java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/afnp2014_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 11:59:03,382 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 11:59:03,384 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 11:59:03,396 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 11:59:03,396 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 11:59:03,398 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 11:59:03,399 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 11:59:03,402 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 11:59:03,407 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 11:59:03,408 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 11:59:03,409 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 11:59:03,410 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 11:59:03,414 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 11:59:03,415 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 11:59:03,418 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 11:59:03,419 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 11:59:03,420 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 11:59:03,424 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 11:59:03,427 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 11:59:03,428 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 11:59:03,431 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 11:59:03,434 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 11:59:03,436 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 11:59:03,438 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 11:59:03,438 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 11:59:03,439 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 11:59:03,442 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 11:59:03,443 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 11:59:03,444 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 11:59:03,445 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 11:59:03,447 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 11:59:03,448 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 11:59:03,448 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 11:59:03,448 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 11:59:03,451 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 11:59:03,452 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 11:59:03,453 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 11:59:03,474 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 11:59:03,475 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 11:59:03,476 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 11:59:03,476 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 11:59:03,476 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 11:59:03,477 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 11:59:03,477 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 11:59:03,477 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 11:59:03,477 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 11:59:03,477 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 11:59:03,478 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 11:59:03,478 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 11:59:03,478 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 11:59:03,478 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 11:59:03,478 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 11:59:03,479 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 11:59:03,479 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 11:59:03,479 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 11:59:03,479 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 11:59:03,479 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 11:59:03,480 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 11:59:03,480 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 11:59:03,480 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 11:59:03,480 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 11:59:03,480 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 11:59:03,481 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 11:59:03,481 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 11:59:03,481 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 11:59:03,541 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 11:59:03,553 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 11:59:03,557 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 11:59:03,558 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 11:59:03,559 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 11:59:03,559 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-lit/afnp2014_true-unreach-call_true-termination.c.i [2018-10-24 11:59:03,628 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c6517d15f/4805b2cabbba42e8b7f5aed0bad666ca/FLAGb37f5d7d0 [2018-10-24 11:59:04,028 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 11:59:04,029 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/afnp2014_true-unreach-call_true-termination.c.i [2018-10-24 11:59:04,035 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c6517d15f/4805b2cabbba42e8b7f5aed0bad666ca/FLAGb37f5d7d0 [2018-10-24 11:59:04,049 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c6517d15f/4805b2cabbba42e8b7f5aed0bad666ca [2018-10-24 11:59:04,059 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 11:59:04,060 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 11:59:04,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 11:59:04,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 11:59:04,065 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 11:59:04,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:59:04" (1/1) ... [2018-10-24 11:59:04,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36c93180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:04, skipping insertion in model container [2018-10-24 11:59:04,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:59:04" (1/1) ... [2018-10-24 11:59:04,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 11:59:04,100 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 11:59:04,307 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 11:59:04,311 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 11:59:04,329 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 11:59:04,346 INFO L193 MainTranslator]: Completed translation [2018-10-24 11:59:04,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:04 WrapperNode [2018-10-24 11:59:04,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 11:59:04,347 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 11:59:04,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 11:59:04,348 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 11:59:04,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:04" (1/1) ... [2018-10-24 11:59:04,363 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:04" (1/1) ... [2018-10-24 11:59:04,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 11:59:04,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 11:59:04,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 11:59:04,384 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 11:59:04,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:04" (1/1) ... [2018-10-24 11:59:04,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:04" (1/1) ... [2018-10-24 11:59:04,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:04" (1/1) ... [2018-10-24 11:59:04,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:04" (1/1) ... [2018-10-24 11:59:04,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:04" (1/1) ... [2018-10-24 11:59:04,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:04" (1/1) ... [2018-10-24 11:59:04,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:04" (1/1) ... [2018-10-24 11:59:04,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 11:59:04,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 11:59:04,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 11:59:04,406 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 11:59:04,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 11:59:04,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 11:59:04,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 11:59:04,761 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 11:59:04,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:59:04 BoogieIcfgContainer [2018-10-24 11:59:04,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 11:59:04,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 11:59:04,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 11:59:04,766 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 11:59:04,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:59:04" (1/3) ... [2018-10-24 11:59:04,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698b5c85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:59:04, skipping insertion in model container [2018-10-24 11:59:04,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:04" (2/3) ... [2018-10-24 11:59:04,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698b5c85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:59:04, skipping insertion in model container [2018-10-24 11:59:04,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:59:04" (3/3) ... [2018-10-24 11:59:04,770 INFO L112 eAbstractionObserver]: Analyzing ICFG afnp2014_true-unreach-call_true-termination.c.i [2018-10-24 11:59:04,780 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 11:59:04,788 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 11:59:04,805 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 11:59:04,837 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 11:59:04,838 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 11:59:04,838 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 11:59:04,839 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 11:59:04,839 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 11:59:04,839 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 11:59:04,839 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 11:59:04,839 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 11:59:04,839 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 11:59:04,855 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2018-10-24 11:59:04,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-24 11:59:04,862 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:59:04,863 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-10-24 11:59:04,865 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:59:04,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:59:04,872 INFO L82 PathProgramCache]: Analyzing trace with hash 889999271, now seen corresponding path program 1 times [2018-10-24 11:59:04,874 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:59:04,875 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:59:04,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:04,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:59:04,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:59:04,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:59:04,977 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 11:59:04,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 11:59:04,982 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-24 11:59:04,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-24 11:59:04,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-24 11:59:05,000 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2018-10-24 11:59:05,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:59:05,018 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2018-10-24 11:59:05,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-24 11:59:05,019 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2018-10-24 11:59:05,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:59:05,030 INFO L225 Difference]: With dead ends: 22 [2018-10-24 11:59:05,030 INFO L226 Difference]: Without dead ends: 10 [2018-10-24 11:59:05,034 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-24 11:59:05,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-10-24 11:59:05,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-10-24 11:59:05,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-10-24 11:59:05,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2018-10-24 11:59:05,067 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2018-10-24 11:59:05,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:59:05,067 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2018-10-24 11:59:05,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-24 11:59:05,068 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2018-10-24 11:59:05,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-24 11:59:05,068 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:59:05,069 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:59:05,069 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:59:05,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:59:05,069 INFO L82 PathProgramCache]: Analyzing trace with hash 263915982, now seen corresponding path program 1 times [2018-10-24 11:59:05,070 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:59:05,070 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:59:05,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:05,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:59:05,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:05,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:59:05,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:59:05,210 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 11:59:05,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 11:59:05,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 11:59:05,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 11:59:05,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-24 11:59:05,213 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 4 states. [2018-10-24 11:59:05,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:59:05,399 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2018-10-24 11:59:05,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 11:59:05,399 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-10-24 11:59:05,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:59:05,400 INFO L225 Difference]: With dead ends: 18 [2018-10-24 11:59:05,400 INFO L226 Difference]: Without dead ends: 14 [2018-10-24 11:59:05,401 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 11:59:05,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-10-24 11:59:05,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-10-24 11:59:05,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-10-24 11:59:05,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2018-10-24 11:59:05,406 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 9 [2018-10-24 11:59:05,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:59:05,406 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2018-10-24 11:59:05,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 11:59:05,407 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-10-24 11:59:05,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-24 11:59:05,408 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:59:05,408 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:59:05,408 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:59:05,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:59:05,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1899964004, now seen corresponding path program 1 times [2018-10-24 11:59:05,409 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:59:05,409 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:59:05,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:05,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:59:05,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:59:05,567 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:59:05,568 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 11:59:05,568 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 11:59:05,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:59:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:59:05,617 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 11:59:05,701 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:59:05,723 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 11:59:05,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-10-24 11:59:05,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 11:59:05,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 11:59:05,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 11:59:05,725 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 5 states. [2018-10-24 11:59:05,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:59:05,806 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2018-10-24 11:59:05,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 11:59:05,807 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-10-24 11:59:05,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:59:05,808 INFO L225 Difference]: With dead ends: 22 [2018-10-24 11:59:05,808 INFO L226 Difference]: Without dead ends: 18 [2018-10-24 11:59:05,809 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-24 11:59:05,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-10-24 11:59:05,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-10-24 11:59:05,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-10-24 11:59:05,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2018-10-24 11:59:05,813 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 13 [2018-10-24 11:59:05,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:59:05,814 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2018-10-24 11:59:05,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 11:59:05,814 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2018-10-24 11:59:05,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-24 11:59:05,815 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:59:05,815 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2018-10-24 11:59:05,815 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:59:05,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:59:05,816 INFO L82 PathProgramCache]: Analyzing trace with hash 60229626, now seen corresponding path program 2 times [2018-10-24 11:59:05,816 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:59:05,816 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:59:05,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:05,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:59:05,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:59:06,147 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:59:06,147 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 11:59:06,148 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 11:59:06,168 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-24 11:59:06,204 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-24 11:59:06,204 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-24 11:59:06,206 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 11:59:06,274 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:59:06,295 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 11:59:06,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-10-24 11:59:06,296 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 11:59:06,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 11:59:06,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-10-24 11:59:06,298 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 7 states. [2018-10-24 11:59:06,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:59:06,360 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2018-10-24 11:59:06,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 11:59:06,361 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-10-24 11:59:06,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:59:06,362 INFO L225 Difference]: With dead ends: 18 [2018-10-24 11:59:06,362 INFO L226 Difference]: Without dead ends: 0 [2018-10-24 11:59:06,363 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 11:59:06,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-24 11:59:06,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-24 11:59:06,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-24 11:59:06,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-24 11:59:06,364 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-10-24 11:59:06,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:59:06,364 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-24 11:59:06,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 11:59:06,364 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-24 11:59:06,364 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-24 11:59:06,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-24 11:59:06,398 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-24 11:59:06,398 INFO L425 ceAbstractionStarter]: For program point L13-1(lines 13 16) no Hoare annotation was computed. [2018-10-24 11:59:06,398 INFO L425 ceAbstractionStarter]: For program point L13-2(line 13) no Hoare annotation was computed. [2018-10-24 11:59:06,398 INFO L425 ceAbstractionStarter]: For program point L13-4(lines 13 16) no Hoare annotation was computed. [2018-10-24 11:59:06,398 INFO L421 ceAbstractionStarter]: At program point L13-6(lines 13 16) the Hoare annotation is: (and (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~x~0) (<= 1 ULTIMATE.start_main_~x~0) (<= 0 ULTIMATE.start_main_~y~0)) [2018-10-24 11:59:06,399 INFO L425 ceAbstractionStarter]: For program point L13-7(lines 13 16) no Hoare annotation was computed. [2018-10-24 11:59:06,399 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-24 11:59:06,399 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-24 11:59:06,399 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-24 11:59:06,399 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-24 11:59:06,399 INFO L428 ceAbstractionStarter]: At program point L18(lines 10 19) the Hoare annotation is: true [2018-10-24 11:59:06,399 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-24 11:59:06,399 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-24 11:59:06,400 INFO L428 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2018-10-24 11:59:06,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:59:06 BoogieIcfgContainer [2018-10-24 11:59:06,413 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 11:59:06,414 INFO L168 Benchmark]: Toolchain (without parser) took 2354.11 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 729.3 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -695.9 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2018-10-24 11:59:06,416 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 11:59:06,417 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.67 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-24 11:59:06,417 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.04 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 11:59:06,418 INFO L168 Benchmark]: Boogie Preprocessor took 21.67 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 11:59:06,419 INFO L168 Benchmark]: RCFGBuilder took 356.40 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 729.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -787.2 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-10-24 11:59:06,420 INFO L168 Benchmark]: TraceAbstraction took 1649.96 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 80.7 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. [2018-10-24 11:59:06,425 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 285.67 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 36.04 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.67 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 356.40 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 729.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -787.2 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1649.96 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 80.7 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 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: 13]: Loop Invariant Derived loop invariant: (y <= x && 1 <= x) && 0 <= y - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 37 SDtfs, 17 SDslu, 44 SDs, 0 SdLazy, 28 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 12 HoareAnnotationTreeSize, 3 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 2825 SizeOfPredicates, 8 NumberOfNonLiveVariables, 75 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 0/32 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...