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/Problem12_label13_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:01:00,262 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:01:00,264 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:01:00,283 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:01:00,284 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:01:00,286 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:01:00,288 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:01:00,290 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:01:00,293 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:01:00,299 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:01:00,300 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:01:00,302 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:01:00,303 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:01:00,304 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:01:00,305 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:01:00,305 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:01:00,306 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:01:00,308 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:01:00,309 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:01:00,311 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:01:00,312 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:01:00,313 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:01:00,315 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 14:01:00,315 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 14:01:00,315 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 14:01:00,316 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 14:01:00,317 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 14:01:00,318 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 14:01:00,319 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 14:01:00,320 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 14:01:00,320 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 14:01:00,320 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 14:01:00,322 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 14:01:00,338 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:01:00,338 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:01:00,339 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:01:00,339 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:01:00,340 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:01:00,340 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:01:00,340 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:01:00,341 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:01:00,342 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:01:00,342 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:01:00,342 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:01:00,342 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:01:00,342 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:01:00,342 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:01:00,342 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:01:00,343 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:01:00,343 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:01:00,343 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:01:00,343 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:01:00,344 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:01:00,345 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:01:00,345 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:01:00,345 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:01:00,345 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:01:00,346 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:01:00,346 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:01:00,346 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:01:00,346 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:01:00,394 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:01:00,410 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:01:00,415 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:01:00,417 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:01:00,417 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:01:00,418 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label13_false-unreach-call.c [2018-10-24 14:01:00,482 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/44f302150/6dc21f5608e84dc8a25863ba9ab5f135/FLAG8dab4b545 [2018-10-24 14:01:01,296 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:01:01,297 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label13_false-unreach-call.c [2018-10-24 14:01:01,329 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/44f302150/6dc21f5608e84dc8a25863ba9ab5f135/FLAG8dab4b545 [2018-10-24 14:01:01,352 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/44f302150/6dc21f5608e84dc8a25863ba9ab5f135 [2018-10-24 14:01:01,365 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:01:01,367 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:01:01,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:01:01,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:01:01,373 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:01:01,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:01:01" (1/1) ... [2018-10-24 14:01:01,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8de4687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:01, skipping insertion in model container [2018-10-24 14:01:01,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:01:01" (1/1) ... [2018-10-24 14:01:01,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:01:01,560 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:01:02,895 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:01:02,901 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:01:03,463 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:01:03,499 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:01:03,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:03 WrapperNode [2018-10-24 14:01:03,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:01:03,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:01:03,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:01:03,501 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:01:03,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:03" (1/1) ... [2018-10-24 14:01:03,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:03" (1/1) ... [2018-10-24 14:01:04,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:01:04,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:01:04,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:01:04,147 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:01:04,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:03" (1/1) ... [2018-10-24 14:01:04,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:03" (1/1) ... [2018-10-24 14:01:04,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:03" (1/1) ... [2018-10-24 14:01:04,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:03" (1/1) ... [2018-10-24 14:01:04,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:03" (1/1) ... [2018-10-24 14:01:04,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:03" (1/1) ... [2018-10-24 14:01:04,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:03" (1/1) ... [2018-10-24 14:01:04,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:01:04,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:01:04,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:01:04,460 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:01:04,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:01:04,534 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:01:04,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:01:04,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:01:13,588 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:01:13,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:01:13 BoogieIcfgContainer [2018-10-24 14:01:13,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:01:13,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:01:13,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:01:13,593 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:01:13,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:01:01" (1/3) ... [2018-10-24 14:01:13,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9fcea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:01:13, skipping insertion in model container [2018-10-24 14:01:13,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:01:03" (2/3) ... [2018-10-24 14:01:13,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9fcea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:01:13, skipping insertion in model container [2018-10-24 14:01:13,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:01:13" (3/3) ... [2018-10-24 14:01:13,597 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label13_false-unreach-call.c [2018-10-24 14:01:13,607 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:01:13,617 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:01:13,634 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:01:13,679 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:01:13,680 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:01:13,680 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:01:13,680 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:01:13,680 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:01:13,680 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:01:13,681 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:01:13,681 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:01:13,681 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:01:13,715 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states. [2018-10-24 14:01:13,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-24 14:01:13,723 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:01:13,724 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:01:13,726 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:01:13,732 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:01:13,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1827210562, now seen corresponding path program 1 times [2018-10-24 14:01:13,735 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:01:13,736 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:01:13,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:01:13,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:01:13,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:01:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:01:14,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:01:14,109 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:01:14,109 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:01:14,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:01:14,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:01:14,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:01:14,134 INFO L87 Difference]: Start difference. First operand 819 states. Second operand 4 states. [2018-10-24 14:01:28,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:01:28,776 INFO L93 Difference]: Finished difference Result 3146 states and 6134 transitions. [2018-10-24 14:01:28,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:01:28,778 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-10-24 14:01:28,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:01:28,824 INFO L225 Difference]: With dead ends: 3146 [2018-10-24 14:01:28,825 INFO L226 Difference]: Without dead ends: 2320 [2018-10-24 14:01:28,834 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:01:28,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2018-10-24 14:01:28,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 2320. [2018-10-24 14:01:28,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2320 states. [2018-10-24 14:01:28,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 4229 transitions. [2018-10-24 14:01:28,996 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 4229 transitions. Word has length 29 [2018-10-24 14:01:28,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:01:28,996 INFO L481 AbstractCegarLoop]: Abstraction has 2320 states and 4229 transitions. [2018-10-24 14:01:28,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:01:28,998 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 4229 transitions. [2018-10-24 14:01:29,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-24 14:01:29,005 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:01:29,007 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:01:29,007 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:01:29,008 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:01:29,008 INFO L82 PathProgramCache]: Analyzing trace with hash -66195396, now seen corresponding path program 1 times [2018-10-24 14:01:29,008 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:01:29,008 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:01:29,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:01:29,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:01:29,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:01:29,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:01:29,460 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:01:29,460 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:01:29,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:01:29,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:01:29,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:01:29,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:01:29,464 INFO L87 Difference]: Start difference. First operand 2320 states and 4229 transitions. Second operand 4 states. [2018-10-24 14:01:40,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:01:40,261 INFO L93 Difference]: Finished difference Result 9150 states and 16788 transitions. [2018-10-24 14:01:40,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:01:40,262 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 105 [2018-10-24 14:01:40,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:01:40,299 INFO L225 Difference]: With dead ends: 9150 [2018-10-24 14:01:40,299 INFO L226 Difference]: Without dead ends: 6832 [2018-10-24 14:01:40,304 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:01:40,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6832 states. [2018-10-24 14:01:40,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6832 to 6832. [2018-10-24 14:01:40,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6832 states. [2018-10-24 14:01:40,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6832 states to 6832 states and 10629 transitions. [2018-10-24 14:01:40,433 INFO L78 Accepts]: Start accepts. Automaton has 6832 states and 10629 transitions. Word has length 105 [2018-10-24 14:01:40,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:01:40,434 INFO L481 AbstractCegarLoop]: Abstraction has 6832 states and 10629 transitions. [2018-10-24 14:01:40,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:01:40,434 INFO L276 IsEmpty]: Start isEmpty. Operand 6832 states and 10629 transitions. [2018-10-24 14:01:40,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-24 14:01:40,439 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:01:40,440 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:01:40,440 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:01:40,440 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:01:40,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1320091957, now seen corresponding path program 1 times [2018-10-24 14:01:40,440 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:01:40,441 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:01:40,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:01:40,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:01:40,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:01:40,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:01:40,752 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:01:40,752 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:01:40,753 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:01:40,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:01:40,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:01:40,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:01:40,755 INFO L87 Difference]: Start difference. First operand 6832 states and 10629 transitions. Second operand 4 states. [2018-10-24 14:01:51,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:01:51,788 INFO L93 Difference]: Finished difference Result 27260 states and 42449 transitions. [2018-10-24 14:01:51,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:01:51,796 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2018-10-24 14:01:51,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:01:51,880 INFO L225 Difference]: With dead ends: 27260 [2018-10-24 14:01:51,881 INFO L226 Difference]: Without dead ends: 20430 [2018-10-24 14:01:51,893 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:01:51,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20430 states. [2018-10-24 14:01:52,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20430 to 13600. [2018-10-24 14:01:52,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13600 states. [2018-10-24 14:01:52,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13600 states to 13600 states and 19341 transitions. [2018-10-24 14:01:52,206 INFO L78 Accepts]: Start accepts. Automaton has 13600 states and 19341 transitions. Word has length 111 [2018-10-24 14:01:52,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:01:52,207 INFO L481 AbstractCegarLoop]: Abstraction has 13600 states and 19341 transitions. [2018-10-24 14:01:52,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:01:52,207 INFO L276 IsEmpty]: Start isEmpty. Operand 13600 states and 19341 transitions. [2018-10-24 14:01:52,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-10-24 14:01:52,214 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:01:52,215 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:01:52,215 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:01:52,215 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:01:52,216 INFO L82 PathProgramCache]: Analyzing trace with hash -981015944, now seen corresponding path program 1 times [2018-10-24 14:01:52,216 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:01:52,216 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:01:52,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:01:52,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:01:52,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:01:52,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:01:52,529 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:01:52,529 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:01:52,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:01:52,530 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:01:52,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:01:52,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:01:52,531 INFO L87 Difference]: Start difference. First operand 13600 states and 19341 transitions. Second operand 4 states. [2018-10-24 14:02:03,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:02:03,024 INFO L93 Difference]: Finished difference Result 52783 states and 74748 transitions. [2018-10-24 14:02:03,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:02:03,025 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 129 [2018-10-24 14:02:03,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:02:03,110 INFO L225 Difference]: With dead ends: 52783 [2018-10-24 14:02:03,110 INFO L226 Difference]: Without dead ends: 39185 [2018-10-24 14:02:03,132 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:02:03,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39185 states. [2018-10-24 14:02:03,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39185 to 26384. [2018-10-24 14:02:03,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26384 states. [2018-10-24 14:02:03,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26384 states to 26384 states and 33902 transitions. [2018-10-24 14:02:03,566 INFO L78 Accepts]: Start accepts. Automaton has 26384 states and 33902 transitions. Word has length 129 [2018-10-24 14:02:03,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:02:03,567 INFO L481 AbstractCegarLoop]: Abstraction has 26384 states and 33902 transitions. [2018-10-24 14:02:03,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:02:03,567 INFO L276 IsEmpty]: Start isEmpty. Operand 26384 states and 33902 transitions. [2018-10-24 14:02:03,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2018-10-24 14:02:03,576 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:02:03,576 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:02:03,577 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:02:03,577 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:02:03,577 INFO L82 PathProgramCache]: Analyzing trace with hash -24275938, now seen corresponding path program 1 times [2018-10-24 14:02:03,577 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:02:03,577 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:02:03,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:02:03,579 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:02:03,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:02:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:02:04,062 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:02:04,063 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:02:04,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:02:04,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:02:04,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:02:04,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:02:04,065 INFO L87 Difference]: Start difference. First operand 26384 states and 33902 transitions. Second operand 4 states. [2018-10-24 14:02:16,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:02:16,890 INFO L93 Difference]: Finished difference Result 53518 states and 68744 transitions. [2018-10-24 14:02:16,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:02:16,898 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 258 [2018-10-24 14:02:16,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:02:16,955 INFO L225 Difference]: With dead ends: 53518 [2018-10-24 14:02:16,955 INFO L226 Difference]: Without dead ends: 27136 [2018-10-24 14:02:16,984 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:02:17,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27136 states. [2018-10-24 14:02:17,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27136 to 27136. [2018-10-24 14:02:17,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27136 states. [2018-10-24 14:02:17,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27136 states to 27136 states and 33830 transitions. [2018-10-24 14:02:17,298 INFO L78 Accepts]: Start accepts. Automaton has 27136 states and 33830 transitions. Word has length 258 [2018-10-24 14:02:17,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:02:17,299 INFO L481 AbstractCegarLoop]: Abstraction has 27136 states and 33830 transitions. [2018-10-24 14:02:17,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:02:17,299 INFO L276 IsEmpty]: Start isEmpty. Operand 27136 states and 33830 transitions. [2018-10-24 14:02:17,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-10-24 14:02:17,306 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:02:17,306 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:02:17,307 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:02:17,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:02:17,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1841358292, now seen corresponding path program 1 times [2018-10-24 14:02:17,307 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:02:17,308 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:02:17,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:02:17,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:02:17,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:02:17,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:02:17,758 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-10-24 14:02:17,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:02:17,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:02:17,759 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:02:17,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:02:17,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:02:17,760 INFO L87 Difference]: Start difference. First operand 27136 states and 33830 transitions. Second operand 4 states. [2018-10-24 14:02:27,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:02:27,274 INFO L93 Difference]: Finished difference Result 100142 states and 125232 transitions. [2018-10-24 14:02:27,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:02:27,275 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 262 [2018-10-24 14:02:27,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:02:27,400 INFO L225 Difference]: With dead ends: 100142 [2018-10-24 14:02:27,400 INFO L226 Difference]: Without dead ends: 73008 [2018-10-24 14:02:27,442 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:02:27,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73008 states. [2018-10-24 14:02:28,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73008 to 73008. [2018-10-24 14:02:28,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73008 states. [2018-10-24 14:02:28,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73008 states to 73008 states and 86280 transitions. [2018-10-24 14:02:28,214 INFO L78 Accepts]: Start accepts. Automaton has 73008 states and 86280 transitions. Word has length 262 [2018-10-24 14:02:28,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:02:28,214 INFO L481 AbstractCegarLoop]: Abstraction has 73008 states and 86280 transitions. [2018-10-24 14:02:28,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:02:28,215 INFO L276 IsEmpty]: Start isEmpty. Operand 73008 states and 86280 transitions. [2018-10-24 14:02:28,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2018-10-24 14:02:28,223 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:02:28,223 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:02:28,223 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:02:28,224 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:02:28,224 INFO L82 PathProgramCache]: Analyzing trace with hash 407961111, now seen corresponding path program 1 times [2018-10-24 14:02:28,224 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:02:28,224 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:02:28,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:02:28,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:02:28,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:02:28,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:02:28,523 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-10-24 14:02:28,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:02:28,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:02:28,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:02:28,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:02:28,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:02:28,525 INFO L87 Difference]: Start difference. First operand 73008 states and 86280 transitions. Second operand 4 states. [2018-10-24 14:02:38,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:02:38,192 INFO L93 Difference]: Finished difference Result 161806 states and 190869 transitions. [2018-10-24 14:02:38,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:02:38,195 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 271 [2018-10-24 14:02:38,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:02:38,298 INFO L225 Difference]: With dead ends: 161806 [2018-10-24 14:02:38,298 INFO L226 Difference]: Without dead ends: 89552 [2018-10-24 14:02:38,360 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:02:38,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89552 states. [2018-10-24 14:02:39,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89552 to 88048. [2018-10-24 14:02:39,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88048 states. [2018-10-24 14:02:39,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88048 states to 88048 states and 99116 transitions. [2018-10-24 14:02:39,230 INFO L78 Accepts]: Start accepts. Automaton has 88048 states and 99116 transitions. Word has length 271 [2018-10-24 14:02:39,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:02:39,230 INFO L481 AbstractCegarLoop]: Abstraction has 88048 states and 99116 transitions. [2018-10-24 14:02:39,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:02:39,231 INFO L276 IsEmpty]: Start isEmpty. Operand 88048 states and 99116 transitions. [2018-10-24 14:02:39,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2018-10-24 14:02:39,250 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:02:39,250 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:02:39,250 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:02:39,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:02:39,251 INFO L82 PathProgramCache]: Analyzing trace with hash 220808087, now seen corresponding path program 1 times [2018-10-24 14:02:39,251 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:02:39,251 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:02:39,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:02:39,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:02:39,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:02:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:02:39,845 WARN L179 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 23 [2018-10-24 14:02:39,952 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 23 [2018-10-24 14:02:40,611 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2018-10-24 14:02:40,612 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:02:40,612 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 14:02:40,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:02:40,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:02:40,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:02:40,613 INFO L87 Difference]: Start difference. First operand 88048 states and 99116 transitions. Second operand 6 states. [2018-10-24 14:02:55,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:02:55,526 INFO L93 Difference]: Finished difference Result 204671 states and 232595 transitions. [2018-10-24 14:02:55,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:02:55,528 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 360 [2018-10-24 14:02:55,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:02:55,686 INFO L225 Difference]: With dead ends: 204671 [2018-10-24 14:02:55,686 INFO L226 Difference]: Without dead ends: 115872 [2018-10-24 14:02:55,757 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:02:55,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115872 states. [2018-10-24 14:02:57,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115872 to 112111. [2018-10-24 14:02:57,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112111 states. [2018-10-24 14:02:57,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112111 states to 112111 states and 124851 transitions. [2018-10-24 14:02:57,511 INFO L78 Accepts]: Start accepts. Automaton has 112111 states and 124851 transitions. Word has length 360 [2018-10-24 14:02:57,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:02:57,512 INFO L481 AbstractCegarLoop]: Abstraction has 112111 states and 124851 transitions. [2018-10-24 14:02:57,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:02:57,512 INFO L276 IsEmpty]: Start isEmpty. Operand 112111 states and 124851 transitions. [2018-10-24 14:02:57,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2018-10-24 14:02:57,533 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:02:57,533 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:02:57,533 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:02:57,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:02:57,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1227984769, now seen corresponding path program 1 times [2018-10-24 14:02:57,534 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:02:57,534 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:02:57,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:02:57,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:02:57,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:02:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:02:58,022 WARN L179 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 9 [2018-10-24 14:02:58,341 WARN L179 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 9 [2018-10-24 14:02:58,679 WARN L179 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 19 [2018-10-24 14:02:58,803 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 225 proven. 5 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-10-24 14:02:58,803 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:02:58,803 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:02:58,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:02:58,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:02:58,967 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:02:59,246 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2018-10-24 14:02:59,286 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:02:59,287 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-10-24 14:02:59,288 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 14:02:59,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 14:02:59,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:02:59,289 INFO L87 Difference]: Start difference. First operand 112111 states and 124851 transitions. Second operand 7 states. [2018-10-24 14:03:27,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:03:27,867 INFO L93 Difference]: Finished difference Result 265596 states and 294766 transitions. [2018-10-24 14:03:27,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 14:03:27,869 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 391 [2018-10-24 14:03:27,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:03:28,027 INFO L225 Difference]: With dead ends: 265596 [2018-10-24 14:03:28,027 INFO L226 Difference]: Without dead ends: 151980 [2018-10-24 14:03:28,101 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 392 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 14:03:28,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151980 states. [2018-10-24 14:03:30,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151980 to 128654. [2018-10-24 14:03:30,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128654 states. [2018-10-24 14:03:31,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128654 states to 128654 states and 140080 transitions. [2018-10-24 14:03:31,157 INFO L78 Accepts]: Start accepts. Automaton has 128654 states and 140080 transitions. Word has length 391 [2018-10-24 14:03:31,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:03:31,160 INFO L481 AbstractCegarLoop]: Abstraction has 128654 states and 140080 transitions. [2018-10-24 14:03:31,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 14:03:31,160 INFO L276 IsEmpty]: Start isEmpty. Operand 128654 states and 140080 transitions. [2018-10-24 14:03:31,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 742 [2018-10-24 14:03:31,250 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:03:31,251 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:03:31,251 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:03:31,252 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:03:31,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1965308007, now seen corresponding path program 1 times [2018-10-24 14:03:31,252 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:03:31,253 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:03:31,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:03:31,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:03:31,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:03:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:03:32,142 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2018-10-24 14:03:32,142 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:03:32,142 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:03:32,143 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:03:32,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:03:32,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:03:32,144 INFO L87 Difference]: Start difference. First operand 128654 states and 140080 transitions. Second operand 3 states. [2018-10-24 14:03:37,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:03:37,843 INFO L93 Difference]: Finished difference Result 257305 states and 280101 transitions. [2018-10-24 14:03:37,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:03:37,844 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 741 [2018-10-24 14:03:37,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:03:37,996 INFO L225 Difference]: With dead ends: 257305 [2018-10-24 14:03:37,996 INFO L226 Difference]: Without dead ends: 129405 [2018-10-24 14:03:38,076 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:03:38,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129405 states. [2018-10-24 14:03:40,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129405 to 127901. [2018-10-24 14:03:40,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127901 states. [2018-10-24 14:03:40,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127901 states to 127901 states and 136334 transitions. [2018-10-24 14:03:40,125 INFO L78 Accepts]: Start accepts. Automaton has 127901 states and 136334 transitions. Word has length 741 [2018-10-24 14:03:40,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:03:40,126 INFO L481 AbstractCegarLoop]: Abstraction has 127901 states and 136334 transitions. [2018-10-24 14:03:40,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:03:40,127 INFO L276 IsEmpty]: Start isEmpty. Operand 127901 states and 136334 transitions. [2018-10-24 14:03:40,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 929 [2018-10-24 14:03:40,184 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:03:40,185 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:03:40,185 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:03:40,185 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:03:40,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1833002094, now seen corresponding path program 1 times [2018-10-24 14:03:40,186 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:03:40,186 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:03:40,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:03:40,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:03:40,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:03:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:03:41,067 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-24 14:03:42,389 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 509 proven. 70 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-10-24 14:03:42,389 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:03:42,389 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:03:42,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:03:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:03:42,635 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:03:43,378 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 509 proven. 70 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-10-24 14:03:43,399 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 14:03:43,399 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2018-10-24 14:03:43,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:03:43,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:03:43,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:03:43,402 INFO L87 Difference]: Start difference. First operand 127901 states and 136334 transitions. Second operand 6 states. [2018-10-24 14:04:05,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:04:05,984 INFO L93 Difference]: Finished difference Result 297923 states and 318031 transitions. [2018-10-24 14:04:05,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 14:04:05,985 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 928 [2018-10-24 14:04:05,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:04:06,181 INFO L225 Difference]: With dead ends: 297923 [2018-10-24 14:04:06,181 INFO L226 Difference]: Without dead ends: 170776 [2018-10-24 14:04:06,242 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 936 GetRequests, 929 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:04:06,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170776 states. [2018-10-24 14:04:08,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170776 to 139181. [2018-10-24 14:04:08,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139181 states. [2018-10-24 14:04:08,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139181 states to 139181 states and 146449 transitions. [2018-10-24 14:04:08,556 INFO L78 Accepts]: Start accepts. Automaton has 139181 states and 146449 transitions. Word has length 928 [2018-10-24 14:04:08,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:04:08,557 INFO L481 AbstractCegarLoop]: Abstraction has 139181 states and 146449 transitions. [2018-10-24 14:04:08,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:04:08,557 INFO L276 IsEmpty]: Start isEmpty. Operand 139181 states and 146449 transitions. [2018-10-24 14:04:08,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1060 [2018-10-24 14:04:08,625 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:04:08,626 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:04:08,627 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:04:08,627 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:04:08,627 INFO L82 PathProgramCache]: Analyzing trace with hash -466829575, now seen corresponding path program 1 times [2018-10-24 14:04:08,627 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:04:08,627 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:04:08,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:04:08,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:04:08,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:04:08,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:04:10,147 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 807 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2018-10-24 14:04:10,147 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:04:10,147 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:04:10,148 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:04:10,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:04:10,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:04:10,149 INFO L87 Difference]: Start difference. First operand 139181 states and 146449 transitions. Second operand 4 states. [2018-10-24 14:04:17,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:04:17,280 INFO L93 Difference]: Finished difference Result 288888 states and 304212 transitions. [2018-10-24 14:04:17,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:04:17,280 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1059 [2018-10-24 14:04:17,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:04:17,430 INFO L225 Difference]: With dead ends: 288888 [2018-10-24 14:04:17,430 INFO L226 Difference]: Without dead ends: 150461 [2018-10-24 14:04:17,503 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:04:18,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150461 states. [2018-10-24 14:04:19,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150461 to 148205. [2018-10-24 14:04:19,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148205 states. [2018-10-24 14:04:19,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148205 states to 148205 states and 154702 transitions. [2018-10-24 14:04:19,213 INFO L78 Accepts]: Start accepts. Automaton has 148205 states and 154702 transitions. Word has length 1059 [2018-10-24 14:04:19,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:04:19,213 INFO L481 AbstractCegarLoop]: Abstraction has 148205 states and 154702 transitions. [2018-10-24 14:04:19,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:04:19,214 INFO L276 IsEmpty]: Start isEmpty. Operand 148205 states and 154702 transitions. [2018-10-24 14:04:19,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1118 [2018-10-24 14:04:19,283 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:04:19,284 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:04:19,284 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:04:19,284 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:04:19,285 INFO L82 PathProgramCache]: Analyzing trace with hash -168935257, now seen corresponding path program 1 times [2018-10-24 14:04:19,285 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:04:19,285 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:04:19,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:04:19,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:04:19,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:04:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:04:20,066 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-10-24 14:04:21,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1399 backedges. 995 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2018-10-24 14:04:21,084 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:04:21,084 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:04:21,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:04:21,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:04:21,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:04:21,085 INFO L87 Difference]: Start difference. First operand 148205 states and 154702 transitions. Second operand 4 states. [2018-10-24 14:04:28,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:04:28,973 INFO L93 Difference]: Finished difference Result 294146 states and 306996 transitions. [2018-10-24 14:04:28,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:04:28,973 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1117 [2018-10-24 14:04:28,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:04:29,116 INFO L225 Difference]: With dead ends: 294146 [2018-10-24 14:04:29,117 INFO L226 Difference]: Without dead ends: 139915 [2018-10-24 14:04:29,191 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:04:29,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139915 states. [2018-10-24 14:04:30,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139915 to 133899. [2018-10-24 14:04:30,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133899 states. [2018-10-24 14:04:30,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133899 states to 133899 states and 138239 transitions. [2018-10-24 14:04:30,538 INFO L78 Accepts]: Start accepts. Automaton has 133899 states and 138239 transitions. Word has length 1117 [2018-10-24 14:04:30,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:04:30,539 INFO L481 AbstractCegarLoop]: Abstraction has 133899 states and 138239 transitions. [2018-10-24 14:04:30,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:04:30,539 INFO L276 IsEmpty]: Start isEmpty. Operand 133899 states and 138239 transitions. [2018-10-24 14:04:30,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1120 [2018-10-24 14:04:30,593 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:04:30,594 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:04:30,594 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:04:30,594 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:04:30,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1846696478, now seen corresponding path program 1 times [2018-10-24 14:04:30,595 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:04:30,595 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:04:30,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:04:30,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:04:30,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:04:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:04:35,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1405 backedges. 658 proven. 0 refuted. 0 times theorem prover too weak. 747 trivial. 0 not checked. [2018-10-24 14:04:35,648 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:04:35,648 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:04:35,649 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:04:35,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:04:35,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:04:35,650 INFO L87 Difference]: Start difference. First operand 133899 states and 138239 transitions. Second operand 3 states. [2018-10-24 14:04:41,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:04:41,162 INFO L93 Difference]: Finished difference Result 303891 states and 314133 transitions. [2018-10-24 14:04:41,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:04:41,163 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1119 [2018-10-24 14:04:41,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:04:41,331 INFO L225 Difference]: With dead ends: 303891 [2018-10-24 14:04:41,331 INFO L226 Difference]: Without dead ends: 170746 [2018-10-24 14:04:41,381 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:04:41,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170746 states. Received shutdown request... [2018-10-24 14:04:41,516 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:04:41,520 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:04:41,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:04:41 BoogieIcfgContainer [2018-10-24 14:04:41,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:04:41,522 INFO L168 Benchmark]: Toolchain (without parser) took 220156.65 ms. Allocated memory was 1.5 GB in the beginning and 4.6 GB in the end (delta: 3.0 GB). Free memory was 1.4 GB in the beginning and 3.7 GB in the end (delta: -2.2 GB). Peak memory consumption was 788.6 MB. Max. memory is 7.1 GB. [2018-10-24 14:04:41,523 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 14:04:41,524 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2132.41 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-10-24 14:04:41,524 INFO L168 Benchmark]: Boogie Procedure Inliner took 645.07 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 810.0 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 58.3 MB. Max. memory is 7.1 GB. [2018-10-24 14:04:41,525 INFO L168 Benchmark]: Boogie Preprocessor took 313.17 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 42.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 7.1 GB. [2018-10-24 14:04:41,526 INFO L168 Benchmark]: RCFGBuilder took 9128.99 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 219.7 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -169.2 MB). Peak memory consumption was 636.3 MB. Max. memory is 7.1 GB. [2018-10-24 14:04:41,527 INFO L168 Benchmark]: TraceAbstraction took 207931.26 ms. Allocated memory was 2.6 GB in the beginning and 4.6 GB in the end (delta: 2.0 GB). Free memory was 2.4 GB in the beginning and 3.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 687.3 MB. Max. memory is 7.1 GB. [2018-10-24 14:04:41,536 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2132.41 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 645.07 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 810.0 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 58.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 313.17 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 42.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9128.99 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 219.7 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -169.2 MB). Peak memory consumption was 636.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 207931.26 ms. Allocated memory was 2.6 GB in the beginning and 4.6 GB in the end (delta: 2.0 GB). Free memory was 2.4 GB in the beginning and 3.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 687.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 96). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 819 locations, 1 error locations. TIMEOUT Result, 207.8s OverallTime, 14 OverallIterations, 6 TraceHistogramMax, 173.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7608 SDtfs, 27643 SDslu, 1339 SDs, 0 SdLazy, 77377 SolverSat, 16460 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 140.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1387 GetRequests, 1340 SyntacticMatches, 9 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148205occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 15.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 89593 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 7.9s InterpolantComputationTime, 8199 NumberOfCodeBlocks, 8199 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 8183 ConstructedInterpolants, 0 QuantifiedInterpolants, 12400132 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1600 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 16 InterpolantComputations, 13 PerfectInterpolantSequences, 7343/7488 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown