./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-acceleration/underapprox_true-unreach-call1_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/loop-acceleration/underapprox_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 6a0edfd90480f917557019c272eaa2ec2221428a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 18:20:03,900 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:20:03,902 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:20:03,915 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:20:03,915 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:20:03,916 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:20:03,918 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:20:03,920 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:20:03,922 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:20:03,923 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:20:03,924 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:20:03,925 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:20:03,926 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:20:03,927 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:20:03,928 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:20:03,929 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:20:03,931 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:20:03,932 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:20:03,935 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:20:03,937 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:20:03,938 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:20:03,940 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:20:03,942 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:20:03,943 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:20:03,943 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:20:03,944 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:20:03,946 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:20:03,947 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:20:03,947 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:20:03,949 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:20:03,949 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:20:03,950 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:20:03,950 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:20:03,950 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:20:03,952 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:20:03,953 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:20:03,953 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:20:03,969 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:20:03,970 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:20:03,970 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:20:03,971 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:20:03,971 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:20:03,971 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:20:03,972 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:20:03,973 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:20:03,973 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:20:03,973 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:20:03,973 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:20:03,973 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:20:03,974 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:20:03,974 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:20:03,975 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:20:03,975 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:20:03,975 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:20:03,975 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:20:03,975 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:20:03,976 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:20:03,977 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:20:03,977 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:20:03,977 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:20:03,977 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:20:03,978 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:20:03,978 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:20:03,978 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:20:03,978 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:20:03,978 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:20:03,979 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:20:03,980 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 -> 6a0edfd90480f917557019c272eaa2ec2221428a [2018-11-28 18:20:04,018 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:20:04,035 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:20:04,042 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:20:04,044 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:20:04,044 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:20:04,045 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-acceleration/underapprox_true-unreach-call1_true-termination.i [2018-11-28 18:20:04,115 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ef8d794e/d8aad81f97484853af1a7fb7dfaf1027/FLAG9a59a9759 [2018-11-28 18:20:04,626 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:20:04,627 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-acceleration/underapprox_true-unreach-call1_true-termination.i [2018-11-28 18:20:04,633 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ef8d794e/d8aad81f97484853af1a7fb7dfaf1027/FLAG9a59a9759 [2018-11-28 18:20:04,976 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ef8d794e/d8aad81f97484853af1a7fb7dfaf1027 [2018-11-28 18:20:04,981 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:20:04,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:20:04,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:20:04,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:20:04,994 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:20:04,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:20:04" (1/1) ... [2018-11-28 18:20:05,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5df21129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:04, skipping insertion in model container [2018-11-28 18:20:05,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:20:04" (1/1) ... [2018-11-28 18:20:05,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:20:05,027 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:20:05,236 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:20:05,243 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:20:05,263 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:20:05,283 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:20:05,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:05 WrapperNode [2018-11-28 18:20:05,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:20:05,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:20:05,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:20:05,285 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:20:05,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:05" (1/1) ... [2018-11-28 18:20:05,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:05" (1/1) ... [2018-11-28 18:20:05,310 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:20:05,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:20:05,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:20:05,311 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:20:05,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:05" (1/1) ... [2018-11-28 18:20:05,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:05" (1/1) ... [2018-11-28 18:20:05,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:05" (1/1) ... [2018-11-28 18:20:05,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:05" (1/1) ... [2018-11-28 18:20:05,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:05" (1/1) ... [2018-11-28 18:20:05,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:05" (1/1) ... [2018-11-28 18:20:05,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:05" (1/1) ... [2018-11-28 18:20:05,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:20:05,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:20:05,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:20:05,342 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:20:05,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:20:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:20:05,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:20:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:20:05,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:20:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:20:05,492 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:20:05,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 18:20:05,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 18:20:05,711 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:20:05,712 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 18:20:05,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:20:05 BoogieIcfgContainer [2018-11-28 18:20:05,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:20:05,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:20:05,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:20:05,717 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:20:05,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:20:04" (1/3) ... [2018-11-28 18:20:05,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef2b3ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:20:05, skipping insertion in model container [2018-11-28 18:20:05,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:20:05" (2/3) ... [2018-11-28 18:20:05,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef2b3ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:20:05, skipping insertion in model container [2018-11-28 18:20:05,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:20:05" (3/3) ... [2018-11-28 18:20:05,720 INFO L112 eAbstractionObserver]: Analyzing ICFG underapprox_true-unreach-call1_true-termination.i [2018-11-28 18:20:05,730 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:20:05,738 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:20:05,753 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:20:05,786 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:20:05,787 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:20:05,787 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:20:05,788 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:20:05,788 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:20:05,788 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:20:05,788 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:20:05,788 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:20:05,788 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:20:05,808 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-28 18:20:05,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 18:20:05,814 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:20:05,815 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:20:05,818 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:20:05,826 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:20:05,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1846144830, now seen corresponding path program 1 times [2018-11-28 18:20:05,830 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:20:05,830 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:20:05,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:20:05,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:20:05,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:20:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:20:06,174 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 5 [2018-11-28 18:20:06,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:20:06,180 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:20:06,181 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 18:20:06,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 18:20:06,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 18:20:06,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:20:06,207 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2018-11-28 18:20:06,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:20:06,254 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2018-11-28 18:20:06,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 18:20:06,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-28 18:20:06,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:20:06,264 INFO L225 Difference]: With dead ends: 29 [2018-11-28 18:20:06,265 INFO L226 Difference]: Without dead ends: 12 [2018-11-28 18:20:06,268 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:20:06,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-28 18:20:06,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-28 18:20:06,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-28 18:20:06,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-11-28 18:20:06,305 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-11-28 18:20:06,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:20:06,306 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-11-28 18:20:06,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 18:20:06,306 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-11-28 18:20:06,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 18:20:06,307 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:20:06,307 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:20:06,308 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:20:06,310 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:20:06,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1432376145, now seen corresponding path program 1 times [2018-11-28 18:20:06,310 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:20:06,311 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:20:06,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:20:06,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:20:06,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:20:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:20:06,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:20:06,450 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 18:20:06,450 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 [2018-11-28 18:20:06,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:20:06,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:20:06,501 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:20:06,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:20:06,601 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 18:20:06,601 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-11-28 18:20:06,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 18:20:06,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 18:20:06,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 18:20:06,606 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 5 states. [2018-11-28 18:20:06,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:20:06,630 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-11-28 18:20:06,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 18:20:06,631 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-28 18:20:06,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:20:06,632 INFO L225 Difference]: With dead ends: 18 [2018-11-28 18:20:06,632 INFO L226 Difference]: Without dead ends: 13 [2018-11-28 18:20:06,633 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 18:20:06,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-11-28 18:20:06,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-11-28 18:20:06,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-28 18:20:06,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-11-28 18:20:06,638 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2018-11-28 18:20:06,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:20:06,639 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-11-28 18:20:06,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 18:20:06,639 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-11-28 18:20:06,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 18:20:06,641 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:20:06,641 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:20:06,641 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:20:06,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:20:06,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1490448798, now seen corresponding path program 2 times [2018-11-28 18:20:06,642 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:20:06,642 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:20:06,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:20:06,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:20:06,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:20:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:20:06,898 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:20:06,899 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 18:20:06,899 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 [2018-11-28 18:20:06,910 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 18:20:06,956 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 18:20:06,956 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 18:20:06,958 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:20:07,125 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:20:07,144 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 18:20:07,144 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-11-28 18:20:07,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 18:20:07,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 18:20:07,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-28 18:20:07,146 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 6 states. [2018-11-28 18:20:07,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:20:07,256 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-11-28 18:20:07,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 18:20:07,257 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-11-28 18:20:07,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:20:07,257 INFO L225 Difference]: With dead ends: 19 [2018-11-28 18:20:07,258 INFO L226 Difference]: Without dead ends: 14 [2018-11-28 18:20:07,258 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-28 18:20:07,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-28 18:20:07,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-28 18:20:07,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-28 18:20:07,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-11-28 18:20:07,263 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2018-11-28 18:20:07,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:20:07,263 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-11-28 18:20:07,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 18:20:07,263 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-11-28 18:20:07,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 18:20:07,264 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:20:07,264 INFO L402 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:20:07,265 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:20:07,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:20:07,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1004266255, now seen corresponding path program 3 times [2018-11-28 18:20:07,265 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:20:07,265 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:20:07,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:20:07,267 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 18:20:07,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:20:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:20:07,435 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:20:07,436 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 18:20:07,436 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 [2018-11-28 18:20:07,445 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-28 18:20:07,465 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-28 18:20:07,465 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 18:20:07,467 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:20:07,592 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:20:07,611 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 18:20:07,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-11-28 18:20:07,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:20:07,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:20:07,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:20:07,613 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 7 states. [2018-11-28 18:20:07,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:20:07,692 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2018-11-28 18:20:07,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 18:20:07,694 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-11-28 18:20:07,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:20:07,695 INFO L225 Difference]: With dead ends: 20 [2018-11-28 18:20:07,695 INFO L226 Difference]: Without dead ends: 15 [2018-11-28 18:20:07,695 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:20:07,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-28 18:20:07,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-28 18:20:07,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-28 18:20:07,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-11-28 18:20:07,700 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2018-11-28 18:20:07,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:20:07,700 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-11-28 18:20:07,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:20:07,700 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-11-28 18:20:07,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 18:20:07,701 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:20:07,701 INFO L402 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:20:07,702 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:20:07,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:20:07,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1031021570, now seen corresponding path program 4 times [2018-11-28 18:20:07,702 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:20:07,702 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:20:07,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:20:07,703 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 18:20:07,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:20:07,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:20:07,910 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:20:07,910 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 18:20:07,910 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 18:20:07,923 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-28 18:20:07,933 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-28 18:20:07,934 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 18:20:07,935 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:20:07,987 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:20:08,007 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 18:20:08,007 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2018-11-28 18:20:08,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 18:20:08,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 18:20:08,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-28 18:20:08,009 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 8 states. [2018-11-28 18:20:08,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:20:08,156 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-11-28 18:20:08,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 18:20:08,161 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2018-11-28 18:20:08,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:20:08,162 INFO L225 Difference]: With dead ends: 21 [2018-11-28 18:20:08,162 INFO L226 Difference]: Without dead ends: 16 [2018-11-28 18:20:08,163 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-28 18:20:08,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-28 18:20:08,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-28 18:20:08,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-28 18:20:08,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-11-28 18:20:08,168 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2018-11-28 18:20:08,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:20:08,170 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-11-28 18:20:08,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 18:20:08,170 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-28 18:20:08,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 18:20:08,171 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:20:08,171 INFO L402 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:20:08,171 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:20:08,171 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:20:08,171 INFO L82 PathProgramCache]: Analyzing trace with hash -1860436335, now seen corresponding path program 5 times [2018-11-28 18:20:08,173 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:20:08,173 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:20:08,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:20:08,175 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 18:20:08,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:20:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:20:08,660 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:20:08,660 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 18:20:08,661 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 18:20:08,672 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-11-28 18:20:08,693 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-11-28 18:20:08,693 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 18:20:08,696 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:20:08,730 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:20:08,749 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 18:20:08,750 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2018-11-28 18:20:08,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 18:20:08,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 18:20:08,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-28 18:20:08,751 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 9 states. [2018-11-28 18:20:08,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:20:08,818 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-11-28 18:20:08,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 18:20:08,820 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2018-11-28 18:20:08,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:20:08,821 INFO L225 Difference]: With dead ends: 22 [2018-11-28 18:20:08,822 INFO L226 Difference]: Without dead ends: 17 [2018-11-28 18:20:08,822 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-28 18:20:08,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-28 18:20:08,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-28 18:20:08,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-28 18:20:08,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-11-28 18:20:08,827 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2018-11-28 18:20:08,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:20:08,827 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-11-28 18:20:08,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 18:20:08,828 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-11-28 18:20:08,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-28 18:20:08,828 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:20:08,829 INFO L402 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:20:08,829 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:20:08,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:20:08,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1802490274, now seen corresponding path program 6 times [2018-11-28 18:20:08,829 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:20:08,830 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:20:08,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:20:08,833 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 18:20:08,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:20:08,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:20:22,563 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 17 refuted. 4 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:20:22,564 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 18:20:22,564 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 18:20:22,585 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-11-28 18:20:22,603 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2018-11-28 18:20:22,603 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 18:20:22,606 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:20:23,358 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 19 [2018-11-28 18:20:23,423 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:20:23,444 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 18:20:23,444 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2018-11-28 18:20:23,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-28 18:20:23,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-28 18:20:23,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=289, Unknown=6, NotChecked=0, Total=342 [2018-11-28 18:20:23,445 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 19 states. [2018-11-28 18:20:23,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:20:23,730 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2018-11-28 18:20:23,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-28 18:20:23,732 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 16 [2018-11-28 18:20:23,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:20:23,733 INFO L225 Difference]: With dead ends: 27 [2018-11-28 18:20:23,733 INFO L226 Difference]: Without dead ends: 19 [2018-11-28 18:20:23,734 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=58, Invalid=356, Unknown=6, NotChecked=0, Total=420 [2018-11-28 18:20:23,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-28 18:20:23,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-28 18:20:23,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-28 18:20:23,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-11-28 18:20:23,738 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 16 [2018-11-28 18:20:23,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:20:23,739 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-11-28 18:20:23,739 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-28 18:20:23,739 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-11-28 18:20:23,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 18:20:23,740 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:20:23,740 INFO L402 BasicCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:20:23,740 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:20:23,740 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:20:23,740 INFO L82 PathProgramCache]: Analyzing trace with hash -154572610, now seen corresponding path program 7 times [2018-11-28 18:20:23,740 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:20:23,741 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:20:23,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:20:23,742 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 18:20:23,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:20:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:20:24,066 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 18:20:24,067 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 18:20:24,067 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 18:20:24,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:20:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:20:24,092 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:20:24,143 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 18:20:24,162 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 18:20:24,163 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2018-11-28 18:20:24,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 18:20:24,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 18:20:24,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-28 18:20:24,164 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 10 states. [2018-11-28 18:20:24,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:20:24,205 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-11-28 18:20:24,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 18:20:24,208 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2018-11-28 18:20:24,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:20:24,208 INFO L225 Difference]: With dead ends: 19 [2018-11-28 18:20:24,208 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:20:24,210 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-28 18:20:24,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:20:24,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:20:24,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:20:24,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:20:24,211 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-11-28 18:20:24,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:20:24,211 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:20:24,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 18:20:24,211 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:20:24,211 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:20:24,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:20:24,343 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 18:20:24,343 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:20:24,343 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:20:24,343 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 18:20:24,343 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:20:24,343 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:20:24,343 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 8 16) the Hoare annotation is: true [2018-11-28 18:20:24,343 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 8 16) no Hoare annotation was computed. [2018-11-28 18:20:24,344 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 8 16) no Hoare annotation was computed. [2018-11-28 18:20:24,344 INFO L444 ceAbstractionStarter]: At program point L11-2(lines 11 14) the Hoare annotation is: (or (and (<= 4 main_~x~0) (<= main_~x~0 4) (exists ((v_main_~y~0_6 Int)) (and (<= 1 v_main_~y~0_6) (<= v_main_~y~0_6 1) (= (* 16 v_main_~y~0_6) main_~y~0)))) (and (<= 2 main_~x~0) (exists ((v_main_~y~0_6 Int)) (and (<= 1 v_main_~y~0_6) (= main_~y~0 (* 4 v_main_~y~0_6)) (<= v_main_~y~0_6 1))) (<= main_~x~0 2)) (and (exists ((v_main_~y~0_6 Int)) (and (= main_~y~0 (* 8 v_main_~y~0_6)) (<= 1 v_main_~y~0_6) (<= v_main_~y~0_6 1))) (<= main_~x~0 3) (<= 3 main_~x~0)) (and (exists ((v_main_~y~0_6 Int)) (and (= (* 32 v_main_~y~0_6) main_~y~0) (<= 1 v_main_~y~0_6) (<= v_main_~y~0_6 1))) (<= 5 main_~x~0) (<= main_~x~0 5)) (and (<= 1 main_~y~0) (<= main_~x~0 0) (<= main_~y~0 1) (<= 0 main_~x~0)) (and (<= main_~x~0 6) (exists ((v_main_~y~0_6 Int)) (and (= main_~y~0 (* 64 v_main_~y~0_6)) (<= 1 v_main_~y~0_6) (<= v_main_~y~0_6 1))) (<= 6 main_~x~0)) (and (exists ((v_main_~y~0_6 Int)) (and (<= 1 v_main_~y~0_6) (= (* 2 v_main_~y~0_6) main_~y~0) (<= v_main_~y~0_6 1))) (<= main_~x~0 1) (<= 1 main_~x~0))) [2018-11-28 18:20:24,344 INFO L444 ceAbstractionStarter]: At program point L11-3(lines 11 14) the Hoare annotation is: (<= (let ((.cse0 (div main_~y~0 4294967296))) (+ (* 12297829383904690176 .cse0) (* 8589934592 (div (+ main_~y~0 (* (- 4294967296) .cse0)) 3)) 2863311552)) (* 2863311531 main_~y~0)) [2018-11-28 18:20:24,344 INFO L448 ceAbstractionStarter]: For program point L3-2(lines 2 7) no Hoare annotation was computed. [2018-11-28 18:20:24,344 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2018-11-28 18:20:24,345 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 2 7) no Hoare annotation was computed. [2018-11-28 18:20:24,345 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-11-28 18:20:24,345 INFO L448 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-11-28 18:20:24,345 INFO L448 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2018-11-28 18:20:24,354 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,355 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,355 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,355 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,356 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,356 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,356 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,356 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,357 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,357 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,357 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,357 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,358 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,358 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,358 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,358 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,359 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,359 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,367 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,368 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,368 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,368 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,368 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,369 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,369 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,369 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,369 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,370 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,370 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,370 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,370 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,371 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,371 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,371 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,371 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,372 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:20:24 BoogieIcfgContainer [2018-11-28 18:20:24,375 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:20:24,376 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:20:24,376 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:20:24,376 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:20:24,377 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:20:05" (3/4) ... [2018-11-28 18:20:24,381 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 18:20:24,388 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 18:20:24,389 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 18:20:24,389 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-28 18:20:24,393 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-28 18:20:24,394 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 18:20:24,394 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 18:20:24,421 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((4 <= x && x <= 4) && (\exists v_main_~y~0_6 : int :: (1 <= v_main_~y~0_6 && v_main_~y~0_6 <= 1) && 16 * v_main_~y~0_6 == y)) || ((2 <= x && (\exists v_main_~y~0_6 : int :: (1 <= v_main_~y~0_6 && y == 4 * v_main_~y~0_6) && v_main_~y~0_6 <= 1)) && x <= 2)) || (((\exists v_main_~y~0_6 : int :: (y == 8 * v_main_~y~0_6 && 1 <= v_main_~y~0_6) && v_main_~y~0_6 <= 1) && x <= 3) && 3 <= x)) || (((\exists v_main_~y~0_6 : int :: (32 * v_main_~y~0_6 == y && 1 <= v_main_~y~0_6) && v_main_~y~0_6 <= 1) && 5 <= x) && x <= 5)) || (((1 <= y && x <= 0) && y <= 1) && 0 <= x)) || ((x <= 6 && (\exists v_main_~y~0_6 : int :: (y == 64 * v_main_~y~0_6 && 1 <= v_main_~y~0_6) && v_main_~y~0_6 <= 1)) && 6 <= x)) || (((\exists v_main_~y~0_6 : int :: (1 <= v_main_~y~0_6 && 2 * v_main_~y~0_6 == y) && v_main_~y~0_6 <= 1) && x <= 1) && 1 <= x) [2018-11-28 18:20:24,435 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:20:24,435 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:20:24,436 INFO L168 Benchmark]: Toolchain (without parser) took 19454.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 952.7 MB in the beginning and 852.0 MB in the end (delta: 100.7 MB). Peak memory consumption was 244.8 MB. Max. memory is 11.5 GB. [2018-11-28 18:20:24,438 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:20:24,438 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.77 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:20:24,439 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.64 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:20:24,439 INFO L168 Benchmark]: Boogie Preprocessor took 30.78 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:20:24,440 INFO L168 Benchmark]: RCFGBuilder took 370.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -175.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:20:24,441 INFO L168 Benchmark]: TraceAbstraction took 18662.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 852.0 MB in the end (delta: 265.4 MB). Peak memory consumption was 265.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:20:24,442 INFO L168 Benchmark]: Witness Printer took 59.61 ms. Allocated memory is still 1.2 GB. Free memory is still 852.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:20:24,446 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 299.77 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 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 25.64 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.78 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 370.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -175.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18662.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 852.0 MB in the end (delta: 265.4 MB). Peak memory consumption was 265.4 MB. Max. memory is 11.5 GB. * Witness Printer took 59.61 ms. Allocated memory is still 1.2 GB. Free memory is still 852.0 MB. 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_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] * 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: 11]: Loop Invariant [2018-11-28 18:20:24,455 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,455 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,455 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,456 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,456 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,456 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,456 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,456 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,457 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,457 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,457 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,457 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,457 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,458 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,458 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,458 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,458 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,458 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,460 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,460 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,460 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,460 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,460 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,461 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,461 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,461 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,461 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,461 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,462 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,462 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,462 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,462 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,462 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,463 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,463 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] [2018-11-28 18:20:24,463 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_6,QUANTIFIED] Derived loop invariant: (((((((4 <= x && x <= 4) && (\exists v_main_~y~0_6 : int :: (1 <= v_main_~y~0_6 && v_main_~y~0_6 <= 1) && 16 * v_main_~y~0_6 == y)) || ((2 <= x && (\exists v_main_~y~0_6 : int :: (1 <= v_main_~y~0_6 && y == 4 * v_main_~y~0_6) && v_main_~y~0_6 <= 1)) && x <= 2)) || (((\exists v_main_~y~0_6 : int :: (y == 8 * v_main_~y~0_6 && 1 <= v_main_~y~0_6) && v_main_~y~0_6 <= 1) && x <= 3) && 3 <= x)) || (((\exists v_main_~y~0_6 : int :: (32 * v_main_~y~0_6 == y && 1 <= v_main_~y~0_6) && v_main_~y~0_6 <= 1) && 5 <= x) && x <= 5)) || (((1 <= y && x <= 0) && y <= 1) && 0 <= x)) || ((x <= 6 && (\exists v_main_~y~0_6 : int :: (y == 64 * v_main_~y~0_6 && 1 <= v_main_~y~0_6) && v_main_~y~0_6 <= 1)) && 6 <= x)) || (((\exists v_main_~y~0_6 : int :: (1 <= v_main_~y~0_6 && 2 * v_main_~y~0_6 == y) && v_main_~y~0_6 <= 1) && x <= 1) && 1 <= x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 18.5s OverallTime, 8 OverallIterations, 8 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 80 SDtfs, 2 SDslu, 290 SDs, 0 SdLazy, 295 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 87 SyntacticMatches, 7 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 16.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=7, 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 15 PreInvPairs, 24 NumberOfFragments, 161 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 16.7s InterpolantComputationTime, 208 NumberOfCodeBlocks, 208 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 193 ConstructedInterpolants, 9 QuantifiedInterpolants, 11615 SizeOfPredicates, 7 NumberOfNonLiveVariables, 313 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 15 InterpolantComputations, 1 PerfectInterpolantSequences, 30/184 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...