./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loops/nec40_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/nec40_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 fffaea79f968c931abbf923bf574b15b9c605c6a ................................................................................................................................................................................................................................................................................................................................................................. 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 17:06:17,845 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 17:06:17,846 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 17:06:17,861 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 17:06:17,862 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 17:06:17,863 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 17:06:17,865 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 17:06:17,867 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 17:06:17,869 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 17:06:17,870 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 17:06:17,871 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 17:06:17,871 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 17:06:17,872 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 17:06:17,874 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 17:06:17,875 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 17:06:17,876 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 17:06:17,877 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 17:06:17,879 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 17:06:17,882 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 17:06:17,884 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 17:06:17,885 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 17:06:17,886 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 17:06:17,889 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 17:06:17,890 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 17:06:17,890 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 17:06:17,891 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 17:06:17,892 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 17:06:17,894 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 17:06:17,895 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 17:06:17,896 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 17:06:17,897 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 17:06:17,897 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 17:06:17,898 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 17:06:17,898 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 17:06:17,900 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 17:06:17,900 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 17:06:17,901 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-14 17:06:17,918 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 17:06:17,919 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 17:06:17,920 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 17:06:17,920 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 17:06:17,920 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 17:06:17,920 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 17:06:17,921 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 17:06:17,921 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 17:06:17,921 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 17:06:17,921 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 17:06:17,921 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 17:06:17,922 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 17:06:17,922 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 17:06:17,922 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 17:06:17,922 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 17:06:17,922 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 17:06:17,923 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 17:06:17,923 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 17:06:17,923 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 17:06:17,923 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 17:06:17,923 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 17:06:17,923 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 17:06:17,924 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 17:06:17,925 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 17:06:17,925 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 17:06:17,925 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 17:06:17,925 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 17:06:17,926 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 -> fffaea79f968c931abbf923bf574b15b9c605c6a [2019-01-14 17:06:17,993 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 17:06:18,011 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 17:06:18,019 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 17:06:18,020 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 17:06:18,021 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 17:06:18,021 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/nec40_true-unreach-call_true-termination.i [2019-01-14 17:06:18,083 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faa7db49d/4dd9ef3eb29e401bafbdffe7a1dbffc5/FLAG650e3b7e1 [2019-01-14 17:06:18,520 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 17:06:18,521 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/nec40_true-unreach-call_true-termination.i [2019-01-14 17:06:18,526 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faa7db49d/4dd9ef3eb29e401bafbdffe7a1dbffc5/FLAG650e3b7e1 [2019-01-14 17:06:18,872 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faa7db49d/4dd9ef3eb29e401bafbdffe7a1dbffc5 [2019-01-14 17:06:18,878 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 17:06:18,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 17:06:18,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 17:06:18,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 17:06:18,890 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 17:06:18,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:06:18" (1/1) ... [2019-01-14 17:06:18,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38fc82f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:18, skipping insertion in model container [2019-01-14 17:06:18,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:06:18" (1/1) ... [2019-01-14 17:06:18,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 17:06:18,923 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 17:06:19,105 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:06:19,142 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 17:06:19,162 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:06:19,222 INFO L195 MainTranslator]: Completed translation [2019-01-14 17:06:19,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:19 WrapperNode [2019-01-14 17:06:19,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 17:06:19,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 17:06:19,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 17:06:19,224 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 17:06:19,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:19" (1/1) ... [2019-01-14 17:06:19,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:19" (1/1) ... [2019-01-14 17:06:19,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 17:06:19,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 17:06:19,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 17:06:19,290 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 17:06:19,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:19" (1/1) ... [2019-01-14 17:06:19,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:19" (1/1) ... [2019-01-14 17:06:19,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:19" (1/1) ... [2019-01-14 17:06:19,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:19" (1/1) ... [2019-01-14 17:06:19,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:19" (1/1) ... [2019-01-14 17:06:19,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:19" (1/1) ... [2019-01-14 17:06:19,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:19" (1/1) ... [2019-01-14 17:06:19,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 17:06:19,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 17:06:19,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 17:06:19,416 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 17:06:19,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:19" (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 17:06:19,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-14 17:06:19,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 17:06:19,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 17:06:19,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-14 17:06:19,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-14 17:06:19,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 17:06:20,024 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 17:06:20,024 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-14 17:06:20,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:06:20 BoogieIcfgContainer [2019-01-14 17:06:20,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 17:06:20,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 17:06:20,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 17:06:20,030 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 17:06:20,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 05:06:18" (1/3) ... [2019-01-14 17:06:20,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a10ec08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:06:20, skipping insertion in model container [2019-01-14 17:06:20,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:06:19" (2/3) ... [2019-01-14 17:06:20,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a10ec08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:06:20, skipping insertion in model container [2019-01-14 17:06:20,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:06:20" (3/3) ... [2019-01-14 17:06:20,033 INFO L112 eAbstractionObserver]: Analyzing ICFG nec40_true-unreach-call_true-termination.i [2019-01-14 17:06:20,051 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 17:06:20,067 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-14 17:06:20,087 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-14 17:06:20,118 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 17:06:20,119 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 17:06:20,119 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 17:06:20,119 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 17:06:20,120 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 17:06:20,120 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 17:06:20,120 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 17:06:20,120 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 17:06:20,120 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 17:06:20,135 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-01-14 17:06:20,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-14 17:06:20,142 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:06:20,144 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:06:20,146 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:06:20,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:06:20,152 INFO L82 PathProgramCache]: Analyzing trace with hash 383725322, now seen corresponding path program 1 times [2019-01-14 17:06:20,155 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:06:20,155 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:06:20,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:06:20,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:06:20,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:06:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:06:20,436 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 17:06:20,438 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 17:06:20,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 17:06:20,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-01-14 17:06:20,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-01-14 17:06:20,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-14 17:06:20,456 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2019-01-14 17:06:20,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:06:20,470 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2019-01-14 17:06:20,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-14 17:06:20,471 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-01-14 17:06:20,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:06:20,482 INFO L225 Difference]: With dead ends: 24 [2019-01-14 17:06:20,482 INFO L226 Difference]: Without dead ends: 10 [2019-01-14 17:06:20,486 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-14 17:06:20,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-01-14 17:06:20,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-01-14 17:06:20,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-01-14 17:06:20,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-01-14 17:06:20,520 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2019-01-14 17:06:20,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:06:20,521 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-01-14 17:06:20,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-01-14 17:06:20,521 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-01-14 17:06:20,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-14 17:06:20,522 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:06:20,522 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:06:20,522 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:06:20,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:06:20,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1213354159, now seen corresponding path program 1 times [2019-01-14 17:06:20,523 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:06:20,523 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:06:20,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:06:20,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:06:20,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:06:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:06:20,672 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 17:06:20,672 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 17:06:20,673 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 17:06:20,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 17:06:20,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 17:06:20,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 17:06:20,675 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 3 states. [2019-01-14 17:06:20,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:06:20,802 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-01-14 17:06:20,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 17:06:20,803 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-01-14 17:06:20,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:06:20,803 INFO L225 Difference]: With dead ends: 18 [2019-01-14 17:06:20,804 INFO L226 Difference]: Without dead ends: 12 [2019-01-14 17:06:20,805 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 17:06:20,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-01-14 17:06:20,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-01-14 17:06:20,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-01-14 17:06:20,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-01-14 17:06:20,810 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2019-01-14 17:06:20,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:06:20,811 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-01-14 17:06:20,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 17:06:20,812 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-01-14 17:06:20,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-14 17:06:20,813 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:06:20,813 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:06:20,813 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:06:20,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:06:20,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1626878186, now seen corresponding path program 1 times [2019-01-14 17:06:20,814 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:06:20,814 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:06:20,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:06:20,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:06:20,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:06:20,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:06:21,357 WARN L181 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 9 [2019-01-14 17:06:21,524 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 17:06:21,524 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 17:06:21,525 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 17:06:21,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:06:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:06:21,660 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:06:21,759 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2019-01-14 17:06:21,764 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2019-01-14 17:06:21,765 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-14 17:06:21,770 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 17:06:21,772 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-14 17:06:21,772 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2019-01-14 17:06:21,794 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:06:21,813 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-14 17:06:21,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2019-01-14 17:06:21,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-14 17:06:21,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-14 17:06:21,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-01-14 17:06:21,815 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 8 states. [2019-01-14 17:06:21,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:06:21,970 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-01-14 17:06:21,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 17:06:21,971 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-01-14 17:06:21,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:06:21,971 INFO L225 Difference]: With dead ends: 12 [2019-01-14 17:06:21,971 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 17:06:21,972 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-01-14 17:06:21,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 17:06:21,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 17:06:21,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 17:06:21,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 17:06:21,973 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-01-14 17:06:21,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:06:21,973 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 17:06:21,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-14 17:06:21,974 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 17:06:21,974 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 17:06:21,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-14 17:06:22,064 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-14 17:06:22,065 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 26) no Hoare annotation was computed. [2019-01-14 17:06:22,065 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-01-14 17:06:22,065 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-01-14 17:06:22,065 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-14 17:06:22,065 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-14 17:06:22,066 INFO L451 ceAbstractionStarter]: At program point L28(lines 14 29) the Hoare annotation is: true [2019-01-14 17:06:22,066 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2019-01-14 17:06:22,066 INFO L451 ceAbstractionStarter]: At program point L24-1(lines 24 26) the Hoare annotation is: true [2019-01-14 17:06:22,066 INFO L448 ceAbstractionStarter]: For program point L18-1(lines 18 21) no Hoare annotation was computed. [2019-01-14 17:06:22,066 INFO L444 ceAbstractionStarter]: At program point L18-3(lines 18 21) the Hoare annotation is: (and (= ~i~0 0) (= 0 |~#x~0.offset|) (= 0 (select (select |#memory_int| |~#x~0.base|) |~#x~0.offset|))) [2019-01-14 17:06:22,066 INFO L448 ceAbstractionStarter]: For program point L18-4(lines 18 21) no Hoare annotation was computed. [2019-01-14 17:06:22,067 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-01-14 17:06:22,067 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-01-14 17:06:22,072 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-01-14 17:06:22,077 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-01-14 17:06:22,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 05:06:22 BoogieIcfgContainer [2019-01-14 17:06:22,079 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 17:06:22,080 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 17:06:22,080 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 17:06:22,080 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 17:06:22,081 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:06:20" (3/4) ... [2019-01-14 17:06:22,085 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 17:06:22,099 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-01-14 17:06:22,099 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-14 17:06:22,209 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 17:06:22,211 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 17:06:22,212 INFO L168 Benchmark]: Toolchain (without parser) took 3334.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 946.0 MB in the beginning and 1.0 GB in the end (delta: -68.4 MB). Peak memory consumption was 79.9 MB. Max. memory is 11.5 GB. [2019-01-14 17:06:22,213 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:06:22,214 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.65 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 17:06:22,214 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.04 ms. Allocated memory is still 1.0 GB. Free memory was 935.3 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-14 17:06:22,216 INFO L168 Benchmark]: Boogie Preprocessor took 121.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -206.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2019-01-14 17:06:22,217 INFO L168 Benchmark]: RCFGBuilder took 613.45 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: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. [2019-01-14 17:06:22,217 INFO L168 Benchmark]: TraceAbstraction took 2053.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 84.7 MB). Peak memory consumption was 84.7 MB. Max. memory is 11.5 GB. [2019-01-14 17:06:22,217 INFO L168 Benchmark]: Witness Printer took 131.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-01-14 17:06:22,220 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 338.65 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.3 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 66.04 ms. Allocated memory is still 1.0 GB. Free memory was 935.3 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 121.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -206.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 613.45 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: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2053.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 84.7 MB). Peak memory consumption was 84.7 MB. Max. memory is 11.5 GB. * Witness Printer took 131.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * 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 [2019-01-14 17:06:22,230 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-01-14 17:06:22,230 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (i == 0 && 0 == x) && 0 == unknown-#memory_int-unknown[x][x] - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 25 SDtfs, 3 SDslu, 5 SDs, 0 SdLazy, 9 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 16 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 5 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 1127 SizeOfPredicates, 4 NumberOfNonLiveVariables, 455 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...