java -Xss4m -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label41_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-22 14:30:05,339 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-22 14:30:05,342 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-22 14:30:05,355 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-22 14:30:05,355 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-22 14:30:05,356 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-22 14:30:05,357 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-22 14:30:05,361 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-22 14:30:05,362 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-22 14:30:05,364 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-22 14:30:05,365 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-22 14:30:05,365 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-22 14:30:05,366 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-22 14:30:05,369 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-22 14:30:05,370 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-22 14:30:05,371 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-22 14:30:05,372 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-22 14:30:05,381 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-22 14:30:05,382 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-22 14:30:05,384 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-22 14:30:05,385 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-22 14:30:05,388 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-22 14:30:05,390 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-22 14:30:05,390 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-22 14:30:05,390 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-22 14:30:05,393 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-22 14:30:05,393 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-22 14:30:05,394 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-22 14:30:05,395 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-22 14:30:05,395 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-22 14:30:05,400 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-22 14:30:05,401 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-22 14:30:05,403 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-22 14:30:05,428 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-22 14:30:05,428 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-22 14:30:05,432 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-22 14:30:05,432 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-22 14:30:05,433 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-22 14:30:05,433 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-22 14:30:05,433 INFO L133 SettingsManager]: * Use SBE=true [2018-07-22 14:30:05,434 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-22 14:30:05,434 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-22 14:30:05,434 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-22 14:30:05,434 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-22 14:30:05,434 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-22 14:30:05,434 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-22 14:30:05,435 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-22 14:30:05,436 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-22 14:30:05,436 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-22 14:30:05,436 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-22 14:30:05,436 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-22 14:30:05,437 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-22 14:30:05,437 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-22 14:30:05,437 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-22 14:30:05,437 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-22 14:30:05,437 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-22 14:30:05,437 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-22 14:30:05,438 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-22 14:30:05,438 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-22 14:30:05,438 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-22 14:30:05,438 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-22 14:30:05,438 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-22 14:30:05,490 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-22 14:30:05,507 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-22 14:30:05,513 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-22 14:30:05,514 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-22 14:30:05,515 INFO L276 PluginConnector]: CDTParser initialized [2018-07-22 14:30:05,516 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label41_true-unreach-call.c [2018-07-22 14:30:05,892 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/9ece85b0a/f8f6b53bfbd34e86bb4cba2c93282897/FLAG2a6e4e3aa [2018-07-22 14:30:06,363 INFO L276 CDTParser]: Found 1 translation units. [2018-07-22 14:30:06,364 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label41_true-unreach-call.c [2018-07-22 14:30:06,429 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/9ece85b0a/f8f6b53bfbd34e86bb4cba2c93282897/FLAG2a6e4e3aa [2018-07-22 14:30:06,451 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/9ece85b0a/f8f6b53bfbd34e86bb4cba2c93282897 [2018-07-22 14:30:06,462 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-22 14:30:06,469 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-22 14:30:06,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-22 14:30:06,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-22 14:30:06,479 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-22 14:30:06,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:30:06" (1/1) ... [2018-07-22 14:30:06,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67aa9cc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:06, skipping insertion in model container [2018-07-22 14:30:06,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:30:06" (1/1) ... [2018-07-22 14:30:06,765 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-22 14:30:07,649 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 14:30:07,669 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-22 14:30:08,147 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 14:30:08,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:08 WrapperNode [2018-07-22 14:30:08,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-22 14:30:08,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-22 14:30:08,330 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-22 14:30:08,330 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-22 14:30:08,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:08" (1/1) ... [2018-07-22 14:30:08,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:08" (1/1) ... [2018-07-22 14:30:08,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-22 14:30:08,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-22 14:30:08,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-22 14:30:08,802 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-22 14:30:09,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:08" (1/1) ... [2018-07-22 14:30:09,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:08" (1/1) ... [2018-07-22 14:30:09,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:08" (1/1) ... [2018-07-22 14:30:09,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:08" (1/1) ... [2018-07-22 14:30:09,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:08" (1/1) ... [2018-07-22 14:30:09,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:08" (1/1) ... [2018-07-22 14:30:09,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:08" (1/1) ... [2018-07-22 14:30:09,780 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-22 14:30:09,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-22 14:30:09,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-22 14:30:09,781 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-22 14:30:09,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:08" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-22 14:30:09,853 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-22 14:30:09,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-22 14:30:09,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-22 14:30:20,116 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-22 14:30:20,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:30:20 BoogieIcfgContainer [2018-07-22 14:30:20,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-22 14:30:20,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-22 14:30:20,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-22 14:30:20,122 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-22 14:30:20,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 02:30:06" (1/3) ... [2018-07-22 14:30:20,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1db597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:30:20, skipping insertion in model container [2018-07-22 14:30:20,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:08" (2/3) ... [2018-07-22 14:30:20,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1db597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:30:20, skipping insertion in model container [2018-07-22 14:30:20,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:30:20" (3/3) ... [2018-07-22 14:30:20,127 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label41_true-unreach-call.c [2018-07-22 14:30:20,137 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-22 14:30:20,148 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-22 14:30:20,206 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-22 14:30:20,207 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-22 14:30:20,207 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-22 14:30:20,207 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-22 14:30:20,207 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-22 14:30:20,207 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-22 14:30:20,207 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-22 14:30:20,207 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-22 14:30:20,208 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-22 14:30:20,251 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states. [2018-07-22 14:30:20,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-07-22 14:30:20,257 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:30:20,258 INFO L358 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, 1, 1] [2018-07-22 14:30:20,259 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:30:20,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1433927590, now seen corresponding path program 1 times [2018-07-22 14:30:20,264 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:30:20,265 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:30:20,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:30:20,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:30:20,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:30:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:30:20,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 14:30:20,697 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:30:20,697 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 14:30:20,700 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:30:20,715 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:30:20,716 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:30:20,719 INFO L87 Difference]: Start difference. First operand 591 states. Second operand 4 states. [2018-07-22 14:30:28,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:30:28,549 INFO L93 Difference]: Finished difference Result 2126 states and 3956 transitions. [2018-07-22 14:30:28,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:30:28,551 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2018-07-22 14:30:28,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:30:28,583 INFO L225 Difference]: With dead ends: 2126 [2018-07-22 14:30:28,584 INFO L226 Difference]: Without dead ends: 1528 [2018-07-22 14:30:28,591 INFO L578 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 [2018-07-22 14:30:28,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2018-07-22 14:30:28,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1048. [2018-07-22 14:30:28,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1048 states. [2018-07-22 14:30:28,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1826 transitions. [2018-07-22 14:30:28,714 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1826 transitions. Word has length 35 [2018-07-22 14:30:28,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:30:28,715 INFO L471 AbstractCegarLoop]: Abstraction has 1048 states and 1826 transitions. [2018-07-22 14:30:28,715 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:30:28,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1826 transitions. [2018-07-22 14:30:28,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-07-22 14:30:28,718 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:30:28,719 INFO L358 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, 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] [2018-07-22 14:30:28,719 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:30:28,719 INFO L82 PathProgramCache]: Analyzing trace with hash -950653749, now seen corresponding path program 1 times [2018-07-22 14:30:28,720 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:30:28,720 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:30:28,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:30:28,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:30:28,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:30:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:30:28,996 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 14:30:28,996 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:30:28,996 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 14:30:28,998 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:30:28,999 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:30:28,999 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:30:28,999 INFO L87 Difference]: Start difference. First operand 1048 states and 1826 transitions. Second operand 4 states. [2018-07-22 14:30:40,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:30:40,847 INFO L93 Difference]: Finished difference Result 3810 states and 6822 transitions. [2018-07-22 14:30:40,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:30:40,848 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 107 [2018-07-22 14:30:40,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:30:40,862 INFO L225 Difference]: With dead ends: 3810 [2018-07-22 14:30:40,862 INFO L226 Difference]: Without dead ends: 2764 [2018-07-22 14:30:40,865 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:30:40,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2018-07-22 14:30:40,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2764. [2018-07-22 14:30:40,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2764 states. [2018-07-22 14:30:40,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2764 states to 2764 states and 4043 transitions. [2018-07-22 14:30:40,953 INFO L78 Accepts]: Start accepts. Automaton has 2764 states and 4043 transitions. Word has length 107 [2018-07-22 14:30:40,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:30:40,954 INFO L471 AbstractCegarLoop]: Abstraction has 2764 states and 4043 transitions. [2018-07-22 14:30:40,954 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:30:40,954 INFO L276 IsEmpty]: Start isEmpty. Operand 2764 states and 4043 transitions. [2018-07-22 14:30:40,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-07-22 14:30:40,970 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:30:40,970 INFO L358 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:30:40,971 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:30:40,971 INFO L82 PathProgramCache]: Analyzing trace with hash 828676186, now seen corresponding path program 1 times [2018-07-22 14:30:40,971 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:30:40,971 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:30:40,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:30:40,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:30:40,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:30:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:30:41,287 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-22 14:30:41,287 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:30:41,288 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 14:30:41,290 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 14:30:41,290 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 14:30:41,290 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 14:30:41,290 INFO L87 Difference]: Start difference. First operand 2764 states and 4043 transitions. Second operand 3 states. [2018-07-22 14:30:46,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:30:46,936 INFO L93 Difference]: Finished difference Result 8080 states and 11868 transitions. [2018-07-22 14:30:46,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 14:30:46,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2018-07-22 14:30:46,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:30:46,960 INFO L225 Difference]: With dead ends: 8080 [2018-07-22 14:30:46,960 INFO L226 Difference]: Without dead ends: 5318 [2018-07-22 14:30:46,966 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 14:30:46,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5318 states. [2018-07-22 14:30:47,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5318 to 5318. [2018-07-22 14:30:47,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5318 states. [2018-07-22 14:30:47,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5318 states to 5318 states and 6872 transitions. [2018-07-22 14:30:47,166 INFO L78 Accepts]: Start accepts. Automaton has 5318 states and 6872 transitions. Word has length 191 [2018-07-22 14:30:47,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:30:47,167 INFO L471 AbstractCegarLoop]: Abstraction has 5318 states and 6872 transitions. [2018-07-22 14:30:47,167 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-22 14:30:47,167 INFO L276 IsEmpty]: Start isEmpty. Operand 5318 states and 6872 transitions. [2018-07-22 14:30:47,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-07-22 14:30:47,179 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:30:47,180 INFO L358 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:30:47,180 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:30:47,180 INFO L82 PathProgramCache]: Analyzing trace with hash 920189744, now seen corresponding path program 1 times [2018-07-22 14:30:47,180 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:30:47,180 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:30:47,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:30:47,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:30:47,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:30:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:30:47,581 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 14:30:47,581 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:30:47,581 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 14:30:47,582 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:30:47,582 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:30:47,582 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:30:47,583 INFO L87 Difference]: Start difference. First operand 5318 states and 6872 transitions. Second operand 4 states. [2018-07-22 14:30:51,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:30:51,817 INFO L93 Difference]: Finished difference Result 11486 states and 14992 transitions. [2018-07-22 14:30:51,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:30:51,818 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 198 [2018-07-22 14:30:51,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:30:51,846 INFO L225 Difference]: With dead ends: 11486 [2018-07-22 14:30:51,846 INFO L226 Difference]: Without dead ends: 6170 [2018-07-22 14:30:51,852 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:30:51,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6170 states. [2018-07-22 14:30:51,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6170 to 6170. [2018-07-22 14:30:51,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6170 states. [2018-07-22 14:30:51,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 7379 transitions. [2018-07-22 14:30:51,981 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 7379 transitions. Word has length 198 [2018-07-22 14:30:51,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:30:51,982 INFO L471 AbstractCegarLoop]: Abstraction has 6170 states and 7379 transitions. [2018-07-22 14:30:51,982 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:30:51,982 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 7379 transitions. [2018-07-22 14:30:51,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2018-07-22 14:30:51,987 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:30:51,988 INFO L358 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:30:51,988 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:30:51,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1919608372, now seen corresponding path program 1 times [2018-07-22 14:30:51,988 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:30:51,989 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:30:51,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:30:51,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:30:51,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:30:52,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:30:52,448 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-07-22 14:30:52,448 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:30:52,448 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 14:30:52,450 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:30:52,450 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:30:52,450 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:30:52,450 INFO L87 Difference]: Start difference. First operand 6170 states and 7379 transitions. Second operand 4 states. [2018-07-22 14:30:59,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:30:59,937 INFO L93 Difference]: Finished difference Result 15787 states and 19066 transitions. [2018-07-22 14:30:59,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:30:59,975 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 257 [2018-07-22 14:30:59,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:31:00,001 INFO L225 Difference]: With dead ends: 15787 [2018-07-22 14:31:00,002 INFO L226 Difference]: Without dead ends: 9619 [2018-07-22 14:31:00,007 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:31:00,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9619 states. [2018-07-22 14:31:00,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9619 to 8309. [2018-07-22 14:31:00,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8309 states. [2018-07-22 14:31:00,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8309 states to 8309 states and 9781 transitions. [2018-07-22 14:31:00,159 INFO L78 Accepts]: Start accepts. Automaton has 8309 states and 9781 transitions. Word has length 257 [2018-07-22 14:31:00,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:31:00,160 INFO L471 AbstractCegarLoop]: Abstraction has 8309 states and 9781 transitions. [2018-07-22 14:31:00,160 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:31:00,160 INFO L276 IsEmpty]: Start isEmpty. Operand 8309 states and 9781 transitions. [2018-07-22 14:31:00,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-07-22 14:31:00,166 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:31:00,166 INFO L358 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:31:00,166 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:31:00,167 INFO L82 PathProgramCache]: Analyzing trace with hash -2097900786, now seen corresponding path program 1 times [2018-07-22 14:31:00,167 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:31:00,167 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:31:00,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:31:00,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:31:00,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:31:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:31:00,837 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 206 proven. 71 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-07-22 14:31:00,838 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 14:31:00,838 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 14:31:00,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:31:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:31:00,980 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 14:31:01,284 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 206 proven. 71 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-07-22 14:31:01,314 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-22 14:31:01,314 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 4 [2018-07-22 14:31:01,315 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 14:31:01,315 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 14:31:01,315 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-22 14:31:01,315 INFO L87 Difference]: Start difference. First operand 8309 states and 9781 transitions. Second operand 5 states. [2018-07-22 14:31:08,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:31:08,629 INFO L93 Difference]: Finished difference Result 25598 states and 30810 transitions. [2018-07-22 14:31:08,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 14:31:08,630 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 262 [2018-07-22 14:31:08,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:31:08,664 INFO L225 Difference]: With dead ends: 25598 [2018-07-22 14:31:08,665 INFO L226 Difference]: Without dead ends: 15099 [2018-07-22 14:31:08,675 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 260 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-22 14:31:08,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15099 states. [2018-07-22 14:31:08,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15099 to 13389. [2018-07-22 14:31:08,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13389 states. [2018-07-22 14:31:08,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13389 states to 13389 states and 14998 transitions. [2018-07-22 14:31:08,948 INFO L78 Accepts]: Start accepts. Automaton has 13389 states and 14998 transitions. Word has length 262 [2018-07-22 14:31:08,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:31:08,949 INFO L471 AbstractCegarLoop]: Abstraction has 13389 states and 14998 transitions. [2018-07-22 14:31:08,949 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 14:31:08,950 INFO L276 IsEmpty]: Start isEmpty. Operand 13389 states and 14998 transitions. [2018-07-22 14:31:08,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2018-07-22 14:31:08,955 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:31:08,955 INFO L358 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, 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, 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] [2018-07-22 14:31:08,955 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:31:08,956 INFO L82 PathProgramCache]: Analyzing trace with hash -914177385, now seen corresponding path program 1 times [2018-07-22 14:31:08,956 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:31:08,956 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:31:08,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:31:08,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:31:08,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:31:09,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:31:09,479 WARN L169 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 3 [2018-07-22 14:31:09,527 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2018-07-22 14:31:09,528 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:31:09,528 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 14:31:09,528 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:31:09,529 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:31:09,529 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:31:09,530 INFO L87 Difference]: Start difference. First operand 13389 states and 14998 transitions. Second operand 4 states. [2018-07-22 14:31:18,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:31:18,506 INFO L93 Difference]: Finished difference Result 36602 states and 41054 transitions. [2018-07-22 14:31:18,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:31:18,520 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 298 [2018-07-22 14:31:18,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:31:18,552 INFO L225 Difference]: With dead ends: 36602 [2018-07-22 14:31:18,553 INFO L226 Difference]: Without dead ends: 22779 [2018-07-22 14:31:18,568 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:31:18,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22779 states. [2018-07-22 14:31:19,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22779 to 20638. [2018-07-22 14:31:19,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20638 states. [2018-07-22 14:31:19,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20638 states to 20638 states and 22705 transitions. [2018-07-22 14:31:19,081 INFO L78 Accepts]: Start accepts. Automaton has 20638 states and 22705 transitions. Word has length 298 [2018-07-22 14:31:19,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:31:19,081 INFO L471 AbstractCegarLoop]: Abstraction has 20638 states and 22705 transitions. [2018-07-22 14:31:19,082 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:31:19,082 INFO L276 IsEmpty]: Start isEmpty. Operand 20638 states and 22705 transitions. [2018-07-22 14:31:19,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2018-07-22 14:31:19,099 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:31:19,099 INFO L358 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:31:19,100 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:31:19,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1544866570, now seen corresponding path program 1 times [2018-07-22 14:31:19,100 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:31:19,100 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:31:19,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:31:19,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:31:19,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:31:19,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:31:19,915 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 498 proven. 83 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2018-07-22 14:31:19,915 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 14:31:19,915 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-07-22 14:31:19,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 14:31:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:31:20,092 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 14:31:20,373 WARN L169 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 11 [2018-07-22 14:31:20,794 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 730 trivial. 0 not checked. [2018-07-22 14:31:20,828 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 14:31:20,828 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-07-22 14:31:20,829 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-22 14:31:20,829 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-22 14:31:20,829 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-22 14:31:20,829 INFO L87 Difference]: Start difference. First operand 20638 states and 22705 transitions. Second operand 6 states. [2018-07-22 14:31:42,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:31:42,110 INFO L93 Difference]: Finished difference Result 77081 states and 84686 transitions. [2018-07-22 14:31:42,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-22 14:31:42,111 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 441 [2018-07-22 14:31:42,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:31:42,233 INFO L225 Difference]: With dead ends: 77081 [2018-07-22 14:31:42,233 INFO L226 Difference]: Without dead ends: 50030 [2018-07-22 14:31:42,260 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-22 14:31:42,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50030 states. [2018-07-22 14:31:42,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50030 to 34661. [2018-07-22 14:31:42,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34661 states. [2018-07-22 14:31:42,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34661 states to 34661 states and 37088 transitions. [2018-07-22 14:31:42,718 INFO L78 Accepts]: Start accepts. Automaton has 34661 states and 37088 transitions. Word has length 441 [2018-07-22 14:31:42,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:31:42,719 INFO L471 AbstractCegarLoop]: Abstraction has 34661 states and 37088 transitions. [2018-07-22 14:31:42,719 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-22 14:31:42,719 INFO L276 IsEmpty]: Start isEmpty. Operand 34661 states and 37088 transitions. [2018-07-22 14:31:42,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2018-07-22 14:31:42,747 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:31:42,747 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:31:42,747 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:31:42,748 INFO L82 PathProgramCache]: Analyzing trace with hash 502496031, now seen corresponding path program 1 times [2018-07-22 14:31:42,748 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:31:42,748 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:31:42,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:31:42,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:31:42,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:31:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:31:43,539 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 395 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2018-07-22 14:31:43,540 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:31:43,540 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-22 14:31:43,540 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 14:31:43,541 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 14:31:43,541 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 14:31:43,541 INFO L87 Difference]: Start difference. First operand 34661 states and 37088 transitions. Second operand 5 states. [2018-07-22 14:31:48,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:31:48,582 INFO L93 Difference]: Finished difference Result 85971 states and 92581 transitions. [2018-07-22 14:31:48,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 14:31:48,583 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 507 [2018-07-22 14:31:48,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:31:48,640 INFO L225 Difference]: With dead ends: 85971 [2018-07-22 14:31:48,641 INFO L226 Difference]: Without dead ends: 53873 [2018-07-22 14:31:48,668 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 14:31:48,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53873 states. [2018-07-22 14:31:49,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53873 to 40644. [2018-07-22 14:31:49,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40644 states. [2018-07-22 14:31:49,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40644 states to 40644 states and 43484 transitions. [2018-07-22 14:31:49,239 INFO L78 Accepts]: Start accepts. Automaton has 40644 states and 43484 transitions. Word has length 507 [2018-07-22 14:31:49,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:31:49,240 INFO L471 AbstractCegarLoop]: Abstraction has 40644 states and 43484 transitions. [2018-07-22 14:31:49,240 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 14:31:49,240 INFO L276 IsEmpty]: Start isEmpty. Operand 40644 states and 43484 transitions. [2018-07-22 14:31:49,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2018-07-22 14:31:49,270 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:31:49,271 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 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] [2018-07-22 14:31:49,271 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:31:49,271 INFO L82 PathProgramCache]: Analyzing trace with hash -442904605, now seen corresponding path program 1 times [2018-07-22 14:31:49,271 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:31:49,272 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:31:49,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:31:49,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:31:49,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:31:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:31:50,768 WARN L169 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 6 [2018-07-22 14:31:51,146 WARN L169 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 6 [2018-07-22 14:31:51,473 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 136 proven. 508 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 14:31:51,473 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 14:31:51,473 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 14:31:51,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:31:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:31:51,636 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 14:31:52,562 WARN L169 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 515 DAG size of output: 22 [2018-07-22 14:31:53,904 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 463 proven. 99 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-07-22 14:31:53,925 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-22 14:31:53,925 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 11 [2018-07-22 14:31:53,926 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-22 14:31:53,926 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-22 14:31:53,926 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-07-22 14:31:53,926 INFO L87 Difference]: Start difference. First operand 40644 states and 43484 transitions. Second operand 11 states. [2018-07-22 14:32:28,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:32:28,895 INFO L93 Difference]: Finished difference Result 174384 states and 187548 transitions. [2018-07-22 14:32:28,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-07-22 14:32:28,895 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 508 [2018-07-22 14:32:28,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:32:29,063 INFO L225 Difference]: With dead ends: 174384 [2018-07-22 14:32:29,064 INFO L226 Difference]: Without dead ends: 132038 [2018-07-22 14:32:29,097 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 527 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=269, Invalid=787, Unknown=0, NotChecked=0, Total=1056 [2018-07-22 14:32:29,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132038 states. [2018-07-22 14:32:30,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132038 to 87559. [2018-07-22 14:32:30,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87559 states. [2018-07-22 14:32:30,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87559 states to 87559 states and 92070 transitions. [2018-07-22 14:32:30,502 INFO L78 Accepts]: Start accepts. Automaton has 87559 states and 92070 transitions. Word has length 508 [2018-07-22 14:32:30,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:32:30,503 INFO L471 AbstractCegarLoop]: Abstraction has 87559 states and 92070 transitions. [2018-07-22 14:32:30,503 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-22 14:32:30,503 INFO L276 IsEmpty]: Start isEmpty. Operand 87559 states and 92070 transitions. [2018-07-22 14:32:30,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2018-07-22 14:32:30,519 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:32:30,519 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:32:30,519 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:32:30,519 INFO L82 PathProgramCache]: Analyzing trace with hash 799921472, now seen corresponding path program 1 times [2018-07-22 14:32:30,520 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:32:30,520 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:32:30,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:32:30,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:32:30,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:32:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:32:31,380 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 259 proven. 344 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-07-22 14:32:31,380 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 14:32:31,380 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 14:32:31,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:32:31,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:32:31,518 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 14:32:32,415 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 413 proven. 83 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-07-22 14:32:32,436 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-22 14:32:32,437 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 3] total 9 [2018-07-22 14:32:32,437 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-22 14:32:32,438 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-22 14:32:32,438 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-07-22 14:32:32,439 INFO L87 Difference]: Start difference. First operand 87559 states and 92070 transitions. Second operand 10 states. [2018-07-22 14:32:42,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:32:42,165 INFO L93 Difference]: Finished difference Result 185898 states and 195401 transitions. [2018-07-22 14:32:42,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-22 14:32:42,166 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 512 [2018-07-22 14:32:42,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:32:42,272 INFO L225 Difference]: With dead ends: 185898 [2018-07-22 14:32:42,272 INFO L226 Difference]: Without dead ends: 99193 [2018-07-22 14:32:42,321 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 511 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-07-22 14:32:42,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99193 states. [2018-07-22 14:32:43,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99193 to 90967. [2018-07-22 14:32:43,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90967 states. [2018-07-22 14:32:46,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90967 states to 90967 states and 95584 transitions. [2018-07-22 14:32:46,843 INFO L78 Accepts]: Start accepts. Automaton has 90967 states and 95584 transitions. Word has length 512 [2018-07-22 14:32:46,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:32:46,844 INFO L471 AbstractCegarLoop]: Abstraction has 90967 states and 95584 transitions. [2018-07-22 14:32:46,844 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-22 14:32:46,844 INFO L276 IsEmpty]: Start isEmpty. Operand 90967 states and 95584 transitions. [2018-07-22 14:32:46,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2018-07-22 14:32:46,857 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:32:46,857 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:32:46,857 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:32:46,858 INFO L82 PathProgramCache]: Analyzing trace with hash -2111467186, now seen corresponding path program 1 times [2018-07-22 14:32:46,858 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:32:46,858 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:32:46,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:32:46,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:32:46,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:32:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:32:47,474 WARN L169 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-07-22 14:32:47,775 WARN L169 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2018-07-22 14:32:48,312 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 433 proven. 83 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-07-22 14:32:48,312 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 14:32:48,312 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 14:32:48,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:32:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:32:48,443 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 14:32:49,471 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2018-07-22 14:32:49,492 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 14:32:49,493 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2018-07-22 14:32:49,494 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-22 14:32:49,494 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-22 14:32:49,494 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-07-22 14:32:49,494 INFO L87 Difference]: Start difference. First operand 90967 states and 95584 transitions. Second operand 11 states. [2018-07-22 14:32:51,779 WARN L169 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2018-07-22 14:32:52,034 WARN L169 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-07-22 14:32:53,730 WARN L169 SmtUtils]: Spent 957.00 ms on a formula simplification that was a NOOP. DAG size: 37 Received shutdown request... [2018-07-22 14:34:08,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-07-22 14:34:08,870 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-22 14:34:08,875 WARN L202 ceAbstractionStarter]: Timeout [2018-07-22 14:34:08,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 02:34:08 BoogieIcfgContainer [2018-07-22 14:34:08,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-22 14:34:08,876 INFO L168 Benchmark]: Toolchain (without parser) took 242413.64 ms. Allocated memory was 307.8 MB in the beginning and 2.4 GB in the end (delta: 2.1 GB). Free memory was 245.7 MB in the beginning and 1.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 977.4 MB. Max. memory is 5.3 GB. [2018-07-22 14:34:08,877 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 307.8 MB. Free memory is still 273.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-22 14:34:08,877 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1859.29 ms. Allocated memory was 307.8 MB in the beginning and 336.1 MB in the end (delta: 28.3 MB). Free memory was 244.7 MB in the beginning and 171.4 MB in the end (delta: 73.3 MB). Peak memory consumption was 101.6 MB. Max. memory is 5.3 GB. [2018-07-22 14:34:08,878 INFO L168 Benchmark]: Boogie Procedure Inliner took 471.70 ms. Allocated memory was 336.1 MB in the beginning and 401.6 MB in the end (delta: 65.5 MB). Free memory was 171.4 MB in the beginning and 271.5 MB in the end (delta: -100.1 MB). Peak memory consumption was 26.4 MB. Max. memory is 5.3 GB. [2018-07-22 14:34:08,879 INFO L168 Benchmark]: Boogie Preprocessor took 978.85 ms. Allocated memory was 401.6 MB in the beginning and 591.9 MB in the end (delta: 190.3 MB). Free memory was 271.5 MB in the beginning and 479.0 MB in the end (delta: -207.4 MB). Peak memory consumption was 37.9 MB. Max. memory is 5.3 GB. [2018-07-22 14:34:08,879 INFO L168 Benchmark]: RCFGBuilder took 10336.30 ms. Allocated memory was 591.9 MB in the beginning and 697.8 MB in the end (delta: 105.9 MB). Free memory was 479.0 MB in the beginning and 452.0 MB in the end (delta: 26.9 MB). Peak memory consumption was 199.4 MB. Max. memory is 5.3 GB. [2018-07-22 14:34:08,880 INFO L168 Benchmark]: TraceAbstraction took 228757.36 ms. Allocated memory was 697.8 MB in the beginning and 2.4 GB in the end (delta: 1.7 GB). Free memory was 447.1 MB in the beginning and 1.4 GB in the end (delta: -914.7 MB). Peak memory consumption was 788.8 MB. Max. memory is 5.3 GB. [2018-07-22 14:34:08,883 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 307.8 MB. Free memory is still 273.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 1859.29 ms. Allocated memory was 307.8 MB in the beginning and 336.1 MB in the end (delta: 28.3 MB). Free memory was 244.7 MB in the beginning and 171.4 MB in the end (delta: 73.3 MB). Peak memory consumption was 101.6 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 471.70 ms. Allocated memory was 336.1 MB in the beginning and 401.6 MB in the end (delta: 65.5 MB). Free memory was 171.4 MB in the beginning and 271.5 MB in the end (delta: -100.1 MB). Peak memory consumption was 26.4 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 978.85 ms. Allocated memory was 401.6 MB in the beginning and 591.9 MB in the end (delta: 190.3 MB). Free memory was 271.5 MB in the beginning and 479.0 MB in the end (delta: -207.4 MB). Peak memory consumption was 37.9 MB. Max. memory is 5.3 GB. * RCFGBuilder took 10336.30 ms. Allocated memory was 591.9 MB in the beginning and 697.8 MB in the end (delta: 105.9 MB). Free memory was 479.0 MB in the beginning and 452.0 MB in the end (delta: 26.9 MB). Peak memory consumption was 199.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 228757.36 ms. Allocated memory was 697.8 MB in the beginning and 2.4 GB in the end (delta: 1.7 GB). Free memory was 447.1 MB in the beginning and 1.4 GB in the end (delta: -914.7 MB). Peak memory consumption was 788.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 110). Cancelled while BasicCegarLoop was constructing difference of abstraction (90967states) and interpolant automaton (currently 19 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (23219 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 591 locations, 1 error locations. TIMEOUT Result, 228.6s OverallTime, 12 OverallIterations, 6 TraceHistogramMax, 204.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4734 SDtfs, 27558 SDslu, 3384 SDs, 0 SdLazy, 65548 SolverSat, 8947 SolverUnsat, 87 SolverUnknown, 0 SolverNotchecked, 186.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2385 GetRequests, 2288 SyntacticMatches, 9 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 8.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90967occurred in iteration=11, 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: 8.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 86944 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 11.7s InterpolantComputationTime, 6103 NumberOfCodeBlocks, 6103 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 6086 ConstructedInterpolants, 513 QuantifiedInterpolants, 16363230 SizeOfPredicates, 4 NumberOfNonLiveVariables, 2958 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 17 InterpolantComputations, 9 PerfectInterpolantSequences, 6372/7714 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem17_label41_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-22_14-34-08-896.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem17_label41_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-22_14-34-08-896.csv Completed graceful shutdown