./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 00:36:51,873 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 00:36:51,875 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 00:36:51,886 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 00:36:51,887 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 00:36:51,888 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 00:36:51,889 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 00:36:51,891 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 00:36:51,892 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 00:36:51,893 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 00:36:51,894 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 00:36:51,894 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 00:36:51,895 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 00:36:51,896 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 00:36:51,897 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 00:36:51,898 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 00:36:51,899 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 00:36:51,901 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 00:36:51,903 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 00:36:51,905 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 00:36:51,907 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 00:36:51,910 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 00:36:51,916 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 00:36:51,918 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 00:36:51,918 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 00:36:51,920 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 00:36:51,925 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 00:36:51,926 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 00:36:51,927 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 00:36:51,927 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 00:36:51,930 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 00:36:51,931 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 00:36:51,931 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 00:36:51,931 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 00:36:51,932 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 00:36:51,935 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 00:36:51,937 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-01-14 00:36:51,963 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 00:36:51,964 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 00:36:51,966 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 00:36:51,969 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 00:36:51,969 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 00:36:51,969 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 00:36:51,969 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 00:36:51,970 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 00:36:51,970 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 00:36:51,970 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 00:36:51,970 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 00:36:51,970 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-01-14 00:36:51,970 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2019-01-14 00:36:51,971 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-01-14 00:36:51,971 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 00:36:51,971 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 00:36:51,971 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 00:36:51,971 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 00:36:51,971 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 00:36:51,972 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 00:36:51,974 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 00:36:51,975 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 00:36:51,975 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 00:36:51,975 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 00:36:51,975 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 00:36:51,975 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 00:36:51,976 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 00:36:52,039 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 00:36:52,054 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 00:36:52,059 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 00:36:52,063 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 00:36:52,063 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 00:36:52,064 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/memsafety-ext3/naturalNumbers1_false-valid-deref.c [2019-01-14 00:36:52,120 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea01fe4f7/ffcbe7cf756549deb42df8197a65d017/FLAG6d00bc1b1 [2019-01-14 00:36:52,548 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 00:36:52,549 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/memsafety-ext3/naturalNumbers1_false-valid-deref.c [2019-01-14 00:36:52,555 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea01fe4f7/ffcbe7cf756549deb42df8197a65d017/FLAG6d00bc1b1 [2019-01-14 00:36:52,948 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea01fe4f7/ffcbe7cf756549deb42df8197a65d017 [2019-01-14 00:36:52,952 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 00:36:52,953 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-01-14 00:36:52,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 00:36:52,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 00:36:52,958 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 00:36:52,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 12:36:52" (1/1) ... [2019-01-14 00:36:52,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f8b5888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 12:36:52, skipping insertion in model container [2019-01-14 00:36:52,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 12:36:52" (1/1) ... [2019-01-14 00:36:52,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 00:36:52,987 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 00:36:53,171 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 00:36:53,184 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 00:36:53,206 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 00:36:53,223 INFO L195 MainTranslator]: Completed translation [2019-01-14 00:36:53,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 12:36:53 WrapperNode [2019-01-14 00:36:53,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 00:36:53,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 00:36:53,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 00:36:53,224 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 00:36:53,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 12:36:53" (1/1) ... [2019-01-14 00:36:53,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 12:36:53" (1/1) ... [2019-01-14 00:36:53,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 12:36:53" (1/1) ... [2019-01-14 00:36:53,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 12:36:53" (1/1) ... [2019-01-14 00:36:53,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 12:36:53" (1/1) ... [2019-01-14 00:36:53,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 12:36:53" (1/1) ... [2019-01-14 00:36:53,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 12:36:53" (1/1) ... [2019-01-14 00:36:53,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 00:36:53,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 00:36:53,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 00:36:53,267 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 00:36:53,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 12:36:53" (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 [2019-01-14 00:36:53,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-01-14 00:36:53,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 00:36:53,374 INFO L138 BoogieDeclarations]: Found implementation of procedure areNatural [2019-01-14 00:36:53,374 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-14 00:36:53,374 INFO L130 BoogieDeclarations]: Found specification of procedure areNatural [2019-01-14 00:36:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-14 00:36:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-14 00:36:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 00:36:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-14 00:36:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-14 00:36:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-01-14 00:36:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 00:36:53,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-14 00:36:53,679 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 00:36:53,680 INFO L286 CfgBuilder]: Removed 1 assue(true) statements. [2019-01-14 00:36:53,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 12:36:53 BoogieIcfgContainer [2019-01-14 00:36:53,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 00:36:53,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 00:36:53,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 00:36:53,686 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 00:36:53,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 12:36:52" (1/3) ... [2019-01-14 00:36:53,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50faef3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 12:36:53, skipping insertion in model container [2019-01-14 00:36:53,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 12:36:53" (2/3) ... [2019-01-14 00:36:53,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50faef3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 12:36:53, skipping insertion in model container [2019-01-14 00:36:53,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 12:36:53" (3/3) ... [2019-01-14 00:36:53,691 INFO L112 eAbstractionObserver]: Analyzing ICFG naturalNumbers1_false-valid-deref.c [2019-01-14 00:36:53,702 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 00:36:53,712 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-01-14 00:36:53,730 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-01-14 00:36:53,752 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 00:36:53,753 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 00:36:53,753 INFO L383 AbstractCegarLoop]: Hoare is false [2019-01-14 00:36:53,753 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 00:36:53,753 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 00:36:53,753 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 00:36:53,753 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 00:36:53,754 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 00:36:53,754 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 00:36:53,769 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-01-14 00:36:53,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-14 00:36:53,779 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 00:36:53,780 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 00:36:53,783 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, areNaturalErr1REQUIRES_VIOLATION, areNaturalErr0REQUIRES_VIOLATION]=== [2019-01-14 00:36:53,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 00:36:53,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1845664052, now seen corresponding path program 1 times [2019-01-14 00:36:53,792 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 00:36:53,793 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 00:36:53,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 00:36:53,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 00:36:53,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 00:36:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 00:36:54,016 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 00:36:54,018 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 00:36:54,019 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-14 00:36:54,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-14 00:36:54,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-14 00:36:54,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-14 00:36:54,038 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 5 states. [2019-01-14 00:36:54,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 00:36:54,224 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-01-14 00:36:54,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-14 00:36:54,226 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-01-14 00:36:54,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 00:36:54,235 INFO L225 Difference]: With dead ends: 21 [2019-01-14 00:36:54,236 INFO L226 Difference]: Without dead ends: 18 [2019-01-14 00:36:54,238 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-01-14 00:36:54,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-01-14 00:36:54,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-01-14 00:36:54,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-01-14 00:36:54,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-01-14 00:36:54,269 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 10 [2019-01-14 00:36:54,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 00:36:54,269 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-01-14 00:36:54,270 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-14 00:36:54,270 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-01-14 00:36:54,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-14 00:36:54,271 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 00:36:54,271 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 00:36:54,271 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, areNaturalErr1REQUIRES_VIOLATION, areNaturalErr0REQUIRES_VIOLATION]=== [2019-01-14 00:36:54,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 00:36:54,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1845664051, now seen corresponding path program 1 times [2019-01-14 00:36:54,272 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 00:36:54,272 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 00:36:54,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 00:36:54,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 00:36:54,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 00:36:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 00:36:54,561 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 00:36:54,562 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 00:36:54,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-14 00:36:54,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-14 00:36:54,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-14 00:36:54,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-14 00:36:54,566 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 5 states. [2019-01-14 00:36:54,772 WARN L181 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-01-14 00:36:54,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 00:36:54,828 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2019-01-14 00:36:54,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-14 00:36:54,829 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-01-14 00:36:54,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 00:36:54,832 INFO L225 Difference]: With dead ends: 23 [2019-01-14 00:36:54,832 INFO L226 Difference]: Without dead ends: 23 [2019-01-14 00:36:54,833 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 00:36:54,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-01-14 00:36:54,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2019-01-14 00:36:54,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-01-14 00:36:54,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-01-14 00:36:54,839 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 10 [2019-01-14 00:36:54,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 00:36:54,840 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-01-14 00:36:54,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-14 00:36:54,840 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-01-14 00:36:54,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-01-14 00:36:54,841 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 00:36:54,842 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 00:36:54,842 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, areNaturalErr1REQUIRES_VIOLATION, areNaturalErr0REQUIRES_VIOLATION]=== [2019-01-14 00:36:54,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 00:36:54,842 INFO L82 PathProgramCache]: Analyzing trace with hash -6453934, now seen corresponding path program 1 times [2019-01-14 00:36:54,842 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 00:36:54,842 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 00:36:54,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 00:36:54,844 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 00:36:54,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 00:36:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 00:36:55,238 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 00:36:55,241 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 00:36:55,241 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 00:36:55,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 00:36:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 00:36:55,278 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 00:36:55,453 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 00:36:55,460 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 00:36:55,464 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-14 00:36:55,480 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 00:36:55,485 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 00:36:55,486 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2019-01-14 00:36:55,502 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 00:36:55,526 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-14 00:36:55,526 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2019-01-14 00:36:55,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-01-14 00:36:55,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-01-14 00:36:55,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-01-14 00:36:55,528 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 11 states. [2019-01-14 00:36:55,702 WARN L181 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2019-01-14 00:36:56,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 00:36:56,178 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2019-01-14 00:36:56,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-14 00:36:56,179 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 13 [2019-01-14 00:36:56,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 00:36:56,180 INFO L225 Difference]: With dead ends: 16 [2019-01-14 00:36:56,180 INFO L226 Difference]: Without dead ends: 16 [2019-01-14 00:36:56,183 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 00:36:56,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-01-14 00:36:56,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-01-14 00:36:56,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-01-14 00:36:56,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2019-01-14 00:36:56,187 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 13 [2019-01-14 00:36:56,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 00:36:56,187 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2019-01-14 00:36:56,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-01-14 00:36:56,187 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2019-01-14 00:36:56,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-01-14 00:36:56,189 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 00:36:56,189 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 00:36:56,189 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, areNaturalErr1REQUIRES_VIOLATION, areNaturalErr0REQUIRES_VIOLATION]=== [2019-01-14 00:36:56,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 00:36:56,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1907814666, now seen corresponding path program 1 times [2019-01-14 00:36:56,190 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 00:36:56,190 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 00:36:56,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 00:36:56,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 00:36:56,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 00:36:56,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 00:36:56,283 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 00:36:56,283 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 00:36:56,284 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 00:36:56,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 00:36:56,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 00:36:56,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 00:36:56,285 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 4 states. [2019-01-14 00:36:56,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 00:36:56,327 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2019-01-14 00:36:56,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 00:36:56,328 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-01-14 00:36:56,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 00:36:56,328 INFO L225 Difference]: With dead ends: 15 [2019-01-14 00:36:56,328 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 00:36:56,329 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 00:36:56,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 00:36:56,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 00:36:56,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 00:36:56,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 00:36:56,330 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-01-14 00:36:56,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 00:36:56,330 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 00:36:56,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 00:36:56,330 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 00:36:56,331 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 00:36:56,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 12:36:56 BoogieIcfgContainer [2019-01-14 00:36:56,336 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 00:36:56,336 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 00:36:56,336 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 00:36:56,336 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 00:36:56,337 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 12:36:53" (3/4) ... [2019-01-14 00:36:56,340 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 00:36:56,346 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-01-14 00:36:56,347 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-01-14 00:36:56,347 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure areNatural [2019-01-14 00:36:56,352 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2019-01-14 00:36:56,352 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-01-14 00:36:56,353 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-14 00:36:56,353 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-14 00:36:56,353 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-14 00:36:56,398 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 00:36:56,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 00:36:56,399 INFO L168 Benchmark]: Toolchain (without parser) took 3447.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 943.3 MB in the beginning and 1.0 GB in the end (delta: -60.8 MB). Peak memory consumption was 89.1 MB. Max. memory is 11.5 GB. [2019-01-14 00:36:56,401 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 00:36:56,401 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.53 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 00:36:56,403 INFO L168 Benchmark]: Boogie Preprocessor took 42.34 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 00:36:56,403 INFO L168 Benchmark]: RCFGBuilder took 414.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -188.9 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-01-14 00:36:56,404 INFO L168 Benchmark]: TraceAbstraction took 2653.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 117.3 MB). Peak memory consumption was 117.3 MB. Max. memory is 11.5 GB. [2019-01-14 00:36:56,405 INFO L168 Benchmark]: Witness Printer took 62.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 00:36:56,409 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 269.53 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.34 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 414.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -188.9 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2653.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 117.3 MB). Peak memory consumption was 117.3 MB. Max. memory is 11.5 GB. * Witness Printer took 62.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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, 2.5s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 SDtfs, 51 SDslu, 107 SDs, 0 SdLazy, 115 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s 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, 0.0s SatisfiabilityAnalysisTime, 1.0s 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...