./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/ldv-memsafety/StructInitialization_true-valid-memsafety_true-termination.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/ldv-memsafety/StructInitialization_true-valid-memsafety_true-termination.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 09aab7ee021274328a236afeda27749aba561ee0 .............................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-13 22:55:52,531 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-13 22:55:52,533 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-13 22:55:52,545 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-13 22:55:52,546 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-13 22:55:52,547 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-13 22:55:52,548 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-13 22:55:52,550 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-13 22:55:52,552 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-13 22:55:52,553 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-13 22:55:52,554 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-13 22:55:52,554 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-13 22:55:52,555 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-13 22:55:52,557 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-13 22:55:52,558 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-13 22:55:52,559 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-13 22:55:52,559 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-13 22:55:52,562 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-13 22:55:52,564 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-13 22:55:52,566 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-13 22:55:52,567 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-13 22:55:52,568 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-13 22:55:52,571 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-13 22:55:52,572 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-13 22:55:52,572 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-13 22:55:52,573 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-13 22:55:52,574 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-13 22:55:52,575 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-13 22:55:52,577 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-13 22:55:52,578 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-13 22:55:52,578 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-13 22:55:52,578 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-13 22:55:52,579 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-13 22:55:52,579 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-13 22:55:52,580 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-13 22:55:52,582 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-13 22:55:52,582 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-01-13 22:55:52,598 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-13 22:55:52,598 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-13 22:55:52,599 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-13 22:55:52,599 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-13 22:55:52,600 INFO L133 SettingsManager]: * Use SBE=true [2019-01-13 22:55:52,600 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-13 22:55:52,601 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-13 22:55:52,601 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-13 22:55:52,601 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-13 22:55:52,601 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-13 22:55:52,601 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-13 22:55:52,601 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-01-13 22:55:52,602 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2019-01-13 22:55:52,603 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-01-13 22:55:52,603 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-13 22:55:52,603 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-13 22:55:52,603 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-13 22:55:52,603 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-13 22:55:52,604 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-13 22:55:52,604 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-13 22:55:52,605 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-13 22:55:52,605 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-13 22:55:52,605 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-13 22:55:52,605 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-13 22:55:52,605 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-13 22:55:52,606 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-13 22:55:52,607 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 -> 09aab7ee021274328a236afeda27749aba561ee0 [2019-01-13 22:55:52,644 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-13 22:55:52,660 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-13 22:55:52,665 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-13 22:55:52,666 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-13 22:55:52,666 INFO L276 PluginConnector]: CDTParser initialized [2019-01-13 22:55:52,667 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-memsafety/StructInitialization_true-valid-memsafety_true-termination.c [2019-01-13 22:55:52,735 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d3dedc3e/80d2d545302d4ad6a2d57ced51c580b6/FLAG2cd397ab7 [2019-01-13 22:55:53,163 INFO L307 CDTParser]: Found 1 translation units. [2019-01-13 22:55:53,164 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-memsafety/StructInitialization_true-valid-memsafety_true-termination.c [2019-01-13 22:55:53,173 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d3dedc3e/80d2d545302d4ad6a2d57ced51c580b6/FLAG2cd397ab7 [2019-01-13 22:55:53,535 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d3dedc3e/80d2d545302d4ad6a2d57ced51c580b6 [2019-01-13 22:55:53,538 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-13 22:55:53,539 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-01-13 22:55:53,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-13 22:55:53,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-13 22:55:53,544 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-13 22:55:53,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 10:55:53" (1/1) ... [2019-01-13 22:55:53,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42917c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 10:55:53, skipping insertion in model container [2019-01-13 22:55:53,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 10:55:53" (1/1) ... [2019-01-13 22:55:53,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-13 22:55:53,577 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-13 22:55:53,742 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 22:55:53,762 INFO L191 MainTranslator]: Completed pre-run [2019-01-13 22:55:53,785 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 22:55:53,803 INFO L195 MainTranslator]: Completed translation [2019-01-13 22:55:53,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 10:55:53 WrapperNode [2019-01-13 22:55:53,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-13 22:55:53,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-13 22:55:53,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-13 22:55:53,805 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-13 22:55:53,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 10:55:53" (1/1) ... [2019-01-13 22:55:53,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 10:55:53" (1/1) ... [2019-01-13 22:55:53,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 10:55:53" (1/1) ... [2019-01-13 22:55:53,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 10:55:53" (1/1) ... [2019-01-13 22:55:53,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 10:55:53" (1/1) ... [2019-01-13 22:55:53,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 10:55:53" (1/1) ... [2019-01-13 22:55:53,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 10:55:53" (1/1) ... [2019-01-13 22:55:53,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-13 22:55:53,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-13 22:55:53,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-13 22:55:53,847 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-13 22:55:53,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 10:55:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-13 22:55:53,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-01-13 22:55:53,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-13 22:55:53,971 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-13 22:55:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-13 22:55:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-13 22:55:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-01-13 22:55:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-13 22:55:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-13 22:55:54,289 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-13 22:55:54,290 INFO L286 CfgBuilder]: Removed 0 assue(true) statements. [2019-01-13 22:55:54,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 10:55:54 BoogieIcfgContainer [2019-01-13 22:55:54,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-13 22:55:54,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-13 22:55:54,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-13 22:55:54,295 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-13 22:55:54,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.01 10:55:53" (1/3) ... [2019-01-13 22:55:54,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b8e6e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 10:55:54, skipping insertion in model container [2019-01-13 22:55:54,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 10:55:53" (2/3) ... [2019-01-13 22:55:54,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b8e6e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 10:55:54, skipping insertion in model container [2019-01-13 22:55:54,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 10:55:54" (3/3) ... [2019-01-13 22:55:54,298 INFO L112 eAbstractionObserver]: Analyzing ICFG StructInitialization_true-valid-memsafety_true-termination.c [2019-01-13 22:55:54,309 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-13 22:55:54,323 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-13 22:55:54,340 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-13 22:55:54,364 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-13 22:55:54,364 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-13 22:55:54,364 INFO L383 AbstractCegarLoop]: Hoare is false [2019-01-13 22:55:54,364 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-13 22:55:54,365 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-13 22:55:54,365 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-13 22:55:54,365 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-13 22:55:54,365 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-13 22:55:54,365 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-13 22:55:54,380 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-01-13 22:55:54,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-13 22:55:54,391 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 22:55:54,392 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-13 22:55:54,394 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-01-13 22:55:54,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 22:55:54,400 INFO L82 PathProgramCache]: Analyzing trace with hash 254106603, now seen corresponding path program 1 times [2019-01-13 22:55:54,401 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 22:55:54,402 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 22:55:54,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 22:55:54,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 22:55:54,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 22:55:54,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 22:55:54,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 22:55:54,608 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 22:55:54,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-13 22:55:54,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-01-13 22:55:54,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-01-13 22:55:54,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-13 22:55:54,632 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2019-01-13 22:55:54,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 22:55:54,650 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2019-01-13 22:55:54,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-13 22:55:54,652 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-01-13 22:55:54,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 22:55:54,658 INFO L225 Difference]: With dead ends: 10 [2019-01-13 22:55:54,659 INFO L226 Difference]: Without dead ends: 0 [2019-01-13 22:55:54,661 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-13 22:55:54,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-13 22:55:54,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-13 22:55:54,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-13 22:55:54,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-13 22:55:54,681 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-01-13 22:55:54,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 22:55:54,681 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-13 22:55:54,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-01-13 22:55:54,682 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-13 22:55:54,682 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-13 22:55:54,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.01 10:55:54 BoogieIcfgContainer [2019-01-13 22:55:54,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-13 22:55:54,687 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-13 22:55:54,687 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-13 22:55:54,687 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-13 22:55:54,688 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 10:55:54" (3/4) ... [2019-01-13 22:55:54,691 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-13 22:55:54,697 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-01-13 22:55:54,698 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-01-13 22:55:54,706 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2019-01-13 22:55:54,707 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2019-01-13 22:55:54,707 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-01-13 22:55:54,707 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-01-13 22:55:54,707 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-13 22:55:54,707 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-13 22:55:54,708 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-13 22:55:54,746 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-13 22:55:54,746 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-13 22:55:54,747 INFO L168 Benchmark]: Toolchain (without parser) took 1208.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -146.2 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-01-13 22:55:54,749 INFO L168 Benchmark]: CDTParser took 0.18 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. [2019-01-13 22:55:54,750 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.92 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. [2019-01-13 22:55:54,751 INFO L168 Benchmark]: Boogie Preprocessor took 42.03 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 936.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-13 22:55:54,752 INFO L168 Benchmark]: RCFGBuilder took 444.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -190.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2019-01-13 22:55:54,754 INFO L168 Benchmark]: TraceAbstraction took 394.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2019-01-13 22:55:54,754 INFO L168 Benchmark]: Witness Printer took 59.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-01-13 22:55:54,762 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 263.92 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 42.03 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 936.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 444.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -190.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 394.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. * Witness Printer took 59.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 93]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 11 locations, 1 error locations. SAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...