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_label58_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:47:43,392 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:47:43,394 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:47:43,406 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:47:43,407 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:47:43,408 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:47:43,409 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:47:43,411 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:47:43,413 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:47:43,414 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:47:43,415 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:47:43,417 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:47:43,418 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:47:43,419 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:47:43,422 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:47:43,422 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:47:43,424 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:47:43,426 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:47:43,429 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:47:43,430 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:47:43,440 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:47:43,444 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:47:43,447 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 14:47:43,447 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 14:47:43,447 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 14:47:43,451 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 14:47:43,452 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 14:47:43,452 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 14:47:43,459 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 14:47:43,460 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 14:47:43,460 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 14:47:43,463 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 14:47:43,463 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 14:47:43,464 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 14:47:43,465 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 14:47:43,465 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 14:47:43,467 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 14:47:43,490 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:47:43,490 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:47:43,491 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:47:43,491 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:47:43,492 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:47:43,492 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:47:43,492 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:47:43,492 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:47:43,493 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:47:43,493 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:47:43,493 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:47:43,493 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:47:43,493 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:47:43,493 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:47:43,494 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:47:43,494 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:47:43,494 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:47:43,494 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:47:43,494 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:47:43,495 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:47:43,495 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:47:43,495 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:47:43,495 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:47:43,495 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:47:43,496 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:47:43,496 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:47:43,496 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:47:43,496 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:47:43,552 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:47:43,568 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:47:43,573 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:47:43,575 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:47:43,575 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:47:43,576 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label58_false-unreach-call.c [2018-10-24 14:47:43,643 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a23d33151/b5e6ee1c58504a3db81816e59e62bda1/FLAG5ca36897f [2018-10-24 14:47:44,529 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:47:44,530 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label58_false-unreach-call.c [2018-10-24 14:47:44,571 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a23d33151/b5e6ee1c58504a3db81816e59e62bda1/FLAG5ca36897f [2018-10-24 14:47:44,592 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a23d33151/b5e6ee1c58504a3db81816e59e62bda1 [2018-10-24 14:47:44,606 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:47:44,608 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:47:44,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:47:44,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:47:44,617 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:47:44,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:47:44" (1/1) ... [2018-10-24 14:47:44,622 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 02:47:44, skipping insertion in model container [2018-10-24 14:47:44,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:47:44" (1/1) ... [2018-10-24 14:47:44,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:47:44,897 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:47:46,907 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:47:46,911 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:47:48,047 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:47:48,102 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:47:48,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:48 WrapperNode [2018-10-24 14:47:48,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:47:48,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:47:48,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:47:48,104 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:47:48,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:48" (1/1) ... [2018-10-24 14:47:48,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:48" (1/1) ... [2018-10-24 14:47:49,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:47:49,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:47:49,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:47:49,290 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:47:49,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:48" (1/1) ... [2018-10-24 14:47:49,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:48" (1/1) ... [2018-10-24 14:47:49,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:48" (1/1) ... [2018-10-24 14:47:49,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:48" (1/1) ... [2018-10-24 14:47:49,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:48" (1/1) ... [2018-10-24 14:47:49,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:48" (1/1) ... [2018-10-24 14:47:49,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:48" (1/1) ... [2018-10-24 14:47:49,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:47:49,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:47:49,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:47:49,924 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:47:49,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:48" (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 14:47:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:47:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:47:49,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:48:07,003 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:48:07,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:48:07 BoogieIcfgContainer [2018-10-24 14:48:07,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:48:07,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:48:07,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:48:07,009 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:48:07,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:47:44" (1/3) ... [2018-10-24 14:48:07,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772e6ae4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:48:07, skipping insertion in model container [2018-10-24 14:48:07,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:48" (2/3) ... [2018-10-24 14:48:07,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772e6ae4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:48:07, skipping insertion in model container [2018-10-24 14:48:07,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:48:07" (3/3) ... [2018-10-24 14:48:07,013 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label58_false-unreach-call.c [2018-10-24 14:48:07,023 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:48:07,034 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:48:07,051 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:48:07,101 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:48:07,102 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:48:07,102 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:48:07,102 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:48:07,102 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:48:07,102 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:48:07,103 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:48:07,103 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:48:07,103 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:48:07,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-24 14:48:07,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-24 14:48:07,161 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:48:07,162 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:48:07,164 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:48:07,170 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:48:07,170 INFO L82 PathProgramCache]: Analyzing trace with hash 340357962, now seen corresponding path program 1 times [2018-10-24 14:48:07,172 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:48:07,172 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:48:07,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:07,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:48:07,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:48:07,488 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 14:48:07,491 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:48:07,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:48:07,495 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:48:07,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:48:07,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:48:07,511 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-24 14:48:31,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:48:31,845 INFO L93 Difference]: Finished difference Result 6409 states and 12226 transitions. [2018-10-24 14:48:31,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:48:31,847 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-10-24 14:48:31,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:48:31,900 INFO L225 Difference]: With dead ends: 6409 [2018-10-24 14:48:31,901 INFO L226 Difference]: Without dead ends: 4653 [2018-10-24 14:48:31,910 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 14:48:31,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4653 states. [2018-10-24 14:48:32,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4653 to 4617. [2018-10-24 14:48:32,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4617 states. [2018-10-24 14:48:32,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4617 states to 4617 states and 7623 transitions. [2018-10-24 14:48:32,116 INFO L78 Accepts]: Start accepts. Automaton has 4617 states and 7623 transitions. Word has length 14 [2018-10-24 14:48:32,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:48:32,116 INFO L481 AbstractCegarLoop]: Abstraction has 4617 states and 7623 transitions. [2018-10-24 14:48:32,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:48:32,117 INFO L276 IsEmpty]: Start isEmpty. Operand 4617 states and 7623 transitions. [2018-10-24 14:48:32,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-10-24 14:48:32,120 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:48:32,121 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:48:32,121 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:48:32,121 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:48:32,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1653441906, now seen corresponding path program 1 times [2018-10-24 14:48:32,122 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:48:32,122 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:48:32,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:32,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:48:32,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:48:32,478 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-24 14:48:33,104 WARN L179 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2018-10-24 14:48:33,413 WARN L179 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-10-24 14:48:33,737 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:48:33,738 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:48:33,738 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 14:48:33,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:48:33,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:48:33,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:48:33,741 INFO L87 Difference]: Start difference. First operand 4617 states and 7623 transitions. Second operand 6 states. [2018-10-24 14:49:09,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:49:09,204 INFO L93 Difference]: Finished difference Result 20192 states and 32413 transitions. [2018-10-24 14:49:09,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 14:49:09,206 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 82 [2018-10-24 14:49:09,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:49:09,274 INFO L225 Difference]: With dead ends: 20192 [2018-10-24 14:49:09,274 INFO L226 Difference]: Without dead ends: 15577 [2018-10-24 14:49:09,283 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:49:09,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15577 states. [2018-10-24 14:49:09,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15577 to 14204. [2018-10-24 14:49:09,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14204 states. [2018-10-24 14:49:09,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14204 states to 14204 states and 19574 transitions. [2018-10-24 14:49:09,564 INFO L78 Accepts]: Start accepts. Automaton has 14204 states and 19574 transitions. Word has length 82 [2018-10-24 14:49:09,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:49:09,565 INFO L481 AbstractCegarLoop]: Abstraction has 14204 states and 19574 transitions. [2018-10-24 14:49:09,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:49:09,565 INFO L276 IsEmpty]: Start isEmpty. Operand 14204 states and 19574 transitions. [2018-10-24 14:49:09,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2018-10-24 14:49:09,589 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:49:09,589 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:49:09,590 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:49:09,593 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:49:09,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1315430701, now seen corresponding path program 1 times [2018-10-24 14:49:09,593 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:49:09,594 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:49:09,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:09,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:49:09,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:09,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:49:10,394 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 18 [2018-10-24 14:49:10,770 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-10-24 14:49:10,770 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:49:10,771 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 14:49:10,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 14:49:10,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 14:49:10,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:49:10,773 INFO L87 Difference]: Start difference. First operand 14204 states and 19574 transitions. Second operand 7 states. [2018-10-24 14:49:46,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:49:46,356 INFO L93 Difference]: Finished difference Result 40712 states and 55789 transitions. [2018-10-24 14:49:46,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 14:49:46,357 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 290 [2018-10-24 14:49:46,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:49:46,423 INFO L225 Difference]: With dead ends: 40712 [2018-10-24 14:49:46,424 INFO L226 Difference]: Without dead ends: 26510 [2018-10-24 14:49:46,437 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-24 14:49:46,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26510 states. [2018-10-24 14:49:46,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26510 to 23774. [2018-10-24 14:49:46,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23774 states. [2018-10-24 14:49:46,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23774 states to 23774 states and 29481 transitions. [2018-10-24 14:49:46,840 INFO L78 Accepts]: Start accepts. Automaton has 23774 states and 29481 transitions. Word has length 290 [2018-10-24 14:49:46,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:49:46,841 INFO L481 AbstractCegarLoop]: Abstraction has 23774 states and 29481 transitions. [2018-10-24 14:49:46,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 14:49:46,841 INFO L276 IsEmpty]: Start isEmpty. Operand 23774 states and 29481 transitions. [2018-10-24 14:49:46,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2018-10-24 14:49:46,845 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:49:46,846 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:49:46,846 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:49:46,846 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:49:46,846 INFO L82 PathProgramCache]: Analyzing trace with hash 557595975, now seen corresponding path program 1 times [2018-10-24 14:49:46,847 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:49:46,847 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:49:46,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:46,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:49:46,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:46,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:49:47,353 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 23 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:49:47,354 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:49:47,354 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 14:49:47,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:49:47,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:49:47,534 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:49:47,671 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:49:47,696 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:49:47,697 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-24 14:49:47,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:49:47,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:49:47,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:49:47,699 INFO L87 Difference]: Start difference. First operand 23774 states and 29481 transitions. Second operand 5 states. [2018-10-24 14:50:20,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:50:20,817 INFO L93 Difference]: Finished difference Result 109446 states and 147487 transitions. [2018-10-24 14:50:20,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 14:50:20,822 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 318 [2018-10-24 14:50:20,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:50:20,996 INFO L225 Difference]: With dead ends: 109446 [2018-10-24 14:50:20,996 INFO L226 Difference]: Without dead ends: 76108 [2018-10-24 14:50:21,033 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:50:21,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76108 states. [2018-10-24 14:50:22,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76108 to 76005. [2018-10-24 14:50:22,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76005 states. [2018-10-24 14:50:22,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76005 states to 76005 states and 90448 transitions. [2018-10-24 14:50:22,510 INFO L78 Accepts]: Start accepts. Automaton has 76005 states and 90448 transitions. Word has length 318 [2018-10-24 14:50:22,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:50:22,511 INFO L481 AbstractCegarLoop]: Abstraction has 76005 states and 90448 transitions. [2018-10-24 14:50:22,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:50:22,511 INFO L276 IsEmpty]: Start isEmpty. Operand 76005 states and 90448 transitions. [2018-10-24 14:50:22,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2018-10-24 14:50:22,516 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:50:22,517 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:50:22,517 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:50:22,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:50:22,518 INFO L82 PathProgramCache]: Analyzing trace with hash -405657409, now seen corresponding path program 1 times [2018-10-24 14:50:22,518 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:50:22,518 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:50:22,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:50:22,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:50:22,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:50:22,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:50:23,104 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 23 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-24 14:50:23,105 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:50:23,105 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 14:50:23,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:50:23,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:50:23,202 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:50:23,286 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:50:23,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:50:23,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 14:50:23,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:50:23,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:50:23,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:50:23,323 INFO L87 Difference]: Start difference. First operand 76005 states and 90448 transitions. Second operand 4 states. [2018-10-24 14:50:47,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:50:47,465 INFO L93 Difference]: Finished difference Result 271198 states and 327262 transitions. [2018-10-24 14:50:47,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:50:47,466 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 328 [2018-10-24 14:50:47,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:50:47,713 INFO L225 Difference]: With dead ends: 271198 [2018-10-24 14:50:47,713 INFO L226 Difference]: Without dead ends: 196561 [2018-10-24 14:50:47,778 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 328 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 14:50:47,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196561 states. [2018-10-24 14:50:49,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196561 to 126540. [2018-10-24 14:50:49,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126540 states. [2018-10-24 14:50:49,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126540 states to 126540 states and 149973 transitions. [2018-10-24 14:50:49,524 INFO L78 Accepts]: Start accepts. Automaton has 126540 states and 149973 transitions. Word has length 328 [2018-10-24 14:50:49,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:50:49,525 INFO L481 AbstractCegarLoop]: Abstraction has 126540 states and 149973 transitions. [2018-10-24 14:50:49,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:50:49,525 INFO L276 IsEmpty]: Start isEmpty. Operand 126540 states and 149973 transitions. [2018-10-24 14:50:49,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2018-10-24 14:50:49,554 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:50:49,554 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:50:49,555 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:50:49,555 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:50:49,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1765513336, now seen corresponding path program 1 times [2018-10-24 14:50:49,556 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:50:49,556 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:50:49,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:50:49,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:50:49,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:50:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:50:50,615 WARN L179 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-10-24 14:50:50,782 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 22 [2018-10-24 14:50:52,402 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 614 proven. 4 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2018-10-24 14:50:52,402 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:50:52,402 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:50:52,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:50:52,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:50:52,614 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:50:53,060 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 951 trivial. 0 not checked. [2018-10-24 14:50:53,100 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:50:53,101 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-24 14:50:53,103 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:50:53,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:50:53,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:50:53,104 INFO L87 Difference]: Start difference. First operand 126540 states and 149973 transitions. Second operand 6 states. [2018-10-24 14:51:28,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:51:28,977 INFO L93 Difference]: Finished difference Result 328218 states and 392967 transitions. [2018-10-24 14:51:28,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 14:51:28,977 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 794 [2018-10-24 14:51:28,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:51:29,180 INFO L225 Difference]: With dead ends: 328218 [2018-10-24 14:51:29,180 INFO L226 Difference]: Without dead ends: 196211 [2018-10-24 14:51:29,270 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 800 GetRequests, 794 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:51:29,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196211 states. [2018-10-24 14:51:31,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196211 to 155216. [2018-10-24 14:51:31,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155216 states. [2018-10-24 14:51:31,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155216 states to 155216 states and 171550 transitions. [2018-10-24 14:51:31,723 INFO L78 Accepts]: Start accepts. Automaton has 155216 states and 171550 transitions. Word has length 794 [2018-10-24 14:51:31,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:51:31,724 INFO L481 AbstractCegarLoop]: Abstraction has 155216 states and 171550 transitions. [2018-10-24 14:51:31,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:51:31,724 INFO L276 IsEmpty]: Start isEmpty. Operand 155216 states and 171550 transitions. [2018-10-24 14:51:31,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1085 [2018-10-24 14:51:31,780 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:51:31,781 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:51:31,781 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:51:31,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:51:31,782 INFO L82 PathProgramCache]: Analyzing trace with hash 510526005, now seen corresponding path program 1 times [2018-10-24 14:51:31,782 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:51:31,782 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:51:31,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:51:31,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:51:31,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:51:31,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:51:33,962 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2018-10-24 14:51:33,963 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:51:33,963 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:51:33,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:51:33,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:51:33,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:51:33,964 INFO L87 Difference]: Start difference. First operand 155216 states and 171550 transitions. Second operand 4 states. Received shutdown request... [2018-10-24 14:51:41,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:51:41,417 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:51:41,423 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:51:41,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:51:41 BoogieIcfgContainer [2018-10-24 14:51:41,423 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:51:41,424 INFO L168 Benchmark]: Toolchain (without parser) took 236817.04 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 164.8 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-10-24 14:51:41,425 INFO L168 Benchmark]: CDTParser took 0.29 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 14:51:41,426 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3491.06 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: 403.3 MB). Peak memory consumption was 403.3 MB. Max. memory is 7.1 GB. [2018-10-24 14:51:41,426 INFO L168 Benchmark]: Boogie Procedure Inliner took 1185.27 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 870.3 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-24 14:51:41,427 INFO L168 Benchmark]: Boogie Preprocessor took 633.82 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 102.0 MB). Peak memory consumption was 102.0 MB. Max. memory is 7.1 GB. [2018-10-24 14:51:41,428 INFO L168 Benchmark]: RCFGBuilder took 17080.69 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 290.5 MB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -388.0 MB). Peak memory consumption was 851.4 MB. Max. memory is 7.1 GB. [2018-10-24 14:51:41,429 INFO L168 Benchmark]: TraceAbstraction took 214417.68 ms. Allocated memory was 2.7 GB in the beginning and 3.6 GB in the end (delta: 926.4 MB). Free memory was 2.4 GB in the beginning and 1.2 GB in the end (delta: 1.2 GB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-24 14:51:41,435 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 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 3491.06 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: 403.3 MB). Peak memory consumption was 403.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1185.27 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 870.3 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 633.82 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 102.0 MB). Peak memory consumption was 102.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17080.69 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 290.5 MB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -388.0 MB). Peak memory consumption was 851.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 214417.68 ms. Allocated memory was 2.7 GB in the beginning and 3.6 GB in the end (delta: 926.4 MB). Free memory was 2.4 GB in the beginning and 1.2 GB in the end (delta: 1.2 GB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 55). Cancelled while BasicCegarLoop was constructing difference of abstraction (155216states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (79894 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 214.3s OverallTime, 7 OverallIterations, 5 TraceHistogramMax, 197.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7591 SDtfs, 46435 SDslu, 3745 SDs, 0 SdLazy, 93742 SolverSat, 21265 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 166.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1486 GetRequests, 1447 SyntacticMatches, 9 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155216occurred 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: 6.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 115264 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 4350 NumberOfCodeBlocks, 4350 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 4340 ConstructedInterpolants, 0 QuantifiedInterpolants, 7825146 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1755 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 2908/2981 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown