java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label46_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 21:06:00,250 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 21:06:00,253 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 21:06:00,267 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 21:06:00,267 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 21:06:00,268 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 21:06:00,269 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 21:06:00,271 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 21:06:00,280 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 21:06:00,283 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 21:06:00,283 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 21:06:00,286 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 21:06:00,287 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 21:06:00,291 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 21:06:00,292 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 21:06:00,293 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 21:06:00,294 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 21:06:00,295 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 21:06:00,300 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 21:06:00,301 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 21:06:00,302 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 21:06:00,305 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 21:06:00,310 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 21:06:00,310 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 21:06:00,310 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 21:06:00,311 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 21:06:00,312 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 21:06:00,313 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 21:06:00,313 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 21:06:00,314 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 21:06:00,314 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 21:06:00,315 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-23 21:06:00,317 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-23 21:06:00,337 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 21:06:00,337 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 21:06:00,339 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 21:06:00,339 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 21:06:00,339 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 21:06:00,340 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 21:06:00,340 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 21:06:00,340 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 21:06:00,340 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 21:06:00,341 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 21:06:00,342 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 21:06:00,342 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 21:06:00,342 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 21:06:00,342 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 21:06:00,342 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 21:06:00,343 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 21:06:00,343 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 21:06:00,343 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 21:06:00,343 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 21:06:00,343 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 21:06:00,344 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 21:06:00,345 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 21:06:00,345 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 21:06:00,345 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 21:06:00,345 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 21:06:00,345 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 21:06:00,346 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 21:06:00,346 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 21:06:00,392 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 21:06:00,408 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 21:06:00,412 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 21:06:00,413 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 21:06:00,414 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 21:06:00,415 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label46_true-unreach-call.c [2018-10-23 21:06:00,477 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6d2150439/bb6a43332dd749298305cb6413646d12/FLAGaa23dea13 [2018-10-23 21:06:01,385 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 21:06:01,386 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label46_true-unreach-call.c [2018-10-23 21:06:01,436 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6d2150439/bb6a43332dd749298305cb6413646d12/FLAGaa23dea13 [2018-10-23 21:06:01,453 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6d2150439/bb6a43332dd749298305cb6413646d12 [2018-10-23 21:06:01,467 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 21:06:01,470 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 21:06:01,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 21:06:01,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 21:06:01,477 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 21:06:01,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:06:01" (1/1) ... [2018-10-23 21:06:01,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e66237e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:01, skipping insertion in model container [2018-10-23 21:06:01,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:06:01" (1/1) ... [2018-10-23 21:06:01,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 21:06:01,759 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 21:06:03,690 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 21:06:03,695 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 21:06:04,817 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 21:06:04,867 INFO L193 MainTranslator]: Completed translation [2018-10-23 21:06:04,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:04 WrapperNode [2018-10-23 21:06:04,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 21:06:04,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 21:06:04,869 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 21:06:04,870 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 21:06:04,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:04" (1/1) ... [2018-10-23 21:06:04,969 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:04" (1/1) ... [2018-10-23 21:06:06,035 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 21:06:06,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 21:06:06,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 21:06:06,036 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 21:06:06,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:04" (1/1) ... [2018-10-23 21:06:06,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:04" (1/1) ... [2018-10-23 21:06:06,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:04" (1/1) ... [2018-10-23 21:06:06,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:04" (1/1) ... [2018-10-23 21:06:06,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:04" (1/1) ... [2018-10-23 21:06:06,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:04" (1/1) ... [2018-10-23 21:06:06,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:04" (1/1) ... [2018-10-23 21:06:06,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 21:06:06,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 21:06:06,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 21:06:06,810 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 21:06:06,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 21:06:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 21:06:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 21:06:06,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 21:06:24,061 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 21:06:24,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:06:24 BoogieIcfgContainer [2018-10-23 21:06:24,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 21:06:24,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 21:06:24,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 21:06:24,066 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 21:06:24,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:06:01" (1/3) ... [2018-10-23 21:06:24,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47498a65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:06:24, skipping insertion in model container [2018-10-23 21:06:24,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:04" (2/3) ... [2018-10-23 21:06:24,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47498a65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:06:24, skipping insertion in model container [2018-10-23 21:06:24,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:06:24" (3/3) ... [2018-10-23 21:06:24,073 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label46_true-unreach-call.c [2018-10-23 21:06:24,083 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 21:06:24,092 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 21:06:24,110 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 21:06:24,174 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 21:06:24,175 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 21:06:24,176 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 21:06:24,176 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 21:06:24,176 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 21:06:24,176 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 21:06:24,176 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 21:06:24,176 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 21:06:24,177 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 21:06:24,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-23 21:06:24,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-23 21:06:24,523 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:06:24,525 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:06:24,530 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:06:24,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:06:24,546 INFO L82 PathProgramCache]: Analyzing trace with hash 575043410, now seen corresponding path program 1 times [2018-10-23 21:06:24,548 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:06:24,549 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:06:24,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:06:24,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:06:24,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:06:24,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:06:24,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:06:24,937 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:06:24,937 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 21:06:24,942 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:06:24,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:06:24,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:06:24,960 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-23 21:06:53,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:06:53,294 INFO L93 Difference]: Finished difference Result 6361 states and 12176 transitions. [2018-10-23 21:06:53,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:06:53,296 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2018-10-23 21:06:53,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:06:53,352 INFO L225 Difference]: With dead ends: 6361 [2018-10-23 21:06:53,352 INFO L226 Difference]: Without dead ends: 4605 [2018-10-23 21:06:53,363 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:06:53,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4605 states. [2018-10-23 21:06:53,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4605 to 3148. [2018-10-23 21:06:53,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3148 states. [2018-10-23 21:06:53,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 5068 transitions. [2018-10-23 21:06:53,655 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 5068 transitions. Word has length 33 [2018-10-23 21:06:53,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:06:53,656 INFO L481 AbstractCegarLoop]: Abstraction has 3148 states and 5068 transitions. [2018-10-23 21:06:53,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:06:53,656 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 5068 transitions. [2018-10-23 21:06:53,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-23 21:06:53,664 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:06:53,667 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:06:53,667 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:06:53,668 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:06:53,668 INFO L82 PathProgramCache]: Analyzing trace with hash -795561107, now seen corresponding path program 1 times [2018-10-23 21:06:53,668 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:06:53,668 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:06:53,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:06:53,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:06:53,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:06:53,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:06:54,732 WARN L179 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-10-23 21:06:54,984 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:06:54,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:06:54,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 21:06:54,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 21:06:54,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 21:06:54,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-23 21:06:54,987 INFO L87 Difference]: Start difference. First operand 3148 states and 5068 transitions. Second operand 6 states. [2018-10-23 21:06:55,170 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-23 21:07:27,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:07:27,892 INFO L93 Difference]: Finished difference Result 13170 states and 20020 transitions. [2018-10-23 21:07:27,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-23 21:07:27,892 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2018-10-23 21:07:27,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:07:27,933 INFO L225 Difference]: With dead ends: 13170 [2018-10-23 21:07:27,934 INFO L226 Difference]: Without dead ends: 10024 [2018-10-23 21:07:27,940 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-23 21:07:27,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10024 states. [2018-10-23 21:07:28,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10024 to 8652. [2018-10-23 21:07:28,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8652 states. [2018-10-23 21:07:28,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8652 states to 8652 states and 12036 transitions. [2018-10-23 21:07:28,109 INFO L78 Accepts]: Start accepts. Automaton has 8652 states and 12036 transitions. Word has length 101 [2018-10-23 21:07:28,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:07:28,110 INFO L481 AbstractCegarLoop]: Abstraction has 8652 states and 12036 transitions. [2018-10-23 21:07:28,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 21:07:28,110 INFO L276 IsEmpty]: Start isEmpty. Operand 8652 states and 12036 transitions. [2018-10-23 21:07:28,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-10-23 21:07:28,119 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:07:28,119 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 21:07:28,119 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:07:28,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:07:28,120 INFO L82 PathProgramCache]: Analyzing trace with hash -881435059, now seen corresponding path program 1 times [2018-10-23 21:07:28,120 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:07:28,120 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:07:28,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:07:28,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:07:28,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:07:28,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:07:28,707 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-23 21:07:29,147 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-10-23 21:07:29,148 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:07:29,148 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 21:07:29,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 21:07:29,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 21:07:29,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-23 21:07:29,150 INFO L87 Difference]: Start difference. First operand 8652 states and 12036 transitions. Second operand 7 states. [2018-10-23 21:08:05,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:08:05,702 INFO L93 Difference]: Finished difference Result 26877 states and 36467 transitions. [2018-10-23 21:08:05,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 21:08:05,704 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 309 [2018-10-23 21:08:05,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:08:05,764 INFO L225 Difference]: With dead ends: 26877 [2018-10-23 21:08:05,764 INFO L226 Difference]: Without dead ends: 18227 [2018-10-23 21:08:05,775 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-23 21:08:05,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18227 states. [2018-10-23 21:08:06,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18227 to 15492. [2018-10-23 21:08:06,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15492 states. [2018-10-23 21:08:06,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15492 states to 15492 states and 19188 transitions. [2018-10-23 21:08:06,066 INFO L78 Accepts]: Start accepts. Automaton has 15492 states and 19188 transitions. Word has length 309 [2018-10-23 21:08:06,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:08:06,067 INFO L481 AbstractCegarLoop]: Abstraction has 15492 states and 19188 transitions. [2018-10-23 21:08:06,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-23 21:08:06,068 INFO L276 IsEmpty]: Start isEmpty. Operand 15492 states and 19188 transitions. [2018-10-23 21:08:06,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2018-10-23 21:08:06,074 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:08:06,074 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 21:08:06,075 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:08:06,075 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:08:06,075 INFO L82 PathProgramCache]: Analyzing trace with hash -304753805, now seen corresponding path program 1 times [2018-10-23 21:08:06,075 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:08:06,075 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:08:06,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:08:06,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:08:06,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:08:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:08:06,540 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 61 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:08:06,541 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:08:06,541 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 21:08:06,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:08:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:08:06,693 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 21:08:06,884 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:08:06,917 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 21:08:06,918 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-23 21:08:06,919 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 21:08:06,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 21:08:06,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-23 21:08:06,919 INFO L87 Difference]: Start difference. First operand 15492 states and 19188 transitions. Second operand 5 states. [2018-10-23 21:08:43,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:08:43,461 INFO L93 Difference]: Finished difference Result 70980 states and 95206 transitions. [2018-10-23 21:08:43,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 21:08:43,462 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 337 [2018-10-23 21:08:43,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:08:43,556 INFO L225 Difference]: With dead ends: 70980 [2018-10-23 21:08:43,556 INFO L226 Difference]: Without dead ends: 51390 [2018-10-23 21:08:43,577 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-23 21:08:43,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51390 states. [2018-10-23 21:08:44,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51390 to 51308. [2018-10-23 21:08:44,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51308 states. [2018-10-23 21:08:44,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51308 states to 51308 states and 60471 transitions. [2018-10-23 21:08:44,465 INFO L78 Accepts]: Start accepts. Automaton has 51308 states and 60471 transitions. Word has length 337 [2018-10-23 21:08:44,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:08:44,466 INFO L481 AbstractCegarLoop]: Abstraction has 51308 states and 60471 transitions. [2018-10-23 21:08:44,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 21:08:44,466 INFO L276 IsEmpty]: Start isEmpty. Operand 51308 states and 60471 transitions. [2018-10-23 21:08:44,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2018-10-23 21:08:44,472 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:08:44,472 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:08:44,473 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:08:44,473 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:08:44,473 INFO L82 PathProgramCache]: Analyzing trace with hash -199585925, now seen corresponding path program 1 times [2018-10-23 21:08:44,473 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:08:44,473 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:08:44,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:08:44,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:08:44,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:08:44,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:08:45,070 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 61 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-23 21:08:45,070 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:08:45,070 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 21:08:45,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:08:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:08:45,188 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 21:08:45,294 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:08:45,325 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 21:08:45,325 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-23 21:08:45,326 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:08:45,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:08:45,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:08:45,327 INFO L87 Difference]: Start difference. First operand 51308 states and 60471 transitions. Second operand 4 states. [2018-10-23 21:09:14,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:09:14,435 INFO L93 Difference]: Finished difference Result 184882 states and 220616 transitions. [2018-10-23 21:09:14,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:09:14,436 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 347 [2018-10-23 21:09:14,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:09:15,059 INFO L225 Difference]: With dead ends: 184882 [2018-10-23 21:09:15,059 INFO L226 Difference]: Without dead ends: 134942 [2018-10-23 21:09:15,105 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:09:15,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134942 states. [2018-10-23 21:09:16,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134942 to 86820. [2018-10-23 21:09:16,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86820 states. [2018-10-23 21:09:16,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86820 states to 86820 states and 101825 transitions. [2018-10-23 21:09:16,265 INFO L78 Accepts]: Start accepts. Automaton has 86820 states and 101825 transitions. Word has length 347 [2018-10-23 21:09:16,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:09:16,266 INFO L481 AbstractCegarLoop]: Abstraction has 86820 states and 101825 transitions. [2018-10-23 21:09:16,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:09:16,267 INFO L276 IsEmpty]: Start isEmpty. Operand 86820 states and 101825 transitions. [2018-10-23 21:09:16,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2018-10-23 21:09:16,285 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:09:16,285 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:09:16,286 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:09:16,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:09:16,286 INFO L82 PathProgramCache]: Analyzing trace with hash 633175195, now seen corresponding path program 1 times [2018-10-23 21:09:16,286 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:09:16,287 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:09:16,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:09:16,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:09:16,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:09:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:09:17,362 WARN L179 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-10-23 21:09:17,674 WARN L179 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 22 [2018-10-23 21:09:18,301 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 459 proven. 4 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2018-10-23 21:09:18,301 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:09:18,301 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 21:09:18,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:09:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:09:18,480 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 21:09:19,284 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 463 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2018-10-23 21:09:19,305 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 21:09:19,306 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-23 21:09:19,307 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 21:09:19,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 21:09:19,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 21:09:19,307 INFO L87 Difference]: Start difference. First operand 86820 states and 101825 transitions. Second operand 5 states. [2018-10-23 21:09:40,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:09:40,657 INFO L93 Difference]: Finished difference Result 183203 states and 213685 transitions. [2018-10-23 21:09:40,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-23 21:09:40,658 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 650 [2018-10-23 21:09:40,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:09:40,771 INFO L225 Difference]: With dead ends: 183203 [2018-10-23 21:09:40,771 INFO L226 Difference]: Without dead ends: 93650 [2018-10-23 21:09:40,824 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 656 GetRequests, 650 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-23 21:09:40,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93650 states. [2018-10-23 21:09:41,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93650 to 90916. [2018-10-23 21:09:41,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90916 states. [2018-10-23 21:09:41,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90916 states to 90916 states and 100329 transitions. [2018-10-23 21:09:41,616 INFO L78 Accepts]: Start accepts. Automaton has 90916 states and 100329 transitions. Word has length 650 [2018-10-23 21:09:41,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:09:41,616 INFO L481 AbstractCegarLoop]: Abstraction has 90916 states and 100329 transitions. [2018-10-23 21:09:41,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 21:09:41,617 INFO L276 IsEmpty]: Start isEmpty. Operand 90916 states and 100329 transitions. [2018-10-23 21:09:41,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 735 [2018-10-23 21:09:41,624 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:09:41,624 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:09:41,625 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:09:41,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:09:41,625 INFO L82 PathProgramCache]: Analyzing trace with hash -862785651, now seen corresponding path program 1 times [2018-10-23 21:09:41,625 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:09:41,626 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:09:41,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:09:41,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:09:41,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:09:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:09:42,610 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2018-10-23 21:09:42,611 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:09:42,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 21:09:42,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 21:09:42,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 21:09:42,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 21:09:42,613 INFO L87 Difference]: Start difference. First operand 90916 states and 100329 transitions. Second operand 5 states. Received shutdown request... [2018-10-23 21:09:59,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 21:09:59,733 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 21:09:59,739 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 21:09:59,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:09:59 BoogieIcfgContainer [2018-10-23 21:09:59,739 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 21:09:59,740 INFO L168 Benchmark]: Toolchain (without parser) took 238272.31 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-23 21:09:59,742 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-10-23 21:09:59,742 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3397.44 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. [2018-10-23 21:09:59,743 INFO L168 Benchmark]: Boogie Procedure Inliner took 1166.31 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 865.6 MB). Free memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-23 21:09:59,744 INFO L168 Benchmark]: Boogie Preprocessor took 773.68 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 81.4 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. [2018-10-23 21:09:59,745 INFO L168 Benchmark]: RCFGBuilder took 17252.01 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 256.4 MB). Free memory was 2.1 GB in the beginning and 1.5 GB in the end (delta: 540.3 MB). Peak memory consumption was 796.7 MB. Max. memory is 7.1 GB. [2018-10-23 21:09:59,746 INFO L168 Benchmark]: TraceAbstraction took 215676.63 ms. Allocated memory was 2.6 GB in the beginning and 4.0 GB in the end (delta: 1.3 GB). Free memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: -991.9 MB). Peak memory consumption was 328.8 MB. Max. memory is 7.1 GB. [2018-10-23 21:09:59,751 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3397.44 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1166.31 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 865.6 MB). Free memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 773.68 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 81.4 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17252.01 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 256.4 MB). Free memory was 2.1 GB in the beginning and 1.5 GB in the end (delta: 540.3 MB). Peak memory consumption was 796.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215676.63 ms. Allocated memory was 2.6 GB in the beginning and 4.0 GB in the end (delta: 1.3 GB). Free memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: -991.9 MB). Peak memory consumption was 328.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 112). Cancelled while BasicCegarLoop was constructing difference of abstraction (90916states) and FLOYD_HOARE automaton (currently 5 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (81813 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 215.5s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 203.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8597 SDtfs, 47106 SDslu, 3795 SDs, 0 SdLazy, 88912 SolverSat, 17648 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 175.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1376 GetRequests, 1340 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90916occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 56502 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 3845 NumberOfCodeBlocks, 3845 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 3835 ConstructedInterpolants, 0 QuantifiedInterpolants, 6748275 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1628 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 2146/2219 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown