java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label47_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 19:45:16,536 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 19:45:16,539 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 19:45:16,555 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 19:45:16,555 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 19:45:16,557 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 19:45:16,559 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 19:45:16,561 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 19:45:16,566 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 19:45:16,575 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 19:45:16,576 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 19:45:16,576 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 19:45:16,578 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 19:45:16,579 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 19:45:16,583 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 19:45:16,584 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 19:45:16,584 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 19:45:16,588 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 19:45:16,590 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 19:45:16,595 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 19:45:16,597 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 19:45:16,599 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 19:45:16,603 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 19:45:16,603 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 19:45:16,603 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 19:45:16,604 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 19:45:16,605 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 19:45:16,607 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 19:45:16,608 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 19:45:16,609 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 19:45:16,609 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 19:45:16,610 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-06 19:45:16,616 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 19:45:16,642 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 19:45:16,643 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 19:45:16,644 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 19:45:16,644 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 19:45:16,644 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 19:45:16,645 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 19:45:16,646 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 19:45:16,646 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 19:45:16,646 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 19:45:16,647 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 19:45:16,647 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 19:45:16,647 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 19:45:16,647 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 19:45:16,647 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 19:45:16,648 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 19:45:16,648 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 19:45:16,649 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 19:45:16,649 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 19:45:16,649 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 19:45:16,649 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 19:45:16,649 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 19:45:16,650 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 19:45:16,650 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 19:45:16,650 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 19:45:16,650 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 19:45:16,650 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 19:45:16,652 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 19:45:16,652 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 19:45:16,709 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 19:45:16,721 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 19:45:16,727 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 19:45:16,729 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 19:45:16,729 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 19:45:16,730 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label47_false-unreach-call.c [2018-11-06 19:45:16,813 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7a6cc754/8a4d6c7b42e344daa1ba0190a512c1e2/FLAGdd5696198 [2018-11-06 19:45:17,721 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 19:45:17,722 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label47_false-unreach-call.c [2018-11-06 19:45:17,765 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7a6cc754/8a4d6c7b42e344daa1ba0190a512c1e2/FLAGdd5696198 [2018-11-06 19:45:17,779 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7a6cc754/8a4d6c7b42e344daa1ba0190a512c1e2 [2018-11-06 19:45:17,791 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 19:45:17,792 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 19:45:17,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 19:45:17,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 19:45:17,797 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 19:45:17,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:45:17" (1/1) ... [2018-11-06 19:45:17,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25ab8b3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:17, skipping insertion in model container [2018-11-06 19:45:17,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:45:17" (1/1) ... [2018-11-06 19:45:17,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 19:45:18,078 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 19:45:20,030 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:45:20,035 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 19:45:21,241 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:45:21,299 INFO L193 MainTranslator]: Completed translation [2018-11-06 19:45:21,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:21 WrapperNode [2018-11-06 19:45:21,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 19:45:21,301 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 19:45:21,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 19:45:21,302 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 19:45:21,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:21" (1/1) ... [2018-11-06 19:45:21,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:21" (1/1) ... [2018-11-06 19:45:22,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 19:45:22,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 19:45:22,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 19:45:22,347 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 19:45:22,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:21" (1/1) ... [2018-11-06 19:45:22,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:21" (1/1) ... [2018-11-06 19:45:22,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:21" (1/1) ... [2018-11-06 19:45:22,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:21" (1/1) ... [2018-11-06 19:45:22,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:21" (1/1) ... [2018-11-06 19:45:22,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:21" (1/1) ... [2018-11-06 19:45:22,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:21" (1/1) ... [2018-11-06 19:45:23,088 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 19:45:23,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 19:45:23,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 19:45:23,090 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 19:45:23,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 19:45:23,165 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 19:45:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 19:45:23,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 19:45:40,100 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 19:45:40,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:45:40 BoogieIcfgContainer [2018-11-06 19:45:40,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 19:45:40,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 19:45:40,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 19:45:40,106 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 19:45:40,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:45:17" (1/3) ... [2018-11-06 19:45:40,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4262a79a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:45:40, skipping insertion in model container [2018-11-06 19:45:40,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:45:21" (2/3) ... [2018-11-06 19:45:40,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4262a79a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:45:40, skipping insertion in model container [2018-11-06 19:45:40,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:45:40" (3/3) ... [2018-11-06 19:45:40,110 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label47_false-unreach-call.c [2018-11-06 19:45:40,121 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 19:45:40,132 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 19:45:40,152 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 19:45:40,204 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 19:45:40,205 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 19:45:40,205 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 19:45:40,205 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 19:45:40,206 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 19:45:40,206 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 19:45:40,206 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 19:45:40,206 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 19:45:40,206 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 19:45:40,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-11-06 19:45:40,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-06 19:45:40,283 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:45:40,285 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:45:40,287 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:45:40,295 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:45:40,296 INFO L82 PathProgramCache]: Analyzing trace with hash 384191218, now seen corresponding path program 1 times [2018-11-06 19:45:40,298 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:45:40,298 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:45:40,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:45:40,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:45:40,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:45:40,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:45:40,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:45:40,650 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:45:40,651 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:45:40,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:45:40,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:45:40,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:45:40,678 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-11-06 19:46:01,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:46:01,908 INFO L93 Difference]: Finished difference Result 6414 states and 12256 transitions. [2018-11-06 19:46:01,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:46:01,911 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-06 19:46:01,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:46:02,060 INFO L225 Difference]: With dead ends: 6414 [2018-11-06 19:46:02,060 INFO L226 Difference]: Without dead ends: 4658 [2018-11-06 19:46:02,075 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:46:02,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4658 states. [2018-11-06 19:46:02,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4658 to 4577. [2018-11-06 19:46:02,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4577 states. [2018-11-06 19:46:02,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4577 states to 4577 states and 7450 transitions. [2018-11-06 19:46:02,306 INFO L78 Accepts]: Start accepts. Automaton has 4577 states and 7450 transitions. Word has length 9 [2018-11-06 19:46:02,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:46:02,307 INFO L480 AbstractCegarLoop]: Abstraction has 4577 states and 7450 transitions. [2018-11-06 19:46:02,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:46:02,308 INFO L276 IsEmpty]: Start isEmpty. Operand 4577 states and 7450 transitions. [2018-11-06 19:46:02,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-11-06 19:46:02,312 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:46:02,313 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-06 19:46:02,313 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:46:02,313 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:46:02,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1234321850, now seen corresponding path program 1 times [2018-11-06 19:46:02,314 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:46:02,314 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:46:02,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:46:02,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:46:02,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:46:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:46:02,720 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-11-06 19:46:02,951 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 18 [2018-11-06 19:46:03,475 WARN L179 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 23 [2018-11-06 19:46:03,660 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 4 [2018-11-06 19:46:03,813 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:46:03,814 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:46:03,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-06 19:46:03,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 19:46:03,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 19:46:03,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-06 19:46:03,817 INFO L87 Difference]: Start difference. First operand 4577 states and 7450 transitions. Second operand 6 states. [2018-11-06 19:46:03,990 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-11-06 19:46:31,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:46:31,624 INFO L93 Difference]: Finished difference Result 17372 states and 27392 transitions. [2018-11-06 19:46:31,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-06 19:46:31,626 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 81 [2018-11-06 19:46:31,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:46:31,693 INFO L225 Difference]: With dead ends: 17372 [2018-11-06 19:46:31,694 INFO L226 Difference]: Without dead ends: 12797 [2018-11-06 19:46:31,702 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-11-06 19:46:31,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12797 states. [2018-11-06 19:46:31,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12797 to 11422. [2018-11-06 19:46:31,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11422 states. [2018-11-06 19:46:31,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11422 states to 11422 states and 16533 transitions. [2018-11-06 19:46:31,928 INFO L78 Accepts]: Start accepts. Automaton has 11422 states and 16533 transitions. Word has length 81 [2018-11-06 19:46:31,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:46:31,928 INFO L480 AbstractCegarLoop]: Abstraction has 11422 states and 16533 transitions. [2018-11-06 19:46:31,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 19:46:31,929 INFO L276 IsEmpty]: Start isEmpty. Operand 11422 states and 16533 transitions. [2018-11-06 19:46:31,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-11-06 19:46:31,937 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:46:31,938 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:46:31,938 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:46:31,939 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:46:31,939 INFO L82 PathProgramCache]: Analyzing trace with hash -2116023050, now seen corresponding path program 1 times [2018-11-06 19:46:31,939 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:46:31,939 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:46:31,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:46:31,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:46:31,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:46:32,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:46:32,583 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-11-06 19:46:32,910 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 26 [2018-11-06 19:46:33,121 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-06 19:46:33,121 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:46:33,122 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-06 19:46:33,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-06 19:46:33,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-06 19:46:33,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-06 19:46:33,124 INFO L87 Difference]: Start difference. First operand 11422 states and 16533 transitions. Second operand 7 states. [2018-11-06 19:47:05,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:47:05,273 INFO L93 Difference]: Finished difference Result 33784 states and 50256 transitions. [2018-11-06 19:47:05,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 19:47:05,274 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 286 [2018-11-06 19:47:05,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:47:05,342 INFO L225 Difference]: With dead ends: 33784 [2018-11-06 19:47:05,342 INFO L226 Difference]: Without dead ends: 22364 [2018-11-06 19:47:05,355 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-11-06 19:47:05,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22364 states. [2018-11-06 19:47:05,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22364 to 18262. [2018-11-06 19:47:05,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18262 states. [2018-11-06 19:47:05,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18262 states to 18262 states and 23704 transitions. [2018-11-06 19:47:05,695 INFO L78 Accepts]: Start accepts. Automaton has 18262 states and 23704 transitions. Word has length 286 [2018-11-06 19:47:05,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:47:05,697 INFO L480 AbstractCegarLoop]: Abstraction has 18262 states and 23704 transitions. [2018-11-06 19:47:05,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-06 19:47:05,697 INFO L276 IsEmpty]: Start isEmpty. Operand 18262 states and 23704 transitions. [2018-11-06 19:47:05,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2018-11-06 19:47:05,701 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:47:05,701 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:47:05,702 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:47:05,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:47:05,702 INFO L82 PathProgramCache]: Analyzing trace with hash -754898288, now seen corresponding path program 1 times [2018-11-06 19:47:05,702 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:47:05,703 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:47:05,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:47:05,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:47:05,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:47:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:47:06,242 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-11-06 19:47:06,243 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:47:06,243 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:47:06,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:47:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:47:06,385 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:47:06,497 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:47:06,527 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:47:06,527 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-11-06 19:47:06,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:47:06,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:47:06,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:47:06,529 INFO L87 Difference]: Start difference. First operand 18262 states and 23704 transitions. Second operand 4 states. [2018-11-06 19:47:24,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:47:24,284 INFO L93 Difference]: Finished difference Result 65436 states and 86915 transitions. [2018-11-06 19:47:24,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:47:24,285 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 314 [2018-11-06 19:47:24,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:47:24,384 INFO L225 Difference]: With dead ends: 65436 [2018-11-06 19:47:24,384 INFO L226 Difference]: Without dead ends: 47176 [2018-11-06 19:47:24,409 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:47:24,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47176 states. [2018-11-06 19:47:24,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47176 to 29184. [2018-11-06 19:47:24,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29184 states. [2018-11-06 19:47:24,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29184 states to 29184 states and 38898 transitions. [2018-11-06 19:47:24,976 INFO L78 Accepts]: Start accepts. Automaton has 29184 states and 38898 transitions. Word has length 314 [2018-11-06 19:47:24,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:47:24,977 INFO L480 AbstractCegarLoop]: Abstraction has 29184 states and 38898 transitions. [2018-11-06 19:47:24,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:47:24,977 INFO L276 IsEmpty]: Start isEmpty. Operand 29184 states and 38898 transitions. [2018-11-06 19:47:24,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2018-11-06 19:47:24,984 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:47:24,984 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:47:24,985 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:47:24,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:47:24,985 INFO L82 PathProgramCache]: Analyzing trace with hash 220115451, now seen corresponding path program 1 times [2018-11-06 19:47:24,985 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:47:24,986 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:47:24,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:47:24,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:47:24,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:47:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:47:25,513 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:47:25,513 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:47:25,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:47:25,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:47:25,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:47:25,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:47:25,516 INFO L87 Difference]: Start difference. First operand 29184 states and 38898 transitions. Second operand 4 states. [2018-11-06 19:47:39,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:47:39,242 INFO L93 Difference]: Finished difference Result 76143 states and 103678 transitions. [2018-11-06 19:47:39,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:47:39,243 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 343 [2018-11-06 19:47:39,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:47:39,326 INFO L225 Difference]: With dead ends: 76143 [2018-11-06 19:47:39,326 INFO L226 Difference]: Without dead ends: 45594 [2018-11-06 19:47:39,362 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:47:39,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45594 states. [2018-11-06 19:47:39,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45594 to 45589. [2018-11-06 19:47:39,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45589 states. [2018-11-06 19:47:39,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45589 states to 45589 states and 58148 transitions. [2018-11-06 19:47:39,906 INFO L78 Accepts]: Start accepts. Automaton has 45589 states and 58148 transitions. Word has length 343 [2018-11-06 19:47:39,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:47:39,907 INFO L480 AbstractCegarLoop]: Abstraction has 45589 states and 58148 transitions. [2018-11-06 19:47:39,907 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:47:39,907 INFO L276 IsEmpty]: Start isEmpty. Operand 45589 states and 58148 transitions. [2018-11-06 19:47:39,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2018-11-06 19:47:39,914 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:47:39,914 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:47:39,914 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:47:39,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:47:39,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1285651964, now seen corresponding path program 1 times [2018-11-06 19:47:39,915 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:47:39,915 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:47:39,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:47:39,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:47:39,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:47:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:47:40,470 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 13 proven. 65 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-11-06 19:47:40,471 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:47:40,471 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:47:40,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:47:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:47:40,616 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:47:41,151 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:47:41,182 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:47:41,182 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-11-06 19:47:41,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 19:47:41,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 19:47:41,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:47:41,185 INFO L87 Difference]: Start difference. First operand 45589 states and 58148 transitions. Second operand 5 states. [2018-11-06 19:48:06,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:48:06,141 INFO L93 Difference]: Finished difference Result 173487 states and 223144 transitions. [2018-11-06 19:48:06,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 19:48:06,144 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 368 [2018-11-06 19:48:06,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:48:06,295 INFO L225 Difference]: With dead ends: 173487 [2018-11-06 19:48:06,295 INFO L226 Difference]: Without dead ends: 121063 [2018-11-06 19:48:06,336 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-06 19:48:06,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121063 states. [2018-11-06 19:48:07,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121063 to 120977. [2018-11-06 19:48:07,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120977 states. [2018-11-06 19:48:07,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120977 states to 120977 states and 139944 transitions. [2018-11-06 19:48:07,646 INFO L78 Accepts]: Start accepts. Automaton has 120977 states and 139944 transitions. Word has length 368 [2018-11-06 19:48:07,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:48:07,646 INFO L480 AbstractCegarLoop]: Abstraction has 120977 states and 139944 transitions. [2018-11-06 19:48:07,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 19:48:07,647 INFO L276 IsEmpty]: Start isEmpty. Operand 120977 states and 139944 transitions. [2018-11-06 19:48:07,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2018-11-06 19:48:07,657 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:48:07,657 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:48:07,657 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:48:07,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:48:07,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1102712714, now seen corresponding path program 1 times [2018-11-06 19:48:07,658 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:48:07,658 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:48:07,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:48:07,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:48:07,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:48:07,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:48:08,053 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2018-11-06 19:48:08,053 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:48:08,053 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:48:08,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:48:08,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:48:08,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:48:08,055 INFO L87 Difference]: Start difference. First operand 120977 states and 139944 transitions. Second operand 3 states. [2018-11-06 19:48:19,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:48:19,929 INFO L93 Difference]: Finished difference Result 281651 states and 330138 transitions. [2018-11-06 19:48:19,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:48:19,930 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 465 [2018-11-06 19:48:19,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:48:20,139 INFO L225 Difference]: With dead ends: 281651 [2018-11-06 19:48:20,139 INFO L226 Difference]: Without dead ends: 162042 [2018-11-06 19:48:20,222 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:48:20,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162042 states. [2018-11-06 19:48:22,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162042 to 161969. [2018-11-06 19:48:22,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161969 states. [2018-11-06 19:48:22,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161969 states to 161969 states and 185040 transitions. [2018-11-06 19:48:22,650 INFO L78 Accepts]: Start accepts. Automaton has 161969 states and 185040 transitions. Word has length 465 [2018-11-06 19:48:22,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:48:22,651 INFO L480 AbstractCegarLoop]: Abstraction has 161969 states and 185040 transitions. [2018-11-06 19:48:22,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:48:22,651 INFO L276 IsEmpty]: Start isEmpty. Operand 161969 states and 185040 transitions. [2018-11-06 19:48:22,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2018-11-06 19:48:22,673 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:48:22,674 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:48:22,674 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:48:22,674 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:48:22,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1420902701, now seen corresponding path program 1 times [2018-11-06 19:48:22,675 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:48:22,675 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:48:22,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:48:22,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:48:22,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:48:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:48:23,381 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2018-11-06 19:48:23,382 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:48:23,382 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:48:23,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:48:23,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:48:23,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:48:23,384 INFO L87 Difference]: Start difference. First operand 161969 states and 185040 transitions. Second operand 3 states. [2018-11-06 19:48:36,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:48:36,513 INFO L93 Difference]: Finished difference Result 355434 states and 409699 transitions. [2018-11-06 19:48:36,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:48:36,513 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 710 [2018-11-06 19:48:36,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:48:36,709 INFO L225 Difference]: With dead ends: 355434 [2018-11-06 19:48:36,710 INFO L226 Difference]: Without dead ends: 193462 [2018-11-06 19:48:36,762 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:48:36,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193462 states. [2018-11-06 19:48:38,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193462 to 193389. [2018-11-06 19:48:38,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193389 states. [2018-11-06 19:48:38,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193389 states to 193389 states and 218216 transitions. [2018-11-06 19:48:38,454 INFO L78 Accepts]: Start accepts. Automaton has 193389 states and 218216 transitions. Word has length 710 [2018-11-06 19:48:38,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:48:38,455 INFO L480 AbstractCegarLoop]: Abstraction has 193389 states and 218216 transitions. [2018-11-06 19:48:38,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:48:38,455 INFO L276 IsEmpty]: Start isEmpty. Operand 193389 states and 218216 transitions. [2018-11-06 19:48:38,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 839 [2018-11-06 19:48:38,469 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:48:38,469 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:48:38,470 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:48:38,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:48:38,470 INFO L82 PathProgramCache]: Analyzing trace with hash -58719795, now seen corresponding path program 1 times [2018-11-06 19:48:38,470 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:48:38,470 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:48:38,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:48:38,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:48:38,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:48:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:48:41,074 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 490 proven. 4 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-06 19:48:41,074 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:48:41,075 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:48:41,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:48:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:48:41,285 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:48:42,841 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 494 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-06 19:48:42,880 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:48:42,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-11-06 19:48:42,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 19:48:42,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 19:48:42,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:48:42,883 INFO L87 Difference]: Start difference. First operand 193389 states and 218216 transitions. Second operand 5 states. [2018-11-06 19:49:02,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:49:02,014 INFO L93 Difference]: Finished difference Result 419563 states and 471384 transitions. [2018-11-06 19:49:02,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-06 19:49:02,015 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 838 [2018-11-06 19:49:02,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:49:02,287 INFO L225 Difference]: With dead ends: 419563 [2018-11-06 19:49:02,287 INFO L226 Difference]: Without dead ends: 216606 [2018-11-06 19:49:02,403 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 844 GetRequests, 838 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-06 19:49:02,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216606 states. [2018-11-06 19:49:05,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216606 to 212504. [2018-11-06 19:49:05,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212504 states. [2018-11-06 19:49:07,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212504 states to 212504 states and 227768 transitions. [2018-11-06 19:49:07,685 INFO L78 Accepts]: Start accepts. Automaton has 212504 states and 227768 transitions. Word has length 838 [2018-11-06 19:49:07,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:49:07,686 INFO L480 AbstractCegarLoop]: Abstraction has 212504 states and 227768 transitions. [2018-11-06 19:49:07,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 19:49:07,686 INFO L276 IsEmpty]: Start isEmpty. Operand 212504 states and 227768 transitions. [2018-11-06 19:49:07,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1000 [2018-11-06 19:49:07,710 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:49:07,711 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:49:07,711 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:49:07,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:49:07,712 INFO L82 PathProgramCache]: Analyzing trace with hash 823887130, now seen corresponding path program 1 times [2018-11-06 19:49:07,712 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:49:07,712 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:49:07,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:49:07,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:49:07,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:49:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-11-06 19:49:08,236 WARN L187 SmtUtils]: Removed 1 from assertion stack [2018-11-06 19:49:08,237 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-06 19:49:08,242 WARN L205 ceAbstractionStarter]: Timeout [2018-11-06 19:49:08,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 07:49:08 BoogieIcfgContainer [2018-11-06 19:49:08,243 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 19:49:08,244 INFO L168 Benchmark]: Toolchain (without parser) took 230452.51 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -11.6 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-11-06 19:49:08,245 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 19:49:08,246 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3507.27 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 975.1 MB in the end (delta: 403.3 MB). Peak memory consumption was 403.3 MB. Max. memory is 7.1 GB. [2018-11-06 19:49:08,246 INFO L168 Benchmark]: Boogie Procedure Inliner took 1045.34 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 820.0 MB). Free memory was 975.1 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 98.8 MB. Max. memory is 7.1 GB. [2018-11-06 19:49:08,247 INFO L168 Benchmark]: Boogie Preprocessor took 742.06 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 113.0 MB). Peak memory consumption was 113.0 MB. Max. memory is 7.1 GB. [2018-11-06 19:49:08,250 INFO L168 Benchmark]: RCFGBuilder took 17011.50 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 290.5 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -429.1 MB). Peak memory consumption was 838.5 MB. Max. memory is 7.1 GB. [2018-11-06 19:49:08,253 INFO L168 Benchmark]: TraceAbstraction took 208141.11 ms. Allocated memory was 2.6 GB in the beginning and 3.5 GB in the end (delta: 859.8 MB). Free memory was 2.4 GB in the beginning and 1.4 GB in the end (delta: 1.0 GB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-11-06 19:49:08,261 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3507.27 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 975.1 MB in the end (delta: 403.3 MB). Peak memory consumption was 403.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1045.34 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 820.0 MB). Free memory was 975.1 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 98.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 742.06 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 113.0 MB). Peak memory consumption was 113.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17011.50 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 290.5 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -429.1 MB). Peak memory consumption was 838.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 208141.11 ms. Allocated memory was 2.6 GB in the beginning and 3.5 GB in the end (delta: 859.8 MB). Free memory was 2.4 GB in the beginning and 1.4 GB in the end (delta: 1.0 GB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 40]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 40). Cancelled while BasicCegarLoop was analyzing trace of length 1000 with TraceHistMax 6,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 208.0s OverallTime, 10 OverallIterations, 6 TraceHistogramMax, 183.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17230 SDtfs, 48945 SDslu, 4403 SDs, 0 SdLazy, 94946 SolverSat, 23573 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 149.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1569 GetRequests, 1531 SyntacticMatches, 7 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=212504occurred in iteration=9, 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: 12.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 27889 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 4934 NumberOfCodeBlocks, 4934 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 4922 ConstructedInterpolants, 0 QuantifiedInterpolants, 8439537 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1817 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 2395/2468 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown