java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label00_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 21:39:08,309 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 21:39:08,311 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 21:39:08,327 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 21:39:08,327 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 21:39:08,328 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 21:39:08,329 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 21:39:08,331 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 21:39:08,333 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 21:39:08,334 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 21:39:08,335 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 21:39:08,335 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 21:39:08,336 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 21:39:08,345 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 21:39:08,346 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 21:39:08,347 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 21:39:08,348 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 21:39:08,352 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 21:39:08,355 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 21:39:08,357 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 21:39:08,358 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 21:39:08,359 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 21:39:08,361 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 21:39:08,362 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 21:39:08,362 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 21:39:08,363 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 21:39:08,364 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 21:39:08,364 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 21:39:08,365 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 21:39:08,366 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 21:39:08,366 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 21:39:08,367 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-06 21:39:08,369 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 21:39:08,384 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 21:39:08,384 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 21:39:08,385 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 21:39:08,385 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 21:39:08,386 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 21:39:08,386 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 21:39:08,386 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 21:39:08,387 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 21:39:08,387 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 21:39:08,387 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 21:39:08,387 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 21:39:08,387 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 21:39:08,388 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 21:39:08,388 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 21:39:08,388 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 21:39:08,388 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 21:39:08,388 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 21:39:08,389 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 21:39:08,389 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 21:39:08,389 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 21:39:08,389 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 21:39:08,389 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 21:39:08,390 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 21:39:08,390 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 21:39:08,390 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 21:39:08,390 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 21:39:08,390 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 21:39:08,391 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 21:39:08,459 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 21:39:08,474 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 21:39:08,480 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 21:39:08,481 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 21:39:08,482 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 21:39:08,482 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label00_true-unreach-call.c [2018-11-06 21:39:08,539 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2ef416a9/2f94ae72cdc64c71b9fb403eae829f64/FLAGf354c1af6 [2018-11-06 21:39:09,218 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 21:39:09,219 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label00_true-unreach-call.c [2018-11-06 21:39:09,250 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2ef416a9/2f94ae72cdc64c71b9fb403eae829f64/FLAGf354c1af6 [2018-11-06 21:39:09,272 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2ef416a9/2f94ae72cdc64c71b9fb403eae829f64 [2018-11-06 21:39:09,285 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 21:39:09,289 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 21:39:09,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 21:39:09,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 21:39:09,297 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 21:39:09,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:39:09" (1/1) ... [2018-11-06 21:39:09,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53c7ef73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:39:09, skipping insertion in model container [2018-11-06 21:39:09,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:39:09" (1/1) ... [2018-11-06 21:39:09,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 21:39:09,450 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 21:39:10,447 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 21:39:10,453 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 21:39:10,866 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 21:39:10,889 INFO L193 MainTranslator]: Completed translation [2018-11-06 21:39:10,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:39:10 WrapperNode [2018-11-06 21:39:10,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 21:39:10,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 21:39:10,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 21:39:10,892 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 21:39:10,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:39:10" (1/1) ... [2018-11-06 21:39:11,227 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:39:10" (1/1) ... [2018-11-06 21:39:11,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 21:39:11,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 21:39:11,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 21:39:11,488 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 21:39:11,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:39:10" (1/1) ... [2018-11-06 21:39:11,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:39:10" (1/1) ... [2018-11-06 21:39:11,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:39:10" (1/1) ... [2018-11-06 21:39:11,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:39:10" (1/1) ... [2018-11-06 21:39:11,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:39:10" (1/1) ... [2018-11-06 21:39:11,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:39:10" (1/1) ... [2018-11-06 21:39:11,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:39:10" (1/1) ... [2018-11-06 21:39:11,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 21:39:11,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 21:39:11,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 21:39:11,789 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 21:39:11,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:39:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-06 21:39:11,860 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 21:39:11,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 21:39:11,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 21:39:21,056 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 21:39:21,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:39:21 BoogieIcfgContainer [2018-11-06 21:39:21,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 21:39:21,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 21:39:21,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 21:39:21,062 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 21:39:21,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:39:09" (1/3) ... [2018-11-06 21:39:21,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15470f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:39:21, skipping insertion in model container [2018-11-06 21:39:21,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:39:10" (2/3) ... [2018-11-06 21:39:21,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15470f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:39:21, skipping insertion in model container [2018-11-06 21:39:21,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:39:21" (3/3) ... [2018-11-06 21:39:21,067 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label00_true-unreach-call.c [2018-11-06 21:39:21,077 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 21:39:21,087 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 21:39:21,104 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 21:39:21,143 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 21:39:21,144 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 21:39:21,144 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 21:39:21,144 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 21:39:21,145 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 21:39:21,145 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 21:39:21,145 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 21:39:21,145 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 21:39:21,145 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 21:39:21,178 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states. [2018-11-06 21:39:21,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-11-06 21:39:21,188 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:39:21,189 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, 1] [2018-11-06 21:39:21,192 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:39:21,198 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:39:21,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1306950314, now seen corresponding path program 1 times [2018-11-06 21:39:21,201 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:39:21,202 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:39:21,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:39:21,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:39:21,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:39:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:39:21,724 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 5 [2018-11-06 21:39:21,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:39:21,751 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:39:21,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 21:39:21,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:39:21,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:39:21,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:39:21,776 INFO L87 Difference]: Start difference. First operand 591 states. Second operand 4 states. [2018-11-06 21:39:30,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:39:30,440 INFO L93 Difference]: Finished difference Result 2099 states and 3904 transitions. [2018-11-06 21:39:30,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:39:30,442 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 55 [2018-11-06 21:39:30,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:39:30,479 INFO L225 Difference]: With dead ends: 2099 [2018-11-06 21:39:30,479 INFO L226 Difference]: Without dead ends: 1501 [2018-11-06 21:39:30,488 INFO L604 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 [2018-11-06 21:39:30,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2018-11-06 21:39:30,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1499. [2018-11-06 21:39:30,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1499 states. [2018-11-06 21:39:30,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 2373 transitions. [2018-11-06 21:39:30,647 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 2373 transitions. Word has length 55 [2018-11-06 21:39:30,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:39:30,649 INFO L480 AbstractCegarLoop]: Abstraction has 1499 states and 2373 transitions. [2018-11-06 21:39:30,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:39:30,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 2373 transitions. [2018-11-06 21:39:30,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-11-06 21:39:30,659 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:39:30,660 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:39:30,660 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:39:30,660 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:39:30,662 INFO L82 PathProgramCache]: Analyzing trace with hash -755960674, now seen corresponding path program 1 times [2018-11-06 21:39:30,662 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:39:30,662 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:39:30,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:39:30,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:39:30,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:39:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:39:31,044 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:39:31,045 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:39:31,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 21:39:31,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:39:31,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:39:31,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:39:31,051 INFO L87 Difference]: Start difference. First operand 1499 states and 2373 transitions. Second operand 4 states. [2018-11-06 21:39:40,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:39:40,572 INFO L93 Difference]: Finished difference Result 5631 states and 9061 transitions. [2018-11-06 21:39:40,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:39:40,573 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 126 [2018-11-06 21:39:40,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:39:40,598 INFO L225 Difference]: With dead ends: 5631 [2018-11-06 21:39:40,598 INFO L226 Difference]: Without dead ends: 4134 [2018-11-06 21:39:40,605 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:39:40,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4134 states. [2018-11-06 21:39:40,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4134 to 4101. [2018-11-06 21:39:40,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4101 states. [2018-11-06 21:39:40,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4101 states to 4101 states and 5983 transitions. [2018-11-06 21:39:40,697 INFO L78 Accepts]: Start accepts. Automaton has 4101 states and 5983 transitions. Word has length 126 [2018-11-06 21:39:40,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:39:40,698 INFO L480 AbstractCegarLoop]: Abstraction has 4101 states and 5983 transitions. [2018-11-06 21:39:40,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:39:40,698 INFO L276 IsEmpty]: Start isEmpty. Operand 4101 states and 5983 transitions. [2018-11-06 21:39:40,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-11-06 21:39:40,704 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:39:40,704 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, 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] [2018-11-06 21:39:40,704 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:39:40,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:39:40,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1532322790, now seen corresponding path program 1 times [2018-11-06 21:39:40,705 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:39:40,705 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:39:40,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:39:40,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:39:40,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:39:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:39:40,896 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:39:40,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:39:40,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 21:39:40,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 21:39:40,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 21:39:40,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 21:39:40,901 INFO L87 Difference]: Start difference. First operand 4101 states and 5983 transitions. Second operand 3 states. [2018-11-06 21:39:44,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:39:44,640 INFO L93 Difference]: Finished difference Result 12038 states and 17622 transitions. [2018-11-06 21:39:44,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 21:39:44,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2018-11-06 21:39:44,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:39:44,673 INFO L225 Difference]: With dead ends: 12038 [2018-11-06 21:39:44,674 INFO L226 Difference]: Without dead ends: 6632 [2018-11-06 21:39:44,682 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 21:39:44,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6632 states. [2018-11-06 21:39:44,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6632 to 6632. [2018-11-06 21:39:44,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6632 states. [2018-11-06 21:39:44,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6632 states to 6632 states and 8195 transitions. [2018-11-06 21:39:44,807 INFO L78 Accepts]: Start accepts. Automaton has 6632 states and 8195 transitions. Word has length 167 [2018-11-06 21:39:44,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:39:44,808 INFO L480 AbstractCegarLoop]: Abstraction has 6632 states and 8195 transitions. [2018-11-06 21:39:44,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 21:39:44,809 INFO L276 IsEmpty]: Start isEmpty. Operand 6632 states and 8195 transitions. [2018-11-06 21:39:44,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2018-11-06 21:39:44,812 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:39:44,812 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, 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] [2018-11-06 21:39:44,813 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:39:44,813 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:39:44,813 INFO L82 PathProgramCache]: Analyzing trace with hash -534810368, now seen corresponding path program 1 times [2018-11-06 21:39:44,813 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:39:44,814 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:39:44,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:39:44,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:39:44,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:39:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:39:45,328 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:39:45,328 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:39:45,328 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 21:39:45,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:39:45,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:39:45,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:39:45,332 INFO L87 Difference]: Start difference. First operand 6632 states and 8195 transitions. Second operand 4 states. [2018-11-06 21:39:49,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:39:49,340 INFO L93 Difference]: Finished difference Result 17528 states and 22443 transitions. [2018-11-06 21:39:49,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:39:49,341 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 218 [2018-11-06 21:39:49,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:39:49,391 INFO L225 Difference]: With dead ends: 17528 [2018-11-06 21:39:49,391 INFO L226 Difference]: Without dead ends: 10898 [2018-11-06 21:39:49,403 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:39:49,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10898 states. [2018-11-06 21:39:49,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10898 to 10472. [2018-11-06 21:39:49,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10472 states. [2018-11-06 21:39:49,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10472 states to 10472 states and 12821 transitions. [2018-11-06 21:39:49,588 INFO L78 Accepts]: Start accepts. Automaton has 10472 states and 12821 transitions. Word has length 218 [2018-11-06 21:39:49,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:39:49,589 INFO L480 AbstractCegarLoop]: Abstraction has 10472 states and 12821 transitions. [2018-11-06 21:39:49,589 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:39:49,589 INFO L276 IsEmpty]: Start isEmpty. Operand 10472 states and 12821 transitions. [2018-11-06 21:39:49,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2018-11-06 21:39:49,594 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:39:49,594 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:39:49,595 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:39:49,595 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:39:49,595 INFO L82 PathProgramCache]: Analyzing trace with hash -2126901769, now seen corresponding path program 1 times [2018-11-06 21:39:49,595 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:39:49,595 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:39:49,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:39:49,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:39:49,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:39:49,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:39:49,877 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-11-06 21:39:49,878 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:39:49,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 21:39:49,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 21:39:49,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 21:39:49,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 21:39:49,879 INFO L87 Difference]: Start difference. First operand 10472 states and 12821 transitions. Second operand 3 states. [2018-11-06 21:39:53,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:39:53,674 INFO L93 Difference]: Finished difference Result 28617 states and 34930 transitions. [2018-11-06 21:39:53,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 21:39:53,674 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 256 [2018-11-06 21:39:53,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:39:53,723 INFO L225 Difference]: With dead ends: 28617 [2018-11-06 21:39:53,724 INFO L226 Difference]: Without dead ends: 18147 [2018-11-06 21:39:53,737 INFO L604 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 [2018-11-06 21:39:53,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18147 states. [2018-11-06 21:39:53,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18147 to 18141. [2018-11-06 21:39:53,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18141 states. [2018-11-06 21:39:53,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18141 states to 18141 states and 21689 transitions. [2018-11-06 21:39:53,978 INFO L78 Accepts]: Start accepts. Automaton has 18141 states and 21689 transitions. Word has length 256 [2018-11-06 21:39:53,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:39:53,979 INFO L480 AbstractCegarLoop]: Abstraction has 18141 states and 21689 transitions. [2018-11-06 21:39:53,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 21:39:53,979 INFO L276 IsEmpty]: Start isEmpty. Operand 18141 states and 21689 transitions. [2018-11-06 21:39:53,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2018-11-06 21:39:53,987 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:39:53,988 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, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:39:53,988 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:39:53,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:39:53,988 INFO L82 PathProgramCache]: Analyzing trace with hash 783097630, now seen corresponding path program 1 times [2018-11-06 21:39:53,988 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:39:53,989 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:39:53,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:39:53,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:39:53,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:39:54,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:39:54,597 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 246 proven. 71 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-11-06 21:39:54,597 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:39:54,597 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-06 21:39:54,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:39:54,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:39:54,740 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:39:55,074 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 246 proven. 71 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-11-06 21:39:55,102 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 21:39:55,103 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 4 [2018-11-06 21:39:55,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 21:39:55,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 21:39:55,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-06 21:39:55,104 INFO L87 Difference]: Start difference. First operand 18141 states and 21689 transitions. Second operand 5 states. [2018-11-06 21:40:04,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:40:04,538 INFO L93 Difference]: Finished difference Result 51641 states and 62505 transitions. [2018-11-06 21:40:04,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 21:40:04,539 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 282 [2018-11-06 21:40:04,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:40:04,599 INFO L225 Difference]: With dead ends: 51641 [2018-11-06 21:40:04,599 INFO L226 Difference]: Without dead ends: 30449 [2018-11-06 21:40:04,620 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 280 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-06 21:40:04,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30449 states. [2018-11-06 21:40:05,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30449 to 27020. [2018-11-06 21:40:05,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27020 states. [2018-11-06 21:40:05,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27020 states to 27020 states and 31007 transitions. [2018-11-06 21:40:05,084 INFO L78 Accepts]: Start accepts. Automaton has 27020 states and 31007 transitions. Word has length 282 [2018-11-06 21:40:05,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:40:05,085 INFO L480 AbstractCegarLoop]: Abstraction has 27020 states and 31007 transitions. [2018-11-06 21:40:05,085 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 21:40:05,085 INFO L276 IsEmpty]: Start isEmpty. Operand 27020 states and 31007 transitions. [2018-11-06 21:40:05,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2018-11-06 21:40:05,091 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:40:05,092 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:40:05,092 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:40:05,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:40:05,092 INFO L82 PathProgramCache]: Analyzing trace with hash -571301849, now seen corresponding path program 1 times [2018-11-06 21:40:05,092 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:40:05,093 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:40:05,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:40:05,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:40:05,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:40:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:40:05,739 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 14 [2018-11-06 21:40:05,938 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 250 proven. 83 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-11-06 21:40:05,938 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:40:05,939 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-06 21:40:05,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:40:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:40:06,040 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:40:06,203 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 250 proven. 83 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-11-06 21:40:06,223 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 21:40:06,224 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2018-11-06 21:40:06,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-06 21:40:06,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-06 21:40:06,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-11-06 21:40:06,225 INFO L87 Difference]: Start difference. First operand 27020 states and 31007 transitions. Second operand 9 states. [2018-11-06 21:40:15,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:40:15,058 INFO L93 Difference]: Finished difference Result 56176 states and 64282 transitions. [2018-11-06 21:40:15,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 21:40:15,059 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 318 [2018-11-06 21:40:15,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:40:15,110 INFO L225 Difference]: With dead ends: 56176 [2018-11-06 21:40:15,110 INFO L226 Difference]: Without dead ends: 29586 [2018-11-06 21:40:15,135 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-11-06 21:40:15,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29586 states. [2018-11-06 21:40:15,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29586 to 28724. [2018-11-06 21:40:15,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28724 states. [2018-11-06 21:40:15,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28724 states to 28724 states and 32800 transitions. [2018-11-06 21:40:15,464 INFO L78 Accepts]: Start accepts. Automaton has 28724 states and 32800 transitions. Word has length 318 [2018-11-06 21:40:15,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:40:15,464 INFO L480 AbstractCegarLoop]: Abstraction has 28724 states and 32800 transitions. [2018-11-06 21:40:15,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-06 21:40:15,465 INFO L276 IsEmpty]: Start isEmpty. Operand 28724 states and 32800 transitions. [2018-11-06 21:40:15,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2018-11-06 21:40:15,471 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:40:15,472 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:40:15,472 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:40:15,472 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:40:15,472 INFO L82 PathProgramCache]: Analyzing trace with hash -173028014, now seen corresponding path program 1 times [2018-11-06 21:40:15,472 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:40:15,472 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:40:15,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:40:15,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:40:15,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:40:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:40:16,347 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 6 [2018-11-06 21:40:16,497 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 158 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:40:16,498 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:40:16,498 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-06 21:40:16,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:40:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:40:16,592 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:40:17,141 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 23 [2018-11-06 21:40:21,277 WARN L179 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 1583 DAG size of output: 38 [2018-11-06 21:40:22,177 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 53 proven. 353 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:40:22,197 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 21:40:22,198 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2018-11-06 21:40:22,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-06 21:40:22,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-06 21:40:22,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-11-06 21:40:22,200 INFO L87 Difference]: Start difference. First operand 28724 states and 32800 transitions. Second operand 10 states. [2018-11-06 21:41:11,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:41:11,646 INFO L93 Difference]: Finished difference Result 103641 states and 118465 transitions. [2018-11-06 21:41:11,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-06 21:41:11,647 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 322 [2018-11-06 21:41:11,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:41:11,735 INFO L225 Difference]: With dead ends: 103641 [2018-11-06 21:41:11,736 INFO L226 Difference]: Without dead ends: 72358 [2018-11-06 21:41:11,763 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 318 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-11-06 21:41:11,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72358 states. [2018-11-06 21:41:12,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72358 to 57727. [2018-11-06 21:41:12,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57727 states. [2018-11-06 21:41:12,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57727 states to 57727 states and 64596 transitions. [2018-11-06 21:41:12,494 INFO L78 Accepts]: Start accepts. Automaton has 57727 states and 64596 transitions. Word has length 322 [2018-11-06 21:41:12,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:41:12,495 INFO L480 AbstractCegarLoop]: Abstraction has 57727 states and 64596 transitions. [2018-11-06 21:41:12,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-06 21:41:12,495 INFO L276 IsEmpty]: Start isEmpty. Operand 57727 states and 64596 transitions. [2018-11-06 21:41:12,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2018-11-06 21:41:12,507 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:41:12,508 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:41:12,508 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:41:12,508 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:41:12,508 INFO L82 PathProgramCache]: Analyzing trace with hash 684799426, now seen corresponding path program 1 times [2018-11-06 21:41:12,509 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:41:12,509 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:41:12,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:41:12,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:41:12,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:41:12,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:41:13,017 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-06 21:41:13,367 WARN L179 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2018-11-06 21:41:14,056 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 250 proven. 83 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-11-06 21:41:14,056 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:41:14,057 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-06 21:41:14,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:41:14,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:41:14,171 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:41:15,325 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 53 proven. 333 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:41:15,344 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 21:41:15,345 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 14 [2018-11-06 21:41:15,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-06 21:41:15,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-06 21:41:15,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2018-11-06 21:41:15,346 INFO L87 Difference]: Start difference. First operand 57727 states and 64596 transitions. Second operand 15 states. [2018-11-06 21:41:56,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:41:56,555 INFO L93 Difference]: Finished difference Result 142486 states and 158143 transitions. [2018-11-06 21:41:56,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-11-06 21:41:56,555 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 370 [2018-11-06 21:41:56,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:41:56,649 INFO L225 Difference]: With dead ends: 142486 [2018-11-06 21:41:56,649 INFO L226 Difference]: Without dead ends: 84329 [2018-11-06 21:41:56,685 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 366 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=250, Invalid=680, Unknown=0, NotChecked=0, Total=930 [2018-11-06 21:41:56,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84329 states. [2018-11-06 21:41:57,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84329 to 77352. [2018-11-06 21:41:57,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77352 states. [2018-11-06 21:41:57,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77352 states to 77352 states and 84588 transitions. [2018-11-06 21:41:57,611 INFO L78 Accepts]: Start accepts. Automaton has 77352 states and 84588 transitions. Word has length 370 [2018-11-06 21:41:57,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:41:57,612 INFO L480 AbstractCegarLoop]: Abstraction has 77352 states and 84588 transitions. [2018-11-06 21:41:57,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-06 21:41:57,612 INFO L276 IsEmpty]: Start isEmpty. Operand 77352 states and 84588 transitions. [2018-11-06 21:41:57,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2018-11-06 21:41:57,622 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:41:57,623 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, 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, 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] [2018-11-06 21:41:57,623 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:41:57,623 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:41:57,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1432881550, now seen corresponding path program 1 times [2018-11-06 21:41:57,624 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:41:57,624 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:41:57,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:41:57,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:41:57,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:41:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:41:58,444 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 341 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-11-06 21:41:58,444 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:41:58,445 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 21:41:58,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:41:58,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:41:58,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:41:58,446 INFO L87 Difference]: Start difference. First operand 77352 states and 84588 transitions. Second operand 4 states. [2018-11-06 21:42:02,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:42:02,667 INFO L93 Difference]: Finished difference Result 167053 states and 183203 transitions. [2018-11-06 21:42:02,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:42:02,667 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 419 [2018-11-06 21:42:02,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:42:02,775 INFO L225 Difference]: With dead ends: 167053 [2018-11-06 21:42:02,775 INFO L226 Difference]: Without dead ends: 86703 [2018-11-06 21:42:02,825 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:42:02,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86703 states. [2018-11-06 21:42:03,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86703 to 78601. [2018-11-06 21:42:03,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78601 states. [2018-11-06 21:42:03,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78601 states to 78601 states and 84152 transitions. [2018-11-06 21:42:03,901 INFO L78 Accepts]: Start accepts. Automaton has 78601 states and 84152 transitions. Word has length 419 [2018-11-06 21:42:03,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:42:03,901 INFO L480 AbstractCegarLoop]: Abstraction has 78601 states and 84152 transitions. [2018-11-06 21:42:03,902 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:42:03,902 INFO L276 IsEmpty]: Start isEmpty. Operand 78601 states and 84152 transitions. [2018-11-06 21:42:03,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2018-11-06 21:42:03,916 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:42:03,916 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, 5, 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, 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] [2018-11-06 21:42:03,917 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:42:03,917 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:42:03,917 INFO L82 PathProgramCache]: Analyzing trace with hash -2028586934, now seen corresponding path program 1 times [2018-11-06 21:42:03,917 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:42:03,917 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:42:03,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:42:03,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:42:03,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:42:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:42:05,789 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 0 proven. 677 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:42:05,790 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:42:05,790 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-06 21:42:05,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:42:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:42:05,929 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:42:06,396 WARN L179 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 17 [2018-11-06 21:42:06,741 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 429 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2018-11-06 21:42:06,777 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 21:42:06,777 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 15 [2018-11-06 21:42:06,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-06 21:42:06,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-06 21:42:06,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2018-11-06 21:42:06,779 INFO L87 Difference]: Start difference. First operand 78601 states and 84152 transitions. Second operand 15 states. [2018-11-06 21:42:50,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:42:50,621 INFO L93 Difference]: Finished difference Result 193546 states and 207041 transitions. [2018-11-06 21:42:50,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-11-06 21:42:50,621 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 466 [2018-11-06 21:42:50,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:42:50,747 INFO L225 Difference]: With dead ends: 193546 [2018-11-06 21:42:50,747 INFO L226 Difference]: Without dead ends: 112808 [2018-11-06 21:42:50,784 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 482 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=352, Invalid=1370, Unknown=0, NotChecked=0, Total=1722 [2018-11-06 21:42:50,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112808 states. [2018-11-06 21:42:51,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112808 to 96508. [2018-11-06 21:42:51,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96508 states. [2018-11-06 21:42:51,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96508 states to 96508 states and 102420 transitions. [2018-11-06 21:42:51,731 INFO L78 Accepts]: Start accepts. Automaton has 96508 states and 102420 transitions. Word has length 466 [2018-11-06 21:42:51,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:42:51,731 INFO L480 AbstractCegarLoop]: Abstraction has 96508 states and 102420 transitions. [2018-11-06 21:42:51,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-06 21:42:51,732 INFO L276 IsEmpty]: Start isEmpty. Operand 96508 states and 102420 transitions. [2018-11-06 21:42:51,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2018-11-06 21:42:51,742 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:42:51,742 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:42:51,743 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:42:51,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:42:51,743 INFO L82 PathProgramCache]: Analyzing trace with hash -340999048, now seen corresponding path program 1 times [2018-11-06 21:42:51,743 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:42:51,743 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:42:51,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:42:51,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:42:51,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:42:51,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:42:52,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 64 proven. 921 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-11-06 21:42:52,769 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:42:52,769 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 21:42:52,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:42:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:42:52,921 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:42:54,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 372 proven. 431 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2018-11-06 21:42:54,332 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 21:42:54,333 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 13 [2018-11-06 21:42:54,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-06 21:42:54,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-06 21:42:54,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-11-06 21:42:54,334 INFO L87 Difference]: Start difference. First operand 96508 states and 102420 transitions. Second operand 13 states. Received shutdown request... [2018-11-06 21:43:05,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-06 21:43:05,869 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-06 21:43:05,874 WARN L205 ceAbstractionStarter]: Timeout [2018-11-06 21:43:05,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:43:05 BoogieIcfgContainer [2018-11-06 21:43:05,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 21:43:05,876 INFO L168 Benchmark]: Toolchain (without parser) took 236590.05 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -367.3 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-11-06 21:43:05,877 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 21:43:05,877 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1600.56 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-11-06 21:43:05,878 INFO L168 Benchmark]: Boogie Procedure Inliner took 596.03 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 713.0 MB). Free memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: -834.0 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. [2018-11-06 21:43:05,879 INFO L168 Benchmark]: Boogie Preprocessor took 300.57 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2018-11-06 21:43:05,880 INFO L168 Benchmark]: RCFGBuilder took 9269.19 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 491.0 MB). Peak memory consumption was 491.0 MB. Max. memory is 7.1 GB. [2018-11-06 21:43:05,880 INFO L168 Benchmark]: TraceAbstraction took 224816.51 ms. Allocated memory was 2.2 GB in the beginning and 3.9 GB in the end (delta: 1.7 GB). Free memory was 1.6 GB in the beginning and 1.8 GB in the end (delta: -190.4 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-11-06 21:43:05,885 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1600.56 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 596.03 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 713.0 MB). Free memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: -834.0 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 300.57 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9269.19 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 491.0 MB). Peak memory consumption was 491.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 224816.51 ms. Allocated memory was 2.2 GB in the beginning and 3.9 GB in the end (delta: 1.7 GB). Free memory was 1.6 GB in the beginning and 1.8 GB in the end (delta: -190.4 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 170]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 170). Cancelled while BasicCegarLoop was constructing difference of abstraction (96508states) and FLOYD_HOARE automaton (currently 17 states, 13 states before enhancement),while ReachableStatesComputation was computing reachable states (7841 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 591 locations, 1 error locations. TIMEOUT Result, 224.7s OverallTime, 12 OverallIterations, 6 TraceHistogramMax, 199.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4443 SDtfs, 33999 SDslu, 3864 SDs, 0 SdLazy, 87780 SolverSat, 6864 SolverUnsat, 45 SolverUnknown, 0 SolverNotchecked, 174.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2415 GetRequests, 2281 SyntacticMatches, 10 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 729 ImplicationChecksByTransitivity, 11.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96508occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 5.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 50768 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 15.3s InterpolantComputationTime, 5757 NumberOfCodeBlocks, 5757 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 5739 ConstructedInterpolants, 562 QuantifiedInterpolants, 18344181 SizeOfPredicates, 4 NumberOfNonLiveVariables, 3012 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 18 InterpolantComputations, 7 PerfectInterpolantSequences, 4129/7483 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown