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_label52_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 17:09:58,709 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 17:09:58,711 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 17:09:58,723 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 17:09:58,724 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 17:09:58,725 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 17:09:58,726 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 17:09:58,728 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 17:09:58,730 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 17:09:58,730 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 17:09:58,731 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 17:09:58,732 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 17:09:58,733 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 17:09:58,734 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 17:09:58,735 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 17:09:58,736 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 17:09:58,736 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 17:09:58,738 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 17:09:58,740 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 17:09:58,742 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 17:09:58,743 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 17:09:58,745 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 17:09:58,747 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 17:09:58,757 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 17:09:58,772 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 17:09:58,772 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 17:09:58,773 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 17:09:58,773 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 17:09:58,774 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 17:09:58,774 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 17:09:58,774 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 17:09:58,774 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 17:09:58,775 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 17:09:58,775 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 17:09:58,775 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 17:09:58,775 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 17:09:58,775 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 17:09:58,775 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 17:09:58,776 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 17:09:58,776 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 17:09:58,776 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 17:09:58,776 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 17:09:58,776 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 17:09:58,777 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 17:09:58,778 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 17:09:58,778 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 17:09:58,778 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 17:09:58,778 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 17:09:58,778 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 17:09:58,779 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 17:09:58,779 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 17:09:58,779 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 17:09:58,835 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 17:09:58,848 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 17:09:58,852 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 17:09:58,854 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 17:09:58,854 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 17:09:58,855 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label52_true-unreach-call.c [2018-10-24 17:09:58,917 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b3a003ac4/080b0e67a69041c28fbcbdb0042fabbc/FLAGc1a9cd58f [2018-10-24 17:09:59,814 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 17:09:59,816 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label52_true-unreach-call.c [2018-10-24 17:09:59,864 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b3a003ac4/080b0e67a69041c28fbcbdb0042fabbc/FLAGc1a9cd58f [2018-10-24 17:09:59,884 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b3a003ac4/080b0e67a69041c28fbcbdb0042fabbc [2018-10-24 17:09:59,899 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 17:09:59,900 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 17:09:59,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 17:09:59,902 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 17:09:59,909 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 17:09:59,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:09:59" (1/1) ... [2018-10-24 17:09:59,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ce3d116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:59, skipping insertion in model container [2018-10-24 17:09:59,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:09:59" (1/1) ... [2018-10-24 17:09:59,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 17:10:00,192 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 17:10:02,153 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 17:10:02,157 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 17:10:03,324 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 17:10:03,378 INFO L193 MainTranslator]: Completed translation [2018-10-24 17:10:03,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:10:03 WrapperNode [2018-10-24 17:10:03,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 17:10:03,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 17:10:03,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 17:10:03,380 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 17:10:03,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:10:03" (1/1) ... [2018-10-24 17:10:03,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:10:03" (1/1) ... [2018-10-24 17:10:04,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 17:10:04,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 17:10:04,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 17:10:04,511 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 17:10:04,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:10:03" (1/1) ... [2018-10-24 17:10:04,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:10:03" (1/1) ... [2018-10-24 17:10:04,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:10:03" (1/1) ... [2018-10-24 17:10:04,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:10:03" (1/1) ... [2018-10-24 17:10:04,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:10:03" (1/1) ... [2018-10-24 17:10:05,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:10:03" (1/1) ... [2018-10-24 17:10:05,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:10:03" (1/1) ... [2018-10-24 17:10:05,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 17:10:05,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 17:10:05,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 17:10:05,439 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 17:10:05,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:10:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 17:10:05,492 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 17:10:05,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 17:10:05,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 17:10:22,352 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 17:10:22,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:10:22 BoogieIcfgContainer [2018-10-24 17:10:22,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 17:10:22,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 17:10:22,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 17:10:22,361 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 17:10:22,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 05:09:59" (1/3) ... [2018-10-24 17:10:22,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38fc46d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:10:22, skipping insertion in model container [2018-10-24 17:10:22,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:10:03" (2/3) ... [2018-10-24 17:10:22,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38fc46d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:10:22, skipping insertion in model container [2018-10-24 17:10:22,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:10:22" (3/3) ... [2018-10-24 17:10:22,370 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label52_true-unreach-call.c [2018-10-24 17:10:22,380 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 17:10:22,395 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 17:10:22,412 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 17:10:22,464 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 17:10:22,464 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 17:10:22,464 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 17:10:22,465 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 17:10:22,465 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 17:10:22,465 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 17:10:22,465 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 17:10:22,465 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 17:10:22,465 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 17:10:22,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-24 17:10:22,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-10-24 17:10:22,529 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:10:22,530 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, 1] [2018-10-24 17:10:22,533 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:10:22,539 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:10:22,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1860758514, now seen corresponding path program 1 times [2018-10-24 17:10:22,541 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:10:22,542 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:10:22,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:10:22,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:10:22,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:10:22,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:10:22,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:10:22,997 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:10:22,997 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 17:10:23,002 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:10:23,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:10:23,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:10:23,020 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-24 17:10:55,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:10:55,020 INFO L93 Difference]: Finished difference Result 6406 states and 12224 transitions. [2018-10-24 17:10:55,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:10:55,022 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2018-10-24 17:10:55,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:10:55,085 INFO L225 Difference]: With dead ends: 6406 [2018-10-24 17:10:55,085 INFO L226 Difference]: Without dead ends: 4650 [2018-10-24 17:10:55,099 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:10:55,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4650 states. [2018-10-24 17:10:55,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4650 to 4611. [2018-10-24 17:10:55,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4611 states. [2018-10-24 17:10:55,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4611 states to 4611 states and 7301 transitions. [2018-10-24 17:10:55,305 INFO L78 Accepts]: Start accepts. Automaton has 4611 states and 7301 transitions. Word has length 56 [2018-10-24 17:10:55,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:10:55,306 INFO L481 AbstractCegarLoop]: Abstraction has 4611 states and 7301 transitions. [2018-10-24 17:10:55,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:10:55,307 INFO L276 IsEmpty]: Start isEmpty. Operand 4611 states and 7301 transitions. [2018-10-24 17:10:55,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-10-24 17:10:55,316 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:10:55,317 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:10:55,317 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:10:55,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:10:55,318 INFO L82 PathProgramCache]: Analyzing trace with hash 634495894, now seen corresponding path program 1 times [2018-10-24 17:10:55,318 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:10:55,318 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:10:55,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:10:55,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:10:55,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:10:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:10:55,753 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-24 17:10:55,985 WARN L179 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2018-10-24 17:10:56,706 WARN L179 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-10-24 17:10:56,790 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:10:56,791 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:10:56,791 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 17:10:56,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 17:10:56,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 17:10:56,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 17:10:56,793 INFO L87 Difference]: Start difference. First operand 4611 states and 7301 transitions. Second operand 6 states. [2018-10-24 17:11:34,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:11:34,111 INFO L93 Difference]: Finished difference Result 20180 states and 30824 transitions. [2018-10-24 17:11:34,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 17:11:34,112 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-10-24 17:11:34,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:11:34,178 INFO L225 Difference]: With dead ends: 20180 [2018-10-24 17:11:34,179 INFO L226 Difference]: Without dead ends: 15571 [2018-10-24 17:11:34,187 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-24 17:11:34,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15571 states. [2018-10-24 17:11:34,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15571 to 14198. [2018-10-24 17:11:34,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14198 states. [2018-10-24 17:11:34,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14198 states to 14198 states and 18990 transitions. [2018-10-24 17:11:34,452 INFO L78 Accepts]: Start accepts. Automaton has 14198 states and 18990 transitions. Word has length 124 [2018-10-24 17:11:34,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:11:34,453 INFO L481 AbstractCegarLoop]: Abstraction has 14198 states and 18990 transitions. [2018-10-24 17:11:34,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 17:11:34,453 INFO L276 IsEmpty]: Start isEmpty. Operand 14198 states and 18990 transitions. [2018-10-24 17:11:34,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2018-10-24 17:11:34,460 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:11:34,460 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, 3, 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] [2018-10-24 17:11:34,461 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:11:34,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:11:34,461 INFO L82 PathProgramCache]: Analyzing trace with hash 542808277, now seen corresponding path program 1 times [2018-10-24 17:11:34,461 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:11:34,462 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:11:34,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:11:34,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:11:34,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:11:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:11:35,457 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-10-24 17:11:35,457 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:11:35,457 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 17:11:35,458 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 17:11:35,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 17:11:35,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 17:11:35,459 INFO L87 Difference]: Start difference. First operand 14198 states and 18990 transitions. Second operand 7 states. [2018-10-24 17:12:13,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:12:13,548 INFO L93 Difference]: Finished difference Result 42065 states and 56298 transitions. [2018-10-24 17:12:13,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 17:12:13,550 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 332 [2018-10-24 17:12:13,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:12:13,622 INFO L225 Difference]: With dead ends: 42065 [2018-10-24 17:12:13,623 INFO L226 Difference]: Without dead ends: 27869 [2018-10-24 17:12:13,638 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-24 17:12:13,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27869 states. [2018-10-24 17:12:13,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27869 to 25134. [2018-10-24 17:12:13,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25134 states. [2018-10-24 17:12:13,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25134 states to 25134 states and 30401 transitions. [2018-10-24 17:12:13,995 INFO L78 Accepts]: Start accepts. Automaton has 25134 states and 30401 transitions. Word has length 332 [2018-10-24 17:12:13,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:12:13,996 INFO L481 AbstractCegarLoop]: Abstraction has 25134 states and 30401 transitions. [2018-10-24 17:12:13,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 17:12:13,996 INFO L276 IsEmpty]: Start isEmpty. Operand 25134 states and 30401 transitions. [2018-10-24 17:12:14,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2018-10-24 17:12:14,002 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:12:14,005 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, 3, 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] [2018-10-24 17:12:14,006 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:12:14,006 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:12:14,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1621976175, now seen corresponding path program 1 times [2018-10-24 17:12:14,006 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:12:14,007 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:12:14,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:12:14,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:12:14,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:12:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:12:14,579 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 107 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:12:14,580 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:12:14,580 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 17:12:14,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:12:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:12:14,722 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:12:14,942 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:12:14,975 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:12:14,976 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-24 17:12:14,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 17:12:14,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 17:12:14,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 17:12:14,980 INFO L87 Difference]: Start difference. First operand 25134 states and 30401 transitions. Second operand 5 states. [2018-10-24 17:12:57,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:12:57,329 INFO L93 Difference]: Finished difference Result 114900 states and 149450 transitions. [2018-10-24 17:12:57,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 17:12:57,335 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 360 [2018-10-24 17:12:57,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:12:57,473 INFO L225 Difference]: With dead ends: 114900 [2018-10-24 17:12:57,473 INFO L226 Difference]: Without dead ends: 80202 [2018-10-24 17:12:57,517 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 17:12:57,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80202 states. [2018-10-24 17:12:58,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80202 to 80104. [2018-10-24 17:12:58,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80104 states. [2018-10-24 17:12:59,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80104 states to 80104 states and 93292 transitions. [2018-10-24 17:12:59,005 INFO L78 Accepts]: Start accepts. Automaton has 80104 states and 93292 transitions. Word has length 360 [2018-10-24 17:12:59,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:12:59,005 INFO L481 AbstractCegarLoop]: Abstraction has 80104 states and 93292 transitions. [2018-10-24 17:12:59,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 17:12:59,006 INFO L276 IsEmpty]: Start isEmpty. Operand 80104 states and 93292 transitions. [2018-10-24 17:12:59,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2018-10-24 17:12:59,013 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:12:59,013 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:12:59,013 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:12:59,013 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:12:59,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1452214759, now seen corresponding path program 1 times [2018-10-24 17:12:59,014 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:12:59,014 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:12:59,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:12:59,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:12:59,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:12:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:12:59,507 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 107 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-24 17:12:59,508 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:12:59,508 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 17:12:59,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:12:59,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:12:59,612 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:12:59,701 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:12:59,723 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:12:59,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 17:12:59,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:12:59,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:12:59,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:12:59,725 INFO L87 Difference]: Start difference. First operand 80104 states and 93292 transitions. Second operand 4 states. [2018-10-24 17:13:25,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:13:25,049 INFO L93 Difference]: Finished difference Result 286225 states and 337230 transitions. [2018-10-24 17:13:25,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:13:25,049 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 370 [2018-10-24 17:13:25,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:13:25,346 INFO L225 Difference]: With dead ends: 286225 [2018-10-24 17:13:25,346 INFO L226 Difference]: Without dead ends: 207489 [2018-10-24 17:13:25,413 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:13:25,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207489 states. [2018-10-24 17:13:27,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207489 to 133370. [2018-10-24 17:13:27,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133370 states. [2018-10-24 17:13:27,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133370 states to 133370 states and 154665 transitions. [2018-10-24 17:13:27,161 INFO L78 Accepts]: Start accepts. Automaton has 133370 states and 154665 transitions. Word has length 370 [2018-10-24 17:13:27,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:13:27,161 INFO L481 AbstractCegarLoop]: Abstraction has 133370 states and 154665 transitions. [2018-10-24 17:13:27,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:13:27,161 INFO L276 IsEmpty]: Start isEmpty. Operand 133370 states and 154665 transitions. [2018-10-24 17:13:27,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2018-10-24 17:13:27,180 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:13:27,181 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, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:13:27,181 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:13:27,181 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:13:27,182 INFO L82 PathProgramCache]: Analyzing trace with hash -2034351412, now seen corresponding path program 1 times [2018-10-24 17:13:27,182 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:13:27,182 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:13:27,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:13:27,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:13:27,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:13:28,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:13:29,328 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 482 proven. 4 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2018-10-24 17:13:29,329 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:13:29,329 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 17:13:29,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:13:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:13:29,506 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:13:29,891 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 486 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2018-10-24 17:13:29,911 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:13:29,911 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-24 17:13:29,912 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 17:13:29,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 17:13:29,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 17:13:29,913 INFO L87 Difference]: Start difference. First operand 133370 states and 154665 transitions. Second operand 5 states. [2018-10-24 17:13:51,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:13:51,410 INFO L93 Difference]: Finished difference Result 287262 states and 331322 transitions. [2018-10-24 17:13:51,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 17:13:51,410 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 673 [2018-10-24 17:13:51,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:13:51,553 INFO L225 Difference]: With dead ends: 287262 [2018-10-24 17:13:51,553 INFO L226 Difference]: Without dead ends: 148394 [2018-10-24 17:13:51,613 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 679 GetRequests, 673 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 17:13:51,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148394 states. [2018-10-24 17:13:52,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148394 to 134722. [2018-10-24 17:13:52,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134722 states. [2018-10-24 17:13:52,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134722 states to 134722 states and 147923 transitions. [2018-10-24 17:13:52,669 INFO L78 Accepts]: Start accepts. Automaton has 134722 states and 147923 transitions. Word has length 673 [2018-10-24 17:13:52,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:13:52,669 INFO L481 AbstractCegarLoop]: Abstraction has 134722 states and 147923 transitions. [2018-10-24 17:13:52,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 17:13:52,669 INFO L276 IsEmpty]: Start isEmpty. Operand 134722 states and 147923 transitions. [2018-10-24 17:13:52,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 926 [2018-10-24 17:13:52,701 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:13:52,702 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, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:13:52,702 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:13:52,703 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:13:52,703 INFO L82 PathProgramCache]: Analyzing trace with hash -864849869, now seen corresponding path program 1 times [2018-10-24 17:13:52,703 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:13:52,703 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:13:52,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:13:52,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:13:52,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:13:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:13:54,842 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 482 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2018-10-24 17:13:54,842 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:13:54,842 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 17:13:54,844 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:13:54,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:13:54,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:13:54,844 INFO L87 Difference]: Start difference. First operand 134722 states and 147923 transitions. Second operand 4 states. Received shutdown request... [2018-10-24 17:13:55,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 17:13:55,258 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 17:13:55,263 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 17:13:55,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 05:13:55 BoogieIcfgContainer [2018-10-24 17:13:55,264 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 17:13:55,265 INFO L168 Benchmark]: Toolchain (without parser) took 235365.61 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 2.3 GB in the end (delta: -934.3 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-24 17:13:55,266 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 17:13:55,267 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3477.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 403.3 MB). Peak memory consumption was 403.3 MB. Max. memory is 7.1 GB. [2018-10-24 17:13:55,267 INFO L168 Benchmark]: Boogie Procedure Inliner took 1130.37 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 877.7 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 106.5 MB. Max. memory is 7.1 GB. [2018-10-24 17:13:55,268 INFO L168 Benchmark]: Boogie Preprocessor took 927.81 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 103.4 MB). Peak memory consumption was 103.4 MB. Max. memory is 7.1 GB. [2018-10-24 17:13:55,269 INFO L168 Benchmark]: RCFGBuilder took 16914.59 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 281.5 MB). Free memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: -384.4 MB). Peak memory consumption was 868.8 MB. Max. memory is 7.1 GB. [2018-10-24 17:13:55,270 INFO L168 Benchmark]: TraceAbstraction took 212906.80 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.2 GB). Free memory was 2.5 GB in the beginning and 2.3 GB in the end (delta: 118.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-24 17:13:55,275 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3477.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 403.3 MB). Peak memory consumption was 403.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1130.37 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 877.7 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 106.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 927.81 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 103.4 MB). Peak memory consumption was 103.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 16914.59 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 281.5 MB). Free memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: -384.4 MB). Peak memory consumption was 868.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 212906.80 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.2 GB). Free memory was 2.5 GB in the beginning and 2.3 GB in the end (delta: 118.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 181]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 181). Cancelled while BasicCegarLoop was constructing difference of abstraction (134722states) and FLOYD_HOARE automaton (currently 3 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (157 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 212.8s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 198.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8319 SDtfs, 42202 SDslu, 3608 SDs, 0 SdLazy, 83315 SolverSat, 17762 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 171.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1449 GetRequests, 1410 SyntacticMatches, 10 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134722occurred in iteration=6, 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: 5.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 92036 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 1.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 4243 NumberOfCodeBlocks, 4243 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 4233 ConstructedInterpolants, 0 QuantifiedInterpolants, 7743958 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1697 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 2967/3040 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown