20:49:19,545 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 20:49:19,546 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 20:49:19,549 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 20:49:19,549 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 20:49:19,549 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 20:49:19,550 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 20:49:19,551 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 20:49:19,552 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 20:49:19,553 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 20:49:19,555 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 20:49:19,555 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 20:49:19,556 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 20:49:19,556 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 20:49:19,556 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 20:49:19,557 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 20:49:19,558 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 20:49:19,558 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-01-14 20:49:19,574 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 20:49:19,574 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 20:49:19,575 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 20:49:19,575 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 20:49:19,576 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 20:49:19,576 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 20:49:19,576 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 20:49:19,576 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 20:49:19,576 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 20:49:19,576 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 20:49:19,577 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 20:49:19,577 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-01-14 20:49:19,577 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2019-01-14 20:49:19,577 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-01-14 20:49:19,577 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 20:49:19,577 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 20:49:19,578 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 20:49:19,578 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 20:49:19,578 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 20:49:19,578 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 20:49:19,578 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 20:49:19,579 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 20:49:19,579 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 20:49:19,579 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 20:49:19,579 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 20:49:19,579 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 -> 932f76685ed1816d93a388d0ab1addae9c51483a [2019-01-14 20:49:19,635 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 20:49:19,646 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 20:49:19,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 20:49:19,651 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 20:49:19,652 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 20:49:19,652 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/memsafety-ext3/naturalNumbers1_false-valid-deref.c [2019-01-14 20:49:19,715 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96653da72/205da0b1c6544848b8c9bb3e71221a18/FLAGe2b1fe0b9 [2019-01-14 20:49:20,209 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 20:49:20,210 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/memsafety-ext3/naturalNumbers1_false-valid-deref.c [2019-01-14 20:49:20,216 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96653da72/205da0b1c6544848b8c9bb3e71221a18/FLAGe2b1fe0b9 [2019-01-14 20:49:20,557 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96653da72/205da0b1c6544848b8c9bb3e71221a18 [2019-01-14 20:49:20,561 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 20:49:20,563 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-01-14 20:49:20,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 20:49:20,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 20:49:20,570 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 20:49:20,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 08:49:20" (1/1) ... [2019-01-14 20:49:20,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70ead93f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 08:49:20, skipping insertion in model container [2019-01-14 20:49:20,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 08:49:20" (1/1) ... [2019-01-14 20:49:20,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 20:49:20,601 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 20:49:20,858 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 20:49:20,870 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 20:49:20,898 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 20:49:20,919 INFO L195 MainTranslator]: Completed translation [2019-01-14 20:49:20,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 08:49:20 WrapperNode [2019-01-14 20:49:20,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 20:49:20,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 20:49:20,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 20:49:20,921 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 20:49:20,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 08:49:20" (1/1) ... [2019-01-14 20:49:20,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 08:49:20" (1/1) ... [2019-01-14 20:49:20,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 08:49:20" (1/1) ... [2019-01-14 20:49:20,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 08:49:20" (1/1) ... [2019-01-14 20:49:20,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 08:49:20" (1/1) ... [2019-01-14 20:49:20,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 08:49:20" (1/1) ... [2019-01-14 20:49:20,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 08:49:20" (1/1) ... [2019-01-14 20:49:20,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 20:49:20,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 20:49:20,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 20:49:20,966 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 20:49:20,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 08:49:20" (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 20:49:21,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-01-14 20:49:21,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 20:49:21,090 INFO L138 BoogieDeclarations]: Found implementation of procedure areNatural [2019-01-14 20:49:21,090 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-14 20:49:21,090 INFO L130 BoogieDeclarations]: Found specification of procedure areNatural [2019-01-14 20:49:21,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-14 20:49:21,090 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-14 20:49:21,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 20:49:21,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-14 20:49:21,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-14 20:49:21,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-01-14 20:49:21,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 20:49:21,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-14 20:49:21,459 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 20:49:21,460 INFO L286 CfgBuilder]: Removed 1 assue(true) statements. [2019-01-14 20:49:21,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 08:49:21 BoogieIcfgContainer [2019-01-14 20:49:21,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 20:49:21,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 20:49:21,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 20:49:21,466 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 20:49:21,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 08:49:20" (1/3) ... [2019-01-14 20:49:21,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c308a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 08:49:21, skipping insertion in model container [2019-01-14 20:49:21,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 08:49:20" (2/3) ... [2019-01-14 20:49:21,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c308a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 08:49:21, skipping insertion in model container [2019-01-14 20:49:21,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 08:49:21" (3/3) ... [2019-01-14 20:49:21,470 INFO L112 eAbstractionObserver]: Analyzing ICFG naturalNumbers1_false-valid-deref.c [2019-01-14 20:49:21,480 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 20:49:21,498 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-01-14 20:49:21,512 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-01-14 20:49:21,538 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 20:49:21,539 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 20:49:21,539 INFO L383 AbstractCegarLoop]: Hoare is false [2019-01-14 20:49:21,539 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 20:49:21,540 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 20:49:21,540 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 20:49:21,540 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 20:49:21,541 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 20:49:21,541 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 20:49:21,557 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-01-14 20:49:21,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-14 20:49:21,568 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 20:49:21,569 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 20:49:21,571 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, areNaturalErr0REQUIRES_VIOLATION, areNaturalErr1REQUIRES_VIOLATION]=== [2019-01-14 20:49:21,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 20:49:21,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1845664052, now seen corresponding path program 1 times [2019-01-14 20:49:21,580 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 20:49:21,581 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 20:49:21,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 20:49:21,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 20:49:21,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 20:49:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 20:49:21,809 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 20:49:21,812 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 20:49:21,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-14 20:49:21,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-14 20:49:21,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-14 20:49:21,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-14 20:49:21,828 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 5 states. [2019-01-14 20:49:21,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 20:49:21,996 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-01-14 20:49:21,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-14 20:49:21,997 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-01-14 20:49:21,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 20:49:22,010 INFO L225 Difference]: With dead ends: 21 [2019-01-14 20:49:22,010 INFO L226 Difference]: Without dead ends: 18 [2019-01-14 20:49:22,012 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-01-14 20:49:22,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-01-14 20:49:22,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-01-14 20:49:22,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-01-14 20:49:22,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-01-14 20:49:22,046 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 10 [2019-01-14 20:49:22,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 20:49:22,047 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-01-14 20:49:22,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-14 20:49:22,047 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-01-14 20:49:22,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-14 20:49:22,048 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 20:49:22,049 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 20:49:22,049 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, areNaturalErr0REQUIRES_VIOLATION, areNaturalErr1REQUIRES_VIOLATION]=== [2019-01-14 20:49:22,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 20:49:22,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1845664051, now seen corresponding path program 1 times [2019-01-14 20:49:22,050 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 20:49:22,050 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 20:49:22,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 20:49:22,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 20:49:22,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 20:49:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 20:49:22,470 WARN L181 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 12 [2019-01-14 20:49:22,473 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 20:49:22,473 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 20:49:22,474 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-14 20:49:22,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-14 20:49:22,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-14 20:49:22,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-14 20:49:22,477 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 5 states. [2019-01-14 20:49:22,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 20:49:22,601 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2019-01-14 20:49:22,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-14 20:49:22,603 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-01-14 20:49:22,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 20:49:22,606 INFO L225 Difference]: With dead ends: 23 [2019-01-14 20:49:22,606 INFO L226 Difference]: Without dead ends: 23 [2019-01-14 20:49:22,607 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-01-14 20:49:22,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-01-14 20:49:22,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2019-01-14 20:49:22,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-01-14 20:49:22,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-01-14 20:49:22,613 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 10 [2019-01-14 20:49:22,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 20:49:22,613 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-01-14 20:49:22,613 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-14 20:49:22,613 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-01-14 20:49:22,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-01-14 20:49:22,615 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 20:49:22,615 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 20:49:22,615 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, areNaturalErr0REQUIRES_VIOLATION, areNaturalErr1REQUIRES_VIOLATION]=== [2019-01-14 20:49:22,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 20:49:22,616 INFO L82 PathProgramCache]: Analyzing trace with hash -6453934, now seen corresponding path program 1 times [2019-01-14 20:49:22,616 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 20:49:22,616 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 20:49:22,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 20:49:22,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 20:49:22,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 20:49:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 20:49:22,952 WARN L181 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2019-01-14 20:49:23,027 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 20:49:23,028 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 20:49:23,028 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 20:49:23,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 20:49:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 20:49:23,080 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 20:49:23,233 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2019-01-14 20:49:23,248 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-01-14 20:49:23,250 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-14 20:49:23,257 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 20:49:23,264 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-14 20:49:23,264 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2019-01-14 20:49:23,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 20:49:23,323 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-14 20:49:23,323 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2019-01-14 20:49:23,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-01-14 20:49:23,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-01-14 20:49:23,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-01-14 20:49:23,325 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 11 states. [2019-01-14 20:49:23,465 WARN L181 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2019-01-14 20:49:23,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 20:49:23,986 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2019-01-14 20:49:23,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-14 20:49:23,987 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 13 [2019-01-14 20:49:23,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 20:49:23,988 INFO L225 Difference]: With dead ends: 16 [2019-01-14 20:49:23,988 INFO L226 Difference]: Without dead ends: 16 [2019-01-14 20:49:23,989 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2019-01-14 20:49:23,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-01-14 20:49:23,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-01-14 20:49:23,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-01-14 20:49:23,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2019-01-14 20:49:23,994 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 13 [2019-01-14 20:49:23,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 20:49:23,994 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2019-01-14 20:49:23,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-01-14 20:49:23,995 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2019-01-14 20:49:23,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-01-14 20:49:23,996 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 20:49:23,996 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 20:49:23,996 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, areNaturalErr0REQUIRES_VIOLATION, areNaturalErr1REQUIRES_VIOLATION]=== [2019-01-14 20:49:23,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 20:49:23,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1907814666, now seen corresponding path program 1 times [2019-01-14 20:49:23,997 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 20:49:23,997 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 20:49:23,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 20:49:23,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 20:49:23,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 20:49:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 20:49:24,093 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 20:49:24,093 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 20:49:24,094 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 20:49:24,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 20:49:24,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 20:49:24,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 20:49:24,095 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 4 states. [2019-01-14 20:49:24,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 20:49:24,138 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2019-01-14 20:49:24,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 20:49:24,138 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-01-14 20:49:24,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 20:49:24,139 INFO L225 Difference]: With dead ends: 15 [2019-01-14 20:49:24,139 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 20:49:24,139 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 20:49:24,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 20:49:24,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 20:49:24,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 20:49:24,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 20:49:24,140 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-01-14 20:49:24,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 20:49:24,141 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 20:49:24,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 20:49:24,141 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 20:49:24,141 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 20:49:24,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 08:49:24 BoogieIcfgContainer [2019-01-14 20:49:24,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 20:49:24,146 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 20:49:24,147 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 20:49:24,147 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 20:49:24,147 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 08:49:21" (3/4) ... [2019-01-14 20:49:24,151 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 20:49:24,157 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-01-14 20:49:24,157 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-01-14 20:49:24,157 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure areNatural [2019-01-14 20:49:24,162 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2019-01-14 20:49:24,163 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-01-14 20:49:24,163 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-14 20:49:24,163 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-14 20:49:24,164 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-14 20:49:24,207 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 20:49:24,208 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 20:49:24,208 INFO L168 Benchmark]: Toolchain (without parser) took 3646.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 952.7 MB in the beginning and 993.3 MB in the end (delta: -40.6 MB). Peak memory consumption was 96.2 MB. Max. memory is 11.5 GB. [2019-01-14 20:49:24,210 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 20:49:24,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.59 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 20:49:24,211 INFO L168 Benchmark]: Boogie Preprocessor took 44.81 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 20:49:24,212 INFO L168 Benchmark]: RCFGBuilder took 495.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-01-14 20:49:24,213 INFO L168 Benchmark]: TraceAbstraction took 2683.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.3 MB in the end (delta: 119.0 MB). Peak memory consumption was 119.0 MB. Max. memory is 11.5 GB. [2019-01-14 20:49:24,214 INFO L168 Benchmark]: Witness Printer took 61.30 ms. Allocated memory is still 1.2 GB. Free memory is still 993.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 20:49:24,219 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 355.59 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.81 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 495.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2683.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.3 MB in the end (delta: 119.0 MB). Peak memory consumption was 119.0 MB. Max. memory is 11.5 GB. * Witness Printer took 61.30 ms. Allocated memory is still 1.2 GB. Free memory is still 993.3 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: 4]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 4]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 3 error locations. SAFE Result, 2.6s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 SDtfs, 51 SDslu, 107 SDs, 0 SdLazy, 115 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 3140 SizeOfPredicates, 6 NumberOfNonLiveVariables, 77 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...