java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label47_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 16:24:49,081 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 16:24:49,084 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 16:24:49,101 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 16:24:49,102 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 16:24:49,103 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 16:24:49,105 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 16:24:49,107 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 16:24:49,110 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 16:24:49,111 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 16:24:49,112 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 16:24:49,114 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 16:24:49,115 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 16:24:49,118 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 16:24:49,125 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 16:24:49,125 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 16:24:49,128 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 16:24:49,130 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 16:24:49,134 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 16:24:49,135 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 16:24:49,138 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 16:24:49,139 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 16:24:49,141 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 16:24:49,154 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 16:24:49,154 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 16:24:49,155 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 16:24:49,156 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 16:24:49,156 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 16:24:49,171 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 16:24:49,171 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 16:24:49,172 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 16:24:49,172 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 16:24:49,173 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 16:24:49,173 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 16:24:49,173 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 16:24:49,173 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 16:24:49,173 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 16:24:49,174 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 16:24:49,174 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 16:24:49,174 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 16:24:49,174 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 16:24:49,174 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 16:24:49,174 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 16:24:49,175 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 16:24:49,175 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 16:24:49,175 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 16:24:49,175 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 16:24:49,175 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 16:24:49,176 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 16:24:49,176 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 16:24:49,176 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 16:24:49,176 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 16:24:49,176 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 16:24:49,177 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 16:24:49,177 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 16:24:49,177 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 16:24:49,220 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 16:24:49,233 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 16:24:49,238 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 16:24:49,239 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 16:24:49,240 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 16:24:49,240 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label47_true-unreach-call.c [2018-10-24 16:24:49,305 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a1016493b/6f3766f05d8244bcbbcd3df6dc1e82b4/FLAG95817754d [2018-10-24 16:24:50,094 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 16:24:50,095 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label47_true-unreach-call.c [2018-10-24 16:24:50,133 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a1016493b/6f3766f05d8244bcbbcd3df6dc1e82b4/FLAG95817754d [2018-10-24 16:24:50,153 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a1016493b/6f3766f05d8244bcbbcd3df6dc1e82b4 [2018-10-24 16:24:50,165 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 16:24:50,167 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 16:24:50,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 16:24:50,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 16:24:50,172 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 16:24:50,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:24:50" (1/1) ... [2018-10-24 16:24:50,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@488033a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:24:50, skipping insertion in model container [2018-10-24 16:24:50,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:24:50" (1/1) ... [2018-10-24 16:24:50,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 16:24:50,361 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 16:24:51,863 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:24:51,868 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 16:24:52,690 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:24:52,729 INFO L193 MainTranslator]: Completed translation [2018-10-24 16:24:52,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:24:52 WrapperNode [2018-10-24 16:24:52,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 16:24:52,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 16:24:52,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 16:24:52,734 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 16:24:52,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:24:52" (1/1) ... [2018-10-24 16:24:52,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:24:52" (1/1) ... [2018-10-24 16:24:53,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 16:24:53,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 16:24:53,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 16:24:53,526 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 16:24:53,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:24:52" (1/1) ... [2018-10-24 16:24:53,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:24:52" (1/1) ... [2018-10-24 16:24:53,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:24:52" (1/1) ... [2018-10-24 16:24:53,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:24:52" (1/1) ... [2018-10-24 16:24:53,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:24:52" (1/1) ... [2018-10-24 16:24:53,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:24:52" (1/1) ... [2018-10-24 16:24:53,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:24:52" (1/1) ... [2018-10-24 16:24:54,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 16:24:54,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 16:24:54,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 16:24:54,040 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 16:24:54,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:24:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 16:24:54,106 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 16:24:54,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 16:24:54,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 16:25:08,489 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 16:25:08,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:25:08 BoogieIcfgContainer [2018-10-24 16:25:08,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 16:25:08,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 16:25:08,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 16:25:08,495 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 16:25:08,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:24:50" (1/3) ... [2018-10-24 16:25:08,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea35c54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:25:08, skipping insertion in model container [2018-10-24 16:25:08,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:24:52" (2/3) ... [2018-10-24 16:25:08,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea35c54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:25:08, skipping insertion in model container [2018-10-24 16:25:08,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:25:08" (3/3) ... [2018-10-24 16:25:08,499 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label47_true-unreach-call.c [2018-10-24 16:25:08,509 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 16:25:08,520 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 16:25:08,537 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 16:25:08,584 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 16:25:08,585 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 16:25:08,585 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 16:25:08,585 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 16:25:08,585 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 16:25:08,585 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 16:25:08,586 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 16:25:08,586 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 16:25:08,586 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 16:25:08,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-10-24 16:25:08,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-10-24 16:25:08,634 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:25:08,637 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] [2018-10-24 16:25:08,640 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:25:08,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:25:08,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1934902334, now seen corresponding path program 1 times [2018-10-24 16:25:08,649 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:25:08,650 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:25:08,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:25:08,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:25:08,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:25:08,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:25:09,227 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-24 16:25:09,511 WARN L179 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2018-10-24 16:25:09,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:25:09,762 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:25:09,762 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:25:09,768 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 16:25:09,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 16:25:09,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:25:09,787 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 5 states. [2018-10-24 16:25:10,068 WARN L179 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-24 16:25:30,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:25:30,193 INFO L93 Difference]: Finished difference Result 4624 states and 8784 transitions. [2018-10-24 16:25:30,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 16:25:30,198 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2018-10-24 16:25:30,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:25:30,248 INFO L225 Difference]: With dead ends: 4624 [2018-10-24 16:25:30,248 INFO L226 Difference]: Without dead ends: 3515 [2018-10-24 16:25:30,259 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 16:25:30,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3515 states. [2018-10-24 16:25:30,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3515 to 3514. [2018-10-24 16:25:30,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3514 states. [2018-10-24 16:25:30,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3514 states to 3514 states and 5233 transitions. [2018-10-24 16:25:30,463 INFO L78 Accepts]: Start accepts. Automaton has 3514 states and 5233 transitions. Word has length 44 [2018-10-24 16:25:30,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:25:30,464 INFO L481 AbstractCegarLoop]: Abstraction has 3514 states and 5233 transitions. [2018-10-24 16:25:30,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 16:25:30,465 INFO L276 IsEmpty]: Start isEmpty. Operand 3514 states and 5233 transitions. [2018-10-24 16:25:30,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-10-24 16:25:30,477 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:25:30,478 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:25:30,478 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:25:30,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:25:30,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1885445779, now seen corresponding path program 1 times [2018-10-24 16:25:30,479 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:25:30,480 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:25:30,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:25:30,482 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:25:30,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:25:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:25:30,937 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-10-24 16:25:30,938 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:25:30,938 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:25:30,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:25:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:25:31,038 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:25:31,124 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-10-24 16:25:31,157 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:25:31,158 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-10-24 16:25:31,159 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 16:25:31,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 16:25:31,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:25:31,160 INFO L87 Difference]: Start difference. First operand 3514 states and 5233 transitions. Second operand 5 states. [2018-10-24 16:25:45,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:25:45,843 INFO L93 Difference]: Finished difference Result 9454 states and 15300 transitions. [2018-10-24 16:25:45,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:25:45,844 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2018-10-24 16:25:45,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:25:45,880 INFO L225 Difference]: With dead ends: 9454 [2018-10-24 16:25:45,880 INFO L226 Difference]: Without dead ends: 6730 [2018-10-24 16:25:45,885 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 169 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:25:45,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6730 states. [2018-10-24 16:25:46,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6730 to 6699. [2018-10-24 16:25:46,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6699 states. [2018-10-24 16:25:46,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6699 states to 6699 states and 9386 transitions. [2018-10-24 16:25:46,019 INFO L78 Accepts]: Start accepts. Automaton has 6699 states and 9386 transitions. Word has length 170 [2018-10-24 16:25:46,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:25:46,020 INFO L481 AbstractCegarLoop]: Abstraction has 6699 states and 9386 transitions. [2018-10-24 16:25:46,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 16:25:46,020 INFO L276 IsEmpty]: Start isEmpty. Operand 6699 states and 9386 transitions. [2018-10-24 16:25:46,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-10-24 16:25:46,027 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:25:46,028 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:25:46,028 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:25:46,028 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:25:46,028 INFO L82 PathProgramCache]: Analyzing trace with hash -811056578, now seen corresponding path program 1 times [2018-10-24 16:25:46,029 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:25:46,029 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:25:46,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:25:46,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:25:46,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:25:46,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:25:46,420 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:25:46,421 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:25:46,421 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:25:46,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:25:46,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:25:46,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:25:46,422 INFO L87 Difference]: Start difference. First operand 6699 states and 9386 transitions. Second operand 4 states. [2018-10-24 16:26:00,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:26:00,707 INFO L93 Difference]: Finished difference Result 16584 states and 24141 transitions. [2018-10-24 16:26:00,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:26:00,708 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 220 [2018-10-24 16:26:00,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:26:00,764 INFO L225 Difference]: With dead ends: 16584 [2018-10-24 16:26:00,765 INFO L226 Difference]: Without dead ends: 10675 [2018-10-24 16:26:00,775 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:26:00,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10675 states. [2018-10-24 16:26:00,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10675 to 9861. [2018-10-24 16:26:00,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9861 states. [2018-10-24 16:26:00,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9861 states to 9861 states and 13467 transitions. [2018-10-24 16:26:00,990 INFO L78 Accepts]: Start accepts. Automaton has 9861 states and 13467 transitions. Word has length 220 [2018-10-24 16:26:00,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:26:00,991 INFO L481 AbstractCegarLoop]: Abstraction has 9861 states and 13467 transitions. [2018-10-24 16:26:00,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:26:00,991 INFO L276 IsEmpty]: Start isEmpty. Operand 9861 states and 13467 transitions. [2018-10-24 16:26:00,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2018-10-24 16:26:00,998 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:26:00,999 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:26:00,999 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:26:00,999 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:26:01,000 INFO L82 PathProgramCache]: Analyzing trace with hash 136812175, now seen corresponding path program 1 times [2018-10-24 16:26:01,000 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:26:01,000 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:26:01,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:01,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:26:01,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:26:01,331 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-10-24 16:26:01,332 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:26:01,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:26:01,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:26:01,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:26:01,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:26:01,334 INFO L87 Difference]: Start difference. First operand 9861 states and 13467 transitions. Second operand 4 states. [2018-10-24 16:26:12,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:26:12,807 INFO L93 Difference]: Finished difference Result 33111 states and 46110 transitions. [2018-10-24 16:26:12,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:26:12,809 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 271 [2018-10-24 16:26:12,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:26:12,881 INFO L225 Difference]: With dead ends: 33111 [2018-10-24 16:26:12,881 INFO L226 Difference]: Without dead ends: 24040 [2018-10-24 16:26:12,898 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 [2018-10-24 16:26:12,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24040 states. [2018-10-24 16:26:13,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24040 to 24039. [2018-10-24 16:26:13,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24039 states. [2018-10-24 16:26:13,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24039 states to 24039 states and 30779 transitions. [2018-10-24 16:26:13,291 INFO L78 Accepts]: Start accepts. Automaton has 24039 states and 30779 transitions. Word has length 271 [2018-10-24 16:26:13,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:26:13,292 INFO L481 AbstractCegarLoop]: Abstraction has 24039 states and 30779 transitions. [2018-10-24 16:26:13,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:26:13,292 INFO L276 IsEmpty]: Start isEmpty. Operand 24039 states and 30779 transitions. [2018-10-24 16:26:13,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2018-10-24 16:26:13,301 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:26:13,301 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:26:13,302 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:26:13,302 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:26:13,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1185450294, now seen corresponding path program 1 times [2018-10-24 16:26:13,302 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:26:13,302 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:26:13,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:13,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:26:13,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:26:13,778 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-10-24 16:26:13,780 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:26:13,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:26:13,781 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:26:13,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:26:13,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:26:13,782 INFO L87 Difference]: Start difference. First operand 24039 states and 30779 transitions. Second operand 4 states. [2018-10-24 16:26:23,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:26:23,943 INFO L93 Difference]: Finished difference Result 46480 states and 59892 transitions. [2018-10-24 16:26:23,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:26:23,944 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 317 [2018-10-24 16:26:23,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:26:23,986 INFO L225 Difference]: With dead ends: 46480 [2018-10-24 16:26:23,986 INFO L226 Difference]: Without dead ends: 23231 [2018-10-24 16:26:24,012 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 [2018-10-24 16:26:24,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23231 states. [2018-10-24 16:26:24,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23231 to 23230. [2018-10-24 16:26:24,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23230 states. [2018-10-24 16:26:24,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23230 states to 23230 states and 26714 transitions. [2018-10-24 16:26:24,303 INFO L78 Accepts]: Start accepts. Automaton has 23230 states and 26714 transitions. Word has length 317 [2018-10-24 16:26:24,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:26:24,304 INFO L481 AbstractCegarLoop]: Abstraction has 23230 states and 26714 transitions. [2018-10-24 16:26:24,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:26:24,304 INFO L276 IsEmpty]: Start isEmpty. Operand 23230 states and 26714 transitions. [2018-10-24 16:26:24,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2018-10-24 16:26:24,313 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:26:24,314 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:26:24,314 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:26:24,314 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:26:24,314 INFO L82 PathProgramCache]: Analyzing trace with hash -957584690, now seen corresponding path program 1 times [2018-10-24 16:26:24,315 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:26:24,315 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:26:24,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:24,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:26:24,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:26:24,612 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-10-24 16:26:24,613 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:26:24,613 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:26:24,614 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 16:26:24,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 16:26:24,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:26:24,615 INFO L87 Difference]: Start difference. First operand 23230 states and 26714 transitions. Second operand 3 states. [2018-10-24 16:26:31,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:26:31,188 INFO L93 Difference]: Finished difference Result 45657 states and 52641 transitions. [2018-10-24 16:26:31,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:26:31,188 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 341 [2018-10-24 16:26:31,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:26:31,228 INFO L225 Difference]: With dead ends: 45657 [2018-10-24 16:26:31,228 INFO L226 Difference]: Without dead ends: 23217 [2018-10-24 16:26:31,261 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:26:31,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23217 states. [2018-10-24 16:26:31,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23217 to 23216. [2018-10-24 16:26:31,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23216 states. [2018-10-24 16:26:31,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23216 states to 23216 states and 25558 transitions. [2018-10-24 16:26:31,513 INFO L78 Accepts]: Start accepts. Automaton has 23216 states and 25558 transitions. Word has length 341 [2018-10-24 16:26:31,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:26:31,514 INFO L481 AbstractCegarLoop]: Abstraction has 23216 states and 25558 transitions. [2018-10-24 16:26:31,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 16:26:31,514 INFO L276 IsEmpty]: Start isEmpty. Operand 23216 states and 25558 transitions. [2018-10-24 16:26:31,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2018-10-24 16:26:31,529 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:26:31,530 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:26:31,530 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:26:31,530 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:26:31,531 INFO L82 PathProgramCache]: Analyzing trace with hash -195832860, now seen corresponding path program 1 times [2018-10-24 16:26:31,531 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:26:31,531 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:26:31,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:31,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:26:31,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:31,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:26:31,934 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 409 proven. 4 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2018-10-24 16:26:31,934 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:26:31,935 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:26:31,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:26:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:26:32,076 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:26:32,202 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 504 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2018-10-24 16:26:32,233 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:26:32,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 16:26:32,234 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:26:32,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:26:32,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:26:32,235 INFO L87 Difference]: Start difference. First operand 23216 states and 25558 transitions. Second operand 4 states. [2018-10-24 16:26:43,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:26:43,750 INFO L93 Difference]: Finished difference Result 81140 states and 90096 transitions. [2018-10-24 16:26:43,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:26:43,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 403 [2018-10-24 16:26:43,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:26:43,825 INFO L225 Difference]: With dead ends: 81140 [2018-10-24 16:26:43,826 INFO L226 Difference]: Without dead ends: 57119 [2018-10-24 16:26:43,843 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 403 SyntacticMatches, 1 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 16:26:43,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57119 states. [2018-10-24 16:26:44,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57119 to 38171. [2018-10-24 16:26:44,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38171 states. [2018-10-24 16:26:44,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38171 states to 38171 states and 41317 transitions. [2018-10-24 16:26:44,304 INFO L78 Accepts]: Start accepts. Automaton has 38171 states and 41317 transitions. Word has length 403 [2018-10-24 16:26:44,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:26:44,305 INFO L481 AbstractCegarLoop]: Abstraction has 38171 states and 41317 transitions. [2018-10-24 16:26:44,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:26:44,305 INFO L276 IsEmpty]: Start isEmpty. Operand 38171 states and 41317 transitions. [2018-10-24 16:26:44,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2018-10-24 16:26:44,327 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:26:44,328 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:26:44,328 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:26:44,329 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:26:44,329 INFO L82 PathProgramCache]: Analyzing trace with hash 265828620, now seen corresponding path program 1 times [2018-10-24 16:26:44,329 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:26:44,329 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:26:44,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:44,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:26:44,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:26:45,092 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-10-24 16:26:45,092 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:26:45,092 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:26:45,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 16:26:45,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 16:26:45,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:26:45,094 INFO L87 Difference]: Start difference. First operand 38171 states and 41317 transitions. Second operand 5 states. [2018-10-24 16:26:58,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:26:58,583 INFO L93 Difference]: Finished difference Result 125255 states and 136801 transitions. [2018-10-24 16:26:58,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 16:26:58,584 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 450 [2018-10-24 16:26:58,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:26:58,688 INFO L225 Difference]: With dead ends: 125255 [2018-10-24 16:26:58,689 INFO L226 Difference]: Without dead ends: 87874 [2018-10-24 16:26:58,719 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:26:58,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87874 states. [2018-10-24 16:26:59,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87874 to 85497. [2018-10-24 16:26:59,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85497 states. [2018-10-24 16:26:59,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85497 states to 85497 states and 91863 transitions. [2018-10-24 16:26:59,585 INFO L78 Accepts]: Start accepts. Automaton has 85497 states and 91863 transitions. Word has length 450 [2018-10-24 16:26:59,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:26:59,586 INFO L481 AbstractCegarLoop]: Abstraction has 85497 states and 91863 transitions. [2018-10-24 16:26:59,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 16:26:59,586 INFO L276 IsEmpty]: Start isEmpty. Operand 85497 states and 91863 transitions. [2018-10-24 16:26:59,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2018-10-24 16:26:59,615 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:26:59,615 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-10-24 16:26:59,616 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:26:59,616 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:26:59,616 INFO L82 PathProgramCache]: Analyzing trace with hash 2087992935, now seen corresponding path program 1 times [2018-10-24 16:26:59,616 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:26:59,617 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:26:59,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:59,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:26:59,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:27:00,011 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 546 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2018-10-24 16:27:00,011 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:27:00,011 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:27:00,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 16:27:00,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 16:27:00,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:27:00,013 INFO L87 Difference]: Start difference. First operand 85497 states and 91863 transitions. Second operand 5 states. [2018-10-24 16:27:19,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:27:19,719 INFO L93 Difference]: Finished difference Result 297337 states and 318949 transitions. [2018-10-24 16:27:19,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 16:27:19,720 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 506 [2018-10-24 16:27:19,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:27:19,963 INFO L225 Difference]: With dead ends: 297337 [2018-10-24 16:27:19,963 INFO L226 Difference]: Without dead ends: 212630 [2018-10-24 16:27:20,036 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:27:20,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212630 states. [2018-10-24 16:27:22,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212630 to 196690. [2018-10-24 16:27:22,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196690 states. [2018-10-24 16:27:22,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196690 states to 196690 states and 209076 transitions. [2018-10-24 16:27:22,691 INFO L78 Accepts]: Start accepts. Automaton has 196690 states and 209076 transitions. Word has length 506 [2018-10-24 16:27:22,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:27:22,692 INFO L481 AbstractCegarLoop]: Abstraction has 196690 states and 209076 transitions. [2018-10-24 16:27:22,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 16:27:22,692 INFO L276 IsEmpty]: Start isEmpty. Operand 196690 states and 209076 transitions. [2018-10-24 16:27:22,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2018-10-24 16:27:22,732 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:27:22,733 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:27:22,733 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:27:22,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:27:22,734 INFO L82 PathProgramCache]: Analyzing trace with hash -795647631, now seen corresponding path program 1 times [2018-10-24 16:27:22,734 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:27:22,734 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:27:22,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:27:22,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:27:22,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:27:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:27:23,422 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 276 proven. 464 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2018-10-24 16:27:23,423 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:27:23,423 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:27:23,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:27:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:27:23,598 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:27:24,249 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 640 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2018-10-24 16:27:24,272 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:27:24,272 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-10-24 16:27:24,273 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 16:27:24,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 16:27:24,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-24 16:27:24,274 INFO L87 Difference]: Start difference. First operand 196690 states and 209076 transitions. Second operand 8 states. [2018-10-24 16:28:05,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:28:05,490 INFO L93 Difference]: Finished difference Result 578813 states and 614931 transitions. [2018-10-24 16:28:05,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-24 16:28:05,491 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 635 [2018-10-24 16:28:05,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:28:05,959 INFO L225 Difference]: With dead ends: 578813 [2018-10-24 16:28:05,959 INFO L226 Difference]: Without dead ends: 360788 [2018-10-24 16:28:06,078 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 650 GetRequests, 633 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2018-10-24 16:28:06,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360788 states. [2018-10-24 16:28:10,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360788 to 318070. [2018-10-24 16:28:10,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318070 states. [2018-10-24 16:28:10,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318070 states to 318070 states and 334878 transitions. [2018-10-24 16:28:10,416 INFO L78 Accepts]: Start accepts. Automaton has 318070 states and 334878 transitions. Word has length 635 [2018-10-24 16:28:10,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:28:10,417 INFO L481 AbstractCegarLoop]: Abstraction has 318070 states and 334878 transitions. [2018-10-24 16:28:10,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 16:28:10,417 INFO L276 IsEmpty]: Start isEmpty. Operand 318070 states and 334878 transitions. [2018-10-24 16:28:10,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2018-10-24 16:28:10,463 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:28:10,464 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:28:10,464 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:28:10,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:28:10,465 INFO L82 PathProgramCache]: Analyzing trace with hash -781821835, now seen corresponding path program 1 times [2018-10-24 16:28:10,465 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:28:10,465 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:28:10,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:28:10,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:28:10,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:28:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:28:13,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1437 backedges. 1040 proven. 0 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2018-10-24 16:28:13,060 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:28:13,060 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:28:13,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:28:13,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:28:13,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:28:13,061 INFO L87 Difference]: Start difference. First operand 318070 states and 334878 transitions. Second operand 4 states. [2018-10-24 16:28:24,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:28:24,514 INFO L93 Difference]: Finished difference Result 601443 states and 633202 transitions. [2018-10-24 16:28:24,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:28:24,514 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 810 [2018-10-24 16:28:24,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:28:24,855 INFO L225 Difference]: With dead ends: 601443 [2018-10-24 16:28:24,855 INFO L226 Difference]: Without dead ends: 284163 [2018-10-24 16:28:24,983 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:28:25,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284163 states. [2018-10-24 16:28:30,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284163 to 263652. [2018-10-24 16:28:30,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263652 states. [2018-10-24 16:28:30,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263652 states to 263652 states and 274571 transitions. [2018-10-24 16:28:30,628 INFO L78 Accepts]: Start accepts. Automaton has 263652 states and 274571 transitions. Word has length 810 [2018-10-24 16:28:30,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:28:30,629 INFO L481 AbstractCegarLoop]: Abstraction has 263652 states and 274571 transitions. [2018-10-24 16:28:30,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:28:30,629 INFO L276 IsEmpty]: Start isEmpty. Operand 263652 states and 274571 transitions. [2018-10-24 16:28:30,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 845 [2018-10-24 16:28:30,669 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:28:30,670 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-10-24 16:28:30,670 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:28:30,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:28:30,671 INFO L82 PathProgramCache]: Analyzing trace with hash 270779265, now seen corresponding path program 1 times [2018-10-24 16:28:30,671 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:28:30,671 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:28:30,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:28:30,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:28:30,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:28:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:28:31,294 WARN L179 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 Received shutdown request... [2018-10-24 16:28:38,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1366 backedges. 927 proven. 0 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2018-10-24 16:28:38,688 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:28:38,689 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:28:38,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:28:38,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:28:38,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:28:38,690 INFO L87 Difference]: Start difference. First operand 263652 states and 274571 transitions. Second operand 4 states. [2018-10-24 16:28:38,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-24 16:28:38,691 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 16:28:38,698 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 16:28:38,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 04:28:38 BoogieIcfgContainer [2018-10-24 16:28:38,698 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 16:28:38,699 INFO L168 Benchmark]: Toolchain (without parser) took 228533.51 ms. Allocated memory was 1.5 GB in the beginning and 4.6 GB in the end (delta: 3.1 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-10-24 16:28:38,700 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 16:28:38,701 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2562.16 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-24 16:28:38,702 INFO L168 Benchmark]: Boogie Procedure Inliner took 792.23 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 837.8 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2018-10-24 16:28:38,703 INFO L168 Benchmark]: Boogie Preprocessor took 513.20 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 68.3 MB). Peak memory consumption was 68.3 MB. Max. memory is 7.1 GB. [2018-10-24 16:28:38,703 INFO L168 Benchmark]: RCFGBuilder took 14450.84 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 234.9 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 56.2 MB). Peak memory consumption was 594.3 MB. Max. memory is 7.1 GB. [2018-10-24 16:28:38,704 INFO L168 Benchmark]: TraceAbstraction took 210207.10 ms. Allocated memory was 2.6 GB in the beginning and 4.6 GB in the end (delta: 2.0 GB). Free memory was 2.1 GB in the beginning and 2.9 GB in the end (delta: -864.5 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-24 16:28:38,710 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 2562.16 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 792.23 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 837.8 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 513.20 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 68.3 MB). Peak memory consumption was 68.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 14450.84 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 234.9 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 56.2 MB). Peak memory consumption was 594.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210207.10 ms. Allocated memory was 2.6 GB in the beginning and 4.6 GB in the end (delta: 2.0 GB). Free memory was 2.1 GB in the beginning and 2.9 GB in the end (delta: -864.5 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 141]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 141). Cancelled while BasicCegarLoop was constructing difference of abstraction (263652states) and FLOYD_HOARE automaton (currently 2 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 210.1s OverallTime, 12 OverallIterations, 6 TraceHistogramMax, 176.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9231 SDtfs, 37989 SDslu, 3672 SDs, 0 SdLazy, 69863 SolverSat, 18706 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 143.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1267 GetRequests, 1218 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=318070occurred in iteration=10, 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: 15.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 101343 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 6219 NumberOfCodeBlocks, 6219 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 6204 ConstructedInterpolants, 90 QuantifiedInterpolants, 7788439 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1613 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 7479/7951 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown