./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-invgen/id_build_true-unreach-call.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e 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/loop-invgen/id_build_true-unreach-call.i.v+lhb-reducer.c -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 3a2a393a9ddf4e804da7e673ce8e35167b1ee471 .............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 18:21:34,890 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:21:34,891 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:21:34,904 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:21:34,905 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:21:34,906 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:21:34,907 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:21:34,910 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:21:34,912 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:21:34,913 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:21:34,913 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:21:34,914 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:21:34,915 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:21:34,916 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:21:34,918 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:21:34,918 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:21:34,919 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:21:34,922 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:21:34,924 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:21:34,925 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:21:34,926 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:21:34,928 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:21:34,931 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:21:34,931 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:21:34,931 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:21:34,933 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:21:34,934 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:21:34,935 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:21:34,936 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:21:34,937 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:21:34,938 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:21:34,938 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:21:34,939 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:21:34,939 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:21:34,940 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:21:34,941 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:21:34,941 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:21:34,957 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:21:34,957 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:21:34,958 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:21:34,958 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:21:34,960 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:21:34,960 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:21:34,960 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:21:34,960 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:21:34,960 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:21:34,961 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:21:34,961 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:21:34,961 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:21:34,961 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:21:34,961 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:21:34,961 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:21:34,963 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:21:34,963 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:21:34,963 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:21:34,963 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:21:34,964 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:21:34,964 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:21:34,964 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:21:34,964 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:21:34,964 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:21:34,966 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:21:34,966 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:21:34,966 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:21:34,966 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:21:34,966 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:21:34,967 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:21:34,967 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 -> 3a2a393a9ddf4e804da7e673ce8e35167b1ee471 [2018-11-28 18:21:35,017 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:21:35,035 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:21:35,041 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:21:35,043 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:21:35,043 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:21:35,044 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-invgen/id_build_true-unreach-call.i.v+lhb-reducer.c [2018-11-28 18:21:35,108 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/861063800/b52d11272c3446b0b28a122a65602045/FLAG14ced2f7e [2018-11-28 18:21:35,561 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:21:35,564 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-invgen/id_build_true-unreach-call.i.v+lhb-reducer.c [2018-11-28 18:21:35,572 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/861063800/b52d11272c3446b0b28a122a65602045/FLAG14ced2f7e [2018-11-28 18:21:35,895 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/861063800/b52d11272c3446b0b28a122a65602045 [2018-11-28 18:21:35,898 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:21:35,900 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:21:35,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:21:35,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:21:35,905 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:21:35,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:21:35" (1/1) ... [2018-11-28 18:21:35,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e78fa9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:35, skipping insertion in model container [2018-11-28 18:21:35,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:21:35" (1/1) ... [2018-11-28 18:21:35,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:21:35,948 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:21:36,151 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:21:36,157 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:21:36,177 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:21:36,193 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:21:36,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:36 WrapperNode [2018-11-28 18:21:36,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:21:36,195 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:21:36,195 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:21:36,195 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:21:36,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:36" (1/1) ... [2018-11-28 18:21:36,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:36" (1/1) ... [2018-11-28 18:21:36,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:21:36,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:21:36,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:21:36,222 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:21:36,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:36" (1/1) ... [2018-11-28 18:21:36,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:36" (1/1) ... [2018-11-28 18:21:36,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:36" (1/1) ... [2018-11-28 18:21:36,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:36" (1/1) ... [2018-11-28 18:21:36,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:36" (1/1) ... [2018-11-28 18:21:36,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:36" (1/1) ... [2018-11-28 18:21:36,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:36" (1/1) ... [2018-11-28 18:21:36,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:21:36,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:21:36,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:21:36,249 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:21:36,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:36" (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 [2018-11-28 18:21:36,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:21:36,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:21:36,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:21:36,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:21:36,385 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:21:36,385 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:21:36,735 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:21:36,736 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 18:21:36,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:21:36 BoogieIcfgContainer [2018-11-28 18:21:36,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:21:36,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:21:36,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:21:36,742 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:21:36,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:21:35" (1/3) ... [2018-11-28 18:21:36,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3165c608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:21:36, skipping insertion in model container [2018-11-28 18:21:36,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:36" (2/3) ... [2018-11-28 18:21:36,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3165c608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:21:36, skipping insertion in model container [2018-11-28 18:21:36,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:21:36" (3/3) ... [2018-11-28 18:21:36,746 INFO L112 eAbstractionObserver]: Analyzing ICFG id_build_true-unreach-call.i.v+lhb-reducer.c [2018-11-28 18:21:36,757 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:21:36,766 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-28 18:21:36,782 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-28 18:21:36,814 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:21:36,815 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:21:36,815 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:21:36,816 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:21:36,816 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:21:36,816 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:21:36,816 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:21:36,816 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:21:36,816 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:21:36,836 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-28 18:21:36,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 18:21:36,843 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:21:36,844 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:21:36,846 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:21:36,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:21:36,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1077508024, now seen corresponding path program 1 times [2018-11-28 18:21:36,855 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:21:36,856 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:21:36,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:21:36,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:21:36,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:21:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:21:37,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:21:37,076 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:21:37,077 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 18:21:37,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 18:21:37,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 18:21:37,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 18:21:37,096 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 4 states. [2018-11-28 18:21:37,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:21:37,217 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2018-11-28 18:21:37,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 18:21:37,220 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-28 18:21:37,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:21:37,230 INFO L225 Difference]: With dead ends: 30 [2018-11-28 18:21:37,231 INFO L226 Difference]: Without dead ends: 18 [2018-11-28 18:21:37,235 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 [2018-11-28 18:21:37,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-28 18:21:37,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-28 18:21:37,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 18:21:37,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-28 18:21:37,283 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 10 [2018-11-28 18:21:37,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:21:37,285 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-28 18:21:37,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 18:21:37,286 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-28 18:21:37,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 18:21:37,286 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:21:37,288 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:21:37,289 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:21:37,289 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:21:37,290 INFO L82 PathProgramCache]: Analyzing trace with hash 398186682, now seen corresponding path program 1 times [2018-11-28 18:21:37,290 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:21:37,290 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:21:37,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:21:37,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:21:37,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:21:37,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:21:37,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:21:37,600 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:21:37,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 18:21:37,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 18:21:37,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 18:21:37,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 18:21:37,604 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 6 states. [2018-11-28 18:21:38,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:21:38,020 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2018-11-28 18:21:38,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 18:21:38,021 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-11-28 18:21:38,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:21:38,022 INFO L225 Difference]: With dead ends: 19 [2018-11-28 18:21:38,022 INFO L226 Difference]: Without dead ends: 17 [2018-11-28 18:21:38,023 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-11-28 18:21:38,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-28 18:21:38,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2018-11-28 18:21:38,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-28 18:21:38,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2018-11-28 18:21:38,027 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2018-11-28 18:21:38,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:21:38,028 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-11-28 18:21:38,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 18:21:38,028 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-11-28 18:21:38,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 18:21:38,029 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:21:38,029 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:21:38,029 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:21:38,030 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:21:38,030 INFO L82 PathProgramCache]: Analyzing trace with hash 405408254, now seen corresponding path program 1 times [2018-11-28 18:21:38,030 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:21:38,030 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:21:38,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:21:38,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:21:38,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:21:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:21:38,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:21:38,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:21:38,144 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 18:21:38,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 18:21:38,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 18:21:38,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 18:21:38,145 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 5 states. [2018-11-28 18:21:38,370 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 12 [2018-11-28 18:21:38,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:21:38,478 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2018-11-28 18:21:38,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 18:21:38,479 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-11-28 18:21:38,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:21:38,480 INFO L225 Difference]: With dead ends: 25 [2018-11-28 18:21:38,480 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:21:38,483 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-28 18:21:38,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:21:38,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:21:38,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:21:38,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:21:38,485 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-28 18:21:38,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:21:38,485 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:21:38,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 18:21:38,485 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:21:38,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:21:38,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:21:38,527 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 18:21:38,595 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:21:38,595 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:21:38,595 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:21:38,595 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:21:38,596 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 18:21:38,596 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:21:38,596 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:21:38,596 INFO L444 ceAbstractionStarter]: At program point L64(lines 34 84) the Hoare annotation is: (and (<= 0 main_~main__i~0) (= main_~__VERIFIER_assert__cond~0 1) (<= (+ main_~main__i~0 1) main_~main__nlen~0)) [2018-11-28 18:21:38,596 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 8 97) no Hoare annotation was computed. [2018-11-28 18:21:38,597 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 91) no Hoare annotation was computed. [2018-11-28 18:21:38,597 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 8 97) no Hoare annotation was computed. [2018-11-28 18:21:38,597 INFO L448 ceAbstractionStarter]: For program point L71(lines 71 80) no Hoare annotation was computed. [2018-11-28 18:21:38,597 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2018-11-28 18:21:38,597 INFO L448 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2018-11-28 18:21:38,597 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 8 97) the Hoare annotation is: true [2018-11-28 18:21:38,598 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 84) no Hoare annotation was computed. [2018-11-28 18:21:38,598 INFO L448 ceAbstractionStarter]: For program point L59(line 59) no Hoare annotation was computed. [2018-11-28 18:21:38,598 INFO L444 ceAbstractionStarter]: At program point L90(lines 9 97) the Hoare annotation is: (<= 0 main_~main__i~0) [2018-11-28 18:21:38,598 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 65) no Hoare annotation was computed. [2018-11-28 18:21:38,598 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2018-11-28 18:21:38,598 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-28 18:21:38,599 INFO L444 ceAbstractionStarter]: At program point L74(lines 47 82) the Hoare annotation is: (and (<= 0 main_~main__i~0) (= main_~__VERIFIER_assert__cond~0 1) (<= (+ main_~main__i~0 1) main_~main__nlen~0) (not (= 0 main_~__VERIFIER_assert__cond~1))) [2018-11-28 18:21:38,599 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed. [2018-11-28 18:21:38,599 INFO L448 ceAbstractionStarter]: For program point L41(lines 41 82) no Hoare annotation was computed. [2018-11-28 18:21:38,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:21:38 BoogieIcfgContainer [2018-11-28 18:21:38,615 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:21:38,616 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:21:38,616 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:21:38,616 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:21:38,617 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:21:36" (3/4) ... [2018-11-28 18:21:38,621 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 18:21:38,628 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 18:21:38,629 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 18:21:38,634 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-28 18:21:38,635 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 18:21:38,698 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:21:38,698 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:21:38,699 INFO L168 Benchmark]: Toolchain (without parser) took 2800.23 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 951.3 MB in the beginning and 1.0 GB in the end (delta: -64.3 MB). Peak memory consumption was 43.2 MB. Max. memory is 11.5 GB. [2018-11-28 18:21:38,700 INFO L168 Benchmark]: CDTParser took 0.45 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. [2018-11-28 18:21:38,701 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.22 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:21:38,701 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.89 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:21:38,702 INFO L168 Benchmark]: Boogie Preprocessor took 26.47 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:21:38,702 INFO L168 Benchmark]: RCFGBuilder took 488.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -139.0 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-11-28 18:21:38,703 INFO L168 Benchmark]: TraceAbstraction took 1877.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 11.5 GB. [2018-11-28 18:21:38,704 INFO L168 Benchmark]: Witness Printer took 82.21 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:21:38,707 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 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 293.22 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.89 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.47 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 488.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -139.0 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1877.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 11.5 GB. * Witness Printer took 82.21 ms. Allocated memory is still 1.1 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: 43]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 59]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 30]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 0 <= main__i - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((0 <= main__i && __VERIFIER_assert__cond == 1) && main__i + 1 <= main__nlen) && !(0 == __VERIFIER_assert__cond) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (0 <= main__i && __VERIFIER_assert__cond == 1) && main__i + 1 <= main__nlen - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 3 error locations. SAFE Result, 1.7s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 41 SDtfs, 70 SDslu, 53 SDs, 0 SdLazy, 62 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 10 NumberOfFragments, 35 HoareAnnotationTreeSize, 7 FomulaSimplifications, 128 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 1085 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...