java -Xmx8000000000 -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 csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label31_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 00:28:03,344 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 00:28:03,347 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 00:28:03,359 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 00:28:03,359 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 00:28:03,360 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 00:28:03,361 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 00:28:03,363 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 00:28:03,365 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 00:28:03,366 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 00:28:03,367 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 00:28:03,367 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 00:28:03,368 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 00:28:03,369 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 00:28:03,370 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 00:28:03,371 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 00:28:03,372 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 00:28:03,374 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 00:28:03,376 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 00:28:03,377 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 00:28:03,379 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 00:28:03,380 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 00:28:03,382 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 00:28:03,382 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 00:28:03,383 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 00:28:03,383 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 00:28:03,384 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 00:28:03,385 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 00:28:03,386 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 00:28:03,387 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 00:28:03,387 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 00:28:03,388 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-24 00:28:03,391 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-24 00:28:03,416 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 00:28:03,417 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 00:28:03,418 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 00:28:03,419 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 00:28:03,422 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 00:28:03,422 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 00:28:03,422 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 00:28:03,423 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 00:28:03,423 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 00:28:03,423 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 00:28:03,423 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 00:28:03,423 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 00:28:03,424 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 00:28:03,424 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 00:28:03,424 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 00:28:03,425 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 00:28:03,425 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 00:28:03,425 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 00:28:03,425 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 00:28:03,426 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 00:28:03,426 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 00:28:03,426 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 00:28:03,426 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 00:28:03,426 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 00:28:03,427 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 00:28:03,427 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 00:28:03,427 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 00:28:03,427 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 00:28:03,493 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 00:28:03,506 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 00:28:03,510 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 00:28:03,511 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 00:28:03,512 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 00:28:03,513 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label31_false-unreach-call.c [2018-07-24 00:28:03,857 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5659b4a6/e6d003f89c4945a2a9730a8f703c020c/FLAG80805df2e [2018-07-24 00:28:04,170 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 00:28:04,171 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label31_false-unreach-call.c [2018-07-24 00:28:04,189 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5659b4a6/e6d003f89c4945a2a9730a8f703c020c/FLAG80805df2e [2018-07-24 00:28:04,204 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5659b4a6/e6d003f89c4945a2a9730a8f703c020c [2018-07-24 00:28:04,215 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 00:28:04,217 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 00:28:04,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 00:28:04,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 00:28:04,225 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 00:28:04,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:28:04" (1/1) ... [2018-07-24 00:28:04,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38049efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:28:04, skipping insertion in model container [2018-07-24 00:28:04,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:28:04" (1/1) ... [2018-07-24 00:28:04,436 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 00:28:04,831 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 00:28:04,848 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 00:28:05,025 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 00:28:05,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:28:05 WrapperNode [2018-07-24 00:28:05,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 00:28:05,097 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 00:28:05,097 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 00:28:05,097 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 00:28:05,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:28:05" (1/1) ... [2018-07-24 00:28:05,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:28:05" (1/1) ... [2018-07-24 00:28:05,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 00:28:05,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 00:28:05,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 00:28:05,249 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 00:28:05,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:28:05" (1/1) ... [2018-07-24 00:28:05,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:28:05" (1/1) ... [2018-07-24 00:28:05,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:28:05" (1/1) ... [2018-07-24 00:28:05,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:28:05" (1/1) ... [2018-07-24 00:28:05,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:28:05" (1/1) ... [2018-07-24 00:28:05,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:28:05" (1/1) ... [2018-07-24 00:28:05,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:28:05" (1/1) ... [2018-07-24 00:28:05,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 00:28:05,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 00:28:05,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 00:28:05,675 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 00:28:05,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:28:05" (1/1) ... No working directory specified, using /storage/repos/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 [2018-07-24 00:28:05,752 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 00:28:05,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 00:28:05,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 00:28:10,242 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 00:28:10,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:28:10 BoogieIcfgContainer [2018-07-24 00:28:10,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 00:28:10,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 00:28:10,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 00:28:10,254 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 00:28:10,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 12:28:04" (1/3) ... [2018-07-24 00:28:10,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0d98c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:28:10, skipping insertion in model container [2018-07-24 00:28:10,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:28:05" (2/3) ... [2018-07-24 00:28:10,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0d98c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:28:10, skipping insertion in model container [2018-07-24 00:28:10,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:28:10" (3/3) ... [2018-07-24 00:28:10,258 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label31_false-unreach-call.c [2018-07-24 00:28:10,266 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 00:28:10,275 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 00:28:10,340 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 00:28:10,343 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 00:28:10,343 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 00:28:10,343 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 00:28:10,343 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 00:28:10,344 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 00:28:10,344 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 00:28:10,344 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 00:28:10,344 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 00:28:10,384 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2018-07-24 00:28:10,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-24 00:28:10,392 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:28:10,394 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:28:10,394 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:28:10,399 INFO L82 PathProgramCache]: Analyzing trace with hash 150940466, now seen corresponding path program 1 times [2018-07-24 00:28:10,400 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:28:10,401 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:28:10,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:28:10,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:28:10,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:28:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:28:10,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:28:10,663 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:28:10,663 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:28:10,668 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:28:10,684 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:28:10,685 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:28:10,687 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 4 states. [2018-07-24 00:28:14,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:28:14,280 INFO L93 Difference]: Finished difference Result 965 states and 1744 transitions. [2018-07-24 00:28:14,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:28:14,282 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-07-24 00:28:14,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:28:14,306 INFO L225 Difference]: With dead ends: 965 [2018-07-24 00:28:14,306 INFO L226 Difference]: Without dead ends: 674 [2018-07-24 00:28:14,311 INFO L573 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 [2018-07-24 00:28:14,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2018-07-24 00:28:14,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 659. [2018-07-24 00:28:14,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2018-07-24 00:28:14,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 1030 transitions. [2018-07-24 00:28:14,396 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 1030 transitions. Word has length 8 [2018-07-24 00:28:14,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:28:14,396 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 1030 transitions. [2018-07-24 00:28:14,397 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:28:14,397 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 1030 transitions. [2018-07-24 00:28:14,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-07-24 00:28:14,400 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:28:14,400 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 00:28:14,401 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:28:14,401 INFO L82 PathProgramCache]: Analyzing trace with hash 78237136, now seen corresponding path program 1 times [2018-07-24 00:28:14,401 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:28:14,401 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:28:14,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:28:14,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:28:14,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:28:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:28:14,706 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:28:14,706 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:28:14,707 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 00:28:14,709 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 00:28:14,710 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 00:28:14,710 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:28:14,710 INFO L87 Difference]: Start difference. First operand 659 states and 1030 transitions. Second operand 3 states. [2018-07-24 00:28:16,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:28:16,579 INFO L93 Difference]: Finished difference Result 1875 states and 2973 transitions. [2018-07-24 00:28:16,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 00:28:16,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2018-07-24 00:28:16,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:28:16,590 INFO L225 Difference]: With dead ends: 1875 [2018-07-24 00:28:16,590 INFO L226 Difference]: Without dead ends: 1218 [2018-07-24 00:28:16,598 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:28:16,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2018-07-24 00:28:16,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 1218. [2018-07-24 00:28:16,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1218 states. [2018-07-24 00:28:16,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1788 transitions. [2018-07-24 00:28:16,676 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1788 transitions. Word has length 75 [2018-07-24 00:28:16,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:28:16,676 INFO L471 AbstractCegarLoop]: Abstraction has 1218 states and 1788 transitions. [2018-07-24 00:28:16,676 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 00:28:16,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1788 transitions. [2018-07-24 00:28:16,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-07-24 00:28:16,680 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:28:16,680 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 00:28:16,680 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:28:16,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1873098807, now seen corresponding path program 1 times [2018-07-24 00:28:16,681 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:28:16,681 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:28:16,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:28:16,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:28:16,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:28:16,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:28:16,931 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:28:16,931 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:28:16,932 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:28:16,932 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:28:16,932 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:28:16,933 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:28:16,933 INFO L87 Difference]: Start difference. First operand 1218 states and 1788 transitions. Second operand 4 states. [2018-07-24 00:28:20,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:28:20,597 INFO L93 Difference]: Finished difference Result 4680 states and 6939 transitions. [2018-07-24 00:28:20,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:28:20,597 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 85 [2018-07-24 00:28:20,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:28:20,615 INFO L225 Difference]: With dead ends: 4680 [2018-07-24 00:28:20,615 INFO L226 Difference]: Without dead ends: 3464 [2018-07-24 00:28:20,618 INFO L573 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 [2018-07-24 00:28:20,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3464 states. [2018-07-24 00:28:20,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3464 to 2327. [2018-07-24 00:28:20,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2327 states. [2018-07-24 00:28:20,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3092 transitions. [2018-07-24 00:28:20,671 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3092 transitions. Word has length 85 [2018-07-24 00:28:20,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:28:20,672 INFO L471 AbstractCegarLoop]: Abstraction has 2327 states and 3092 transitions. [2018-07-24 00:28:20,672 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:28:20,672 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3092 transitions. [2018-07-24 00:28:20,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-07-24 00:28:20,674 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:28:20,674 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:28:20,675 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:28:20,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1434597809, now seen corresponding path program 1 times [2018-07-24 00:28:20,675 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:28:20,675 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:28:20,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:28:20,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:28:20,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:28:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:28:20,816 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:28:20,816 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:28:20,816 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:28:20,817 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 00:28:20,817 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 00:28:20,817 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:28:20,819 INFO L87 Difference]: Start difference. First operand 2327 states and 3092 transitions. Second operand 3 states. [2018-07-24 00:28:22,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:28:22,150 INFO L93 Difference]: Finished difference Result 5401 states and 7327 transitions. [2018-07-24 00:28:22,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 00:28:22,151 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2018-07-24 00:28:22,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:28:22,167 INFO L225 Difference]: With dead ends: 5401 [2018-07-24 00:28:22,167 INFO L226 Difference]: Without dead ends: 3076 [2018-07-24 00:28:22,171 INFO L573 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 [2018-07-24 00:28:22,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3076 states. [2018-07-24 00:28:22,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3076 to 3067. [2018-07-24 00:28:22,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3067 states. [2018-07-24 00:28:22,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3067 states to 3067 states and 4065 transitions. [2018-07-24 00:28:22,232 INFO L78 Accepts]: Start accepts. Automaton has 3067 states and 4065 transitions. Word has length 121 [2018-07-24 00:28:22,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:28:22,233 INFO L471 AbstractCegarLoop]: Abstraction has 3067 states and 4065 transitions. [2018-07-24 00:28:22,233 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 00:28:22,233 INFO L276 IsEmpty]: Start isEmpty. Operand 3067 states and 4065 transitions. [2018-07-24 00:28:22,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-07-24 00:28:22,238 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:28:22,239 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:28:22,239 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:28:22,239 INFO L82 PathProgramCache]: Analyzing trace with hash 887108873, now seen corresponding path program 1 times [2018-07-24 00:28:22,240 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:28:22,240 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:28:22,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:28:22,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:28:22,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:28:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:28:22,793 WARN L169 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2018-07-24 00:28:23,031 WARN L169 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 12 [2018-07-24 00:28:23,185 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 11 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:28:23,185 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:28:23,185 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2018-07-24 00:28:23,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:28:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:28:23,308 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:28:24,452 WARN L169 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 31 [2018-07-24 00:28:24,905 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 11 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:28:24,937 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 00:28:24,937 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2018-07-24 00:28:24,938 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 00:28:24,940 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 00:28:24,940 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-07-24 00:28:24,941 INFO L87 Difference]: Start difference. First operand 3067 states and 4065 transitions. Second operand 9 states. [2018-07-24 00:28:38,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:28:38,632 INFO L93 Difference]: Finished difference Result 15616 states and 19927 transitions. [2018-07-24 00:28:38,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-07-24 00:28:38,632 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 192 [2018-07-24 00:28:38,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:28:38,686 INFO L225 Difference]: With dead ends: 15616 [2018-07-24 00:28:38,686 INFO L226 Difference]: Without dead ends: 12551 [2018-07-24 00:28:38,692 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=151, Invalid=355, Unknown=0, NotChecked=0, Total=506 [2018-07-24 00:28:38,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12551 states. [2018-07-24 00:28:38,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12551 to 12359. [2018-07-24 00:28:38,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12359 states. [2018-07-24 00:28:38,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12359 states to 12359 states and 14617 transitions. [2018-07-24 00:28:38,932 INFO L78 Accepts]: Start accepts. Automaton has 12359 states and 14617 transitions. Word has length 192 [2018-07-24 00:28:38,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:28:38,933 INFO L471 AbstractCegarLoop]: Abstraction has 12359 states and 14617 transitions. [2018-07-24 00:28:38,933 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 00:28:38,933 INFO L276 IsEmpty]: Start isEmpty. Operand 12359 states and 14617 transitions. [2018-07-24 00:28:38,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-07-24 00:28:38,937 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:28:38,938 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:28:38,938 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:28:38,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1124216912, now seen corresponding path program 1 times [2018-07-24 00:28:38,938 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:28:38,938 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:28:38,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:28:38,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:28:38,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:28:38,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:28:39,129 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-07-24 00:28:39,129 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:28:39,129 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:28:39,130 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 00:28:39,130 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 00:28:39,130 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:28:39,131 INFO L87 Difference]: Start difference. First operand 12359 states and 14617 transitions. Second operand 3 states. [2018-07-24 00:28:40,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:28:40,941 INFO L93 Difference]: Finished difference Result 26208 states and 31133 transitions. [2018-07-24 00:28:40,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 00:28:40,942 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2018-07-24 00:28:40,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:28:40,991 INFO L225 Difference]: With dead ends: 26208 [2018-07-24 00:28:40,992 INFO L226 Difference]: Without dead ends: 14036 [2018-07-24 00:28:41,009 INFO L573 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 [2018-07-24 00:28:41,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14036 states. [2018-07-24 00:28:41,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14036 to 13851. [2018-07-24 00:28:41,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13851 states. [2018-07-24 00:28:41,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13851 states to 13851 states and 16210 transitions. [2018-07-24 00:28:41,236 INFO L78 Accepts]: Start accepts. Automaton has 13851 states and 16210 transitions. Word has length 202 [2018-07-24 00:28:41,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:28:41,237 INFO L471 AbstractCegarLoop]: Abstraction has 13851 states and 16210 transitions. [2018-07-24 00:28:41,237 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 00:28:41,237 INFO L276 IsEmpty]: Start isEmpty. Operand 13851 states and 16210 transitions. [2018-07-24 00:28:41,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-07-24 00:28:41,241 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:28:41,242 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:28:41,242 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:28:41,242 INFO L82 PathProgramCache]: Analyzing trace with hash -433997519, now seen corresponding path program 1 times [2018-07-24 00:28:41,242 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:28:41,242 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:28:41,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:28:41,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:28:41,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:28:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:28:41,789 WARN L169 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-07-24 00:28:42,154 WARN L169 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 9 [2018-07-24 00:28:42,198 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:28:42,198 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:28:42,199 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 00:28:42,199 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 00:28:42,199 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 00:28:42,200 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 00:28:42,200 INFO L87 Difference]: Start difference. First operand 13851 states and 16210 transitions. Second operand 5 states. [2018-07-24 00:28:45,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:28:45,603 INFO L93 Difference]: Finished difference Result 28837 states and 34173 transitions. [2018-07-24 00:28:45,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 00:28:45,608 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 207 [2018-07-24 00:28:45,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:28:45,638 INFO L225 Difference]: With dead ends: 28837 [2018-07-24 00:28:45,638 INFO L226 Difference]: Without dead ends: 15173 [2018-07-24 00:28:45,654 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 00:28:45,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15173 states. [2018-07-24 00:28:45,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15173 to 14786. [2018-07-24 00:28:45,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14786 states. [2018-07-24 00:28:45,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14786 states to 14786 states and 17218 transitions. [2018-07-24 00:28:45,856 INFO L78 Accepts]: Start accepts. Automaton has 14786 states and 17218 transitions. Word has length 207 [2018-07-24 00:28:45,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:28:45,856 INFO L471 AbstractCegarLoop]: Abstraction has 14786 states and 17218 transitions. [2018-07-24 00:28:45,856 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 00:28:45,857 INFO L276 IsEmpty]: Start isEmpty. Operand 14786 states and 17218 transitions. [2018-07-24 00:28:45,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-07-24 00:28:45,860 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:28:45,860 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:28:45,861 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:28:45,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1999411343, now seen corresponding path program 1 times [2018-07-24 00:28:45,861 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:28:45,861 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:28:45,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:28:45,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:28:45,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:28:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:28:46,384 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 77 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:28:46,384 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:28:46,384 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 00:28:46,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:28:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:28:46,474 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:28:46,650 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:28:46,681 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 00:28:46,682 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-07-24 00:28:46,683 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 00:28:46,683 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 00:28:46,683 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-07-24 00:28:46,684 INFO L87 Difference]: Start difference. First operand 14786 states and 17218 transitions. Second operand 7 states. [2018-07-24 00:28:54,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:28:54,066 INFO L93 Difference]: Finished difference Result 34583 states and 40423 transitions. [2018-07-24 00:28:54,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-24 00:28:54,066 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 223 [2018-07-24 00:28:54,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:28:54,096 INFO L225 Difference]: With dead ends: 34583 [2018-07-24 00:28:54,096 INFO L226 Difference]: Without dead ends: 18678 [2018-07-24 00:28:54,116 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2018-07-24 00:28:54,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18678 states. [2018-07-24 00:28:54,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18678 to 11803. [2018-07-24 00:28:54,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11803 states. [2018-07-24 00:28:54,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11803 states to 11803 states and 13610 transitions. [2018-07-24 00:28:54,299 INFO L78 Accepts]: Start accepts. Automaton has 11803 states and 13610 transitions. Word has length 223 [2018-07-24 00:28:54,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:28:54,300 INFO L471 AbstractCegarLoop]: Abstraction has 11803 states and 13610 transitions. [2018-07-24 00:28:54,300 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 00:28:54,300 INFO L276 IsEmpty]: Start isEmpty. Operand 11803 states and 13610 transitions. [2018-07-24 00:28:54,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-07-24 00:28:54,306 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:28:54,306 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:28:54,306 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:28:54,307 INFO L82 PathProgramCache]: Analyzing trace with hash 2034800281, now seen corresponding path program 1 times [2018-07-24 00:28:54,307 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:28:54,307 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:28:54,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:28:54,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:28:54,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:28:54,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:28:54,856 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 76 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:28:54,856 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:28:54,856 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2018-07-24 00:28:54,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:28:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:28:54,953 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:28:55,291 WARN L169 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 15 [2018-07-24 00:28:55,602 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 11 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:28:55,623 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 00:28:55,623 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2018-07-24 00:28:55,624 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-24 00:28:55,624 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-24 00:28:55,624 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-07-24 00:28:55,624 INFO L87 Difference]: Start difference. First operand 11803 states and 13610 transitions. Second operand 10 states. [2018-07-24 00:29:06,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:29:06,852 INFO L93 Difference]: Finished difference Result 30942 states and 35590 transitions. [2018-07-24 00:29:06,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-07-24 00:29:06,853 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 247 [2018-07-24 00:29:06,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:29:06,880 INFO L225 Difference]: With dead ends: 30942 [2018-07-24 00:29:06,880 INFO L226 Difference]: Without dead ends: 19141 [2018-07-24 00:29:06,897 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=212, Invalid=544, Unknown=0, NotChecked=0, Total=756 [2018-07-24 00:29:06,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19141 states. [2018-07-24 00:29:07,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19141 to 15961. [2018-07-24 00:29:07,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15961 states. [2018-07-24 00:29:07,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15961 states to 15961 states and 18277 transitions. [2018-07-24 00:29:07,135 INFO L78 Accepts]: Start accepts. Automaton has 15961 states and 18277 transitions. Word has length 247 [2018-07-24 00:29:07,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:29:07,136 INFO L471 AbstractCegarLoop]: Abstraction has 15961 states and 18277 transitions. [2018-07-24 00:29:07,136 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-24 00:29:07,136 INFO L276 IsEmpty]: Start isEmpty. Operand 15961 states and 18277 transitions. [2018-07-24 00:29:07,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2018-07-24 00:29:07,143 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:29:07,144 INFO L353 BasicCegarLoop]: trace histogram [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, 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] [2018-07-24 00:29:07,144 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:29:07,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1359647880, now seen corresponding path program 1 times [2018-07-24 00:29:07,144 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:29:07,144 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:29:07,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:29:07,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:29:07,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:29:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:29:07,479 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-07-24 00:29:07,479 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:29:07,479 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:29:07,480 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:29:07,480 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:29:07,480 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:29:07,480 INFO L87 Difference]: Start difference. First operand 15961 states and 18277 transitions. Second operand 4 states. [2018-07-24 00:29:09,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:29:09,686 INFO L93 Difference]: Finished difference Result 31841 states and 36467 transitions. [2018-07-24 00:29:09,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:29:09,687 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 273 [2018-07-24 00:29:09,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:29:09,703 INFO L225 Difference]: With dead ends: 31841 [2018-07-24 00:29:09,703 INFO L226 Difference]: Without dead ends: 15882 [2018-07-24 00:29:09,711 INFO L573 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 [2018-07-24 00:29:09,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15882 states. [2018-07-24 00:29:09,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15882 to 14196. [2018-07-24 00:29:09,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14196 states. [2018-07-24 00:29:09,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14196 states to 14196 states and 15893 transitions. [2018-07-24 00:29:09,882 INFO L78 Accepts]: Start accepts. Automaton has 14196 states and 15893 transitions. Word has length 273 [2018-07-24 00:29:09,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:29:09,883 INFO L471 AbstractCegarLoop]: Abstraction has 14196 states and 15893 transitions. [2018-07-24 00:29:09,883 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:29:09,883 INFO L276 IsEmpty]: Start isEmpty. Operand 14196 states and 15893 transitions. [2018-07-24 00:29:09,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2018-07-24 00:29:09,893 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:29:09,894 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:29:09,894 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:29:09,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1926828977, now seen corresponding path program 1 times [2018-07-24 00:29:09,894 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:29:09,894 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:29:09,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:29:09,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:29:09,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:29:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:29:10,293 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2018-07-24 00:29:10,294 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:29:10,294 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2018-07-24 00:29:10,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:29:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:29:10,424 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:29:10,610 WARN L169 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-07-24 00:29:11,247 WARN L169 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 30 [2018-07-24 00:29:11,835 WARN L169 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 19 [2018-07-24 00:29:12,340 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 95 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:29:12,360 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 00:29:12,361 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 6 [2018-07-24 00:29:12,361 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 00:29:12,361 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 00:29:12,361 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-07-24 00:29:12,362 INFO L87 Difference]: Start difference. First operand 14196 states and 15893 transitions. Second operand 7 states. [2018-07-24 00:29:19,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:29:19,448 INFO L93 Difference]: Finished difference Result 42028 states and 46783 transitions. [2018-07-24 00:29:19,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-24 00:29:19,455 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 292 [2018-07-24 00:29:19,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:29:19,484 INFO L225 Difference]: With dead ends: 42028 [2018-07-24 00:29:19,484 INFO L226 Difference]: Without dead ends: 27834 [2018-07-24 00:29:19,495 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 288 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2018-07-24 00:29:19,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27834 states. [2018-07-24 00:29:19,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27834 to 23563. [2018-07-24 00:29:19,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23563 states. [2018-07-24 00:29:19,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23563 states to 23563 states and 26031 transitions. [2018-07-24 00:29:19,812 INFO L78 Accepts]: Start accepts. Automaton has 23563 states and 26031 transitions. Word has length 292 [2018-07-24 00:29:19,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:29:19,812 INFO L471 AbstractCegarLoop]: Abstraction has 23563 states and 26031 transitions. [2018-07-24 00:29:19,812 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 00:29:19,813 INFO L276 IsEmpty]: Start isEmpty. Operand 23563 states and 26031 transitions. [2018-07-24 00:29:19,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-07-24 00:29:19,824 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:29:19,824 INFO L353 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 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] [2018-07-24 00:29:19,825 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:29:19,825 INFO L82 PathProgramCache]: Analyzing trace with hash -322464146, now seen corresponding path program 1 times [2018-07-24 00:29:19,825 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:29:19,825 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:29:19,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:29:19,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:29:19,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:29:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:29:20,226 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 17 proven. 141 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2018-07-24 00:29:20,227 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:29:20,227 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2018-07-24 00:29:20,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:29:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:29:20,347 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:29:20,705 WARN L169 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 483 DAG size of output: 28 [2018-07-24 00:29:21,126 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 17 proven. 141 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2018-07-24 00:29:21,159 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 00:29:21,159 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-07-24 00:29:21,160 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 00:29:21,160 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 00:29:21,160 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-07-24 00:29:21,160 INFO L87 Difference]: Start difference. First operand 23563 states and 26031 transitions. Second operand 7 states. [2018-07-24 00:29:25,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:29:25,476 INFO L93 Difference]: Finished difference Result 51323 states and 56862 transitions. [2018-07-24 00:29:25,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 00:29:25,476 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 300 [2018-07-24 00:29:25,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:29:25,498 INFO L225 Difference]: With dead ends: 51323 [2018-07-24 00:29:25,498 INFO L226 Difference]: Without dead ends: 24442 [2018-07-24 00:29:25,510 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-07-24 00:29:25,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24442 states. [2018-07-24 00:29:25,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24442 to 22029. [2018-07-24 00:29:25,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22029 states. [2018-07-24 00:29:25,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22029 states to 22029 states and 24187 transitions. [2018-07-24 00:29:25,735 INFO L78 Accepts]: Start accepts. Automaton has 22029 states and 24187 transitions. Word has length 300 [2018-07-24 00:29:25,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:29:25,735 INFO L471 AbstractCegarLoop]: Abstraction has 22029 states and 24187 transitions. [2018-07-24 00:29:25,735 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 00:29:25,736 INFO L276 IsEmpty]: Start isEmpty. Operand 22029 states and 24187 transitions. [2018-07-24 00:29:25,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2018-07-24 00:29:25,745 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:29:25,746 INFO L353 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:29:25,746 INFO L414 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:29:25,746 INFO L82 PathProgramCache]: Analyzing trace with hash -788140, now seen corresponding path program 1 times [2018-07-24 00:29:25,746 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:29:25,747 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:29:25,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:29:25,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:29:25,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:29:25,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:29:26,029 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-07-24 00:29:26,029 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:29:26,029 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:29:26,030 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 00:29:26,030 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 00:29:26,030 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 00:29:26,030 INFO L87 Difference]: Start difference. First operand 22029 states and 24187 transitions. Second operand 5 states. [2018-07-24 00:29:28,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:29:28,821 INFO L93 Difference]: Finished difference Result 53517 states and 59041 transitions. [2018-07-24 00:29:28,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 00:29:28,822 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 306 [2018-07-24 00:29:28,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:29:28,850 INFO L225 Difference]: With dead ends: 53517 [2018-07-24 00:29:28,850 INFO L226 Difference]: Without dead ends: 31675 [2018-07-24 00:29:28,866 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 00:29:28,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31675 states. [2018-07-24 00:29:29,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31675 to 25765. [2018-07-24 00:29:29,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25765 states. [2018-07-24 00:29:29,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25765 states to 25765 states and 27781 transitions. [2018-07-24 00:29:29,135 INFO L78 Accepts]: Start accepts. Automaton has 25765 states and 27781 transitions. Word has length 306 [2018-07-24 00:29:29,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:29:29,135 INFO L471 AbstractCegarLoop]: Abstraction has 25765 states and 27781 transitions. [2018-07-24 00:29:29,135 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 00:29:29,135 INFO L276 IsEmpty]: Start isEmpty. Operand 25765 states and 27781 transitions. [2018-07-24 00:29:29,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2018-07-24 00:29:29,142 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:29:29,143 INFO L353 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 00:29:29,143 INFO L414 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:29:29,143 INFO L82 PathProgramCache]: Analyzing trace with hash 331991605, now seen corresponding path program 1 times [2018-07-24 00:29:29,143 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:29:29,143 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:29:29,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:29:29,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:29:29,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:29:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:29:30,290 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 87 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:29:30,290 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:29:30,290 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 00:29:30,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:29:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:29:30,420 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:29:30,957 WARN L169 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-07-24 00:29:31,534 WARN L169 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 22 [2018-07-24 00:29:31,974 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 116 proven. 167 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:29:32,007 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 00:29:32,007 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 12 [2018-07-24 00:29:32,011 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-24 00:29:32,011 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-24 00:29:32,012 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-07-24 00:29:32,012 INFO L87 Difference]: Start difference. First operand 25765 states and 27781 transitions. Second operand 13 states. [2018-07-24 00:29:39,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:29:39,117 INFO L93 Difference]: Finished difference Result 55827 states and 60071 transitions. [2018-07-24 00:29:39,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-24 00:29:39,118 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 342 [2018-07-24 00:29:39,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:29:39,145 INFO L225 Difference]: With dead ends: 55827 [2018-07-24 00:29:39,145 INFO L226 Difference]: Without dead ends: 30246 [2018-07-24 00:29:39,160 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 338 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=145, Invalid=361, Unknown=0, NotChecked=0, Total=506 [2018-07-24 00:29:39,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30246 states. [2018-07-24 00:29:39,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30246 to 23071. [2018-07-24 00:29:39,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23071 states. [2018-07-24 00:29:39,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23071 states to 23071 states and 24694 transitions. [2018-07-24 00:29:39,446 INFO L78 Accepts]: Start accepts. Automaton has 23071 states and 24694 transitions. Word has length 342 [2018-07-24 00:29:39,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:29:39,447 INFO L471 AbstractCegarLoop]: Abstraction has 23071 states and 24694 transitions. [2018-07-24 00:29:39,447 INFO L472 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-24 00:29:39,447 INFO L276 IsEmpty]: Start isEmpty. Operand 23071 states and 24694 transitions. [2018-07-24 00:29:39,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2018-07-24 00:29:39,457 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:29:39,458 INFO L353 BasicCegarLoop]: trace histogram [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, 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] [2018-07-24 00:29:39,458 INFO L414 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:29:39,458 INFO L82 PathProgramCache]: Analyzing trace with hash -2023605052, now seen corresponding path program 1 times [2018-07-24 00:29:39,459 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:29:39,459 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:29:39,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:29:39,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:29:39,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:29:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:29:39,919 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2018-07-24 00:29:39,920 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:29:39,920 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 00:29:39,921 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 00:29:39,921 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 00:29:39,921 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 00:29:39,921 INFO L87 Difference]: Start difference. First operand 23071 states and 24694 transitions. Second operand 5 states. [2018-07-24 00:29:42,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:29:42,563 INFO L93 Difference]: Finished difference Result 53254 states and 57016 transitions. [2018-07-24 00:29:42,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 00:29:42,564 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 351 [2018-07-24 00:29:42,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:29:42,584 INFO L225 Difference]: With dead ends: 53254 [2018-07-24 00:29:42,584 INFO L226 Difference]: Without dead ends: 22004 [2018-07-24 00:29:42,598 INFO L573 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 [2018-07-24 00:29:42,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22004 states. [2018-07-24 00:29:42,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22004 to 16781. [2018-07-24 00:29:42,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16781 states. [2018-07-24 00:29:42,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16781 states to 16781 states and 17754 transitions. [2018-07-24 00:29:42,777 INFO L78 Accepts]: Start accepts. Automaton has 16781 states and 17754 transitions. Word has length 351 [2018-07-24 00:29:42,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:29:42,778 INFO L471 AbstractCegarLoop]: Abstraction has 16781 states and 17754 transitions. [2018-07-24 00:29:42,778 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 00:29:42,778 INFO L276 IsEmpty]: Start isEmpty. Operand 16781 states and 17754 transitions. [2018-07-24 00:29:42,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2018-07-24 00:29:42,786 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:29:42,786 INFO L353 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:29:42,786 INFO L414 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:29:42,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1483352725, now seen corresponding path program 1 times [2018-07-24 00:29:42,786 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:29:42,787 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:29:42,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:29:42,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:29:42,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:29:42,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:29:43,426 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 88 proven. 213 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:29:43,426 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:29:43,426 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 00:29:43,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:29:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:29:43,570 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:29:45,983 WARN L169 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 43 DAG size of output: 19 [2018-07-24 00:29:46,311 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-07-24 00:29:47,316 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 88 proven. 213 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:29:47,349 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 00:29:47,349 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2018-07-24 00:29:47,350 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 00:29:47,351 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 00:29:47,351 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=49, Unknown=1, NotChecked=0, Total=72 [2018-07-24 00:29:47,351 INFO L87 Difference]: Start difference. First operand 16781 states and 17754 transitions. Second operand 9 states. [2018-07-24 00:29:48,118 WARN L169 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 20 Received shutdown request... [2018-07-24 00:32:19,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-24 00:32:19,630 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 00:32:19,635 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 00:32:19,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 12:32:19 BoogieIcfgContainer [2018-07-24 00:32:19,636 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 00:32:19,636 INFO L168 Benchmark]: Toolchain (without parser) took 255420.49 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 736.4 MB. Max. memory is 7.1 GB. [2018-07-24 00:32:19,637 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-07-24 00:32:19,638 INFO L168 Benchmark]: CACSL2BoogieTranslator took 878.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-07-24 00:32:19,639 INFO L168 Benchmark]: Boogie Procedure Inliner took 151.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-24 00:32:19,639 INFO L168 Benchmark]: Boogie Preprocessor took 425.36 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 810.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -932.1 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. [2018-07-24 00:32:19,640 INFO L168 Benchmark]: RCFGBuilder took 4568.52 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 193.9 MB). Peak memory consumption was 193.9 MB. Max. memory is 7.1 GB. [2018-07-24 00:32:19,641 INFO L168 Benchmark]: TraceAbstraction took 249391.64 ms. Allocated memory was 2.3 GB in the beginning and 3.5 GB in the end (delta: 1.1 GB). Free memory was 2.1 GB in the beginning and 2.6 GB in the end (delta: -560.8 MB). Peak memory consumption was 569.0 MB. Max. memory is 7.1 GB. [2018-07-24 00:32:19,645 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 878.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 151.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 425.36 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 810.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -932.1 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4568.52 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 193.9 MB). Peak memory consumption was 193.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 249391.64 ms. Allocated memory was 2.3 GB in the beginning and 3.5 GB in the end (delta: 1.1 GB). Free memory was 2.1 GB in the beginning and 2.6 GB in the end (delta: -560.8 MB). Peak memory consumption was 569.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 27]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 27). Cancelled while BasicCegarLoop was constructing difference of abstraction (16781states) and interpolant automaton (currently 13 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (20067 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 284 locations, 1 error locations. TIMEOUT Result, 249.3s OverallTime, 16 OverallIterations, 4 TraceHistogramMax, 227.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4074 SDtfs, 18310 SDslu, 3403 SDs, 0 SdLazy, 40460 SolverSat, 5758 SolverUnsat, 190 SolverUnknown, 0 SolverNotchecked, 208.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2104 GetRequests, 1976 SyntacticMatches, 4 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 15.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25765occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.7s AutomataMinimizationTime, 15 MinimizatonAttempts, 38658 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 16.1s InterpolantComputationTime, 5592 NumberOfCodeBlocks, 5592 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 5569 ConstructedInterpolants, 587 QuantifiedInterpolants, 13748425 SizeOfPredicates, 13 NumberOfNonLiveVariables, 2738 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 23 InterpolantComputations, 10 PerfectInterpolantSequences, 2121/3477 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/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem11_label31_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_00-32-19-659.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem11_label31_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_00-32-19-659.csv Completed graceful shutdown