./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loops/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/loops/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0322173b3e50156a3157d6284ff4dd2480f2ac8d ............................................................................................................................................................................................................................................................................................................................................................. 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 17:06:47,891 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 17:06:47,892 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 17:06:47,904 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 17:06:47,904 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 17:06:47,905 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 17:06:47,907 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 17:06:47,908 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 17:06:47,910 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 17:06:47,911 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 17:06:47,911 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 17:06:47,912 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 17:06:47,913 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 17:06:47,914 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 17:06:47,915 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 17:06:47,916 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 17:06:47,917 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 17:06:47,919 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 17:06:47,921 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 17:06:47,922 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 17:06:47,923 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 17:06:47,925 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 17:06:47,927 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 17:06:47,927 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 17:06:47,928 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 17:06:47,929 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 17:06:47,930 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 17:06:47,930 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 17:06:47,931 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 17:06:47,933 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 17:06:47,933 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 17:06:47,934 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 17:06:47,934 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 17:06:47,934 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 17:06:47,935 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 17:06:47,936 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 17:06:47,936 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-14 17:06:47,951 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 17:06:47,951 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 17:06:47,952 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 17:06:47,953 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 17:06:47,953 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 17:06:47,953 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 17:06:47,953 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 17:06:47,953 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 17:06:47,954 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 17:06:47,954 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 17:06:47,954 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 17:06:47,954 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 17:06:47,954 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 17:06:47,955 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 17:06:47,955 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 17:06:47,955 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 17:06:47,955 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 17:06:47,955 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 17:06:47,956 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 17:06:47,956 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 17:06:47,956 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 17:06:47,956 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 17:06:47,956 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 17:06:47,956 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 17:06:47,957 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 17:06:47,957 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 17:06:47,957 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 17:06:47,957 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) 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 -> 0322173b3e50156a3157d6284ff4dd2480f2ac8d [2019-01-14 17:06:47,991 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 17:06:48,003 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 17:06:48,008 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 17:06:48,009 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 17:06:48,009 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 17:06:48,010 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i [2019-01-14 17:06:48,066 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1c136add/969a7d69dbc744e8a4bd27d127e0cfaa/FLAG0fea15326 [2019-01-14 17:06:48,447 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 17:06:48,448 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i [2019-01-14 17:06:48,452 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1c136add/969a7d69dbc744e8a4bd27d127e0cfaa/FLAG0fea15326 [2019-01-14 17:06:48,842 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1c136add/969a7d69dbc744e8a4bd27d127e0cfaa [2019-01-14 17:06:48,847 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 17:06:48,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 17:06:48,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 17:06:48,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 17:06:48,858 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 17:06:48,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:06:48" (1/1) ... [2019-01-14 17:06:48,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20572cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:48, skipping insertion in model container [2019-01-14 17:06:48,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:06:48" (1/1) ... [2019-01-14 17:06:48,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 17:06:48,891 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 17:06:49,115 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:06:49,130 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 17:06:49,161 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:06:49,179 INFO L195 MainTranslator]: Completed translation [2019-01-14 17:06:49,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:49 WrapperNode [2019-01-14 17:06:49,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 17:06:49,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 17:06:49,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 17:06:49,182 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 17:06:49,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:49" (1/1) ... [2019-01-14 17:06:49,199 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:49" (1/1) ... [2019-01-14 17:06:49,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 17:06:49,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 17:06:49,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 17:06:49,226 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 17:06:49,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:49" (1/1) ... [2019-01-14 17:06:49,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:49" (1/1) ... [2019-01-14 17:06:49,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:49" (1/1) ... [2019-01-14 17:06:49,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:49" (1/1) ... [2019-01-14 17:06:49,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:49" (1/1) ... [2019-01-14 17:06:49,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:49" (1/1) ... [2019-01-14 17:06:49,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:49" (1/1) ... [2019-01-14 17:06:49,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 17:06:49,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 17:06:49,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 17:06:49,263 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 17:06:49,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:49" (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 17:06:49,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-14 17:06:49,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 17:06:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 17:06:49,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 17:06:49,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-14 17:06:49,723 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 17:06:49,723 INFO L286 CfgBuilder]: Removed 9 assue(true) statements. [2019-01-14 17:06:49,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:06:49 BoogieIcfgContainer [2019-01-14 17:06:49,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 17:06:49,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 17:06:49,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 17:06:49,731 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 17:06:49,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 05:06:48" (1/3) ... [2019-01-14 17:06:49,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae10cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:06:49, skipping insertion in model container [2019-01-14 17:06:49,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:49" (2/3) ... [2019-01-14 17:06:49,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae10cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:06:49, skipping insertion in model container [2019-01-14 17:06:49,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:06:49" (3/3) ... [2019-01-14 17:06:49,736 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i [2019-01-14 17:06:49,749 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 17:06:49,758 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-14 17:06:49,780 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-14 17:06:49,841 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 17:06:49,842 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 17:06:49,842 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 17:06:49,842 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 17:06:49,842 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 17:06:49,842 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 17:06:49,842 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 17:06:49,843 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 17:06:49,843 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 17:06:49,859 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-01-14 17:06:49,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-14 17:06:49,864 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:06:49,865 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-14 17:06:49,867 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:06:49,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:06:49,872 INFO L82 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2019-01-14 17:06:49,874 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:06:49,874 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:06:49,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:06:49,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:06:49,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:06:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:06:50,105 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 17:06:50,108 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 17:06:50,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-14 17:06:50,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 17:06:50,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 17:06:50,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 17:06:50,125 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 4 states. [2019-01-14 17:06:50,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:06:50,238 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2019-01-14 17:06:50,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-14 17:06:50,240 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-01-14 17:06:50,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:06:50,247 INFO L225 Difference]: With dead ends: 39 [2019-01-14 17:06:50,247 INFO L226 Difference]: Without dead ends: 13 [2019-01-14 17:06:50,250 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 17:06:50,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-01-14 17:06:50,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 10. [2019-01-14 17:06:50,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-01-14 17:06:50,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-01-14 17:06:50,280 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2019-01-14 17:06:50,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:06:50,280 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-01-14 17:06:50,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 17:06:50,281 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-01-14 17:06:50,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-14 17:06:50,281 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:06:50,281 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:06:50,282 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:06:50,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:06:50,282 INFO L82 PathProgramCache]: Analyzing trace with hash -185344033, now seen corresponding path program 1 times [2019-01-14 17:06:50,282 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:06:50,283 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:06:50,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:06:50,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:06:50,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:06:50,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:06:50,524 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 17:06:50,524 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 17:06:50,525 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 17:06:50,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:06:50,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:06:50,591 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:06:50,826 WARN L181 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 12 [2019-01-14 17:06:50,885 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 17:06:50,904 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 17:06:50,905 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2019-01-14 17:06:50,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-14 17:06:50,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-14 17:06:50,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-01-14 17:06:50,906 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 8 states. [2019-01-14 17:06:51,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:06:51,032 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-01-14 17:06:51,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-14 17:06:51,033 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-01-14 17:06:51,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:06:51,034 INFO L225 Difference]: With dead ends: 19 [2019-01-14 17:06:51,035 INFO L226 Difference]: Without dead ends: 17 [2019-01-14 17:06:51,037 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-01-14 17:06:51,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-01-14 17:06:51,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2019-01-14 17:06:51,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-01-14 17:06:51,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-01-14 17:06:51,042 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 9 [2019-01-14 17:06:51,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:06:51,042 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-01-14 17:06:51,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-14 17:06:51,042 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-01-14 17:06:51,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-01-14 17:06:51,044 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:06:51,044 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2019-01-14 17:06:51,044 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:06:51,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:06:51,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1625670603, now seen corresponding path program 2 times [2019-01-14 17:06:51,046 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:06:51,046 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:06:51,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:06:51,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:06:51,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:06:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:06:51,242 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-01-14 17:06:51,243 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 17:06:51,243 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-14 17:06:51,263 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-01-14 17:06:51,304 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-01-14 17:06:51,304 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-14 17:06:51,307 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:06:51,424 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-01-14 17:06:51,442 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 17:06:51,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2019-01-14 17:06:51,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-14 17:06:51,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-14 17:06:51,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-01-14 17:06:51,444 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 7 states. [2019-01-14 17:06:51,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:06:51,583 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-01-14 17:06:51,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 17:06:51,586 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-01-14 17:06:51,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:06:51,587 INFO L225 Difference]: With dead ends: 14 [2019-01-14 17:06:51,587 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 17:06:51,587 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-01-14 17:06:51,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 17:06:51,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 17:06:51,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 17:06:51,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 17:06:51,589 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-01-14 17:06:51,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:06:51,589 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 17:06:51,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-14 17:06:51,590 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 17:06:51,590 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 17:06:51,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-14 17:06:51,750 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-14 17:06:51,751 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-01-14 17:06:51,751 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-01-14 17:06:51,751 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-14 17:06:51,751 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-14 17:06:51,751 INFO L451 ceAbstractionStarter]: At program point L24(lines 14 25) the Hoare annotation is: true [2019-01-14 17:06:51,752 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-01-14 17:06:51,752 INFO L448 ceAbstractionStarter]: For program point L18-2(lines 18 22) no Hoare annotation was computed. [2019-01-14 17:06:51,752 INFO L444 ceAbstractionStarter]: At program point L18-3(lines 18 22) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_glob2_~pathlim.offset ~tmp~0.offset)) (.cse1 (= ULTIMATE.start_glob2_~pathlim.base ~tmp~0.base)) (.cse2 (= ~tmp~0.base ULTIMATE.start_glob2_~p~0.base))) (or (and .cse0 (<= (+ ULTIMATE.start_glob2_~p~0.offset 4) ~tmp~0.offset) .cse1 .cse2) (and .cse0 .cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse2))) [2019-01-14 17:06:51,752 INFO L448 ceAbstractionStarter]: For program point L18-4(lines 18 22) no Hoare annotation was computed. [2019-01-14 17:06:51,752 INFO L451 ceAbstractionStarter]: At program point L37(lines 27 38) the Hoare annotation is: true [2019-01-14 17:06:51,752 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-01-14 17:06:51,753 INFO L444 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_glob2_~pathlim.offset ~tmp~0.offset) (= ULTIMATE.start_glob2_~pathlim.base ~tmp~0.base) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ~tmp~0.base ULTIMATE.start_glob2_~p~0.base)) [2019-01-14 17:06:51,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 05:06:51 BoogieIcfgContainer [2019-01-14 17:06:51,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 17:06:51,774 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 17:06:51,775 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 17:06:51,775 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 17:06:51,776 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:06:49" (3/4) ... [2019-01-14 17:06:51,780 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 17:06:51,796 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-01-14 17:06:51,796 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-01-14 17:06:51,870 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 17:06:51,870 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 17:06:51,871 INFO L168 Benchmark]: Toolchain (without parser) took 3023.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 171.4 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -106.1 MB). Peak memory consumption was 65.3 MB. Max. memory is 11.5 GB. [2019-01-14 17:06:51,872 INFO L168 Benchmark]: CDTParser took 0.17 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 17:06:51,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.55 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 939.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-01-14 17:06:51,874 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.64 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:06:51,874 INFO L168 Benchmark]: Boogie Preprocessor took 38.34 ms. Allocated memory is still 1.0 GB. Free memory was 939.3 MB in the beginning and 933.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-14 17:06:51,880 INFO L168 Benchmark]: RCFGBuilder took 462.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 171.4 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -213.4 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-01-14 17:06:51,881 INFO L168 Benchmark]: TraceAbstraction took 2045.70 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: 89.8 MB). Peak memory consumption was 89.8 MB. Max. memory is 11.5 GB. [2019-01-14 17:06:51,883 INFO L168 Benchmark]: Witness Printer took 96.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:06:51,892 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 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 326.55 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 939.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.64 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.34 ms. Allocated memory is still 1.0 GB. Free memory was 939.3 MB in the beginning and 933.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 462.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 171.4 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -213.4 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2045.70 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: 89.8 MB). Peak memory consumption was 89.8 MB. Max. memory is 11.5 GB. * Witness Printer took 96.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (((pathlim <= tmp && p + 4 <= tmp) && pathlim == tmp) && tmp == p) || (((pathlim <= tmp && pathlim == tmp) && 1 == cond) && tmp == p) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((pathlim <= tmp && pathlim == tmp) && 1 == cond) && tmp == p - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 20 SDtfs, 32 SDslu, 31 SDs, 0 SdLazy, 46 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=2, 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, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 15 NumberOfFragments, 44 HoareAnnotationTreeSize, 4 FomulaSimplifications, 31 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 27 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 49 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 2640 SizeOfPredicates, 28 NumberOfNonLiveVariables, 127 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 11/20 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...