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/eca-rers2012/Problem17_label57_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 18:30:18,271 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 18:30:18,273 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 18:30:18,290 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 18:30:18,290 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 18:30:18,291 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 18:30:18,293 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 18:30:18,294 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 18:30:18,296 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 18:30:18,297 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 18:30:18,298 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 18:30:18,298 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 18:30:18,299 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 18:30:18,300 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 18:30:18,301 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 18:30:18,302 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 18:30:18,303 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 18:30:18,305 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 18:30:18,307 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 18:30:18,309 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 18:30:18,310 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 18:30:18,312 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 18:30:18,314 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 18:30:18,314 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 18:30:18,315 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 18:30:18,316 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 18:30:18,317 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 18:30:18,317 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 18:30:18,318 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 18:30:18,319 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 18:30:18,320 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 18:30:18,320 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-23 18:30:18,323 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 [2018-10-23 18:30:18,343 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 18:30:18,344 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 18:30:18,345 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 18:30:18,345 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 18:30:18,346 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 18:30:18,346 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 18:30:18,346 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 18:30:18,347 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 18:30:18,347 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 18:30:18,347 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 18:30:18,347 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 18:30:18,347 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 18:30:18,348 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 18:30:18,348 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 18:30:18,348 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 18:30:18,348 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 18:30:18,348 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 18:30:18,349 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 18:30:18,350 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 18:30:18,350 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 18:30:18,350 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 18:30:18,350 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 18:30:18,351 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 18:30:18,351 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 18:30:18,351 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 18:30:18,351 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 18:30:18,352 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 18:30:18,352 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 18:30:18,414 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 18:30:18,435 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 18:30:18,441 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 18:30:18,443 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 18:30:18,443 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 18:30:18,444 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label57_false-unreach-call.c [2018-10-23 18:30:18,512 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0ccb09413/6090b6d375404d86a7be4ea33d76058a/FLAGffe42b275 [2018-10-23 18:30:19,257 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 18:30:19,258 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label57_false-unreach-call.c [2018-10-23 18:30:19,286 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0ccb09413/6090b6d375404d86a7be4ea33d76058a/FLAGffe42b275 [2018-10-23 18:30:19,307 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0ccb09413/6090b6d375404d86a7be4ea33d76058a [2018-10-23 18:30:19,320 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 18:30:19,322 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 18:30:19,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 18:30:19,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 18:30:19,330 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 18:30:19,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:30:19" (1/1) ... [2018-10-23 18:30:19,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a99fc8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:19, skipping insertion in model container [2018-10-23 18:30:19,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:30:19" (1/1) ... [2018-10-23 18:30:19,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 18:30:19,480 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 18:30:20,490 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 18:30:20,495 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 18:30:20,936 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 18:30:20,962 INFO L193 MainTranslator]: Completed translation [2018-10-23 18:30:20,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:20 WrapperNode [2018-10-23 18:30:20,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 18:30:20,965 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 18:30:20,965 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 18:30:20,965 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 18:30:20,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:20" (1/1) ... [2018-10-23 18:30:21,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:20" (1/1) ... [2018-10-23 18:30:21,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 18:30:21,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 18:30:21,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 18:30:21,538 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 18:30:21,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:20" (1/1) ... [2018-10-23 18:30:21,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:20" (1/1) ... [2018-10-23 18:30:21,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:20" (1/1) ... [2018-10-23 18:30:21,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:20" (1/1) ... [2018-10-23 18:30:21,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:20" (1/1) ... [2018-10-23 18:30:21,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:20" (1/1) ... [2018-10-23 18:30:21,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:20" (1/1) ... [2018-10-23 18:30:21,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 18:30:21,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 18:30:21,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 18:30:21,835 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 18:30:21,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:20" (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 [2018-10-23 18:30:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 18:30:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 18:30:21,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 18:30:31,016 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 18:30:31,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:30:31 BoogieIcfgContainer [2018-10-23 18:30:31,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 18:30:31,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 18:30:31,019 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 18:30:31,022 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 18:30:31,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:30:19" (1/3) ... [2018-10-23 18:30:31,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbb51ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:30:31, skipping insertion in model container [2018-10-23 18:30:31,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:20" (2/3) ... [2018-10-23 18:30:31,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbb51ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:30:31, skipping insertion in model container [2018-10-23 18:30:31,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:30:31" (3/3) ... [2018-10-23 18:30:31,027 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label57_false-unreach-call.c [2018-10-23 18:30:31,037 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 18:30:31,047 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 18:30:31,065 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 18:30:31,109 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 18:30:31,110 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 18:30:31,110 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 18:30:31,110 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 18:30:31,110 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 18:30:31,111 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 18:30:31,111 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 18:30:31,111 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 18:30:31,111 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 18:30:31,143 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states. [2018-10-23 18:30:31,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-23 18:30:31,150 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:30:31,151 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:30:31,154 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:30:31,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:30:31,161 INFO L82 PathProgramCache]: Analyzing trace with hash 670581594, now seen corresponding path program 1 times [2018-10-23 18:30:31,162 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:30:31,163 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:30:31,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:30:31,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:30:31,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:30:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:30:31,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:30:31,554 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:30:31,554 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:30:31,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:30:31,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:30:31,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:30:31,580 INFO L87 Difference]: Start difference. First operand 591 states. Second operand 4 states. [2018-10-23 18:30:43,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:30:43,727 INFO L93 Difference]: Finished difference Result 2126 states and 3956 transitions. [2018-10-23 18:30:43,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:30:43,729 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-10-23 18:30:43,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:30:43,765 INFO L225 Difference]: With dead ends: 2126 [2018-10-23 18:30:43,765 INFO L226 Difference]: Without dead ends: 1528 [2018-10-23 18:30:43,772 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:30:43,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2018-10-23 18:30:43,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1048. [2018-10-23 18:30:43,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1048 states. [2018-10-23 18:30:43,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1826 transitions. [2018-10-23 18:30:43,896 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1826 transitions. Word has length 18 [2018-10-23 18:30:43,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:30:43,896 INFO L481 AbstractCegarLoop]: Abstraction has 1048 states and 1826 transitions. [2018-10-23 18:30:43,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:30:43,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1826 transitions. [2018-10-23 18:30:43,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-10-23 18:30:43,902 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:30:43,902 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:30:43,903 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:30:43,903 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:30:43,903 INFO L82 PathProgramCache]: Analyzing trace with hash -659555608, now seen corresponding path program 1 times [2018-10-23 18:30:43,903 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:30:43,903 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:30:43,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:30:43,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:30:43,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:30:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:30:44,171 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:30:44,171 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:30:44,171 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:30:44,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:30:44,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:30:44,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:30:44,174 INFO L87 Difference]: Start difference. First operand 1048 states and 1826 transitions. Second operand 4 states. [2018-10-23 18:30:53,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:30:53,136 INFO L93 Difference]: Finished difference Result 3810 states and 6822 transitions. [2018-10-23 18:30:53,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:30:53,136 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 90 [2018-10-23 18:30:53,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:30:53,152 INFO L225 Difference]: With dead ends: 3810 [2018-10-23 18:30:53,152 INFO L226 Difference]: Without dead ends: 2764 [2018-10-23 18:30:53,157 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:30:53,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2018-10-23 18:30:53,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2764. [2018-10-23 18:30:53,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2764 states. [2018-10-23 18:30:53,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2764 states to 2764 states and 4043 transitions. [2018-10-23 18:30:53,221 INFO L78 Accepts]: Start accepts. Automaton has 2764 states and 4043 transitions. Word has length 90 [2018-10-23 18:30:53,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:30:53,222 INFO L481 AbstractCegarLoop]: Abstraction has 2764 states and 4043 transitions. [2018-10-23 18:30:53,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:30:53,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2764 states and 4043 transitions. [2018-10-23 18:30:53,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-10-23 18:30:53,229 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:30:53,230 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:30:53,230 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:30:53,230 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:30:53,231 INFO L82 PathProgramCache]: Analyzing trace with hash 483122712, now seen corresponding path program 1 times [2018-10-23 18:30:53,231 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:30:53,231 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:30:53,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:30:53,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:30:53,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:30:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:30:53,856 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 31 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:30:53,857 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:30:53,857 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 [2018-10-23 18:30:53,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:30:53,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:30:53,946 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:30:54,242 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 31 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:30:54,273 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 18:30:54,273 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 4 [2018-10-23 18:30:54,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 18:30:54,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 18:30:54,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-23 18:30:54,275 INFO L87 Difference]: Start difference. First operand 2764 states and 4043 transitions. Second operand 5 states. [2018-10-23 18:31:06,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:31:06,177 INFO L93 Difference]: Finished difference Result 11102 states and 16163 transitions. [2018-10-23 18:31:06,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 18:31:06,177 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 174 [2018-10-23 18:31:06,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:31:06,208 INFO L225 Difference]: With dead ends: 11102 [2018-10-23 18:31:06,209 INFO L226 Difference]: Without dead ends: 6550 [2018-10-23 18:31:06,215 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 172 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-23 18:31:06,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6550 states. [2018-10-23 18:31:06,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6550 to 6549. [2018-10-23 18:31:06,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6549 states. [2018-10-23 18:31:06,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6549 states to 6549 states and 7902 transitions. [2018-10-23 18:31:06,326 INFO L78 Accepts]: Start accepts. Automaton has 6549 states and 7902 transitions. Word has length 174 [2018-10-23 18:31:06,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:31:06,327 INFO L481 AbstractCegarLoop]: Abstraction has 6549 states and 7902 transitions. [2018-10-23 18:31:06,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 18:31:06,327 INFO L276 IsEmpty]: Start isEmpty. Operand 6549 states and 7902 transitions. [2018-10-23 18:31:06,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-10-23 18:31:06,333 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:31:06,334 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:31:06,334 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:31:06,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:31:06,334 INFO L82 PathProgramCache]: Analyzing trace with hash 2094923541, now seen corresponding path program 1 times [2018-10-23 18:31:06,335 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:31:06,335 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:31:06,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:31:06,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:31:06,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:31:06,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:31:06,546 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 233 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-10-23 18:31:06,546 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:31:06,547 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:31:06,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 18:31:06,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 18:31:06,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:31:06,548 INFO L87 Difference]: Start difference. First operand 6549 states and 7902 transitions. Second operand 3 states. [2018-10-23 18:31:11,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:31:11,449 INFO L93 Difference]: Finished difference Result 12662 states and 15359 transitions. [2018-10-23 18:31:11,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:31:11,449 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2018-10-23 18:31:11,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:31:11,477 INFO L225 Difference]: With dead ends: 12662 [2018-10-23 18:31:11,477 INFO L226 Difference]: Without dead ends: 6548 [2018-10-23 18:31:11,485 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:31:11,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6548 states. [2018-10-23 18:31:11,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6548 to 6548. [2018-10-23 18:31:11,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6548 states. [2018-10-23 18:31:11,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6548 states to 6548 states and 7482 transitions. [2018-10-23 18:31:11,602 INFO L78 Accepts]: Start accepts. Automaton has 6548 states and 7482 transitions. Word has length 240 [2018-10-23 18:31:11,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:31:11,603 INFO L481 AbstractCegarLoop]: Abstraction has 6548 states and 7482 transitions. [2018-10-23 18:31:11,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 18:31:11,603 INFO L276 IsEmpty]: Start isEmpty. Operand 6548 states and 7482 transitions. [2018-10-23 18:31:11,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2018-10-23 18:31:11,613 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:31:11,613 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:31:11,613 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:31:11,614 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:31:11,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1222067300, now seen corresponding path program 1 times [2018-10-23 18:31:11,614 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:31:11,614 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:31:11,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:31:11,615 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:31:11,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:31:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:31:12,314 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 323 proven. 83 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-10-23 18:31:12,315 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:31:12,315 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 [2018-10-23 18:31:12,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:31:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:31:12,431 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:31:53,649 WARN L179 SmtUtils]: Spent 40.81 s on a formula simplification. DAG size of input: 866 DAG size of output: 120 [2018-10-23 18:31:54,108 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2018-10-23 18:31:54,129 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 18:31:54,129 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-23 18:31:54,130 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 18:31:54,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 18:31:54,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 18:31:54,131 INFO L87 Difference]: Start difference. First operand 6548 states and 7482 transitions. Second operand 6 states. Received shutdown request... [2018-10-23 18:34:47,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-23 18:34:47,555 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 18:34:47,560 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 18:34:47,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:34:47 BoogieIcfgContainer [2018-10-23 18:34:47,560 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 18:34:47,561 INFO L168 Benchmark]: Toolchain (without parser) took 268240.50 ms. Allocated memory was 1.5 GB in the beginning and 2.9 GB in the end (delta: 1.3 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -720.0 MB). Peak memory consumption was 589.7 MB. Max. memory is 7.1 GB. [2018-10-23 18:34:47,563 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 18:34:47,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1640.20 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-23 18:34:47,564 INFO L168 Benchmark]: Boogie Procedure Inliner took 572.99 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 795.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -918.7 MB). Peak memory consumption was 56.2 MB. Max. memory is 7.1 GB. [2018-10-23 18:34:47,565 INFO L168 Benchmark]: Boogie Preprocessor took 296.30 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. [2018-10-23 18:34:47,566 INFO L168 Benchmark]: RCFGBuilder took 9183.03 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 485.1 MB). Peak memory consumption was 485.1 MB. Max. memory is 7.1 GB. [2018-10-23 18:34:47,567 INFO L168 Benchmark]: TraceAbstraction took 256542.03 ms. Allocated memory was 2.3 GB in the beginning and 2.9 GB in the end (delta: 513.8 MB). Free memory was 1.7 GB in the beginning and 2.1 GB in the end (delta: -452.2 MB). Peak memory consumption was 61.6 MB. Max. memory is 7.1 GB. [2018-10-23 18:34:47,576 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1640.20 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 572.99 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 795.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -918.7 MB). Peak memory consumption was 56.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 296.30 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9183.03 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 485.1 MB). Peak memory consumption was 485.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 256542.03 ms. Allocated memory was 2.3 GB in the beginning and 2.9 GB in the end (delta: 513.8 MB). Free memory was 1.7 GB in the beginning and 2.1 GB in the end (delta: -452.2 MB). Peak memory consumption was 61.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 59). Cancelled while BasicCegarLoop was constructing difference of abstraction (6548states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (26255 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 591 locations, 1 error locations. TIMEOUT Result, 256.4s OverallTime, 5 OverallIterations, 5 TraceHistogramMax, 211.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2200 SDtfs, 5981 SDslu, 1028 SDs, 0 SdLazy, 15382 SolverSat, 3205 SolverUnsat, 51 SolverUnknown, 0 SolverNotchecked, 205.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 543 GetRequests, 528 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 41.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6549occurred 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: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 481 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 43.4s InterpolantComputationTime, 1402 NumberOfCodeBlocks, 1402 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1395 ConstructedInterpolants, 16 QuantifiedInterpolants, 3504556 SizeOfPredicates, 2 NumberOfNonLiveVariables, 755 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 1263/1488 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown