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_label17_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 20:17:15,212 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 20:17:15,215 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 20:17:15,227 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 20:17:15,227 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 20:17:15,228 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 20:17:15,230 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 20:17:15,231 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 20:17:15,233 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 20:17:15,234 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 20:17:15,235 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 20:17:15,235 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 20:17:15,236 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 20:17:15,237 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 20:17:15,238 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 20:17:15,239 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 20:17:15,240 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 20:17:15,242 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 20:17:15,244 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 20:17:15,246 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 20:17:15,247 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 20:17:15,248 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 20:17:15,250 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 20:17:15,259 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-23 20:17:15,275 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 20:17:15,275 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 20:17:15,276 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 20:17:15,276 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 20:17:15,277 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 20:17:15,277 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 20:17:15,277 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 20:17:15,278 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 20:17:15,278 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 20:17:15,278 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 20:17:15,278 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 20:17:15,278 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 20:17:15,279 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 20:17:15,279 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 20:17:15,279 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 20:17:15,279 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 20:17:15,279 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 20:17:15,279 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 20:17:15,280 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 20:17:15,280 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 20:17:15,280 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 20:17:15,280 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 20:17:15,280 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 20:17:15,281 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 20:17:15,281 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 20:17:15,281 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 20:17:15,281 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 20:17:15,281 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 20:17:15,329 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 20:17:15,345 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 20:17:15,349 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 20:17:15,350 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 20:17:15,351 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 20:17:15,351 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label17_true-unreach-call.c [2018-10-23 20:17:15,415 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/715c5241a/39e53fa04a07447280c60c7987155643/FLAG0b19ccfd3 [2018-10-23 20:17:16,215 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 20:17:16,216 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label17_true-unreach-call.c [2018-10-23 20:17:16,255 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/715c5241a/39e53fa04a07447280c60c7987155643/FLAG0b19ccfd3 [2018-10-23 20:17:16,276 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/715c5241a/39e53fa04a07447280c60c7987155643 [2018-10-23 20:17:16,289 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 20:17:16,292 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 20:17:16,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 20:17:16,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 20:17:16,299 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 20:17:16,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:17:16" (1/1) ... [2018-10-23 20:17:16,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4621111d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:17:16, skipping insertion in model container [2018-10-23 20:17:16,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:17:16" (1/1) ... [2018-10-23 20:17:16,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 20:17:16,500 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 20:17:18,111 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 20:17:18,116 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 20:17:18,884 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 20:17:18,927 INFO L193 MainTranslator]: Completed translation [2018-10-23 20:17:18,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:17:18 WrapperNode [2018-10-23 20:17:18,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 20:17:18,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 20:17:18,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 20:17:18,929 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 20:17:18,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:17:18" (1/1) ... [2018-10-23 20:17:19,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:17:18" (1/1) ... [2018-10-23 20:17:19,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 20:17:19,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 20:17:19,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 20:17:19,831 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 20:17:19,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:17:18" (1/1) ... [2018-10-23 20:17:19,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:17:18" (1/1) ... [2018-10-23 20:17:19,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:17:18" (1/1) ... [2018-10-23 20:17:19,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:17:18" (1/1) ... [2018-10-23 20:17:20,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:17:18" (1/1) ... [2018-10-23 20:17:20,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:17:18" (1/1) ... [2018-10-23 20:17:20,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:17:18" (1/1) ... [2018-10-23 20:17:20,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 20:17:20,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 20:17:20,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 20:17:20,232 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 20:17:20,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:17:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 20:17:20,304 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 20:17:20,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 20:17:20,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 20:17:34,048 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 20:17:34,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:17:34 BoogieIcfgContainer [2018-10-23 20:17:34,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 20:17:34,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 20:17:34,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 20:17:34,053 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 20:17:34,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:17:16" (1/3) ... [2018-10-23 20:17:34,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e6c5dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:17:34, skipping insertion in model container [2018-10-23 20:17:34,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:17:18" (2/3) ... [2018-10-23 20:17:34,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e6c5dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:17:34, skipping insertion in model container [2018-10-23 20:17:34,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:17:34" (3/3) ... [2018-10-23 20:17:34,057 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label17_true-unreach-call.c [2018-10-23 20:17:34,067 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 20:17:34,077 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 20:17:34,095 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 20:17:34,140 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 20:17:34,141 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 20:17:34,141 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 20:17:34,141 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 20:17:34,141 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 20:17:34,142 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 20:17:34,142 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 20:17:34,142 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 20:17:34,142 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 20:17:34,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-10-23 20:17:34,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-23 20:17:34,196 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:17:34,197 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] [2018-10-23 20:17:34,199 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:17:34,205 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:17:34,206 INFO L82 PathProgramCache]: Analyzing trace with hash 646480794, now seen corresponding path program 1 times [2018-10-23 20:17:34,209 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:17:34,209 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:17:34,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:17:34,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:17:34,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:17:34,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:17:34,656 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-23 20:17:34,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:17:34,666 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:17:34,666 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 20:17:34,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:17:34,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:17:34,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:17:34,692 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-10-23 20:17:53,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:17:53,447 INFO L93 Difference]: Finished difference Result 3991 states and 7504 transitions. [2018-10-23 20:17:53,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:17:53,449 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-10-23 20:17:53,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:17:53,498 INFO L225 Difference]: With dead ends: 3991 [2018-10-23 20:17:53,498 INFO L226 Difference]: Without dead ends: 2885 [2018-10-23 20:17:53,507 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:17:53,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2018-10-23 20:17:53,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 1946. [2018-10-23 20:17:53,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1946 states. [2018-10-23 20:17:53,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1946 states to 1946 states and 3412 transitions. [2018-10-23 20:17:53,660 INFO L78 Accepts]: Start accepts. Automaton has 1946 states and 3412 transitions. Word has length 34 [2018-10-23 20:17:53,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:17:53,662 INFO L481 AbstractCegarLoop]: Abstraction has 1946 states and 3412 transitions. [2018-10-23 20:17:53,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:17:53,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1946 states and 3412 transitions. [2018-10-23 20:17:53,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-23 20:17:53,669 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:17:53,670 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:17:53,670 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:17:53,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:17:53,671 INFO L82 PathProgramCache]: Analyzing trace with hash 322636028, now seen corresponding path program 1 times [2018-10-23 20:17:53,671 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:17:53,672 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:17:53,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:17:53,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:17:53,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:17:53,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:17:53,917 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:17:53,917 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:17:53,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 20:17:53,919 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:17:53,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:17:53,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:17:53,920 INFO L87 Difference]: Start difference. First operand 1946 states and 3412 transitions. Second operand 4 states. [2018-10-23 20:18:08,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:18:08,692 INFO L93 Difference]: Finished difference Result 7107 states and 12745 transitions. [2018-10-23 20:18:08,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:18:08,692 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 101 [2018-10-23 20:18:08,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:18:08,721 INFO L225 Difference]: With dead ends: 7107 [2018-10-23 20:18:08,722 INFO L226 Difference]: Without dead ends: 5163 [2018-10-23 20:18:08,727 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:18:08,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5163 states. [2018-10-23 20:18:08,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5163 to 5141. [2018-10-23 20:18:08,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5141 states. [2018-10-23 20:18:08,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 8063 transitions. [2018-10-23 20:18:08,826 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 8063 transitions. Word has length 101 [2018-10-23 20:18:08,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:18:08,827 INFO L481 AbstractCegarLoop]: Abstraction has 5141 states and 8063 transitions. [2018-10-23 20:18:08,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:18:08,827 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 8063 transitions. [2018-10-23 20:18:08,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-10-23 20:18:08,834 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:18:08,834 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:18:08,835 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:18:08,835 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:18:08,835 INFO L82 PathProgramCache]: Analyzing trace with hash 2124125896, now seen corresponding path program 1 times [2018-10-23 20:18:08,835 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:18:08,835 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:18:08,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:18:08,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:18:08,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:18:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:18:09,443 WARN L179 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-23 20:18:09,650 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 26 [2018-10-23 20:18:10,028 WARN L179 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2018-10-23 20:18:10,313 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:18:10,314 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:18:10,314 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-23 20:18:10,315 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-23 20:18:10,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-23 20:18:10,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-23 20:18:10,315 INFO L87 Difference]: Start difference. First operand 5141 states and 8063 transitions. Second operand 8 states. [2018-10-23 20:18:25,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:18:25,625 INFO L93 Difference]: Finished difference Result 12647 states and 18962 transitions. [2018-10-23 20:18:25,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 20:18:25,627 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 189 [2018-10-23 20:18:25,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:18:25,662 INFO L225 Difference]: With dead ends: 12647 [2018-10-23 20:18:25,662 INFO L226 Difference]: Without dead ends: 7508 [2018-10-23 20:18:25,669 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2018-10-23 20:18:25,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7508 states. [2018-10-23 20:18:25,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7508 to 6717. [2018-10-23 20:18:25,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6717 states. [2018-10-23 20:18:25,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6717 states to 6717 states and 9650 transitions. [2018-10-23 20:18:25,791 INFO L78 Accepts]: Start accepts. Automaton has 6717 states and 9650 transitions. Word has length 189 [2018-10-23 20:18:25,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:18:25,792 INFO L481 AbstractCegarLoop]: Abstraction has 6717 states and 9650 transitions. [2018-10-23 20:18:25,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-23 20:18:25,792 INFO L276 IsEmpty]: Start isEmpty. Operand 6717 states and 9650 transitions. [2018-10-23 20:18:25,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2018-10-23 20:18:25,796 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:18:25,796 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 20:18:25,796 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:18:25,797 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:18:25,797 INFO L82 PathProgramCache]: Analyzing trace with hash -750866619, now seen corresponding path program 1 times [2018-10-23 20:18:25,797 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:18:25,797 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:18:25,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:18:25,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:18:25,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:18:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:18:26,212 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-23 20:18:26,259 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 67 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:18:26,259 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:18:26,260 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 20:18:26,276 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:18:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:18:26,371 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:18:26,505 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:18:26,534 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 20:18:26,534 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-23 20:18:26,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 20:18:26,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 20:18:26,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 20:18:26,536 INFO L87 Difference]: Start difference. First operand 6717 states and 9650 transitions. Second operand 6 states. [2018-10-23 20:19:01,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:19:01,623 INFO L93 Difference]: Finished difference Result 31065 states and 47529 transitions. [2018-10-23 20:19:01,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-23 20:19:01,624 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 235 [2018-10-23 20:19:01,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:19:01,705 INFO L225 Difference]: With dead ends: 31065 [2018-10-23 20:19:01,706 INFO L226 Difference]: Without dead ends: 24350 [2018-10-23 20:19:01,721 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-10-23 20:19:01,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24350 states. [2018-10-23 20:19:02,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24350 to 24167. [2018-10-23 20:19:02,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24167 states. [2018-10-23 20:19:02,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24167 states to 24167 states and 34048 transitions. [2018-10-23 20:19:02,217 INFO L78 Accepts]: Start accepts. Automaton has 24167 states and 34048 transitions. Word has length 235 [2018-10-23 20:19:02,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:19:02,218 INFO L481 AbstractCegarLoop]: Abstraction has 24167 states and 34048 transitions. [2018-10-23 20:19:02,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 20:19:02,218 INFO L276 IsEmpty]: Start isEmpty. Operand 24167 states and 34048 transitions. [2018-10-23 20:19:02,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2018-10-23 20:19:02,228 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:19:02,229 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:19:02,229 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:19:02,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:19:02,230 INFO L82 PathProgramCache]: Analyzing trace with hash 410032636, now seen corresponding path program 1 times [2018-10-23 20:19:02,230 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:19:02,230 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:19:02,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:19:02,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:19:02,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:19:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:19:02,667 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-23 20:19:03,063 WARN L179 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2018-10-23 20:19:03,212 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 247 proven. 4 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-10-23 20:19:03,213 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:19:03,213 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 20:19:03,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:19:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:19:03,315 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:19:03,445 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 225 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2018-10-23 20:19:03,466 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 20:19:03,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2018-10-23 20:19:03,468 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 20:19:03,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 20:19:03,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 20:19:03,471 INFO L87 Difference]: Start difference. First operand 24167 states and 34048 transitions. Second operand 6 states. [2018-10-23 20:19:20,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:19:20,439 INFO L93 Difference]: Finished difference Result 105057 states and 150598 transitions. [2018-10-23 20:19:20,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 20:19:20,440 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 304 [2018-10-23 20:19:20,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:19:20,583 INFO L225 Difference]: With dead ends: 105057 [2018-10-23 20:19:20,583 INFO L226 Difference]: Without dead ends: 80892 [2018-10-23 20:19:20,624 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 304 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2018-10-23 20:19:20,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80892 states. [2018-10-23 20:19:21,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80892 to 80099. [2018-10-23 20:19:21,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80099 states. [2018-10-23 20:19:21,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80099 states to 80099 states and 99573 transitions. [2018-10-23 20:19:21,697 INFO L78 Accepts]: Start accepts. Automaton has 80099 states and 99573 transitions. Word has length 304 [2018-10-23 20:19:21,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:19:21,698 INFO L481 AbstractCegarLoop]: Abstraction has 80099 states and 99573 transitions. [2018-10-23 20:19:21,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 20:19:21,698 INFO L276 IsEmpty]: Start isEmpty. Operand 80099 states and 99573 transitions. [2018-10-23 20:19:21,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2018-10-23 20:19:21,733 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:19:21,734 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:19:21,734 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:19:21,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:19:21,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1649858408, now seen corresponding path program 1 times [2018-10-23 20:19:21,735 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:19:21,735 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:19:21,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:19:21,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:19:21,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:19:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:19:22,374 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-10-23 20:19:22,374 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:19:22,374 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:19:22,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:19:22,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:19:22,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:19:22,376 INFO L87 Difference]: Start difference. First operand 80099 states and 99573 transitions. Second operand 4 states. [2018-10-23 20:19:40,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:19:40,084 INFO L93 Difference]: Finished difference Result 179135 states and 224337 transitions. [2018-10-23 20:19:40,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:19:40,084 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 413 [2018-10-23 20:19:40,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:19:40,220 INFO L225 Difference]: With dead ends: 179135 [2018-10-23 20:19:40,220 INFO L226 Difference]: Without dead ends: 99038 [2018-10-23 20:19:40,293 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:19:40,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99038 states. [2018-10-23 20:19:41,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99038 to 99009. [2018-10-23 20:19:41,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99009 states. [2018-10-23 20:19:41,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99009 states to 99009 states and 117870 transitions. [2018-10-23 20:19:41,255 INFO L78 Accepts]: Start accepts. Automaton has 99009 states and 117870 transitions. Word has length 413 [2018-10-23 20:19:41,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:19:41,256 INFO L481 AbstractCegarLoop]: Abstraction has 99009 states and 117870 transitions. [2018-10-23 20:19:41,256 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:19:41,257 INFO L276 IsEmpty]: Start isEmpty. Operand 99009 states and 117870 transitions. [2018-10-23 20:19:41,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2018-10-23 20:19:41,295 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:19:41,296 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:19:41,296 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:19:41,296 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:19:41,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1668630669, now seen corresponding path program 1 times [2018-10-23 20:19:41,297 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:19:41,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:19:41,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:19:41,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:19:41,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:19:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:19:41,727 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2018-10-23 20:19:41,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:19:41,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 20:19:41,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 20:19:41,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 20:19:41,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 20:19:41,729 INFO L87 Difference]: Start difference. First operand 99009 states and 117870 transitions. Second operand 3 states. [2018-10-23 20:19:50,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:19:50,229 INFO L93 Difference]: Finished difference Result 197997 states and 235379 transitions. [2018-10-23 20:19:50,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 20:19:50,230 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 422 [2018-10-23 20:19:50,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:19:50,386 INFO L225 Difference]: With dead ends: 197997 [2018-10-23 20:19:50,386 INFO L226 Difference]: Without dead ends: 95836 [2018-10-23 20:19:50,473 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 20:19:50,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95836 states. [2018-10-23 20:19:51,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95836 to 90305. [2018-10-23 20:19:51,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90305 states. [2018-10-23 20:19:51,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90305 states to 90305 states and 102460 transitions. [2018-10-23 20:19:51,357 INFO L78 Accepts]: Start accepts. Automaton has 90305 states and 102460 transitions. Word has length 422 [2018-10-23 20:19:51,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:19:51,358 INFO L481 AbstractCegarLoop]: Abstraction has 90305 states and 102460 transitions. [2018-10-23 20:19:51,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 20:19:51,358 INFO L276 IsEmpty]: Start isEmpty. Operand 90305 states and 102460 transitions. [2018-10-23 20:19:51,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2018-10-23 20:19:51,385 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:19:51,385 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, 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, 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] [2018-10-23 20:19:51,385 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:19:51,386 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:19:51,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1432005481, now seen corresponding path program 1 times [2018-10-23 20:19:51,386 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:19:51,386 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:19:51,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:19:51,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:19:51,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:19:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:19:51,794 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 349 proven. 132 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2018-10-23 20:19:51,794 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:19:51,794 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 [2018-10-23 20:19:51,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:19:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:19:51,925 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:19:52,030 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 505 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-10-23 20:19:52,052 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 20:19:52,052 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-23 20:19:52,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 20:19:52,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 20:19:52,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 20:19:52,054 INFO L87 Difference]: Start difference. First operand 90305 states and 102460 transitions. Second operand 5 states. [2018-10-23 20:20:08,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:20:08,481 INFO L93 Difference]: Finished difference Result 341389 states and 386836 transitions. [2018-10-23 20:20:08,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 20:20:08,482 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 450 [2018-10-23 20:20:08,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:20:08,782 INFO L225 Difference]: With dead ends: 341389 [2018-10-23 20:20:08,782 INFO L226 Difference]: Without dead ends: 243172 [2018-10-23 20:20:08,874 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 20:20:09,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243172 states. [2018-10-23 20:20:11,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243172 to 175348. [2018-10-23 20:20:11,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175348 states. [2018-10-23 20:20:11,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175348 states to 175348 states and 191285 transitions. [2018-10-23 20:20:11,563 INFO L78 Accepts]: Start accepts. Automaton has 175348 states and 191285 transitions. Word has length 450 [2018-10-23 20:20:11,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:20:11,564 INFO L481 AbstractCegarLoop]: Abstraction has 175348 states and 191285 transitions. [2018-10-23 20:20:11,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 20:20:11,564 INFO L276 IsEmpty]: Start isEmpty. Operand 175348 states and 191285 transitions. [2018-10-23 20:20:11,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2018-10-23 20:20:11,580 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:20:11,581 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, 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, 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] [2018-10-23 20:20:11,581 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:20:11,581 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:20:11,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1727726908, now seen corresponding path program 1 times [2018-10-23 20:20:11,581 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:20:11,582 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:20:11,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:20:11,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:20:11,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:20:11,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:20:12,331 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 460 proven. 6 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2018-10-23 20:20:12,331 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:20:12,331 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 [2018-10-23 20:20:12,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:20:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:20:12,503 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:20:14,095 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 460 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2018-10-23 20:20:14,117 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 20:20:14,117 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-23 20:20:14,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 20:20:14,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 20:20:14,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 20:20:14,119 INFO L87 Difference]: Start difference. First operand 175348 states and 191285 transitions. Second operand 5 states. [2018-10-23 20:20:30,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:20:30,597 INFO L93 Difference]: Finished difference Result 351518 states and 383612 transitions. [2018-10-23 20:20:30,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 20:20:30,598 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 532 [2018-10-23 20:20:30,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:20:30,830 INFO L225 Difference]: With dead ends: 351518 [2018-10-23 20:20:30,830 INFO L226 Difference]: Without dead ends: 173000 [2018-10-23 20:20:30,913 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 532 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 20:20:31,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173000 states. [2018-10-23 20:20:32,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173000 to 167437. [2018-10-23 20:20:32,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167437 states. [2018-10-23 20:20:32,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167437 states to 167437 states and 177398 transitions. [2018-10-23 20:20:32,923 INFO L78 Accepts]: Start accepts. Automaton has 167437 states and 177398 transitions. Word has length 532 [2018-10-23 20:20:32,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:20:32,924 INFO L481 AbstractCegarLoop]: Abstraction has 167437 states and 177398 transitions. [2018-10-23 20:20:32,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 20:20:32,924 INFO L276 IsEmpty]: Start isEmpty. Operand 167437 states and 177398 transitions. [2018-10-23 20:20:32,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2018-10-23 20:20:32,950 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:20:32,951 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:20:32,951 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:20:32,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:20:32,952 INFO L82 PathProgramCache]: Analyzing trace with hash -2101680439, now seen corresponding path program 1 times [2018-10-23 20:20:32,956 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:20:32,956 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:20:32,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:20:32,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:20:32,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:20:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:20:34,514 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-23 20:20:34,859 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 441 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-10-23 20:20:34,860 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:20:34,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 20:20:34,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:20:34,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:20:34,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:20:34,862 INFO L87 Difference]: Start difference. First operand 167437 states and 177398 transitions. Second operand 4 states. [2018-10-23 20:20:44,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:20:44,329 INFO L93 Difference]: Finished difference Result 342754 states and 362867 transitions. [2018-10-23 20:20:44,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:20:44,330 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 553 [2018-10-23 20:20:44,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:20:44,501 INFO L225 Difference]: With dead ends: 342754 [2018-10-23 20:20:44,501 INFO L226 Difference]: Without dead ends: 168989 [2018-10-23 20:20:44,580 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:20:44,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168989 states. [2018-10-23 20:20:46,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168989 to 165047. [2018-10-23 20:20:46,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165047 states. [2018-10-23 20:20:47,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165047 states to 165047 states and 173673 transitions. [2018-10-23 20:20:47,026 INFO L78 Accepts]: Start accepts. Automaton has 165047 states and 173673 transitions. Word has length 553 [2018-10-23 20:20:47,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:20:47,026 INFO L481 AbstractCegarLoop]: Abstraction has 165047 states and 173673 transitions. [2018-10-23 20:20:47,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:20:47,027 INFO L276 IsEmpty]: Start isEmpty. Operand 165047 states and 173673 transitions. [2018-10-23 20:20:47,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2018-10-23 20:20:47,046 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:20:47,046 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 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] [2018-10-23 20:20:47,047 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:20:47,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:20:47,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1391345164, now seen corresponding path program 1 times [2018-10-23 20:20:47,047 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:20:47,047 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:20:47,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:20:47,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:20:47,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:20:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:20:52,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1593 backedges. 905 proven. 189 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked. [2018-10-23 20:20:52,166 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:20:52,166 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 20:20:52,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:20:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:20:52,351 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:20:52,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1593 backedges. 905 proven. 0 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2018-10-23 20:20:52,938 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 20:20:52,938 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2018-10-23 20:20:52,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-23 20:20:52,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-23 20:20:52,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-10-23 20:20:52,940 INFO L87 Difference]: Start difference. First operand 165047 states and 173673 transitions. Second operand 8 states. Received shutdown request... [2018-10-23 20:21:03,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-23 20:21:03,707 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 20:21:03,714 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 20:21:03,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:21:03 BoogieIcfgContainer [2018-10-23 20:21:03,714 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 20:21:03,715 INFO L168 Benchmark]: Toolchain (without parser) took 227425.54 ms. Allocated memory was 1.5 GB in the beginning and 4.5 GB in the end (delta: 3.0 GB). Free memory was 1.4 GB in the beginning and 3.6 GB in the end (delta: -2.2 GB). Peak memory consumption was 779.4 MB. Max. memory is 7.1 GB. [2018-10-23 20:21:03,716 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 20:21:03,717 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2634.92 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: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. [2018-10-23 20:21:03,718 INFO L168 Benchmark]: Boogie Procedure Inliner took 902.20 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 834.7 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 83.7 MB. Max. memory is 7.1 GB. [2018-10-23 20:21:03,719 INFO L168 Benchmark]: Boogie Preprocessor took 399.87 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: 60.3 MB). Peak memory consumption was 60.3 MB. Max. memory is 7.1 GB. [2018-10-23 20:21:03,720 INFO L168 Benchmark]: RCFGBuilder took 13817.43 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 231.7 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 62.8 MB). Peak memory consumption was 582.5 MB. Max. memory is 7.1 GB. [2018-10-23 20:21:03,721 INFO L168 Benchmark]: TraceAbstraction took 209665.02 ms. Allocated memory was 2.6 GB in the beginning and 4.5 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 357.7 MB. Max. memory is 7.1 GB. [2018-10-23 20:21:03,726 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2634.92 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: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 902.20 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 834.7 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 83.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 399.87 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: 60.3 MB). Peak memory consumption was 60.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13817.43 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 231.7 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 62.8 MB). Peak memory consumption was 582.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209665.02 ms. Allocated memory was 2.6 GB in the beginning and 4.5 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 357.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 111). Cancelled while BasicCegarLoop was constructing difference of abstraction (165047states) and FLOYD_HOARE automaton (currently 6 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (327725 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 209.5s OverallTime, 11 OverallIterations, 7 TraceHistogramMax, 182.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9557 SDtfs, 43141 SDslu, 3748 SDs, 0 SdLazy, 66243 SolverSat, 21434 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 150.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2299 GetRequests, 2245 SyntacticMatches, 9 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=175348occurred in iteration=8, 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: 10.9s AutomataMinimizationTime, 10 MinimizatonAttempts, 85617 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 7.9s InterpolantComputationTime, 6178 NumberOfCodeBlocks, 6178 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 6162 ConstructedInterpolants, 0 QuantifiedInterpolants, 8279104 SizeOfPredicates, 1 NumberOfNonLiveVariables, 2969 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 7540/7963 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown