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_label15_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 16:45:20,021 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 16:45:20,025 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 16:45:20,044 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 16:45:20,044 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 16:45:20,045 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 16:45:20,047 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 16:45:20,048 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 16:45:20,050 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 16:45:20,051 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 16:45:20,052 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 16:45:20,052 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 16:45:20,053 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 16:45:20,054 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 16:45:20,056 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 16:45:20,056 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 16:45:20,057 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 16:45:20,061 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 16:45:20,063 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 16:45:20,068 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 16:45:20,069 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 16:45:20,072 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 16:45:20,077 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 16:45:20,077 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 16:45:20,077 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 16:45:20,078 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 16:45:20,079 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 16:45:20,080 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 16:45:20,081 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 16:45:20,082 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 16:45:20,082 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 16:45:20,083 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 16:45:20,085 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 16:45:20,100 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 16:45:20,100 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 16:45:20,101 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 16:45:20,101 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 16:45:20,102 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 16:45:20,102 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 16:45:20,102 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 16:45:20,102 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 16:45:20,103 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 16:45:20,103 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 16:45:20,103 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 16:45:20,103 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 16:45:20,103 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 16:45:20,104 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 16:45:20,104 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 16:45:20,104 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 16:45:20,104 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 16:45:20,104 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 16:45:20,105 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 16:45:20,105 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 16:45:20,105 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 16:45:20,105 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 16:45:20,106 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 16:45:20,106 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 16:45:20,106 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 16:45:20,106 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 16:45:20,106 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 16:45:20,107 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 16:45:20,158 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 16:45:20,174 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 16:45:20,178 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 16:45:20,180 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 16:45:20,180 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 16:45:20,181 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label15_true-unreach-call.c [2018-10-24 16:45:20,245 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b41097f85/2e848b5390744c05b2034fa6e9f23184/FLAGe1ae64f0d [2018-10-24 16:45:20,973 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 16:45:20,975 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label15_true-unreach-call.c [2018-10-24 16:45:21,002 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b41097f85/2e848b5390744c05b2034fa6e9f23184/FLAGe1ae64f0d [2018-10-24 16:45:21,022 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b41097f85/2e848b5390744c05b2034fa6e9f23184 [2018-10-24 16:45:21,033 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 16:45:21,037 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 16:45:21,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 16:45:21,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 16:45:21,043 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 16:45:21,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:45:21" (1/1) ... [2018-10-24 16:45:21,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@400d873a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:45:21, skipping insertion in model container [2018-10-24 16:45:21,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:45:21" (1/1) ... [2018-10-24 16:45:21,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 16:45:21,179 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 16:45:22,240 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:45:22,244 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 16:45:22,701 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:45:22,724 INFO L193 MainTranslator]: Completed translation [2018-10-24 16:45:22,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:45:22 WrapperNode [2018-10-24 16:45:22,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 16:45:22,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 16:45:22,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 16:45:22,727 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 16:45:22,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:45:22" (1/1) ... [2018-10-24 16:45:22,801 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:45:22" (1/1) ... [2018-10-24 16:45:23,279 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 16:45:23,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 16:45:23,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 16:45:23,280 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 16:45:23,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:45:22" (1/1) ... [2018-10-24 16:45:23,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:45:22" (1/1) ... [2018-10-24 16:45:23,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:45:22" (1/1) ... [2018-10-24 16:45:23,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:45:22" (1/1) ... [2018-10-24 16:45:23,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:45:22" (1/1) ... [2018-10-24 16:45:23,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:45:22" (1/1) ... [2018-10-24 16:45:23,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:45:22" (1/1) ... [2018-10-24 16:45:23,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 16:45:23,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 16:45:23,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 16:45:23,607 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 16:45:23,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:45:22" (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 16:45:23,674 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 16:45:23,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 16:45:23,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 16:45:32,554 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 16:45:32,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:45:32 BoogieIcfgContainer [2018-10-24 16:45:32,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 16:45:32,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 16:45:32,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 16:45:32,560 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 16:45:32,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:45:21" (1/3) ... [2018-10-24 16:45:32,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f0ed8ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:45:32, skipping insertion in model container [2018-10-24 16:45:32,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:45:22" (2/3) ... [2018-10-24 16:45:32,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f0ed8ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:45:32, skipping insertion in model container [2018-10-24 16:45:32,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:45:32" (3/3) ... [2018-10-24 16:45:32,564 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label15_true-unreach-call.c [2018-10-24 16:45:32,575 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 16:45:32,585 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 16:45:32,603 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 16:45:32,643 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 16:45:32,644 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 16:45:32,644 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 16:45:32,645 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 16:45:32,645 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 16:45:32,645 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 16:45:32,645 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 16:45:32,645 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 16:45:32,645 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 16:45:32,677 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states. [2018-10-24 16:45:32,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-10-24 16:45:32,693 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:45:32,694 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 16:45:32,697 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:45:32,704 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:45:32,705 INFO L82 PathProgramCache]: Analyzing trace with hash 680225122, now seen corresponding path program 1 times [2018-10-24 16:45:32,707 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:45:32,708 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:45:32,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:45:32,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:45:32,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:45:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:45:33,070 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 16:45:33,073 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:45:33,074 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:45:33,078 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:45:33,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:45:33,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:45:33,095 INFO L87 Difference]: Start difference. First operand 591 states. Second operand 4 states. [2018-10-24 16:45:47,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:45:47,146 INFO L93 Difference]: Finished difference Result 2102 states and 3914 transitions. [2018-10-24 16:45:47,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:45:47,149 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2018-10-24 16:45:47,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:45:47,185 INFO L225 Difference]: With dead ends: 2102 [2018-10-24 16:45:47,186 INFO L226 Difference]: Without dead ends: 1504 [2018-10-24 16:45:47,193 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 [2018-10-24 16:45:47,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2018-10-24 16:45:47,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1491. [2018-10-24 16:45:47,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1491 states. [2018-10-24 16:45:47,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 2416 transitions. [2018-10-24 16:45:47,346 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 2416 transitions. Word has length 37 [2018-10-24 16:45:47,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:45:47,347 INFO L481 AbstractCegarLoop]: Abstraction has 1491 states and 2416 transitions. [2018-10-24 16:45:47,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:45:47,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 2416 transitions. [2018-10-24 16:45:47,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-24 16:45:47,353 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:45:47,353 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:45:47,355 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:45:47,356 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:45:47,356 INFO L82 PathProgramCache]: Analyzing trace with hash 469984361, now seen corresponding path program 1 times [2018-10-24 16:45:47,356 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:45:47,356 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:45:47,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:45:47,358 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:45:47,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:45:47,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:45:47,629 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:45:47,629 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:45:47,629 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:45:47,632 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:45:47,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:45:47,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:45:47,634 INFO L87 Difference]: Start difference. First operand 1491 states and 2416 transitions. Second operand 4 states. [2018-10-24 16:45:58,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:45:58,742 INFO L93 Difference]: Finished difference Result 4268 states and 6993 transitions. [2018-10-24 16:45:58,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:45:58,743 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 105 [2018-10-24 16:45:58,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:45:58,759 INFO L225 Difference]: With dead ends: 4268 [2018-10-24 16:45:58,759 INFO L226 Difference]: Without dead ends: 2779 [2018-10-24 16:45:58,765 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 [2018-10-24 16:45:58,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2018-10-24 16:45:58,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 2779. [2018-10-24 16:45:58,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2779 states. [2018-10-24 16:45:58,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2779 states to 2779 states and 3841 transitions. [2018-10-24 16:45:58,823 INFO L78 Accepts]: Start accepts. Automaton has 2779 states and 3841 transitions. Word has length 105 [2018-10-24 16:45:58,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:45:58,824 INFO L481 AbstractCegarLoop]: Abstraction has 2779 states and 3841 transitions. [2018-10-24 16:45:58,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:45:58,824 INFO L276 IsEmpty]: Start isEmpty. Operand 2779 states and 3841 transitions. [2018-10-24 16:45:58,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-10-24 16:45:58,828 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:45:58,828 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:45:58,828 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:45:58,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:45:58,829 INFO L82 PathProgramCache]: Analyzing trace with hash -445607114, now seen corresponding path program 1 times [2018-10-24 16:45:58,829 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:45:58,829 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:45:58,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:45:58,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:45:58,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:45:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:45:59,078 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:45:59,079 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:45:59,079 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 16:45:59,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:45:59,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:45:59,164 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:45:59,404 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:45:59,439 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:45:59,440 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-24 16:45:59,440 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 16:45:59,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 16:45:59,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 16:45:59,441 INFO L87 Difference]: Start difference. First operand 2779 states and 3841 transitions. Second operand 6 states. [2018-10-24 16:46:15,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:46:15,451 INFO L93 Difference]: Finished difference Result 13733 states and 18932 transitions. [2018-10-24 16:46:15,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 16:46:15,452 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2018-10-24 16:46:15,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:46:15,493 INFO L225 Difference]: With dead ends: 13733 [2018-10-24 16:46:15,493 INFO L226 Difference]: Without dead ends: 8351 [2018-10-24 16:46:15,501 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 106 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 16:46:15,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8351 states. [2018-10-24 16:46:15,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8351 to 7060. [2018-10-24 16:46:15,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7060 states. [2018-10-24 16:46:15,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7060 states to 7060 states and 8761 transitions. [2018-10-24 16:46:15,649 INFO L78 Accepts]: Start accepts. Automaton has 7060 states and 8761 transitions. Word has length 108 [2018-10-24 16:46:15,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:46:15,649 INFO L481 AbstractCegarLoop]: Abstraction has 7060 states and 8761 transitions. [2018-10-24 16:46:15,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 16:46:15,649 INFO L276 IsEmpty]: Start isEmpty. Operand 7060 states and 8761 transitions. [2018-10-24 16:46:15,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-10-24 16:46:15,658 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:46:15,658 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1] [2018-10-24 16:46:15,662 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:46:15,663 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:46:15,663 INFO L82 PathProgramCache]: Analyzing trace with hash 2115030227, now seen corresponding path program 1 times [2018-10-24 16:46:15,663 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:46:15,663 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:46:15,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:46:15,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:46:15,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:46:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:46:15,845 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:46:15,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:46:15,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:46:15,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 16:46:15,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 16:46:15,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:46:15,847 INFO L87 Difference]: Start difference. First operand 7060 states and 8761 transitions. Second operand 3 states. [2018-10-24 16:46:18,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:46:18,835 INFO L93 Difference]: Finished difference Result 17103 states and 21856 transitions. [2018-10-24 16:46:18,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:46:18,835 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2018-10-24 16:46:18,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:46:18,877 INFO L225 Difference]: With dead ends: 17103 [2018-10-24 16:46:18,877 INFO L226 Difference]: Without dead ends: 10472 [2018-10-24 16:46:18,886 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 [2018-10-24 16:46:18,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10472 states. [2018-10-24 16:46:19,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10472 to 10472. [2018-10-24 16:46:19,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10472 states. [2018-10-24 16:46:19,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10472 states to 10472 states and 12687 transitions. [2018-10-24 16:46:19,060 INFO L78 Accepts]: Start accepts. Automaton has 10472 states and 12687 transitions. Word has length 187 [2018-10-24 16:46:19,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:46:19,061 INFO L481 AbstractCegarLoop]: Abstraction has 10472 states and 12687 transitions. [2018-10-24 16:46:19,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 16:46:19,061 INFO L276 IsEmpty]: Start isEmpty. Operand 10472 states and 12687 transitions. [2018-10-24 16:46:19,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2018-10-24 16:46:19,067 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:46:19,068 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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] [2018-10-24 16:46:19,068 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:46:19,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:46:19,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1359024060, now seen corresponding path program 1 times [2018-10-24 16:46:19,069 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:46:19,069 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:46:19,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:46:19,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:46:19,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:46:19,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:46:19,950 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 251 proven. 83 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-10-24 16:46:19,950 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:46:19,950 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 16:46:19,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:46:20,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:46:20,076 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:46:20,333 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 251 proven. 83 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-10-24 16:46:20,354 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 16:46:20,354 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-10-24 16:46:20,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 16:46:20,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 16:46:20,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-10-24 16:46:20,356 INFO L87 Difference]: Start difference. First operand 10472 states and 12687 transitions. Second operand 7 states. [2018-10-24 16:46:34,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:46:34,301 INFO L93 Difference]: Finished difference Result 33375 states and 40551 transitions. [2018-10-24 16:46:34,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 16:46:34,302 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 354 [2018-10-24 16:46:34,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:46:34,351 INFO L225 Difference]: With dead ends: 33375 [2018-10-24 16:46:34,351 INFO L226 Difference]: Without dead ends: 21139 [2018-10-24 16:46:34,366 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-10-24 16:46:34,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21139 states. [2018-10-24 16:46:34,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21139 to 17244. [2018-10-24 16:46:34,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17244 states. [2018-10-24 16:46:34,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17244 states to 17244 states and 19941 transitions. [2018-10-24 16:46:34,665 INFO L78 Accepts]: Start accepts. Automaton has 17244 states and 19941 transitions. Word has length 354 [2018-10-24 16:46:34,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:46:34,666 INFO L481 AbstractCegarLoop]: Abstraction has 17244 states and 19941 transitions. [2018-10-24 16:46:34,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 16:46:34,666 INFO L276 IsEmpty]: Start isEmpty. Operand 17244 states and 19941 transitions. [2018-10-24 16:46:34,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2018-10-24 16:46:34,679 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:46:34,679 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:46:34,680 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:46:34,680 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:46:34,680 INFO L82 PathProgramCache]: Analyzing trace with hash 2059194911, now seen corresponding path program 1 times [2018-10-24 16:46:34,681 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:46:34,681 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:46:34,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:46:34,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:46:34,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:46:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:46:35,212 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 104 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:46:35,212 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:46:35,212 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:46:35,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:46:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:46:35,320 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:46:36,148 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 258 proven. 83 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-10-24 16:46:36,169 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 16:46:36,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 6 [2018-10-24 16:46:36,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 16:46:36,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 16:46:36,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 16:46:36,171 INFO L87 Difference]: Start difference. First operand 17244 states and 19941 transitions. Second operand 7 states. [2018-10-24 16:46:52,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:46:52,453 INFO L93 Difference]: Finished difference Result 51989 states and 59240 transitions. [2018-10-24 16:46:52,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 16:46:52,454 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 361 [2018-10-24 16:46:52,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:46:52,511 INFO L225 Difference]: With dead ends: 51989 [2018-10-24 16:46:52,511 INFO L226 Difference]: Without dead ends: 34306 [2018-10-24 16:46:52,536 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 359 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-10-24 16:46:52,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34306 states. [2018-10-24 16:46:52,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34306 to 25747. [2018-10-24 16:46:52,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25747 states. [2018-10-24 16:46:53,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25747 states to 25747 states and 28696 transitions. [2018-10-24 16:46:53,044 INFO L78 Accepts]: Start accepts. Automaton has 25747 states and 28696 transitions. Word has length 361 [2018-10-24 16:46:53,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:46:53,045 INFO L481 AbstractCegarLoop]: Abstraction has 25747 states and 28696 transitions. [2018-10-24 16:46:53,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 16:46:53,046 INFO L276 IsEmpty]: Start isEmpty. Operand 25747 states and 28696 transitions. [2018-10-24 16:46:53,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2018-10-24 16:46:53,313 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:46:53,314 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 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, 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] [2018-10-24 16:46:53,314 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:46:53,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:46:53,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1653139911, now seen corresponding path program 1 times [2018-10-24 16:46:53,316 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:46:53,316 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:46:53,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:46:53,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:46:53,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:46:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:46:53,983 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2018-10-24 16:46:53,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:46:53,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:46:53,985 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:46:53,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:46:53,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:46:53,986 INFO L87 Difference]: Start difference. First operand 25747 states and 28696 transitions. Second operand 4 states. [2018-10-24 16:47:02,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:47:02,813 INFO L93 Difference]: Finished difference Result 57898 states and 65438 transitions. [2018-10-24 16:47:02,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:47:02,813 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 483 [2018-10-24 16:47:02,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:47:02,872 INFO L225 Difference]: With dead ends: 57898 [2018-10-24 16:47:02,872 INFO L226 Difference]: Without dead ends: 35125 [2018-10-24 16:47:02,899 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:47:02,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35125 states. [2018-10-24 16:47:03,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35125 to 33839. [2018-10-24 16:47:03,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33839 states. [2018-10-24 16:47:03,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33839 states to 33839 states and 37103 transitions. [2018-10-24 16:47:03,322 INFO L78 Accepts]: Start accepts. Automaton has 33839 states and 37103 transitions. Word has length 483 [2018-10-24 16:47:03,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:47:03,323 INFO L481 AbstractCegarLoop]: Abstraction has 33839 states and 37103 transitions. [2018-10-24 16:47:03,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:47:03,324 INFO L276 IsEmpty]: Start isEmpty. Operand 33839 states and 37103 transitions. [2018-10-24 16:47:03,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2018-10-24 16:47:03,345 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:47:03,345 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:47:03,346 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:47:03,346 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:47:03,346 INFO L82 PathProgramCache]: Analyzing trace with hash -564707112, now seen corresponding path program 1 times [2018-10-24 16:47:03,346 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:47:03,346 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:47:03,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:47:03,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:47:03,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:47:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:47:04,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1013 backedges. 541 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2018-10-24 16:47:04,331 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:47:04,331 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:47:04,332 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 16:47:04,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 16:47:04,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:47:04,333 INFO L87 Difference]: Start difference. First operand 33839 states and 37103 transitions. Second operand 3 states. [2018-10-24 16:47:08,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:47:08,448 INFO L93 Difference]: Finished difference Result 74924 states and 82208 transitions. [2018-10-24 16:47:08,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:47:08,449 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 539 [2018-10-24 16:47:08,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:47:08,493 INFO L225 Difference]: With dead ends: 74924 [2018-10-24 16:47:08,493 INFO L226 Difference]: Without dead ends: 41939 [2018-10-24 16:47:08,514 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:47:08,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41939 states. [2018-10-24 16:47:08,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41939 to 40656. [2018-10-24 16:47:08,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40656 states. [2018-10-24 16:47:08,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40656 states to 40656 states and 44099 transitions. [2018-10-24 16:47:08,979 INFO L78 Accepts]: Start accepts. Automaton has 40656 states and 44099 transitions. Word has length 539 [2018-10-24 16:47:08,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:47:08,980 INFO L481 AbstractCegarLoop]: Abstraction has 40656 states and 44099 transitions. [2018-10-24 16:47:08,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 16:47:08,981 INFO L276 IsEmpty]: Start isEmpty. Operand 40656 states and 44099 transitions. [2018-10-24 16:47:09,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2018-10-24 16:47:09,004 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:47:09,004 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-10-24 16:47:09,004 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:47:09,005 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:47:09,005 INFO L82 PathProgramCache]: Analyzing trace with hash -953741318, now seen corresponding path program 1 times [2018-10-24 16:47:09,005 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:47:09,005 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:47:09,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:47:09,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:47:09,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:47:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:47:09,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1013 backedges. 541 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2018-10-24 16:47:09,782 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:47:09,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 16:47:09,784 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 16:47:09,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 16:47:09,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:47:09,784 INFO L87 Difference]: Start difference. First operand 40656 states and 44099 transitions. Second operand 5 states. [2018-10-24 16:47:19,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:47:19,600 INFO L93 Difference]: Finished difference Result 94540 states and 102795 transitions. [2018-10-24 16:47:19,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 16:47:19,601 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 567 [2018-10-24 16:47:19,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:47:19,670 INFO L225 Difference]: With dead ends: 94540 [2018-10-24 16:47:19,670 INFO L226 Difference]: Without dead ends: 58154 [2018-10-24 16:47:19,698 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:47:19,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58154 states. [2018-10-24 16:47:20,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58154 to 50889. [2018-10-24 16:47:20,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50889 states. [2018-10-24 16:47:20,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50889 states to 50889 states and 54937 transitions. [2018-10-24 16:47:20,347 INFO L78 Accepts]: Start accepts. Automaton has 50889 states and 54937 transitions. Word has length 567 [2018-10-24 16:47:20,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:47:20,348 INFO L481 AbstractCegarLoop]: Abstraction has 50889 states and 54937 transitions. [2018-10-24 16:47:20,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 16:47:20,348 INFO L276 IsEmpty]: Start isEmpty. Operand 50889 states and 54937 transitions. [2018-10-24 16:47:20,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2018-10-24 16:47:20,375 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:47:20,376 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 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] [2018-10-24 16:47:20,376 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:47:20,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:47:20,377 INFO L82 PathProgramCache]: Analyzing trace with hash 523501321, now seen corresponding path program 1 times [2018-10-24 16:47:20,377 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:47:20,377 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:47:20,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:47:20,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:47:20,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:47:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:47:21,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 539 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2018-10-24 16:47:21,015 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:47:21,015 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 16:47:21,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 16:47:21,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 16:47:21,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:47:21,017 INFO L87 Difference]: Start difference. First operand 50889 states and 54937 transitions. Second operand 3 states. [2018-10-24 16:47:28,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:47:28,437 INFO L93 Difference]: Finished difference Result 145830 states and 157747 transitions. [2018-10-24 16:47:28,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:47:28,437 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 574 [2018-10-24 16:47:28,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:47:28,546 INFO L225 Difference]: With dead ends: 145830 [2018-10-24 16:47:28,546 INFO L226 Difference]: Without dead ends: 95794 [2018-10-24 16:47:28,578 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:47:28,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95794 states. [2018-10-24 16:47:29,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95794 to 94500. [2018-10-24 16:47:29,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94500 states. [2018-10-24 16:47:29,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94500 states to 94500 states and 102337 transitions. [2018-10-24 16:47:29,431 INFO L78 Accepts]: Start accepts. Automaton has 94500 states and 102337 transitions. Word has length 574 [2018-10-24 16:47:29,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:47:29,432 INFO L481 AbstractCegarLoop]: Abstraction has 94500 states and 102337 transitions. [2018-10-24 16:47:29,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 16:47:29,432 INFO L276 IsEmpty]: Start isEmpty. Operand 94500 states and 102337 transitions. [2018-10-24 16:47:29,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2018-10-24 16:47:29,452 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:47:29,453 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 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, 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] [2018-10-24 16:47:29,453 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:47:29,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:47:29,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1499392919, now seen corresponding path program 1 times [2018-10-24 16:47:29,454 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:47:29,454 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:47:29,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:47:29,455 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:47:29,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:47:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:47:30,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 574 proven. 0 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2018-10-24 16:47:30,226 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:47:30,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 16:47:30,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 16:47:30,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 16:47:30,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:47:30,228 INFO L87 Difference]: Start difference. First operand 94500 states and 102337 transitions. Second operand 5 states. [2018-10-24 16:47:43,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:47:43,463 INFO L93 Difference]: Finished difference Result 221839 states and 240027 transitions. [2018-10-24 16:47:43,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 16:47:43,463 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 602 [2018-10-24 16:47:43,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:47:43,587 INFO L225 Difference]: With dead ends: 221839 [2018-10-24 16:47:43,587 INFO L226 Difference]: Without dead ends: 132884 [2018-10-24 16:47:43,636 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 16:47:43,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132884 states. [2018-10-24 16:47:44,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132884 to 99185. [2018-10-24 16:47:44,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99185 states. [2018-10-24 16:47:44,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99185 states to 99185 states and 107377 transitions. [2018-10-24 16:47:44,606 INFO L78 Accepts]: Start accepts. Automaton has 99185 states and 107377 transitions. Word has length 602 [2018-10-24 16:47:44,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:47:44,607 INFO L481 AbstractCegarLoop]: Abstraction has 99185 states and 107377 transitions. [2018-10-24 16:47:44,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 16:47:44,607 INFO L276 IsEmpty]: Start isEmpty. Operand 99185 states and 107377 transitions. [2018-10-24 16:47:44,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2018-10-24 16:47:44,625 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:47:44,626 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:47:44,626 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:47:44,626 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:47:44,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1617078907, now seen corresponding path program 1 times [2018-10-24 16:47:44,627 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:47:44,627 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:47:44,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:47:44,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:47:44,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:47:44,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:47:45,557 WARN L179 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 6 [2018-10-24 16:47:46,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 635 proven. 248 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2018-10-24 16:47:46,345 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:47:46,346 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:47:46,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:47:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:47:46,515 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:47:46,766 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 13 [2018-10-24 16:48:05,343 WARN L179 SmtUtils]: Spent 16.15 s on a formula simplification. DAG size of input: 194 DAG size of output: 102 [2018-10-24 16:48:06,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 546 proven. 0 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2018-10-24 16:48:06,845 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:48:06,845 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2018-10-24 16:48:06,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 16:48:06,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 16:48:06,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=50, Unknown=1, NotChecked=0, Total=72 [2018-10-24 16:48:06,847 INFO L87 Difference]: Start difference. First operand 99185 states and 107377 transitions. Second operand 9 states. Received shutdown request... [2018-10-24 16:49:31,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:49:31,986 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 16:49:31,992 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 16:49:31,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 04:49:31 BoogieIcfgContainer [2018-10-24 16:49:31,992 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 16:49:31,993 INFO L168 Benchmark]: Toolchain (without parser) took 250959.21 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -368.2 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-24 16:49:31,994 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. [2018-10-24 16:49:31,995 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1687.43 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. [2018-10-24 16:49:31,996 INFO L168 Benchmark]: Boogie Procedure Inliner took 553.00 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 793.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -919.3 MB). Peak memory consumption was 56.0 MB. Max. memory is 7.1 GB. [2018-10-24 16:49:31,997 INFO L168 Benchmark]: Boogie Preprocessor took 326.17 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: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2018-10-24 16:49:31,998 INFO L168 Benchmark]: RCFGBuilder took 8949.24 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: 482.8 MB). Peak memory consumption was 482.8 MB. Max. memory is 7.1 GB. [2018-10-24 16:49:31,998 INFO L168 Benchmark]: TraceAbstraction took 239435.87 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 1.8 GB in the end (delta: -96.6 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-24 16:49:32,003 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 1687.43 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 553.00 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 793.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -919.3 MB). Peak memory consumption was 56.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 326.17 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: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8949.24 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: 482.8 MB). Peak memory consumption was 482.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 239435.87 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 1.8 GB in the end (delta: -96.6 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 116). Cancelled while BasicCegarLoop was constructing difference of abstraction (99185states) and FLOYD_HOARE automaton (currently 3 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (42 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 591 locations, 1 error locations. TIMEOUT Result, 239.3s OverallTime, 12 OverallIterations, 6 TraceHistogramMax, 203.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4223 SDtfs, 14287 SDslu, 2565 SDs, 0 SdLazy, 39364 SolverSat, 5692 SolverUnsat, 46 SolverUnknown, 0 SolverNotchecked, 187.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1487 GetRequests, 1442 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 23.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99185occurred in iteration=11, 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: 4.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 58585 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 26.1s InterpolantComputationTime, 5964 NumberOfCodeBlocks, 5964 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 5948 ConstructedInterpolants, 343 QuantifiedInterpolants, 14166664 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1894 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 16 InterpolantComputations, 10 PerfectInterpolantSequences, 7856/8659 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown