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/Problem19_label09_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 20:59:40,150 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 20:59:40,155 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 20:59:40,172 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 20:59:40,172 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 20:59:40,176 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 20:59:40,177 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 20:59:40,179 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 20:59:40,180 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 20:59:40,181 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 20:59:40,182 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 20:59:40,182 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 20:59:40,183 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 20:59:40,184 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 20:59:40,185 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 20:59:40,186 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 20:59:40,187 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 20:59:40,189 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 20:59:40,190 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 20:59:40,192 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 20:59:40,193 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 20:59:40,194 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 20:59:40,196 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 20:59:40,206 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 20:59:40,234 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 20:59:40,235 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 20:59:40,237 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 20:59:40,237 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 20:59:40,238 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 20:59:40,238 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 20:59:40,238 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 20:59:40,238 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 20:59:40,238 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 20:59:40,239 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 20:59:40,240 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 20:59:40,240 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 20:59:40,240 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 20:59:40,240 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 20:59:40,240 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 20:59:40,241 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 20:59:40,241 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 20:59:40,241 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 20:59:40,241 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 20:59:40,241 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 20:59:40,243 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 20:59:40,243 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 20:59:40,243 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 20:59:40,243 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 20:59:40,244 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 20:59:40,244 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 20:59:40,244 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 20:59:40,244 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 20:59:40,311 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 20:59:40,327 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 20:59:40,332 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 20:59:40,334 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 20:59:40,335 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 20:59:40,335 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label09_true-unreach-call.c [2018-10-23 20:59:40,407 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/63a00762d/b4d7582e201d4e3c854a351fef404c1e/FLAG115209ae6 [2018-10-23 20:59:41,311 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 20:59:41,313 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label09_true-unreach-call.c [2018-10-23 20:59:41,366 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/63a00762d/b4d7582e201d4e3c854a351fef404c1e/FLAG115209ae6 [2018-10-23 20:59:41,390 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/63a00762d/b4d7582e201d4e3c854a351fef404c1e [2018-10-23 20:59:41,403 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 20:59:41,407 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 20:59:41,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 20:59:41,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 20:59:41,412 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 20:59:41,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:59:41" (1/1) ... [2018-10-23 20:59:41,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10e73541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:41, skipping insertion in model container [2018-10-23 20:59:41,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:59:41" (1/1) ... [2018-10-23 20:59:41,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 20:59:41,696 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 20:59:43,756 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 20:59:43,762 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 20:59:44,790 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 20:59:44,850 INFO L193 MainTranslator]: Completed translation [2018-10-23 20:59:44,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:44 WrapperNode [2018-10-23 20:59:44,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 20:59:44,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 20:59:44,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 20:59:44,853 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 20:59:44,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:44" (1/1) ... [2018-10-23 20:59:44,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:44" (1/1) ... [2018-10-23 20:59:45,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 20:59:45,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 20:59:45,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 20:59:45,989 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 20:59:46,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:44" (1/1) ... [2018-10-23 20:59:46,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:44" (1/1) ... [2018-10-23 20:59:46,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:44" (1/1) ... [2018-10-23 20:59:46,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:44" (1/1) ... [2018-10-23 20:59:46,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:44" (1/1) ... [2018-10-23 20:59:46,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:44" (1/1) ... [2018-10-23 20:59:46,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:44" (1/1) ... [2018-10-23 20:59:46,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 20:59:46,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 20:59:46,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 20:59:46,627 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 20:59:46,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:44" (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 20:59:46,701 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 20:59:46,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 20:59:46,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 21:00:03,780 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 21:00:03,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:00:03 BoogieIcfgContainer [2018-10-23 21:00:03,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 21:00:03,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 21:00:03,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 21:00:03,786 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 21:00:03,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:59:41" (1/3) ... [2018-10-23 21:00:03,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37bb302d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:00:03, skipping insertion in model container [2018-10-23 21:00:03,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:44" (2/3) ... [2018-10-23 21:00:03,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37bb302d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:00:03, skipping insertion in model container [2018-10-23 21:00:03,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:00:03" (3/3) ... [2018-10-23 21:00:03,790 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label09_true-unreach-call.c [2018-10-23 21:00:03,801 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 21:00:03,812 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 21:00:03,830 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 21:00:03,881 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 21:00:03,882 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 21:00:03,882 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 21:00:03,882 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 21:00:03,882 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 21:00:03,883 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 21:00:03,883 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 21:00:03,883 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 21:00:03,883 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 21:00:04,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-23 21:00:04,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-10-23 21:00:04,260 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:00:04,261 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] [2018-10-23 21:00:04,263 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:00:04,276 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:00:04,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1705034714, now seen corresponding path program 1 times [2018-10-23 21:00:04,279 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:00:04,279 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:00:04,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:00:04,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:00:04,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:00:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:00:04,826 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 21:00:04,829 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:00:04,829 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 21:00:04,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:00:04,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:00:04,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:00:04,853 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-23 21:00:27,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:00:27,997 INFO L93 Difference]: Finished difference Result 6324 states and 12081 transitions. [2018-10-23 21:00:27,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:00:27,999 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 50 [2018-10-23 21:00:28,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:00:28,062 INFO L225 Difference]: With dead ends: 6324 [2018-10-23 21:00:28,063 INFO L226 Difference]: Without dead ends: 4568 [2018-10-23 21:00:28,074 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 21:00:28,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4568 states. [2018-10-23 21:00:28,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4568 to 4563. [2018-10-23 21:00:28,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4563 states. [2018-10-23 21:00:28,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4563 states to 4563 states and 7487 transitions. [2018-10-23 21:00:28,297 INFO L78 Accepts]: Start accepts. Automaton has 4563 states and 7487 transitions. Word has length 50 [2018-10-23 21:00:28,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:00:28,298 INFO L481 AbstractCegarLoop]: Abstraction has 4563 states and 7487 transitions. [2018-10-23 21:00:28,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:00:28,299 INFO L276 IsEmpty]: Start isEmpty. Operand 4563 states and 7487 transitions. [2018-10-23 21:00:28,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-10-23 21:00:28,305 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:00:28,305 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:00:28,306 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:00:28,306 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:00:28,306 INFO L82 PathProgramCache]: Analyzing trace with hash 362906006, now seen corresponding path program 1 times [2018-10-23 21:00:28,306 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:00:28,306 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:00:28,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:00:28,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:00:28,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:00:28,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:00:28,513 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:00:28,513 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:00:28,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 21:00:28,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:00:28,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:00:28,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:00:28,516 INFO L87 Difference]: Start difference. First operand 4563 states and 7487 transitions. Second operand 4 states. [2018-10-23 21:00:53,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:00:53,288 INFO L93 Difference]: Finished difference Result 17544 states and 29003 transitions. [2018-10-23 21:00:53,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:00:53,288 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 128 [2018-10-23 21:00:53,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:00:53,349 INFO L225 Difference]: With dead ends: 17544 [2018-10-23 21:00:53,350 INFO L226 Difference]: Without dead ends: 12983 [2018-10-23 21:00:53,358 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 21:00:53,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12983 states. [2018-10-23 21:00:53,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12983 to 8662. [2018-10-23 21:00:53,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8662 states. [2018-10-23 21:00:53,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8662 states to 8662 states and 13841 transitions. [2018-10-23 21:00:53,545 INFO L78 Accepts]: Start accepts. Automaton has 8662 states and 13841 transitions. Word has length 128 [2018-10-23 21:00:53,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:00:53,546 INFO L481 AbstractCegarLoop]: Abstraction has 8662 states and 13841 transitions. [2018-10-23 21:00:53,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:00:53,547 INFO L276 IsEmpty]: Start isEmpty. Operand 8662 states and 13841 transitions. [2018-10-23 21:00:53,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-10-23 21:00:53,550 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:00:53,550 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:00:53,551 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:00:53,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:00:53,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1220319178, now seen corresponding path program 1 times [2018-10-23 21:00:53,551 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:00:53,551 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:00:53,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:00:53,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:00:53,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:00:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:00:53,945 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:00:53,946 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:00:53,946 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 21:00:53,946 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:00:53,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:00:53,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:00:53,949 INFO L87 Difference]: Start difference. First operand 8662 states and 13841 transitions. Second operand 4 states. [2018-10-23 21:01:11,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:01:11,890 INFO L93 Difference]: Finished difference Result 33991 states and 54526 transitions. [2018-10-23 21:01:11,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:01:11,892 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2018-10-23 21:01:11,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:01:11,967 INFO L225 Difference]: With dead ends: 33991 [2018-10-23 21:01:11,968 INFO L226 Difference]: Without dead ends: 25331 [2018-10-23 21:01:11,987 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 21:01:12,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25331 states. [2018-10-23 21:01:12,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25331 to 25321. [2018-10-23 21:01:12,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25321 states. [2018-10-23 21:01:12,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25321 states to 25321 states and 34467 transitions. [2018-10-23 21:01:12,590 INFO L78 Accepts]: Start accepts. Automaton has 25321 states and 34467 transitions. Word has length 148 [2018-10-23 21:01:12,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:01:12,591 INFO L481 AbstractCegarLoop]: Abstraction has 25321 states and 34467 transitions. [2018-10-23 21:01:12,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:01:12,591 INFO L276 IsEmpty]: Start isEmpty. Operand 25321 states and 34467 transitions. [2018-10-23 21:01:12,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-10-23 21:01:12,593 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:01:12,594 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:01:12,594 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:01:12,594 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:01:12,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1377368241, now seen corresponding path program 1 times [2018-10-23 21:01:12,595 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:01:12,595 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:01:12,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:01:12,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:01:12,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:01:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:01:12,908 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-23 21:01:13,189 WARN L179 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2018-10-23 21:01:13,451 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:01:13,451 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:01:13,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 21:01:13,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 21:01:13,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 21:01:13,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-23 21:01:13,452 INFO L87 Difference]: Start difference. First operand 25321 states and 34467 transitions. Second operand 6 states. [2018-10-23 21:01:44,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:01:44,470 INFO L93 Difference]: Finished difference Result 82151 states and 109854 transitions. [2018-10-23 21:01:44,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-23 21:01:44,471 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 155 [2018-10-23 21:01:44,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:01:44,570 INFO L225 Difference]: With dead ends: 82151 [2018-10-23 21:01:44,571 INFO L226 Difference]: Without dead ends: 56832 [2018-10-23 21:01:44,606 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-23 21:01:44,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56832 states. [2018-10-23 21:01:45,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56832 to 55390. [2018-10-23 21:01:45,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55390 states. [2018-10-23 21:01:45,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55390 states to 55390 states and 72762 transitions. [2018-10-23 21:01:45,384 INFO L78 Accepts]: Start accepts. Automaton has 55390 states and 72762 transitions. Word has length 155 [2018-10-23 21:01:45,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:01:45,385 INFO L481 AbstractCegarLoop]: Abstraction has 55390 states and 72762 transitions. [2018-10-23 21:01:45,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 21:01:45,385 INFO L276 IsEmpty]: Start isEmpty. Operand 55390 states and 72762 transitions. [2018-10-23 21:01:45,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-10-23 21:01:45,393 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:01:45,393 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:01:45,394 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:01:45,394 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:01:45,394 INFO L82 PathProgramCache]: Analyzing trace with hash -986324909, now seen corresponding path program 1 times [2018-10-23 21:01:45,394 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:01:45,395 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:01:45,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:01:45,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:01:45,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:01:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:01:45,945 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-10-23 21:01:45,945 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:01:45,946 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 21:01:45,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:01:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:01:46,107 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 21:01:46,303 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:01:46,333 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 21:01:46,333 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-23 21:01:46,334 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 21:01:46,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 21:01:46,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 21:01:46,335 INFO L87 Difference]: Start difference. First operand 55390 states and 72762 transitions. Second operand 5 states. [2018-10-23 21:02:12,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:02:12,346 INFO L93 Difference]: Finished difference Result 240734 states and 318643 transitions. [2018-10-23 21:02:12,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 21:02:12,347 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 286 [2018-10-23 21:02:12,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:02:12,671 INFO L225 Difference]: With dead ends: 240734 [2018-10-23 21:02:12,672 INFO L226 Difference]: Without dead ends: 185346 [2018-10-23 21:02:12,785 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 21:02:13,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185346 states. [2018-10-23 21:02:15,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185346 to 141467. [2018-10-23 21:02:15,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141467 states. [2018-10-23 21:02:15,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141467 states to 141467 states and 171476 transitions. [2018-10-23 21:02:15,432 INFO L78 Accepts]: Start accepts. Automaton has 141467 states and 171476 transitions. Word has length 286 [2018-10-23 21:02:15,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:02:15,434 INFO L481 AbstractCegarLoop]: Abstraction has 141467 states and 171476 transitions. [2018-10-23 21:02:15,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 21:02:15,435 INFO L276 IsEmpty]: Start isEmpty. Operand 141467 states and 171476 transitions. [2018-10-23 21:02:15,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2018-10-23 21:02:15,449 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:02:15,450 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:02:15,450 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:02:15,450 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:02:15,451 INFO L82 PathProgramCache]: Analyzing trace with hash -89499515, now seen corresponding path program 1 times [2018-10-23 21:02:15,451 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:02:15,451 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:02:15,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:02:15,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:02:15,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:02:15,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:02:16,122 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-10-23 21:02:16,123 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:02:16,123 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 21:02:16,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:02:16,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:02:16,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:02:16,125 INFO L87 Difference]: Start difference. First operand 141467 states and 171476 transitions. Second operand 4 states. [2018-10-23 21:02:35,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:02:35,387 INFO L93 Difference]: Finished difference Result 315713 states and 385092 transitions. [2018-10-23 21:02:35,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:02:35,387 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 517 [2018-10-23 21:02:35,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:02:35,648 INFO L225 Difference]: With dead ends: 315713 [2018-10-23 21:02:35,648 INFO L226 Difference]: Without dead ends: 174248 [2018-10-23 21:02:35,753 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 21:02:35,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174248 states. [2018-10-23 21:02:38,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174248 to 174237. [2018-10-23 21:02:38,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174237 states. [2018-10-23 21:02:38,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174237 states to 174237 states and 199055 transitions. [2018-10-23 21:02:38,514 INFO L78 Accepts]: Start accepts. Automaton has 174237 states and 199055 transitions. Word has length 517 [2018-10-23 21:02:38,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:02:38,515 INFO L481 AbstractCegarLoop]: Abstraction has 174237 states and 199055 transitions. [2018-10-23 21:02:38,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:02:38,515 INFO L276 IsEmpty]: Start isEmpty. Operand 174237 states and 199055 transitions. [2018-10-23 21:02:38,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 908 [2018-10-23 21:02:38,554 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:02:38,554 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:02:38,555 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:02:38,555 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:02:38,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1539725812, now seen corresponding path program 1 times [2018-10-23 21:02:38,556 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:02:38,556 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:02:38,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:02:38,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:02:38,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:02:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:02:39,708 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-10-23 21:02:39,713 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:02:39,713 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 21:02:39,715 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:02:39,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:02:39,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:02:39,715 INFO L87 Difference]: Start difference. First operand 174237 states and 199055 transitions. Second operand 4 states. [2018-10-23 21:03:06,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:03:06,634 INFO L93 Difference]: Finished difference Result 393561 states and 451275 transitions. [2018-10-23 21:03:06,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:03:06,644 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 907 [2018-10-23 21:03:06,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:03:06,934 INFO L225 Difference]: With dead ends: 393561 [2018-10-23 21:03:06,935 INFO L226 Difference]: Without dead ends: 219326 [2018-10-23 21:03:07,047 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:03:07,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219326 states. [2018-10-23 21:03:10,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219326 to 207017. [2018-10-23 21:03:10,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207017 states. [2018-10-23 21:03:10,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207017 states to 207017 states and 230210 transitions. [2018-10-23 21:03:10,202 INFO L78 Accepts]: Start accepts. Automaton has 207017 states and 230210 transitions. Word has length 907 [2018-10-23 21:03:10,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:03:10,203 INFO L481 AbstractCegarLoop]: Abstraction has 207017 states and 230210 transitions. [2018-10-23 21:03:10,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:03:10,204 INFO L276 IsEmpty]: Start isEmpty. Operand 207017 states and 230210 transitions. [2018-10-23 21:03:10,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1009 [2018-10-23 21:03:10,227 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:03:10,228 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:03:10,229 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:03:10,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:03:10,229 INFO L82 PathProgramCache]: Analyzing trace with hash -526540857, now seen corresponding path program 1 times [2018-10-23 21:03:10,229 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:03:10,229 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:03:10,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:03:10,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:03:10,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:03:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:03:11,177 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-10-23 21:03:11,773 WARN L179 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 21 [2018-10-23 21:03:15,982 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 331 proven. 457 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-10-23 21:03:15,983 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:03:15,983 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 21:03:15,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:03:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:03:16,250 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 21:03:17,875 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2018-10-23 21:03:17,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 21:03:17,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2018-10-23 21:03:17,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-23 21:03:17,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-23 21:03:17,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-10-23 21:03:17,900 INFO L87 Difference]: Start difference. First operand 207017 states and 230210 transitions. Second operand 10 states. Received shutdown request... [2018-10-23 21:03:31,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-23 21:03:31,380 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 21:03:31,387 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 21:03:31,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:03:31 BoogieIcfgContainer [2018-10-23 21:03:31,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 21:03:31,388 INFO L168 Benchmark]: Toolchain (without parser) took 229983.93 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.6 GB). Peak memory consumption was 399.9 MB. Max. memory is 7.1 GB. [2018-10-23 21:03:31,389 INFO L168 Benchmark]: CDTParser took 0.29 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. [2018-10-23 21:03:31,390 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3443.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 983.6 MB in the end (delta: 382.2 MB). Peak memory consumption was 382.2 MB. Max. memory is 7.1 GB. [2018-10-23 21:03:31,391 INFO L168 Benchmark]: Boogie Procedure Inliner took 1135.78 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 842.5 MB). Free memory was 983.6 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.2 MB. Max. memory is 7.1 GB. [2018-10-23 21:03:31,392 INFO L168 Benchmark]: Boogie Preprocessor took 637.24 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 103.0 MB). Peak memory consumption was 103.0 MB. Max. memory is 7.1 GB. [2018-10-23 21:03:31,392 INFO L168 Benchmark]: RCFGBuilder took 17154.75 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 255.9 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 524.1 MB). Peak memory consumption was 780.0 MB. Max. memory is 7.1 GB. [2018-10-23 21:03:31,393 INFO L168 Benchmark]: TraceAbstraction took 207604.90 ms. Allocated memory was 2.6 GB in the beginning and 3.5 GB in the end (delta: 875.6 MB). Free memory was 1.5 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 21:03:31,398 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 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 3443.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 983.6 MB in the end (delta: 382.2 MB). Peak memory consumption was 382.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1135.78 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 842.5 MB). Free memory was 983.6 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 637.24 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 103.0 MB). Peak memory consumption was 103.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17154.75 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 255.9 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 524.1 MB). Peak memory consumption was 780.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 207604.90 ms. Allocated memory was 2.6 GB in the beginning and 3.5 GB in the end (delta: 875.6 MB). Free memory was 1.5 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 163]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 163). Cancelled while BasicCegarLoop was constructing difference of abstraction (207017states) and FLOYD_HOARE automaton (currently 16 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (26178 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 207.5s OverallTime, 8 OverallIterations, 5 TraceHistogramMax, 184.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9009 SDtfs, 38075 SDslu, 3036 SDs, 0 SdLazy, 75657 SolverSat, 18650 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 155.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1355 GetRequests, 1312 SyntacticMatches, 7 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=207017occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 10.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 61977 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 4493 NumberOfCodeBlocks, 4493 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 4483 ConstructedInterpolants, 0 QuantifiedInterpolants, 10676774 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1515 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 2620/3082 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown