./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-lit/jm2006_variant_true-unreach-call_true-termination.c.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-lit/jm2006_variant_true-unreach-call_true-termination.c.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 6b2483ed4878f440f5477fb40e4fe96958613e0f ........................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 18:21:52,467 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:21:52,469 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:21:52,487 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:21:52,488 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:21:52,490 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:21:52,492 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:21:52,495 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:21:52,497 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:21:52,498 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:21:52,499 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:21:52,499 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:21:52,500 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:21:52,502 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:21:52,503 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:21:52,504 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:21:52,505 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:21:52,507 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:21:52,510 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:21:52,512 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:21:52,513 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:21:52,514 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:21:52,517 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:21:52,518 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:21:52,518 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:21:52,519 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:21:52,521 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:21:52,521 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:21:52,522 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:21:52,524 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:21:52,524 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:21:52,525 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:21:52,525 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:21:52,526 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:21:52,527 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:21:52,528 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:21:52,528 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:21:52,558 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:21:52,559 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:21:52,559 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:21:52,560 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:21:52,560 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:21:52,560 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:21:52,561 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:21:52,562 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:21:52,562 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:21:52,562 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:21:52,562 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:21:52,562 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:21:52,562 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:21:52,563 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:21:52,563 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:21:52,563 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:21:52,563 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:21:52,563 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:21:52,563 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:21:52,565 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:21:52,565 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:21:52,565 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:21:52,565 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:21:52,566 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:21:52,566 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:21:52,566 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:21:52,567 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:21:52,567 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:21:52,567 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:21:52,567 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:21:52,567 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 -> 6b2483ed4878f440f5477fb40e4fe96958613e0f [2018-11-28 18:21:52,618 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:21:52,634 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:21:52,638 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:21:52,639 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:21:52,639 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:21:52,640 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-lit/jm2006_variant_true-unreach-call_true-termination.c.i [2018-11-28 18:21:52,715 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc40499af/faeedc54c1184e1b9dd74060182667c0/FLAGeaba0629d [2018-11-28 18:21:53,153 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:21:53,153 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-lit/jm2006_variant_true-unreach-call_true-termination.c.i [2018-11-28 18:21:53,161 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc40499af/faeedc54c1184e1b9dd74060182667c0/FLAGeaba0629d [2018-11-28 18:21:53,522 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc40499af/faeedc54c1184e1b9dd74060182667c0 [2018-11-28 18:21:53,526 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:21:53,528 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:21:53,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:21:53,529 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:21:53,533 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:21:53,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:21:53" (1/1) ... [2018-11-28 18:21:53,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@433d498a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:53, skipping insertion in model container [2018-11-28 18:21:53,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:21:53" (1/1) ... [2018-11-28 18:21:53,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:21:53,565 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:21:53,767 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:21:53,774 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:21:53,794 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:21:53,807 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:21:53,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:53 WrapperNode [2018-11-28 18:21:53,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:21:53,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:21:53,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:21:53,809 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:21:53,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:53" (1/1) ... [2018-11-28 18:21:53,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:53" (1/1) ... [2018-11-28 18:21:53,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:21:53,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:21:53,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:21:53,832 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:21:53,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:53" (1/1) ... [2018-11-28 18:21:53,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:53" (1/1) ... [2018-11-28 18:21:53,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:53" (1/1) ... [2018-11-28 18:21:53,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:53" (1/1) ... [2018-11-28 18:21:53,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:53" (1/1) ... [2018-11-28 18:21:53,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:53" (1/1) ... [2018-11-28 18:21:53,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:53" (1/1) ... [2018-11-28 18:21:53,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:21:53,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:21:53,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:21:53,866 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:21:53,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:21:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:21:53,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:21:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:21:53,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:21:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:21:53,996 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:21:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 18:21:53,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 18:21:54,303 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:21:54,304 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 18:21:54,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:21:54 BoogieIcfgContainer [2018-11-28 18:21:54,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:21:54,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:21:54,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:21:54,309 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:21:54,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:21:53" (1/3) ... [2018-11-28 18:21:54,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d49c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:21:54, skipping insertion in model container [2018-11-28 18:21:54,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:21:53" (2/3) ... [2018-11-28 18:21:54,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d49c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:21:54, skipping insertion in model container [2018-11-28 18:21:54,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:21:54" (3/3) ... [2018-11-28 18:21:54,312 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006_variant_true-unreach-call_true-termination.c.i [2018-11-28 18:21:54,324 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:21:54,337 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:21:54,360 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:21:54,408 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:21:54,409 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:21:54,410 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:21:54,410 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:21:54,410 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:21:54,410 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:21:54,410 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:21:54,411 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:21:54,411 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:21:54,440 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-28 18:21:54,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 18:21:54,446 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:21:54,447 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:21:54,450 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:21:54,455 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:21:54,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1772153714, now seen corresponding path program 1 times [2018-11-28 18:21:54,457 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:21:54,458 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:21:54,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:21:54,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:21:54,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:21:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:21:54,967 WARN L180 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 23 [2018-11-28 18:21:55,210 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 14 [2018-11-28 18:21:55,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:21:55,453 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:21:55,454 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:21:55,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:21:55,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:21:55,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:21:55,473 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 7 states. [2018-11-28 18:21:55,744 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 19 [2018-11-28 18:21:55,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:21:55,956 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2018-11-28 18:21:55,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 18:21:55,959 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-11-28 18:21:55,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:21:55,969 INFO L225 Difference]: With dead ends: 47 [2018-11-28 18:21:55,969 INFO L226 Difference]: Without dead ends: 15 [2018-11-28 18:21:55,974 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-28 18:21:55,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-28 18:21:56,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-28 18:21:56,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-28 18:21:56,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-11-28 18:21:56,020 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2018-11-28 18:21:56,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:21:56,021 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-11-28 18:21:56,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:21:56,021 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-11-28 18:21:56,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 18:21:56,022 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:21:56,022 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:21:56,022 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:21:56,025 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:21:56,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1871056931, now seen corresponding path program 1 times [2018-11-28 18:21:56,027 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:21:56,027 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:21:56,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:21:56,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:21:56,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:21:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:21:56,644 WARN L180 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 16 [2018-11-28 18:21:56,695 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 18:21:56,696 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 18:21:56,696 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 18:21:56,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:21:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:21:56,732 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:21:56,883 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 18:21:56,908 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 18:21:56,908 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2018-11-28 18:21:56,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 18:21:56,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 18:21:56,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2018-11-28 18:21:56,911 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 12 states. [2018-11-28 18:21:57,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:21:57,081 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-11-28 18:21:57,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 18:21:57,082 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 14 [2018-11-28 18:21:57,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:21:57,083 INFO L225 Difference]: With dead ends: 22 [2018-11-28 18:21:57,083 INFO L226 Difference]: Without dead ends: 16 [2018-11-28 18:21:57,085 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-11-28 18:21:57,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-28 18:21:57,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-28 18:21:57,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-28 18:21:57,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-11-28 18:21:57,090 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2018-11-28 18:21:57,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:21:57,090 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-11-28 18:21:57,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 18:21:57,090 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-28 18:21:57,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 18:21:57,091 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:21:57,091 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:21:57,092 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:21:57,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:21:57,092 INFO L82 PathProgramCache]: Analyzing trace with hash -642089362, now seen corresponding path program 2 times [2018-11-28 18:21:57,092 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:21:57,093 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:21:57,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:21:57,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:21:57,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:21:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:21:57,390 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 18:21:57,391 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 18:21:57,391 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 18:21:57,408 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 18:21:57,422 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 18:21:57,422 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 18:21:57,425 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:21:57,625 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 18:21:57,643 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 18:21:57,644 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2018-11-28 18:21:57,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-28 18:21:57,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-28 18:21:57,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-11-28 18:21:57,645 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 14 states. [2018-11-28 18:21:57,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:21:57,907 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2018-11-28 18:21:57,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 18:21:57,909 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2018-11-28 18:21:57,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:21:57,910 INFO L225 Difference]: With dead ends: 26 [2018-11-28 18:21:57,911 INFO L226 Difference]: Without dead ends: 18 [2018-11-28 18:21:57,912 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2018-11-28 18:21:57,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-28 18:21:57,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-28 18:21:57,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 18:21:57,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-11-28 18:21:57,917 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2018-11-28 18:21:57,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:21:57,917 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-11-28 18:21:57,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-28 18:21:57,917 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-11-28 18:21:57,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 18:21:57,918 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:21:57,918 INFO L402 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:21:57,919 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:21:57,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:21:57,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1276972978, now seen corresponding path program 3 times [2018-11-28 18:21:57,919 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:21:57,920 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:21:57,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:21:57,921 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 18:21:57,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:21:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:21:58,171 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 18:21:58,172 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 18:21:58,172 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 18:21:58,191 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-28 18:21:58,210 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-28 18:21:58,210 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 18:21:58,213 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:21:58,578 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 18:21:58,599 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 18:21:58,599 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 17 [2018-11-28 18:21:58,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-28 18:21:58,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-28 18:21:58,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2018-11-28 18:21:58,601 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 17 states. [2018-11-28 18:21:58,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:21:58,859 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2018-11-28 18:21:58,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-28 18:21:58,860 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 17 [2018-11-28 18:21:58,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:21:58,860 INFO L225 Difference]: With dead ends: 21 [2018-11-28 18:21:58,860 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:21:58,861 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2018-11-28 18:21:58,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:21:58,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:21:58,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:21:58,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:21:58,862 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-11-28 18:21:58,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:21:58,862 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:21:58,862 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-28 18:21:58,863 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:21:58,863 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:21:58,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:21:59,063 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 10 [2018-11-28 18:21:59,087 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 18:21:59,087 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:21:59,087 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:21:59,087 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 18:21:59,087 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:21:59,087 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:21:59,087 INFO L444 ceAbstractionStarter]: At program point L25(line 25) the Hoare annotation is: (let ((.cse0 (+ main_~y~0 main_~z~0))) (and (<= .cse0 0) (<= 0 .cse0))) [2018-11-28 18:21:59,088 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 10 28) no Hoare annotation was computed. [2018-11-28 18:21:59,088 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: (let ((.cse1 (+ main_~x~0 main_~j~0)) (.cse0 (+ main_~y~0 main_~i~0 main_~z~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2018-11-28 18:21:59,088 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 10 28) no Hoare annotation was computed. [2018-11-28 18:21:59,088 INFO L448 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-11-28 18:21:59,088 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 10 28) no Hoare annotation was computed. [2018-11-28 18:21:59,088 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 10 28) the Hoare annotation is: true [2018-11-28 18:21:59,088 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2018-11-28 18:21:59,088 INFO L448 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-11-28 18:21:59,088 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-28 18:21:59,089 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-28 18:21:59,089 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-28 18:21:59,089 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-28 18:21:59,089 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-28 18:21:59,089 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-28 18:21:59,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:21:59 BoogieIcfgContainer [2018-11-28 18:21:59,101 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:21:59,102 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:21:59,102 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:21:59,102 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:21:59,102 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:21:54" (3/4) ... [2018-11-28 18:21:59,106 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 18:21:59,112 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 18:21:59,113 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 18:21:59,113 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-28 18:21:59,118 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-28 18:21:59,118 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 18:21:59,118 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 18:21:59,166 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:21:59,166 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:21:59,167 INFO L168 Benchmark]: Toolchain (without parser) took 5640.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 944.6 MB in the beginning and 862.3 MB in the end (delta: 82.4 MB). Peak memory consumption was 221.8 MB. Max. memory is 11.5 GB. [2018-11-28 18:21:59,168 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:21:59,169 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.81 ms. Allocated memory is still 1.0 GB. Free memory was 944.6 MB in the beginning and 933.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:21:59,170 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.86 ms. Allocated memory is still 1.0 GB. Free memory is still 933.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:21:59,170 INFO L168 Benchmark]: Boogie Preprocessor took 33.27 ms. Allocated memory is still 1.0 GB. Free memory is still 933.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:21:59,170 INFO L168 Benchmark]: RCFGBuilder took 439.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -184.0 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-11-28 18:21:59,171 INFO L168 Benchmark]: TraceAbstraction took 4795.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 862.3 MB in the end (delta: 255.7 MB). Peak memory consumption was 255.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:21:59,172 INFO L168 Benchmark]: Witness Printer took 64.81 ms. Allocated memory is still 1.2 GB. Free memory is still 862.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:21:59,176 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 278.81 ms. Allocated memory is still 1.0 GB. Free memory was 944.6 MB in the beginning and 933.9 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 22.86 ms. Allocated memory is still 1.0 GB. Free memory is still 933.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.27 ms. Allocated memory is still 1.0 GB. Free memory is still 933.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 439.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -184.0 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4795.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 862.3 MB in the end (delta: 255.7 MB). Peak memory consumption was 255.7 MB. Max. memory is 11.5 GB. * Witness Printer took 64.81 ms. Allocated memory is still 1.2 GB. Free memory is still 862.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: y + i + z <= x + j && x + j <= y + i + z - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 4.6s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 51 SDtfs, 38 SDslu, 302 SDs, 0 SdLazy, 304 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 33 SyntacticMatches, 5 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 13 PreInvPairs, 24 NumberOfFragments, 33 HoareAnnotationTreeSize, 13 FomulaSimplifications, 55 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 192 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 9557 SizeOfPredicates, 15 NumberOfNonLiveVariables, 169 ConjunctsInSsa, 90 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 1/28 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...