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/Problem11_label10_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 19:59:43,636 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 19:59:43,638 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 19:59:43,653 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 19:59:43,653 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 19:59:43,654 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 19:59:43,657 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 19:59:43,660 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 19:59:43,661 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 19:59:43,662 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 19:59:43,663 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 19:59:43,664 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 19:59:43,665 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 19:59:43,665 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 19:59:43,667 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 19:59:43,667 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 19:59:43,668 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 19:59:43,670 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 19:59:43,672 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 19:59:43,673 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 19:59:43,674 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 19:59:43,676 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 19:59:43,678 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 19:59:43,678 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 19:59:43,678 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 19:59:43,680 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 19:59:43,681 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 19:59:43,682 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 19:59:43,682 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 19:59:43,683 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 19:59:43,684 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 19:59:43,684 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-23 19:59:43,687 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-23 19:59:43,703 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 19:59:43,703 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 19:59:43,704 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 19:59:43,704 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 19:59:43,705 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 19:59:43,705 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 19:59:43,705 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 19:59:43,706 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 19:59:43,706 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 19:59:43,706 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 19:59:43,706 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 19:59:43,706 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 19:59:43,706 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 19:59:43,707 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 19:59:43,707 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 19:59:43,707 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 19:59:43,707 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 19:59:43,708 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 19:59:43,708 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 19:59:43,708 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 19:59:43,708 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 19:59:43,708 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 19:59:43,709 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 19:59:43,709 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 19:59:43,709 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 19:59:43,709 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 19:59:43,709 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 19:59:43,709 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 19:59:43,761 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 19:59:43,775 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 19:59:43,780 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 19:59:43,782 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 19:59:43,782 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 19:59:43,783 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label10_true-unreach-call.c [2018-10-23 19:59:43,846 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/82fbe83ee/59f498dbc92b488595d1f96457d2ab75/FLAG34a09802e [2018-10-23 19:59:44,431 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 19:59:44,434 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label10_true-unreach-call.c [2018-10-23 19:59:44,450 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/82fbe83ee/59f498dbc92b488595d1f96457d2ab75/FLAG34a09802e [2018-10-23 19:59:44,469 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/82fbe83ee/59f498dbc92b488595d1f96457d2ab75 [2018-10-23 19:59:44,481 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 19:59:44,483 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 19:59:44,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 19:59:44,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 19:59:44,489 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 19:59:44,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:59:44" (1/1) ... [2018-10-23 19:59:44,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b8561a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:44, skipping insertion in model container [2018-10-23 19:59:44,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:59:44" (1/1) ... [2018-10-23 19:59:44,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 19:59:44,592 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 19:59:45,145 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 19:59:45,149 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 19:59:45,321 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 19:59:45,340 INFO L193 MainTranslator]: Completed translation [2018-10-23 19:59:45,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:45 WrapperNode [2018-10-23 19:59:45,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 19:59:45,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 19:59:45,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 19:59:45,342 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 19:59:45,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:45" (1/1) ... [2018-10-23 19:59:45,398 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:45" (1/1) ... [2018-10-23 19:59:45,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 19:59:45,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 19:59:45,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 19:59:45,651 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 19:59:45,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:45" (1/1) ... [2018-10-23 19:59:45,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:45" (1/1) ... [2018-10-23 19:59:45,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:45" (1/1) ... [2018-10-23 19:59:45,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:45" (1/1) ... [2018-10-23 19:59:45,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:45" (1/1) ... [2018-10-23 19:59:45,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:45" (1/1) ... [2018-10-23 19:59:45,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:45" (1/1) ... [2018-10-23 19:59:45,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 19:59:45,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 19:59:45,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 19:59:45,765 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 19:59:45,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 19:59:45,830 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 19:59:45,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 19:59:45,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 19:59:50,245 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 19:59:50,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:59:50 BoogieIcfgContainer [2018-10-23 19:59:50,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 19:59:50,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 19:59:50,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 19:59:50,252 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 19:59:50,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:59:44" (1/3) ... [2018-10-23 19:59:50,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5590edd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:59:50, skipping insertion in model container [2018-10-23 19:59:50,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:45" (2/3) ... [2018-10-23 19:59:50,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5590edd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:59:50, skipping insertion in model container [2018-10-23 19:59:50,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:59:50" (3/3) ... [2018-10-23 19:59:50,256 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label10_true-unreach-call.c [2018-10-23 19:59:50,267 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 19:59:50,277 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 19:59:50,295 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 19:59:50,331 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 19:59:50,332 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 19:59:50,332 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 19:59:50,332 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 19:59:50,333 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 19:59:50,333 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 19:59:50,333 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 19:59:50,333 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 19:59:50,333 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 19:59:50,358 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2018-10-23 19:59:50,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-23 19:59:50,365 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 19:59:50,366 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] [2018-10-23 19:59:50,368 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 19:59:50,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 19:59:50,374 INFO L82 PathProgramCache]: Analyzing trace with hash -314381782, now seen corresponding path program 1 times [2018-10-23 19:59:50,376 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 19:59:50,376 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 19:59:50,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 19:59:50,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 19:59:50,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 19:59:50,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 19:59:50,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 19:59:50,778 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 19:59:50,778 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 19:59:50,784 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 19:59:50,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 19:59:50,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 19:59:50,800 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 4 states. [2018-10-23 19:59:54,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 19:59:54,803 INFO L93 Difference]: Finished difference Result 977 states and 1747 transitions. [2018-10-23 19:59:54,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 19:59:54,806 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-10-23 19:59:54,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 19:59:54,832 INFO L225 Difference]: With dead ends: 977 [2018-10-23 19:59:54,832 INFO L226 Difference]: Without dead ends: 686 [2018-10-23 19:59:54,838 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 19:59:54,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2018-10-23 19:59:54,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 683. [2018-10-23 19:59:54,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 683 states. [2018-10-23 19:59:54,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 1060 transitions. [2018-10-23 19:59:54,931 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 1060 transitions. Word has length 23 [2018-10-23 19:59:54,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 19:59:54,932 INFO L481 AbstractCegarLoop]: Abstraction has 683 states and 1060 transitions. [2018-10-23 19:59:54,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 19:59:54,933 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 1060 transitions. [2018-10-23 19:59:54,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-10-23 19:59:54,937 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 19:59:54,937 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 19:59:54,937 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 19:59:54,938 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 19:59:54,938 INFO L82 PathProgramCache]: Analyzing trace with hash 487547954, now seen corresponding path program 1 times [2018-10-23 19:59:54,938 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 19:59:54,938 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 19:59:54,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 19:59:54,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 19:59:54,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 19:59:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 19:59:55,344 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 19:59:55,345 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 19:59:55,345 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 19:59:55,348 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 19:59:55,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 19:59:55,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 19:59:55,349 INFO L87 Difference]: Start difference. First operand 683 states and 1060 transitions. Second operand 4 states. [2018-10-23 20:00:01,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:00:01,087 INFO L93 Difference]: Finished difference Result 2492 states and 3982 transitions. [2018-10-23 20:00:01,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:00:01,088 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2018-10-23 20:00:01,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:00:01,098 INFO L225 Difference]: With dead ends: 2492 [2018-10-23 20:00:01,099 INFO L226 Difference]: Without dead ends: 1811 [2018-10-23 20:00:01,103 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:00:01,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2018-10-23 20:00:01,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1795. [2018-10-23 20:00:01,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1795 states. [2018-10-23 20:00:01,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 2640 transitions. [2018-10-23 20:00:01,189 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 2640 transitions. Word has length 92 [2018-10-23 20:00:01,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:00:01,190 INFO L481 AbstractCegarLoop]: Abstraction has 1795 states and 2640 transitions. [2018-10-23 20:00:01,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:00:01,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 2640 transitions. [2018-10-23 20:00:01,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-10-23 20:00:01,195 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:00:01,201 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 20:00:01,201 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:00:01,202 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:00:01,202 INFO L82 PathProgramCache]: Analyzing trace with hash -2043482925, now seen corresponding path program 1 times [2018-10-23 20:00:01,202 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:00:01,202 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:00:01,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:00:01,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:00:01,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:00:01,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:00:01,454 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:00:01,455 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:00:01,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 20:00:01,455 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:00:01,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:00:01,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:00:01,456 INFO L87 Difference]: Start difference. First operand 1795 states and 2640 transitions. Second operand 4 states. [2018-10-23 20:00:04,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:00:04,298 INFO L93 Difference]: Finished difference Result 6742 states and 10027 transitions. [2018-10-23 20:00:04,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:00:04,298 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 118 [2018-10-23 20:00:04,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:00:04,323 INFO L225 Difference]: With dead ends: 6742 [2018-10-23 20:00:04,324 INFO L226 Difference]: Without dead ends: 4949 [2018-10-23 20:00:04,328 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:00:04,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4949 states. [2018-10-23 20:00:04,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4949 to 4949. [2018-10-23 20:00:04,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4949 states. [2018-10-23 20:00:04,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4949 states to 4949 states and 6496 transitions. [2018-10-23 20:00:04,422 INFO L78 Accepts]: Start accepts. Automaton has 4949 states and 6496 transitions. Word has length 118 [2018-10-23 20:00:04,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:00:04,423 INFO L481 AbstractCegarLoop]: Abstraction has 4949 states and 6496 transitions. [2018-10-23 20:00:04,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:00:04,423 INFO L276 IsEmpty]: Start isEmpty. Operand 4949 states and 6496 transitions. [2018-10-23 20:00:04,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-10-23 20:00:04,426 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:00:04,426 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 20:00:04,426 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:00:04,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:00:04,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1055735476, now seen corresponding path program 1 times [2018-10-23 20:00:04,427 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:00:04,427 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:00:04,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:00:04,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:00:04,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:00:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:00:04,723 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:00:04,723 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:00:04,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:00:04,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:00:04,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:00:04,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:00:04,724 INFO L87 Difference]: Start difference. First operand 4949 states and 6496 transitions. Second operand 4 states. [2018-10-23 20:00:11,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:00:11,720 INFO L93 Difference]: Finished difference Result 13991 states and 18823 transitions. [2018-10-23 20:00:11,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:00:11,721 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 151 [2018-10-23 20:00:11,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:00:11,754 INFO L225 Difference]: With dead ends: 13991 [2018-10-23 20:00:11,755 INFO L226 Difference]: Without dead ends: 9229 [2018-10-23 20:00:11,763 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:00:11,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9229 states. [2018-10-23 20:00:11,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9229 to 6981. [2018-10-23 20:00:11,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6981 states. [2018-10-23 20:00:11,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6981 states to 6981 states and 8740 transitions. [2018-10-23 20:00:11,920 INFO L78 Accepts]: Start accepts. Automaton has 6981 states and 8740 transitions. Word has length 151 [2018-10-23 20:00:11,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:00:11,921 INFO L481 AbstractCegarLoop]: Abstraction has 6981 states and 8740 transitions. [2018-10-23 20:00:11,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:00:11,921 INFO L276 IsEmpty]: Start isEmpty. Operand 6981 states and 8740 transitions. [2018-10-23 20:00:11,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-10-23 20:00:11,928 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:00:11,928 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:00:11,928 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:00:11,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:00:11,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1905687981, now seen corresponding path program 1 times [2018-10-23 20:00:11,929 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:00:11,929 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:00:11,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:00:11,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:00:11,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:00:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:00:12,315 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-10-23 20:00:12,316 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:00:12,316 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:00:12,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:00:12,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:00:12,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:00:12,317 INFO L87 Difference]: Start difference. First operand 6981 states and 8740 transitions. Second operand 4 states. [2018-10-23 20:00:14,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:00:14,855 INFO L93 Difference]: Finished difference Result 16015 states and 20274 transitions. [2018-10-23 20:00:14,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:00:14,856 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 229 [2018-10-23 20:00:14,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:00:14,890 INFO L225 Difference]: With dead ends: 16015 [2018-10-23 20:00:14,890 INFO L226 Difference]: Without dead ends: 9221 [2018-10-23 20:00:14,898 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:00:14,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9221 states. [2018-10-23 20:00:15,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9221 to 9201. [2018-10-23 20:00:15,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9201 states. [2018-10-23 20:00:15,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9201 states to 9201 states and 11261 transitions. [2018-10-23 20:00:15,040 INFO L78 Accepts]: Start accepts. Automaton has 9201 states and 11261 transitions. Word has length 229 [2018-10-23 20:00:15,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:00:15,040 INFO L481 AbstractCegarLoop]: Abstraction has 9201 states and 11261 transitions. [2018-10-23 20:00:15,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:00:15,041 INFO L276 IsEmpty]: Start isEmpty. Operand 9201 states and 11261 transitions. [2018-10-23 20:00:15,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2018-10-23 20:00:15,047 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:00:15,048 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:00:15,048 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:00:15,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:00:15,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1116672364, now seen corresponding path program 1 times [2018-10-23 20:00:15,049 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:00:15,050 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:00:15,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:00:15,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:00:15,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:00:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:00:15,453 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 90 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:00:15,454 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:00:15,454 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 20:00:15,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:00:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:00:15,590 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:00:16,525 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 41 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:00:16,555 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 20:00:16,556 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 7 [2018-10-23 20:00:16,557 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-23 20:00:16,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-23 20:00:16,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-10-23 20:00:16,558 INFO L87 Difference]: Start difference. First operand 9201 states and 11261 transitions. Second operand 8 states. [2018-10-23 20:00:16,795 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 12 [2018-10-23 20:00:27,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:00:27,964 INFO L93 Difference]: Finished difference Result 28657 states and 35384 transitions. [2018-10-23 20:00:27,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-23 20:00:27,964 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 237 [2018-10-23 20:00:27,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:00:28,010 INFO L225 Difference]: With dead ends: 28657 [2018-10-23 20:00:28,011 INFO L226 Difference]: Without dead ends: 18335 [2018-10-23 20:00:28,024 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-10-23 20:00:28,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18335 states. [2018-10-23 20:00:28,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18335 to 15899. [2018-10-23 20:00:28,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15899 states. [2018-10-23 20:00:28,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15899 states to 15899 states and 18496 transitions. [2018-10-23 20:00:28,300 INFO L78 Accepts]: Start accepts. Automaton has 15899 states and 18496 transitions. Word has length 237 [2018-10-23 20:00:28,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:00:28,301 INFO L481 AbstractCegarLoop]: Abstraction has 15899 states and 18496 transitions. [2018-10-23 20:00:28,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-23 20:00:28,301 INFO L276 IsEmpty]: Start isEmpty. Operand 15899 states and 18496 transitions. [2018-10-23 20:00:28,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2018-10-23 20:00:28,307 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:00:28,308 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:00:28,308 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:00:28,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:00:28,308 INFO L82 PathProgramCache]: Analyzing trace with hash -470884986, now seen corresponding path program 1 times [2018-10-23 20:00:28,309 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:00:28,309 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:00:28,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:00:28,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:00:28,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:00:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:00:28,782 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-23 20:00:29,282 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 20 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:00:29,282 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:00:29,282 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 20:00:29,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:00:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:00:29,376 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:00:29,920 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 75 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:00:29,940 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 20:00:29,941 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 10 [2018-10-23 20:00:29,941 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-23 20:00:29,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-23 20:00:29,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-23 20:00:29,942 INFO L87 Difference]: Start difference. First operand 15899 states and 18496 transitions. Second operand 11 states. [2018-10-23 20:00:37,291 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-23 20:00:43,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:00:43,643 INFO L93 Difference]: Finished difference Result 45734 states and 53551 transitions. [2018-10-23 20:00:43,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-23 20:00:43,644 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 239 [2018-10-23 20:00:43,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:00:43,703 INFO L225 Difference]: With dead ends: 45734 [2018-10-23 20:00:43,703 INFO L226 Difference]: Without dead ends: 30207 [2018-10-23 20:00:43,721 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 235 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=220, Invalid=430, Unknown=0, NotChecked=0, Total=650 [2018-10-23 20:00:43,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30207 states. [2018-10-23 20:00:44,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30207 to 23282. [2018-10-23 20:00:44,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23282 states. [2018-10-23 20:00:44,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23282 states to 23282 states and 26180 transitions. [2018-10-23 20:00:44,099 INFO L78 Accepts]: Start accepts. Automaton has 23282 states and 26180 transitions. Word has length 239 [2018-10-23 20:00:44,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:00:44,099 INFO L481 AbstractCegarLoop]: Abstraction has 23282 states and 26180 transitions. [2018-10-23 20:00:44,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-23 20:00:44,099 INFO L276 IsEmpty]: Start isEmpty. Operand 23282 states and 26180 transitions. [2018-10-23 20:00:44,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2018-10-23 20:00:44,106 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:00:44,106 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:00:44,106 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:00:44,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:00:44,107 INFO L82 PathProgramCache]: Analyzing trace with hash 847309857, now seen corresponding path program 1 times [2018-10-23 20:00:44,107 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:00:44,107 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:00:44,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:00:44,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:00:44,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:00:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:00:44,440 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:00:44,441 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:00:44,441 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 20:00:44,441 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:00:44,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:00:44,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:00:44,442 INFO L87 Difference]: Start difference. First operand 23282 states and 26180 transitions. Second operand 4 states. [2018-10-23 20:00:46,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:00:46,203 INFO L93 Difference]: Finished difference Result 46750 states and 52559 transitions. [2018-10-23 20:00:46,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:00:46,204 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 258 [2018-10-23 20:00:46,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:00:46,229 INFO L225 Difference]: With dead ends: 46750 [2018-10-23 20:00:46,229 INFO L226 Difference]: Without dead ends: 23840 [2018-10-23 20:00:46,251 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:00:46,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23840 states. [2018-10-23 20:00:46,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23840 to 21793. [2018-10-23 20:00:46,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21793 states. [2018-10-23 20:00:46,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21793 states to 21793 states and 24382 transitions. [2018-10-23 20:00:46,546 INFO L78 Accepts]: Start accepts. Automaton has 21793 states and 24382 transitions. Word has length 258 [2018-10-23 20:00:46,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:00:46,546 INFO L481 AbstractCegarLoop]: Abstraction has 21793 states and 24382 transitions. [2018-10-23 20:00:46,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:00:46,547 INFO L276 IsEmpty]: Start isEmpty. Operand 21793 states and 24382 transitions. [2018-10-23 20:00:46,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2018-10-23 20:00:46,557 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:00:46,558 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:00:46,558 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:00:46,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:00:46,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1177107993, now seen corresponding path program 1 times [2018-10-23 20:00:46,559 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:00:46,559 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:00:46,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:00:46,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:00:46,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:00:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:00:47,026 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 233 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-10-23 20:00:47,026 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:00:47,027 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:00:47,027 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:00:47,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:00:47,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:00:47,028 INFO L87 Difference]: Start difference. First operand 21793 states and 24382 transitions. Second operand 4 states. [2018-10-23 20:00:50,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:00:50,112 INFO L93 Difference]: Finished difference Result 43233 states and 48389 transitions. [2018-10-23 20:00:50,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:00:50,113 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 308 [2018-10-23 20:00:50,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:00:50,134 INFO L225 Difference]: With dead ends: 43233 [2018-10-23 20:00:50,135 INFO L226 Difference]: Without dead ends: 21812 [2018-10-23 20:00:50,147 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:00:50,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21812 states. [2018-10-23 20:00:50,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21812 to 19750. [2018-10-23 20:00:50,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19750 states. [2018-10-23 20:00:50,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19750 states to 19750 states and 21771 transitions. [2018-10-23 20:00:50,392 INFO L78 Accepts]: Start accepts. Automaton has 19750 states and 21771 transitions. Word has length 308 [2018-10-23 20:00:50,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:00:50,393 INFO L481 AbstractCegarLoop]: Abstraction has 19750 states and 21771 transitions. [2018-10-23 20:00:50,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:00:50,393 INFO L276 IsEmpty]: Start isEmpty. Operand 19750 states and 21771 transitions. [2018-10-23 20:00:50,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2018-10-23 20:00:50,407 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:00:50,407 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-23 20:00:50,408 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:00:50,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:00:50,408 INFO L82 PathProgramCache]: Analyzing trace with hash -882791487, now seen corresponding path program 1 times [2018-10-23 20:00:50,408 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:00:50,408 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:00:50,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:00:50,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:00:50,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:00:50,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:00:51,053 WARN L179 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-23 20:00:51,130 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 62 proven. 181 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2018-10-23 20:00:51,131 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:00:51,131 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 [2018-10-23 20:00:51,140 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:00:51,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:00:51,237 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:00:52,629 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 97 proven. 243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:00:52,649 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 20:00:52,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2018-10-23 20:00:52,650 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-23 20:00:52,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-23 20:00:52,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-10-23 20:00:52,651 INFO L87 Difference]: Start difference. First operand 19750 states and 21771 transitions. Second operand 9 states. [2018-10-23 20:01:38,765 WARN L179 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2018-10-23 20:01:42,098 WARN L179 SmtUtils]: Spent 976.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2018-10-23 20:01:47,787 WARN L179 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2018-10-23 20:01:49,332 WARN L179 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2018-10-23 20:01:58,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:01:58,644 INFO L93 Difference]: Finished difference Result 51954 states and 57628 transitions. [2018-10-23 20:01:58,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-10-23 20:01:58,644 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 335 [2018-10-23 20:01:58,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:01:58,673 INFO L225 Difference]: With dead ends: 51954 [2018-10-23 20:01:58,674 INFO L226 Difference]: Without dead ends: 28471 [2018-10-23 20:01:58,689 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=146, Invalid=608, Unknown=2, NotChecked=0, Total=756 [2018-10-23 20:01:58,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28471 states. [2018-10-23 20:01:58,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28471 to 22710. [2018-10-23 20:01:58,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22710 states. [2018-10-23 20:01:58,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22710 states to 22710 states and 24613 transitions. [2018-10-23 20:01:58,998 INFO L78 Accepts]: Start accepts. Automaton has 22710 states and 24613 transitions. Word has length 335 [2018-10-23 20:01:58,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:01:58,998 INFO L481 AbstractCegarLoop]: Abstraction has 22710 states and 24613 transitions. [2018-10-23 20:01:58,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-23 20:01:58,998 INFO L276 IsEmpty]: Start isEmpty. Operand 22710 states and 24613 transitions. [2018-10-23 20:01:59,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2018-10-23 20:01:59,020 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:01:59,020 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 20:01:59,021 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:01:59,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:01:59,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1115860488, now seen corresponding path program 1 times [2018-10-23 20:01:59,021 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:01:59,021 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:01:59,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:01:59,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:01:59,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:01:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:02:00,255 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 152 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:02:00,256 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:02:00,256 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 20:02:00,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:02:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:02:00,370 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:02:01,133 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 161 proven. 207 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:02:01,154 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 20:02:01,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2018-10-23 20:02:01,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-23 20:02:01,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-23 20:02:01,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-10-23 20:02:01,155 INFO L87 Difference]: Start difference. First operand 22710 states and 24613 transitions. Second operand 12 states. [2018-10-23 20:02:09,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:02:09,773 INFO L93 Difference]: Finished difference Result 50942 states and 55073 transitions. [2018-10-23 20:02:09,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-23 20:02:09,776 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 377 [2018-10-23 20:02:09,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:02:09,810 INFO L225 Difference]: With dead ends: 50942 [2018-10-23 20:02:09,810 INFO L226 Difference]: Without dead ends: 27302 [2018-10-23 20:02:09,824 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 373 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=192, Invalid=408, Unknown=0, NotChecked=0, Total=600 [2018-10-23 20:02:09,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27302 states. [2018-10-23 20:02:10,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27302 to 21408. [2018-10-23 20:02:10,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21408 states. [2018-10-23 20:02:10,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21408 states to 21408 states and 23159 transitions. [2018-10-23 20:02:10,173 INFO L78 Accepts]: Start accepts. Automaton has 21408 states and 23159 transitions. Word has length 377 [2018-10-23 20:02:10,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:02:10,174 INFO L481 AbstractCegarLoop]: Abstraction has 21408 states and 23159 transitions. [2018-10-23 20:02:10,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-23 20:02:10,174 INFO L276 IsEmpty]: Start isEmpty. Operand 21408 states and 23159 transitions. [2018-10-23 20:02:10,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2018-10-23 20:02:10,192 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:02:10,193 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 20:02:10,193 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:02:10,193 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:02:10,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1468023810, now seen corresponding path program 1 times [2018-10-23 20:02:10,194 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:02:10,194 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:02:10,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:02:10,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:02:10,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:02:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:02:11,295 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 112 proven. 274 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:02:11,296 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:02:11,296 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-10-23 20:02:11,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 20:02:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:02:11,427 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:02:14,628 WARN L179 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 43 DAG size of output: 19 [2018-10-23 20:02:16,104 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 153 proven. 233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:02:16,146 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 20:02:16,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2018-10-23 20:02:16,148 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-23 20:02:16,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-23 20:02:16,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=62, Unknown=1, NotChecked=0, Total=90 [2018-10-23 20:02:16,148 INFO L87 Difference]: Start difference. First operand 21408 states and 23159 transitions. Second operand 10 states. [2018-10-23 20:02:16,474 WARN L179 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 9 [2018-10-23 20:02:18,363 WARN L179 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 20 Received shutdown request... [2018-10-23 20:03:50,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-23 20:03:50,624 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 20:03:50,630 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 20:03:50,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:03:50 BoogieIcfgContainer [2018-10-23 20:03:50,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 20:03:50,631 INFO L168 Benchmark]: Toolchain (without parser) took 246149.60 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 684.5 MB. Max. memory is 7.1 GB. [2018-10-23 20:03:50,632 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 20:03:50,633 INFO L168 Benchmark]: CACSL2BoogieTranslator took 857.03 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-10-23 20:03:50,633 INFO L168 Benchmark]: Boogie Procedure Inliner took 309.24 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 723.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -813.9 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2018-10-23 20:03:50,634 INFO L168 Benchmark]: Boogie Preprocessor took 113.77 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 20:03:50,635 INFO L168 Benchmark]: RCFGBuilder took 4481.41 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 196.7 MB). Peak memory consumption was 196.7 MB. Max. memory is 7.1 GB. [2018-10-23 20:03:50,636 INFO L168 Benchmark]: TraceAbstraction took 240382.35 ms. Allocated memory was 2.2 GB in the beginning and 3.4 GB in the end (delta: 1.2 GB). Free memory was 2.0 GB in the beginning and 2.6 GB in the end (delta: -658.5 MB). Peak memory consumption was 515.4 MB. Max. memory is 7.1 GB. [2018-10-23 20:03:50,640 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 857.03 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 309.24 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 723.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -813.9 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.77 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4481.41 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 196.7 MB). Peak memory consumption was 196.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 240382.35 ms. Allocated memory was 2.2 GB in the beginning and 3.4 GB in the end (delta: 1.2 GB). Free memory was 2.0 GB in the beginning and 2.6 GB in the end (delta: -658.5 MB). Peak memory consumption was 515.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 72). Cancelled while BasicCegarLoop was constructing difference of abstraction (21408states) and FLOYD_HOARE automaton (currently 20 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (24360 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 284 locations, 1 error locations. TIMEOUT Result, 240.3s OverallTime, 12 OverallIterations, 4 TraceHistogramMax, 221.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2368 SDtfs, 15267 SDslu, 2674 SDs, 0 SdLazy, 45891 SolverSat, 6900 SolverUnsat, 118 SolverUnknown, 0 SolverNotchecked, 196.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1728 GetRequests, 1602 SyntacticMatches, 7 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 19.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23282occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 27412 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 13.0s InterpolantComputationTime, 4397 NumberOfCodeBlocks, 4397 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 4380 ConstructedInterpolants, 646 QuantifiedInterpolants, 13489014 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2173 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 17 InterpolantComputations, 7 PerfectInterpolantSequences, 1682/3328 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown