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/Problem13_label56_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 16:27:06,192 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 16:27:06,194 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 16:27:06,208 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 16:27:06,208 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 16:27:06,210 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 16:27:06,211 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 16:27:06,214 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 16:27:06,217 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 16:27:06,218 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 16:27:06,220 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 16:27:06,220 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 16:27:06,221 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 16:27:06,222 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 16:27:06,230 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 16:27:06,233 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 16:27:06,234 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 16:27:06,236 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 16:27:06,240 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 16:27:06,242 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 16:27:06,244 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 16:27:06,246 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 16:27:06,249 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 16:27:06,259 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 16:27:06,260 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 16:27:06,261 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 16:27:06,262 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 16:27:06,262 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 16:27:06,289 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 16:27:06,290 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 16:27:06,290 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 16:27:06,291 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 16:27:06,292 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 16:27:06,292 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 16:27:06,292 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 16:27:06,293 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 16:27:06,295 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 16:27:06,295 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 16:27:06,296 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 16:27:06,296 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 16:27:06,296 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 16:27:06,296 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 16:27:06,296 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 16:27:06,297 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 16:27:06,297 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 16:27:06,297 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 16:27:06,297 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 16:27:06,297 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 16:27:06,298 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 16:27:06,299 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 16:27:06,299 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 16:27:06,299 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 16:27:06,299 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 16:27:06,300 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 16:27:06,300 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 16:27:06,300 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 16:27:06,372 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 16:27:06,386 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 16:27:06,391 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 16:27:06,393 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 16:27:06,393 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 16:27:06,394 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label56_true-unreach-call.c [2018-10-24 16:27:06,460 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/951475989/b33f7534a505418198695e9a3e8b7706/FLAGf4e14cd43 [2018-10-24 16:27:07,265 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 16:27:07,266 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label56_true-unreach-call.c [2018-10-24 16:27:07,305 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/951475989/b33f7534a505418198695e9a3e8b7706/FLAGf4e14cd43 [2018-10-24 16:27:07,324 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/951475989/b33f7534a505418198695e9a3e8b7706 [2018-10-24 16:27:07,336 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 16:27:07,338 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 16:27:07,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 16:27:07,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 16:27:07,345 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 16:27:07,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:27:07" (1/1) ... [2018-10-24 16:27:07,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a79e33f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:27:07, skipping insertion in model container [2018-10-24 16:27:07,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:27:07" (1/1) ... [2018-10-24 16:27:07,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 16:27:07,529 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 16:27:08,994 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:27:08,999 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 16:27:09,657 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:27:09,692 INFO L193 MainTranslator]: Completed translation [2018-10-24 16:27:09,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:27:09 WrapperNode [2018-10-24 16:27:09,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 16:27:09,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 16:27:09,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 16:27:09,694 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 16:27:09,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:27:09" (1/1) ... [2018-10-24 16:27:09,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:27:09" (1/1) ... [2018-10-24 16:27:10,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 16:27:10,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 16:27:10,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 16:27:10,524 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 16:27:10,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:27:09" (1/1) ... [2018-10-24 16:27:10,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:27:09" (1/1) ... [2018-10-24 16:27:10,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:27:09" (1/1) ... [2018-10-24 16:27:10,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:27:09" (1/1) ... [2018-10-24 16:27:10,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:27:09" (1/1) ... [2018-10-24 16:27:10,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:27:09" (1/1) ... [2018-10-24 16:27:10,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:27:09" (1/1) ... [2018-10-24 16:27:10,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 16:27:10,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 16:27:10,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 16:27:10,959 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 16:27:10,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:27:09" (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 16:27:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 16:27:11,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 16:27:11,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 16:27:27,367 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 16:27:27,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:27:27 BoogieIcfgContainer [2018-10-24 16:27:27,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 16:27:27,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 16:27:27,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 16:27:27,373 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 16:27:27,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:27:07" (1/3) ... [2018-10-24 16:27:27,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@671161ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:27:27, skipping insertion in model container [2018-10-24 16:27:27,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:27:09" (2/3) ... [2018-10-24 16:27:27,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@671161ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:27:27, skipping insertion in model container [2018-10-24 16:27:27,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:27:27" (3/3) ... [2018-10-24 16:27:27,378 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label56_true-unreach-call.c [2018-10-24 16:27:27,387 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 16:27:27,397 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 16:27:27,415 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 16:27:27,464 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 16:27:27,465 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 16:27:27,465 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 16:27:27,465 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 16:27:27,465 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 16:27:27,465 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 16:27:27,466 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 16:27:27,466 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 16:27:27,466 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 16:27:27,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-10-24 16:27:27,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-10-24 16:27:27,516 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:27:27,518 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:27:27,520 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:27:27,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:27:27,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1704727530, now seen corresponding path program 1 times [2018-10-24 16:27:27,529 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:27:27,530 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:27:27,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:27:27,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:27:27,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:27:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:27:28,196 WARN L179 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-24 16:27:28,420 WARN L179 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2018-10-24 16:27:28,680 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 16:27:28,683 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:27:28,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:27:28,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 16:27:28,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 16:27:28,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:27:28,710 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 5 states. [2018-10-24 16:27:28,971 WARN L179 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-24 16:27:48,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:27:48,050 INFO L93 Difference]: Finished difference Result 4624 states and 8784 transitions. [2018-10-24 16:27:48,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 16:27:48,054 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2018-10-24 16:27:48,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:27:48,106 INFO L225 Difference]: With dead ends: 4624 [2018-10-24 16:27:48,106 INFO L226 Difference]: Without dead ends: 3515 [2018-10-24 16:27:48,115 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 16:27:48,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3515 states. [2018-10-24 16:27:48,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3515 to 3514. [2018-10-24 16:27:48,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3514 states. [2018-10-24 16:27:48,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3514 states to 3514 states and 5233 transitions. [2018-10-24 16:27:48,325 INFO L78 Accepts]: Start accepts. Automaton has 3514 states and 5233 transitions. Word has length 54 [2018-10-24 16:27:48,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:27:48,326 INFO L481 AbstractCegarLoop]: Abstraction has 3514 states and 5233 transitions. [2018-10-24 16:27:48,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 16:27:48,326 INFO L276 IsEmpty]: Start isEmpty. Operand 3514 states and 5233 transitions. [2018-10-24 16:27:48,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-10-24 16:27:48,335 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:27:48,335 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, 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] [2018-10-24 16:27:48,336 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:27:48,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:27:48,336 INFO L82 PathProgramCache]: Analyzing trace with hash 2056859445, now seen corresponding path program 1 times [2018-10-24 16:27:48,337 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:27:48,337 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:27:48,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:27:48,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:27:48,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:27:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:27:48,756 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-10-24 16:27:48,757 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:27:48,757 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 16:27:48,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:27:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:27:48,863 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:27:49,122 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-24 16:27:49,283 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 26 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:27:49,313 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 16:27:49,314 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 6 [2018-10-24 16:27:49,315 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 16:27:49,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 16:27:49,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-24 16:27:49,316 INFO L87 Difference]: Start difference. First operand 3514 states and 5233 transitions. Second operand 7 states. [2018-10-24 16:27:51,069 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-24 16:28:19,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:28:19,981 INFO L93 Difference]: Finished difference Result 17359 states and 28808 transitions. [2018-10-24 16:28:19,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-24 16:28:19,982 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 180 [2018-10-24 16:28:19,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:28:20,209 INFO L225 Difference]: With dead ends: 17359 [2018-10-24 16:28:20,210 INFO L226 Difference]: Without dead ends: 14635 [2018-10-24 16:28:20,216 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-10-24 16:28:20,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14635 states. [2018-10-24 16:28:20,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14635 to 13039. [2018-10-24 16:28:20,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13039 states. [2018-10-24 16:28:20,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13039 states to 13039 states and 18016 transitions. [2018-10-24 16:28:20,476 INFO L78 Accepts]: Start accepts. Automaton has 13039 states and 18016 transitions. Word has length 180 [2018-10-24 16:28:20,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:28:20,477 INFO L481 AbstractCegarLoop]: Abstraction has 13039 states and 18016 transitions. [2018-10-24 16:28:20,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 16:28:20,478 INFO L276 IsEmpty]: Start isEmpty. Operand 13039 states and 18016 transitions. [2018-10-24 16:28:20,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2018-10-24 16:28:20,486 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:28:20,487 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, 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, 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] [2018-10-24 16:28:20,487 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:28:20,487 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:28:20,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1411327496, now seen corresponding path program 1 times [2018-10-24 16:28:20,488 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:28:20,488 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:28:20,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:28:20,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:28:20,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:28:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:28:20,965 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 103 proven. 66 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-10-24 16:28:20,966 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:28:20,966 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 16:28:20,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:28:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:28:21,080 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:28:21,199 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-10-24 16:28:21,220 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:28:21,221 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-10-24 16:28:21,222 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 16:28:21,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 16:28:21,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:28:21,223 INFO L87 Difference]: Start difference. First operand 13039 states and 18016 transitions. Second operand 5 states. [2018-10-24 16:28:45,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:28:45,351 INFO L93 Difference]: Finished difference Result 71068 states and 103705 transitions. [2018-10-24 16:28:45,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 16:28:45,352 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 312 [2018-10-24 16:28:45,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:28:45,535 INFO L225 Difference]: With dead ends: 71068 [2018-10-24 16:28:45,536 INFO L226 Difference]: Without dead ends: 56447 [2018-10-24 16:28:45,564 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 16:28:45,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56447 states. [2018-10-24 16:28:46,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56447 to 52492. [2018-10-24 16:28:46,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52492 states. [2018-10-24 16:28:46,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52492 states to 52492 states and 65753 transitions. [2018-10-24 16:28:46,473 INFO L78 Accepts]: Start accepts. Automaton has 52492 states and 65753 transitions. Word has length 312 [2018-10-24 16:28:46,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:28:46,474 INFO L481 AbstractCegarLoop]: Abstraction has 52492 states and 65753 transitions. [2018-10-24 16:28:46,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 16:28:46,474 INFO L276 IsEmpty]: Start isEmpty. Operand 52492 states and 65753 transitions. [2018-10-24 16:28:46,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2018-10-24 16:28:46,497 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:28:46,498 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:28:46,498 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:28:46,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:28:46,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1623173960, now seen corresponding path program 1 times [2018-10-24 16:28:46,500 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:28:46,500 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:28:46,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:28:46,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:28:46,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:28:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:28:47,321 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 364 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-10-24 16:28:47,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:28:47,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:28:47,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:28:47,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:28:47,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:28:47,324 INFO L87 Difference]: Start difference. First operand 52492 states and 65753 transitions. Second operand 4 states. [2018-10-24 16:28:57,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:28:57,306 INFO L93 Difference]: Finished difference Result 138904 states and 175283 transitions. [2018-10-24 16:28:57,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:28:57,314 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 422 [2018-10-24 16:28:57,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:28:57,430 INFO L225 Difference]: With dead ends: 138904 [2018-10-24 16:28:57,430 INFO L226 Difference]: Without dead ends: 87202 [2018-10-24 16:28:57,496 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:28:57,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87202 states. [2018-10-24 16:28:58,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87202 to 82439. [2018-10-24 16:28:58,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82439 states. [2018-10-24 16:28:58,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82439 states to 82439 states and 99942 transitions. [2018-10-24 16:28:58,993 INFO L78 Accepts]: Start accepts. Automaton has 82439 states and 99942 transitions. Word has length 422 [2018-10-24 16:28:58,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:28:58,994 INFO L481 AbstractCegarLoop]: Abstraction has 82439 states and 99942 transitions. [2018-10-24 16:28:58,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:28:58,994 INFO L276 IsEmpty]: Start isEmpty. Operand 82439 states and 99942 transitions. [2018-10-24 16:28:59,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2018-10-24 16:28:59,015 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:28:59,015 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, 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, 3, 3, 3, 3, 3, 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] [2018-10-24 16:28:59,016 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:28:59,016 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:28:59,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1339287675, now seen corresponding path program 1 times [2018-10-24 16:28:59,016 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:28:59,016 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:28:59,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:28:59,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:28:59,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:28:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:28:59,476 INFO L134 CoverageAnalysis]: Checked inductivity of 776 backedges. 580 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2018-10-24 16:28:59,476 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:28:59,476 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:28:59,477 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 16:28:59,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 16:28:59,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:28:59,478 INFO L87 Difference]: Start difference. First operand 82439 states and 99942 transitions. Second operand 5 states. [2018-10-24 16:29:20,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:29:20,389 INFO L93 Difference]: Finished difference Result 318056 states and 382527 transitions. [2018-10-24 16:29:20,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 16:29:20,392 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 475 [2018-10-24 16:29:20,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:29:20,840 INFO L225 Difference]: With dead ends: 318056 [2018-10-24 16:29:20,840 INFO L226 Difference]: Without dead ends: 236407 [2018-10-24 16:29:20,915 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:29:21,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236407 states. [2018-10-24 16:29:24,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236407 to 218877. [2018-10-24 16:29:24,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218877 states. [2018-10-24 16:29:24,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218877 states to 218877 states and 256120 transitions. [2018-10-24 16:29:24,408 INFO L78 Accepts]: Start accepts. Automaton has 218877 states and 256120 transitions. Word has length 475 [2018-10-24 16:29:24,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:29:24,409 INFO L481 AbstractCegarLoop]: Abstraction has 218877 states and 256120 transitions. [2018-10-24 16:29:24,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 16:29:24,409 INFO L276 IsEmpty]: Start isEmpty. Operand 218877 states and 256120 transitions. [2018-10-24 16:29:24,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2018-10-24 16:29:24,469 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:29:24,469 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:29:24,470 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:29:24,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:29:24,470 INFO L82 PathProgramCache]: Analyzing trace with hash 2104047600, now seen corresponding path program 1 times [2018-10-24 16:29:24,470 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:29:24,470 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:29:24,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:29:24,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:29:24,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:29:24,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:29:24,995 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-10-24 16:29:24,996 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:29:24,996 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:29:24,997 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:29:24,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:29:24,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:29:24,997 INFO L87 Difference]: Start difference. First operand 218877 states and 256120 transitions. Second operand 4 states. [2018-10-24 16:29:34,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:29:34,553 INFO L93 Difference]: Finished difference Result 436137 states and 511075 transitions. [2018-10-24 16:29:34,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:29:34,553 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 594 [2018-10-24 16:29:34,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:29:34,839 INFO L225 Difference]: With dead ends: 436137 [2018-10-24 16:29:34,840 INFO L226 Difference]: Without dead ends: 218050 [2018-10-24 16:29:34,934 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 16:29:35,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218050 states. [2018-10-24 16:29:36,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218050 to 216473. [2018-10-24 16:29:36,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216473 states. [2018-10-24 16:29:38,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216473 states to 216473 states and 240485 transitions. [2018-10-24 16:29:38,653 INFO L78 Accepts]: Start accepts. Automaton has 216473 states and 240485 transitions. Word has length 594 [2018-10-24 16:29:38,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:29:38,654 INFO L481 AbstractCegarLoop]: Abstraction has 216473 states and 240485 transitions. [2018-10-24 16:29:38,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:29:38,654 INFO L276 IsEmpty]: Start isEmpty. Operand 216473 states and 240485 transitions. [2018-10-24 16:29:38,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1006 [2018-10-24 16:29:38,751 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:29:38,752 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:29:38,752 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:29:38,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:29:38,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1268954467, now seen corresponding path program 1 times [2018-10-24 16:29:38,753 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:29:38,753 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:29:38,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:29:38,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:29:38,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:29:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:29:42,322 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 52 proven. 484 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-10-24 16:29:42,323 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:29:42,323 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 16:29:42,331 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:29:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:29:42,600 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:29:45,375 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 564 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2018-10-24 16:29:45,396 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:29:45,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-10-24 16:29:45,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 16:29:45,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 16:29:45,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-10-24 16:29:45,399 INFO L87 Difference]: Start difference. First operand 216473 states and 240485 transitions. Second operand 8 states. [2018-10-24 16:30:50,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:30:50,202 INFO L93 Difference]: Finished difference Result 679340 states and 751947 transitions. [2018-10-24 16:30:50,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-24 16:30:50,203 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1005 [2018-10-24 16:30:50,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:30:51,049 INFO L225 Difference]: With dead ends: 679340 [2018-10-24 16:30:51,049 INFO L226 Difference]: Without dead ends: 372016 [2018-10-24 16:30:51,117 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1017 GetRequests, 1003 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2018-10-24 16:30:51,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372016 states. [2018-10-24 16:30:54,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372016 to 292161. [2018-10-24 16:30:54,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292161 states. [2018-10-24 16:30:54,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292161 states to 292161 states and 319574 transitions. [2018-10-24 16:30:54,322 INFO L78 Accepts]: Start accepts. Automaton has 292161 states and 319574 transitions. Word has length 1005 [2018-10-24 16:30:54,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:30:54,323 INFO L481 AbstractCegarLoop]: Abstraction has 292161 states and 319574 transitions. [2018-10-24 16:30:54,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 16:30:54,323 INFO L276 IsEmpty]: Start isEmpty. Operand 292161 states and 319574 transitions. [2018-10-24 16:30:54,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1225 [2018-10-24 16:30:54,405 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:30:54,406 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:30:54,407 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:30:54,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:30:54,407 INFO L82 PathProgramCache]: Analyzing trace with hash -333553505, now seen corresponding path program 1 times [2018-10-24 16:30:54,407 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:30:54,408 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:30:54,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:30:54,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:30:54,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:30:54,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-10-24 16:30:56,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1090 backedges. 942 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2018-10-24 16:30:56,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:30:56,847 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:30:56,848 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 16:30:56,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 16:30:56,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:30:56,848 INFO L87 Difference]: Start difference. First operand 292161 states and 319574 transitions. Second operand 3 states. [2018-10-24 16:30:56,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-24 16:30:56,849 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 16:30:56,856 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 16:30:56,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 04:30:56 BoogieIcfgContainer [2018-10-24 16:30:56,856 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 16:30:56,857 INFO L168 Benchmark]: Toolchain (without parser) took 229520.93 ms. Allocated memory was 1.5 GB in the beginning and 4.4 GB in the end (delta: 2.9 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-24 16:30:56,858 INFO L168 Benchmark]: CDTParser took 0.20 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 16:30:56,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2353.83 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-24 16:30:56,860 INFO L168 Benchmark]: Boogie Procedure Inliner took 829.40 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 837.3 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. [2018-10-24 16:30:56,861 INFO L168 Benchmark]: Boogie Preprocessor took 434.97 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 68.8 MB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB. [2018-10-24 16:30:56,861 INFO L168 Benchmark]: RCFGBuilder took 16410.26 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 224.9 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 56.7 MB). Peak memory consumption was 596.0 MB. Max. memory is 7.1 GB. [2018-10-24 16:30:56,862 INFO L168 Benchmark]: TraceAbstraction took 209486.46 ms. Allocated memory was 2.6 GB in the beginning and 4.4 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 3.0 GB in the end (delta: -890.7 MB). Peak memory consumption was 939.6 MB. Max. memory is 7.1 GB. [2018-10-24 16:30:56,868 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 2353.83 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 829.40 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 837.3 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 434.97 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 68.8 MB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 16410.26 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 224.9 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 56.7 MB). Peak memory consumption was 596.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209486.46 ms. Allocated memory was 2.6 GB in the beginning and 4.4 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 3.0 GB in the end (delta: -890.7 MB). Peak memory consumption was 939.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 171]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 171). Cancelled while BasicCegarLoop was constructing difference of abstraction (292161states) and FLOYD_HOARE automaton (currently 2 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 209.4s OverallTime, 8 OverallIterations, 5 TraceHistogramMax, 181.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5230 SDtfs, 36156 SDslu, 3328 SDs, 0 SdLazy, 74521 SolverSat, 22115 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 150.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1541 GetRequests, 1499 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=292161occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 13.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 109277 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 5763 NumberOfCodeBlocks, 5763 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 5752 ConstructedInterpolants, 90 QuantifiedInterpolants, 10899588 SizeOfPredicates, 7 NumberOfNonLiveVariables, 1835 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 4027/4603 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown