./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-acceleration/array_true-unreach-call1_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/loop-acceleration/array_true-unreach-call1_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 60e6b615607c81d5d8be3edb90a3b8bafc35bf36 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-12 11:04:30,995 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 11:04:30,997 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 11:04:31,013 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 11:04:31,014 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 11:04:31,016 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 11:04:31,017 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 11:04:31,019 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 11:04:31,022 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 11:04:31,023 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 11:04:31,025 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 11:04:31,026 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 11:04:31,027 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 11:04:31,028 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 11:04:31,029 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 11:04:31,038 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 11:04:31,039 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 11:04:31,041 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 11:04:31,045 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 11:04:31,049 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 11:04:31,050 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 11:04:31,052 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 11:04:31,056 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 11:04:31,058 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 11:04:31,058 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 11:04:31,058 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 11:04:31,060 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 11:04:31,060 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 11:04:31,063 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 11:04:31,065 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 11:04:31,066 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 11:04:31,067 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 11:04:31,067 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 11:04:31,067 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 11:04:31,068 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 11:04:31,070 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 11:04:31,073 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 11:04:31,096 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 11:04:31,097 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 11:04:31,098 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 11:04:31,099 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 11:04:31,100 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 11:04:31,100 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 11:04:31,100 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 11:04:31,101 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 11:04:31,101 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 11:04:31,101 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 11:04:31,101 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 11:04:31,102 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 11:04:31,102 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 11:04:31,102 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 11:04:31,102 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 11:04:31,103 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 11:04:31,103 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 11:04:31,103 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 11:04:31,103 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 11:04:31,103 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 11:04:31,103 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 11:04:31,104 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 11:04:31,104 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 11:04:31,104 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 11:04:31,104 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 11:04:31,104 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 11:04:31,104 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 11:04:31,105 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 11:04:31,108 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 -> 60e6b615607c81d5d8be3edb90a3b8bafc35bf36 [2019-01-12 11:04:31,148 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 11:04:31,172 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 11:04:31,178 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 11:04:31,179 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 11:04:31,179 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 11:04:31,181 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-acceleration/array_true-unreach-call1_true-termination.i [2019-01-12 11:04:31,233 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa543efd2/4d238458eb4d4568a08e2cbff121a192/FLAG9648705dd [2019-01-12 11:04:31,658 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 11:04:31,659 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-acceleration/array_true-unreach-call1_true-termination.i [2019-01-12 11:04:31,663 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa543efd2/4d238458eb4d4568a08e2cbff121a192/FLAG9648705dd [2019-01-12 11:04:32,055 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa543efd2/4d238458eb4d4568a08e2cbff121a192 [2019-01-12 11:04:32,058 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 11:04:32,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 11:04:32,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 11:04:32,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 11:04:32,065 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 11:04:32,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 11:04:32" (1/1) ... [2019-01-12 11:04:32,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@104d3319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:04:32, skipping insertion in model container [2019-01-12 11:04:32,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 11:04:32" (1/1) ... [2019-01-12 11:04:32,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 11:04:32,092 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 11:04:32,306 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 11:04:32,312 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 11:04:32,333 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 11:04:32,358 INFO L195 MainTranslator]: Completed translation [2019-01-12 11:04:32,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:04:32 WrapperNode [2019-01-12 11:04:32,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 11:04:32,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 11:04:32,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 11:04:32,360 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 11:04:32,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:04:32" (1/1) ... [2019-01-12 11:04:32,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:04:32" (1/1) ... [2019-01-12 11:04:32,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 11:04:32,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 11:04:32,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 11:04:32,407 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 11:04:32,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:04:32" (1/1) ... [2019-01-12 11:04:32,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:04:32" (1/1) ... [2019-01-12 11:04:32,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:04:32" (1/1) ... [2019-01-12 11:04:32,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:04:32" (1/1) ... [2019-01-12 11:04:32,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:04:32" (1/1) ... [2019-01-12 11:04:32,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:04:32" (1/1) ... [2019-01-12 11:04:32,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:04:32" (1/1) ... [2019-01-12 11:04:32,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 11:04:32,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 11:04:32,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 11:04:32,437 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 11:04:32,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:04:32" (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 [2019-01-12 11:04:32,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-12 11:04:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 11:04:32,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 11:04:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-12 11:04:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-12 11:04:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-12 11:04:32,877 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 11:04:32,878 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-12 11:04:32,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 11:04:32 BoogieIcfgContainer [2019-01-12 11:04:32,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 11:04:32,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 11:04:32,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 11:04:32,883 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 11:04:32,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 11:04:32" (1/3) ... [2019-01-12 11:04:32,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@777addaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 11:04:32, skipping insertion in model container [2019-01-12 11:04:32,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:04:32" (2/3) ... [2019-01-12 11:04:32,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@777addaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 11:04:32, skipping insertion in model container [2019-01-12 11:04:32,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 11:04:32" (3/3) ... [2019-01-12 11:04:32,887 INFO L112 eAbstractionObserver]: Analyzing ICFG array_true-unreach-call1_true-termination.i [2019-01-12 11:04:32,897 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 11:04:32,904 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 11:04:32,930 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 11:04:32,992 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 11:04:32,993 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 11:04:32,993 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 11:04:32,993 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 11:04:32,993 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 11:04:32,993 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 11:04:32,994 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 11:04:32,994 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 11:04:32,994 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 11:04:33,008 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-01-12 11:04:33,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-12 11:04:33,014 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 11:04:33,015 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-12 11:04:33,017 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 11:04:33,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 11:04:33,023 INFO L82 PathProgramCache]: Analyzing trace with hash 889605037, now seen corresponding path program 1 times [2019-01-12 11:04:33,025 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 11:04:33,026 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 11:04:33,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:04:33,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 11:04:33,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:04:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 11:04:33,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 11:04:33,227 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 11:04:33,228 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 11:04:33,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 11:04:33,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 11:04:33,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 11:04:33,250 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2019-01-12 11:04:33,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 11:04:33,296 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2019-01-12 11:04:33,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 11:04:33,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-01-12 11:04:33,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 11:04:33,308 INFO L225 Difference]: With dead ends: 22 [2019-01-12 11:04:33,308 INFO L226 Difference]: Without dead ends: 10 [2019-01-12 11:04:33,311 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 [2019-01-12 11:04:33,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-01-12 11:04:33,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2019-01-12 11:04:33,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-01-12 11:04:33,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-01-12 11:04:33,344 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2019-01-12 11:04:33,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 11:04:33,345 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-01-12 11:04:33,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 11:04:33,345 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-01-12 11:04:33,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-12 11:04:33,346 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 11:04:33,346 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 11:04:33,346 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 11:04:33,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 11:04:33,347 INFO L82 PathProgramCache]: Analyzing trace with hash 265180975, now seen corresponding path program 1 times [2019-01-12 11:04:33,347 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 11:04:33,347 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 11:04:33,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:04:33,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 11:04:33,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:04:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 11:04:33,401 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 11:04:33,401 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-12 11:04:33,403 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 [2019-01-12 11:04:33,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 11:04:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 11:04:33,453 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 11:04:33,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 11:04:33,532 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-12 11:04:33,533 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-01-12 11:04:33,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-12 11:04:33,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-12 11:04:33,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-01-12 11:04:33,534 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2019-01-12 11:04:33,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 11:04:33,587 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-01-12 11:04:33,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-12 11:04:33,588 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-01-12 11:04:33,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 11:04:33,588 INFO L225 Difference]: With dead ends: 16 [2019-01-12 11:04:33,588 INFO L226 Difference]: Without dead ends: 12 [2019-01-12 11:04:33,589 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-01-12 11:04:33,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-01-12 11:04:33,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-01-12 11:04:33,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-01-12 11:04:33,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-01-12 11:04:33,595 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2019-01-12 11:04:33,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 11:04:33,595 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-01-12 11:04:33,595 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-12 11:04:33,595 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-01-12 11:04:33,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-12 11:04:33,596 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 11:04:33,596 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-01-12 11:04:33,597 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 11:04:33,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 11:04:33,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1489078833, now seen corresponding path program 2 times [2019-01-12 11:04:33,597 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 11:04:33,597 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 11:04:33,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:04:33,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 11:04:33,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:04:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 11:04:33,718 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 11:04:33,718 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-12 11:04:33,719 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-12 11:04:33,738 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-01-12 11:04:33,766 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-01-12 11:04:33,766 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-12 11:04:33,768 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 11:04:33,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 11:04:33,814 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-12 11:04:33,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-01-12 11:04:33,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-12 11:04:33,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-12 11:04:33,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-01-12 11:04:33,816 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 6 states. [2019-01-12 11:04:33,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 11:04:33,912 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-01-12 11:04:33,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-12 11:04:33,912 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-01-12 11:04:33,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 11:04:33,913 INFO L225 Difference]: With dead ends: 18 [2019-01-12 11:04:33,913 INFO L226 Difference]: Without dead ends: 14 [2019-01-12 11:04:33,914 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-01-12 11:04:33,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-01-12 11:04:33,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-01-12 11:04:33,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-01-12 11:04:33,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-01-12 11:04:33,918 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2019-01-12 11:04:33,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 11:04:33,918 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-01-12 11:04:33,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-12 11:04:33,918 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-01-12 11:04:33,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-01-12 11:04:33,919 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 11:04:33,919 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1] [2019-01-12 11:04:33,920 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 11:04:33,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 11:04:33,920 INFO L82 PathProgramCache]: Analyzing trace with hash 833881267, now seen corresponding path program 3 times [2019-01-12 11:04:33,920 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 11:04:33,920 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 11:04:33,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:04:33,922 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-12 11:04:33,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:04:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 11:04:34,099 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 11:04:34,099 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-12 11:04:34,099 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-12 11:04:34,115 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-12 11:04:34,133 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-01-12 11:04:34,133 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-12 11:04:34,135 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 11:04:34,184 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 12 [2019-01-12 11:04:34,198 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 12 treesize of output 11 [2019-01-12 11:04:34,198 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-12 11:04:34,213 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-12 11:04:34,244 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-12 11:04:34,245 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2019-01-12 11:04:34,363 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-01-12 11:04:34,384 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-12 11:04:34,384 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2019-01-12 11:04:34,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-01-12 11:04:34,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-01-12 11:04:34,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2019-01-12 11:04:34,385 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 10 states. [2019-01-12 11:04:36,960 WARN L181 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2019-01-12 11:04:36,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 11:04:36,962 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2019-01-12 11:04:36,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-01-12 11:04:36,962 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-01-12 11:04:36,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 11:04:36,962 INFO L225 Difference]: With dead ends: 18 [2019-01-12 11:04:36,964 INFO L226 Difference]: Without dead ends: 0 [2019-01-12 11:04:36,965 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2019-01-12 11:04:36,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-12 11:04:36,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-12 11:04:36,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-12 11:04:36,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-12 11:04:36,969 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-01-12 11:04:36,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 11:04:36,969 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-12 11:04:36,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-01-12 11:04:36,970 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-12 11:04:36,970 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-12 11:04:36,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-12 11:04:37,092 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-12 11:04:37,092 INFO L448 ceAbstractionStarter]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2019-01-12 11:04:37,093 INFO L444 ceAbstractionStarter]: At program point L11-3(lines 11 13) the Hoare annotation is: (or (exists ((v_ULTIMATE.start_main_~i~0_12 Int)) (and (= (select (select |#memory_int| |ULTIMATE.start_main_~#A~0.base|) (+ |ULTIMATE.start_main_~#A~0.offset| (* 4 v_ULTIMATE.start_main_~i~0_12))) v_ULTIMATE.start_main_~i~0_12) (< v_ULTIMATE.start_main_~i~0_12 1024) (<= ULTIMATE.start_main_~i~0 (+ v_ULTIMATE.start_main_~i~0_12 1)))) (= ULTIMATE.start_main_~i~0 0)) [2019-01-12 11:04:37,093 INFO L448 ceAbstractionStarter]: For program point L11-4(lines 11 13) no Hoare annotation was computed. [2019-01-12 11:04:37,093 INFO L448 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2019-01-12 11:04:37,093 INFO L451 ceAbstractionStarter]: At program point L3-2(lines 2 7) the Hoare annotation is: true [2019-01-12 11:04:37,093 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-01-12 11:04:37,094 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-12 11:04:37,094 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-12 11:04:37,094 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-01-12 11:04:37,094 INFO L448 ceAbstractionStarter]: For program point L8(lines 8 15) no Hoare annotation was computed. [2019-01-12 11:04:37,094 INFO L448 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2019-01-12 11:04:37,108 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-12 11:04:37,109 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-12 11:04:37,109 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-12 11:04:37,110 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-12 11:04:37,112 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-01-12 11:04:37,118 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-12 11:04:37,118 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-12 11:04:37,118 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-12 11:04:37,118 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-12 11:04:37,119 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-01-12 11:04:37,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 11:04:37 BoogieIcfgContainer [2019-01-12 11:04:37,124 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 11:04:37,124 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 11:04:37,124 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 11:04:37,125 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 11:04:37,125 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 11:04:32" (3/4) ... [2019-01-12 11:04:37,133 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-12 11:04:37,151 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-01-12 11:04:37,151 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-12 11:04:37,151 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-12 11:04:37,183 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_ULTIMATE.start_main_~i~0_12 : int :: (unknown-#memory_int-unknown[A][A + 4 * v_ULTIMATE.start_main_~i~0_12] == v_ULTIMATE.start_main_~i~0_12 && v_ULTIMATE.start_main_~i~0_12 < 1024) && i <= v_ULTIMATE.start_main_~i~0_12 + 1) || i == 0 [2019-01-12 11:04:37,198 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 11:04:37,198 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 11:04:37,199 INFO L168 Benchmark]: Toolchain (without parser) took 5139.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 947.3 MB in the beginning and 1.0 GB in the end (delta: -87.5 MB). Peak memory consumption was 71.4 MB. Max. memory is 11.5 GB. [2019-01-12 11:04:37,200 INFO L168 Benchmark]: CDTParser took 0.20 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. [2019-01-12 11:04:37,200 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.81 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 11:04:37,201 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.02 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 11:04:37,202 INFO L168 Benchmark]: Boogie Preprocessor took 30.57 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 11:04:37,202 INFO L168 Benchmark]: RCFGBuilder took 441.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -198.5 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2019-01-12 11:04:37,204 INFO L168 Benchmark]: TraceAbstraction took 4243.88 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: 100.3 MB). Peak memory consumption was 100.3 MB. Max. memory is 11.5 GB. [2019-01-12 11:04:37,204 INFO L168 Benchmark]: Witness Printer took 73.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 11:04:37,210 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 298.81 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 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 46.02 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.57 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 441.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -198.5 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4243.88 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: 100.3 MB). Peak memory consumption was 100.3 MB. Max. memory is 11.5 GB. * Witness Printer took 73.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] * 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: 4]: 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: 2]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant [2019-01-12 11:04:37,228 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-12 11:04:37,229 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-12 11:04:37,229 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-12 11:04:37,229 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-12 11:04:37,229 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-01-12 11:04:37,230 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-12 11:04:37,230 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-12 11:04:37,230 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-12 11:04:37,231 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-12 11:04:37,231 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (\exists v_ULTIMATE.start_main_~i~0_12 : int :: (unknown-#memory_int-unknown[A][A + 4 * v_ULTIMATE.start_main_~i~0_12] == v_ULTIMATE.start_main_~i~0_12 && v_ULTIMATE.start_main_~i~0_12 < 1024) && i <= v_ULTIMATE.start_main_~i~0_12 + 1) || i == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. SAFE Result, 4.1s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 2.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 10 SDslu, 37 SDs, 0 SdLazy, 59 SolverSat, 11 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 26 HoareAnnotationTreeSize, 2 FomulaSimplifications, 75 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 66 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 59 ConstructedInterpolants, 2 QuantifiedInterpolants, 1549 SizeOfPredicates, 9 NumberOfNonLiveVariables, 101 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 9/28 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...