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/Problem19_label31_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 01:14:18,391 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 01:14:18,393 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 01:14:18,405 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 01:14:18,406 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 01:14:18,407 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 01:14:18,408 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 01:14:18,410 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 01:14:18,411 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 01:14:18,412 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 01:14:18,413 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 01:14:18,413 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 01:14:18,414 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 01:14:18,415 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 01:14:18,416 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 01:14:18,417 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 01:14:18,418 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 01:14:18,420 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 01:14:18,422 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 01:14:18,423 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 01:14:18,424 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 01:14:18,426 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 01:14:18,428 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 01:14:18,428 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 01:14:18,428 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 01:14:18,429 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 01:14:18,430 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 01:14:18,431 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 01:14:18,432 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 01:14:18,433 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 01:14:18,433 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 01:14:18,434 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-24 01:14:18,436 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 01:14:18,451 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 01:14:18,452 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 01:14:18,452 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 01:14:18,453 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 01:14:18,455 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 01:14:18,455 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 01:14:18,455 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 01:14:18,455 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 01:14:18,455 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 01:14:18,456 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 01:14:18,456 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 01:14:18,456 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 01:14:18,456 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 01:14:18,456 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 01:14:18,457 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 01:14:18,457 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 01:14:18,457 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 01:14:18,457 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 01:14:18,457 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 01:14:18,457 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 01:14:18,458 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 01:14:18,458 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 01:14:18,458 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 01:14:18,460 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 01:14:18,460 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 01:14:18,460 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 01:14:18,460 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 01:14:18,461 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 01:14:18,513 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 01:14:18,526 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 01:14:18,530 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 01:14:18,531 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 01:14:18,532 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 01:14:18,532 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label31_false-unreach-call.c [2018-07-24 01:14:18,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0541b382/f96f749eb9bb45fa97b331e0d039c297/FLAG49644edec [2018-07-24 01:14:19,456 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 01:14:19,457 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label31_false-unreach-call.c [2018-07-24 01:14:19,512 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0541b382/f96f749eb9bb45fa97b331e0d039c297/FLAG49644edec [2018-07-24 01:14:19,528 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0541b382/f96f749eb9bb45fa97b331e0d039c297 [2018-07-24 01:14:19,540 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 01:14:19,542 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 01:14:19,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 01:14:19,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 01:14:19,551 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 01:14:19,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 01:14:19" (1/1) ... [2018-07-24 01:14:19,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13c0516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:14:19, skipping insertion in model container [2018-07-24 01:14:19,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 01:14:19" (1/1) ... [2018-07-24 01:14:20,083 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 01:14:21,933 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 01:14:21,959 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 01:14:23,555 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 01:14:24,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:14:24 WrapperNode [2018-07-24 01:14:24,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 01:14:24,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 01:14:24,091 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 01:14:24,091 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 01:14:24,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:14:24" (1/1) ... [2018-07-24 01:14:24,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:14:24" (1/1) ... [2018-07-24 01:14:24,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 01:14:24,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 01:14:24,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 01:14:24,931 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 01:14:26,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:14:24" (1/1) ... [2018-07-24 01:14:26,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:14:24" (1/1) ... [2018-07-24 01:14:26,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:14:24" (1/1) ... [2018-07-24 01:14:26,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:14:24" (1/1) ... [2018-07-24 01:14:27,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:14:24" (1/1) ... [2018-07-24 01:14:27,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:14:24" (1/1) ... [2018-07-24 01:14:27,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:14:24" (1/1) ... [2018-07-24 01:14:27,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 01:14:27,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 01:14:27,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 01:14:27,404 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 01:14:27,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:14:24" (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 01:14:27,469 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 01:14:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 01:14:27,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 01:14:48,390 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 01:14:48,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 01:14:48 BoogieIcfgContainer [2018-07-24 01:14:48,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 01:14:48,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 01:14:48,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 01:14:48,395 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 01:14:48,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 01:14:19" (1/3) ... [2018-07-24 01:14:48,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5cec33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 01:14:48, skipping insertion in model container [2018-07-24 01:14:48,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:14:24" (2/3) ... [2018-07-24 01:14:48,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5cec33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 01:14:48, skipping insertion in model container [2018-07-24 01:14:48,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 01:14:48" (3/3) ... [2018-07-24 01:14:48,399 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label31_false-unreach-call.c [2018-07-24 01:14:48,409 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 01:14:48,420 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 01:14:48,489 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 01:14:48,490 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 01:14:48,490 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 01:14:48,491 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 01:14:48,491 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 01:14:48,491 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 01:14:48,491 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 01:14:48,491 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 01:14:48,491 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 01:14:48,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-07-24 01:14:48,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-07-24 01:14:48,554 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:14:48,555 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:14:48,556 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:14:48,561 INFO L82 PathProgramCache]: Analyzing trace with hash -686802918, now seen corresponding path program 1 times [2018-07-24 01:14:48,563 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:14:48,563 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:14:48,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:14:48,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:14:48,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:14:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:14:49,025 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 01:14:49,028 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:14:49,028 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:14:49,033 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:14:49,050 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:14:49,051 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:14:49,054 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-07-24 01:15:13,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:15:13,419 INFO L93 Difference]: Finished difference Result 6414 states and 12249 transitions. [2018-07-24 01:15:13,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:15:13,422 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-07-24 01:15:13,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:15:13,481 INFO L225 Difference]: With dead ends: 6414 [2018-07-24 01:15:13,481 INFO L226 Difference]: Without dead ends: 4658 [2018-07-24 01:15:13,491 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:15:13,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4658 states. [2018-07-24 01:15:13,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4658 to 4584. [2018-07-24 01:15:13,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4584 states. [2018-07-24 01:15:13,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4584 states to 4584 states and 7858 transitions. [2018-07-24 01:15:13,725 INFO L78 Accepts]: Start accepts. Automaton has 4584 states and 7858 transitions. Word has length 19 [2018-07-24 01:15:13,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:15:13,726 INFO L471 AbstractCegarLoop]: Abstraction has 4584 states and 7858 transitions. [2018-07-24 01:15:13,726 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:15:13,726 INFO L276 IsEmpty]: Start isEmpty. Operand 4584 states and 7858 transitions. [2018-07-24 01:15:13,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-07-24 01:15:13,734 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:15:13,734 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 01:15:13,735 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:15:13,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1890754115, now seen corresponding path program 1 times [2018-07-24 01:15:13,735 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:15:13,737 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:15:13,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:15:13,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:15:13,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:15:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:15:14,106 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:15:14,106 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:15:14,107 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:15:14,108 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:15:14,109 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:15:14,109 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:15:14,109 INFO L87 Difference]: Start difference. First operand 4584 states and 7858 transitions. Second operand 4 states. [2018-07-24 01:15:37,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:15:37,136 INFO L93 Difference]: Finished difference Result 17656 states and 30544 transitions. [2018-07-24 01:15:37,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:15:37,138 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2018-07-24 01:15:37,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:15:37,205 INFO L225 Difference]: With dead ends: 17656 [2018-07-24 01:15:37,206 INFO L226 Difference]: Without dead ends: 13074 [2018-07-24 01:15:37,215 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 01:15:37,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13074 states. [2018-07-24 01:15:37,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13074 to 13062. [2018-07-24 01:15:37,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13062 states. [2018-07-24 01:15:37,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13062 states to 13062 states and 19136 transitions. [2018-07-24 01:15:37,498 INFO L78 Accepts]: Start accepts. Automaton has 13062 states and 19136 transitions. Word has length 117 [2018-07-24 01:15:37,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:15:37,498 INFO L471 AbstractCegarLoop]: Abstraction has 13062 states and 19136 transitions. [2018-07-24 01:15:37,498 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:15:37,499 INFO L276 IsEmpty]: Start isEmpty. Operand 13062 states and 19136 transitions. [2018-07-24 01:15:37,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-07-24 01:15:37,512 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:15:37,514 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 01:15:37,514 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:15:37,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1845462575, now seen corresponding path program 1 times [2018-07-24 01:15:37,515 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:15:37,515 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:15:37,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:15:37,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:15:37,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:15:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:15:37,877 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:15:37,878 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:15:37,878 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:15:37,878 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:15:37,879 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:15:37,879 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:15:37,879 INFO L87 Difference]: Start difference. First operand 13062 states and 19136 transitions. Second operand 4 states. [2018-07-24 01:16:01,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:16:01,991 INFO L93 Difference]: Finished difference Result 51011 states and 74956 transitions. [2018-07-24 01:16:01,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:16:02,000 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 125 [2018-07-24 01:16:02,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:16:02,119 INFO L225 Difference]: With dead ends: 51011 [2018-07-24 01:16:02,120 INFO L226 Difference]: Without dead ends: 37951 [2018-07-24 01:16:02,144 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 01:16:02,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37951 states. [2018-07-24 01:16:03,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37951 to 25353. [2018-07-24 01:16:03,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25353 states. [2018-07-24 01:16:03,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25353 states to 25353 states and 35535 transitions. [2018-07-24 01:16:03,138 INFO L78 Accepts]: Start accepts. Automaton has 25353 states and 35535 transitions. Word has length 125 [2018-07-24 01:16:03,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:16:03,139 INFO L471 AbstractCegarLoop]: Abstraction has 25353 states and 35535 transitions. [2018-07-24 01:16:03,139 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:16:03,139 INFO L276 IsEmpty]: Start isEmpty. Operand 25353 states and 35535 transitions. [2018-07-24 01:16:03,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2018-07-24 01:16:03,147 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:16:03,148 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 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 01:16:03,148 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:16:03,148 INFO L82 PathProgramCache]: Analyzing trace with hash -786523336, now seen corresponding path program 1 times [2018-07-24 01:16:03,149 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:16:03,149 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:16:03,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:16:03,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:16:03,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:16:03,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:16:03,723 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-07-24 01:16:03,724 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:16:03,724 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:16:03,725 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:16:03,726 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:16:03,726 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:16:03,726 INFO L87 Difference]: Start difference. First operand 25353 states and 35535 transitions. Second operand 4 states. [2018-07-24 01:16:24,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:16:24,278 INFO L93 Difference]: Finished difference Result 95786 states and 134344 transitions. [2018-07-24 01:16:24,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:16:24,279 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 319 [2018-07-24 01:16:24,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:16:24,379 INFO L225 Difference]: With dead ends: 95786 [2018-07-24 01:16:24,379 INFO L226 Difference]: Without dead ends: 70435 [2018-07-24 01:16:24,415 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:16:24,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70435 states. [2018-07-24 01:16:25,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70435 to 67697. [2018-07-24 01:16:25,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67697 states. [2018-07-24 01:16:25,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67697 states to 67697 states and 87385 transitions. [2018-07-24 01:16:25,379 INFO L78 Accepts]: Start accepts. Automaton has 67697 states and 87385 transitions. Word has length 319 [2018-07-24 01:16:25,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:16:25,380 INFO L471 AbstractCegarLoop]: Abstraction has 67697 states and 87385 transitions. [2018-07-24 01:16:25,380 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:16:25,380 INFO L276 IsEmpty]: Start isEmpty. Operand 67697 states and 87385 transitions. [2018-07-24 01:16:25,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2018-07-24 01:16:25,386 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:16:25,387 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:16:25,387 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:16:25,388 INFO L82 PathProgramCache]: Analyzing trace with hash 131030714, now seen corresponding path program 1 times [2018-07-24 01:16:25,388 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:16:25,388 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:16:25,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:16:25,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:16:25,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:16:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:16:25,847 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-07-24 01:16:25,847 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:16:25,848 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:16:25,848 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:16:25,849 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:16:25,849 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:16:25,849 INFO L87 Difference]: Start difference. First operand 67697 states and 87385 transitions. Second operand 4 states. [2018-07-24 01:16:51,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:16:51,747 INFO L93 Difference]: Finished difference Result 240752 states and 308153 transitions. [2018-07-24 01:16:51,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:16:51,748 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 391 [2018-07-24 01:16:51,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:16:51,954 INFO L225 Difference]: With dead ends: 240752 [2018-07-24 01:16:51,955 INFO L226 Difference]: Without dead ends: 173057 [2018-07-24 01:16:52,023 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 01:16:52,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173057 states. [2018-07-24 01:16:53,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173057 to 170255. [2018-07-24 01:16:53,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170255 states. [2018-07-24 01:16:55,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170255 states to 170255 states and 200828 transitions. [2018-07-24 01:16:55,033 INFO L78 Accepts]: Start accepts. Automaton has 170255 states and 200828 transitions. Word has length 391 [2018-07-24 01:16:55,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:16:55,033 INFO L471 AbstractCegarLoop]: Abstraction has 170255 states and 200828 transitions. [2018-07-24 01:16:55,033 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:16:55,034 INFO L276 IsEmpty]: Start isEmpty. Operand 170255 states and 200828 transitions. [2018-07-24 01:16:55,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 816 [2018-07-24 01:16:55,067 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:16:55,068 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:16:55,068 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:16:55,070 INFO L82 PathProgramCache]: Analyzing trace with hash 2107980103, now seen corresponding path program 1 times [2018-07-24 01:16:55,070 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:16:55,071 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:16:55,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:16:55,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:16:55,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:16:55,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:16:56,227 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-07-24 01:16:56,227 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:16:56,228 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 01:16:56,229 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:16:56,229 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:16:56,229 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:16:56,230 INFO L87 Difference]: Start difference. First operand 170255 states and 200828 transitions. Second operand 4 states. [2018-07-24 01:17:18,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:17:18,440 INFO L93 Difference]: Finished difference Result 404730 states and 479067 transitions. [2018-07-24 01:17:18,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:17:18,440 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 815 [2018-07-24 01:17:18,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:17:18,739 INFO L225 Difference]: With dead ends: 404730 [2018-07-24 01:17:18,739 INFO L226 Difference]: Without dead ends: 235843 [2018-07-24 01:17:18,859 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 01:17:19,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235843 states. [2018-07-24 01:17:21,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235843 to 220790. [2018-07-24 01:17:21,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220790 states. [2018-07-24 01:17:21,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220790 states to 220790 states and 250791 transitions. [2018-07-24 01:17:21,847 INFO L78 Accepts]: Start accepts. Automaton has 220790 states and 250791 transitions. Word has length 815 [2018-07-24 01:17:21,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:17:21,848 INFO L471 AbstractCegarLoop]: Abstraction has 220790 states and 250791 transitions. [2018-07-24 01:17:21,848 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:17:21,849 INFO L276 IsEmpty]: Start isEmpty. Operand 220790 states and 250791 transitions. [2018-07-24 01:17:21,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1294 [2018-07-24 01:17:21,981 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:17:21,982 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:17:21,983 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:17:21,983 INFO L82 PathProgramCache]: Analyzing trace with hash -69765661, now seen corresponding path program 1 times [2018-07-24 01:17:21,983 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:17:21,983 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:17:21,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:17:21,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:17:21,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:17:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:17:22,661 WARN L169 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-07-24 01:17:23,200 WARN L169 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 18 [2018-07-24 01:17:23,519 WARN L169 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 18 [2018-07-24 01:17:25,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1523 backedges. 660 proven. 0 refuted. 0 times theorem prover too weak. 863 trivial. 0 not checked. [2018-07-24 01:17:25,859 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:17:25,859 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 01:17:25,860 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 01:17:25,860 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 01:17:25,861 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-24 01:17:25,861 INFO L87 Difference]: Start difference. First operand 220790 states and 250791 transitions. Second operand 7 states. [2018-07-24 01:17:58,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:17:58,482 INFO L93 Difference]: Finished difference Result 482575 states and 545011 transitions. [2018-07-24 01:17:58,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 01:17:58,482 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1293 [2018-07-24 01:17:58,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:17:58,822 INFO L225 Difference]: With dead ends: 482575 [2018-07-24 01:17:58,822 INFO L226 Difference]: Without dead ends: 263153 [2018-07-24 01:17:58,932 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-07-24 01:17:59,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263153 states. [2018-07-24 01:18:02,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263153 to 259047. [2018-07-24 01:18:02,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259047 states. [2018-07-24 01:18:02,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259047 states to 259047 states and 290461 transitions. [2018-07-24 01:18:02,535 INFO L78 Accepts]: Start accepts. Automaton has 259047 states and 290461 transitions. Word has length 1293 [2018-07-24 01:18:02,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:18:02,536 INFO L471 AbstractCegarLoop]: Abstraction has 259047 states and 290461 transitions. [2018-07-24 01:18:02,536 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 01:18:02,536 INFO L276 IsEmpty]: Start isEmpty. Operand 259047 states and 290461 transitions. [2018-07-24 01:18:02,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1335 [2018-07-24 01:18:02,591 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:18:02,592 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:18:02,593 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:18:02,593 INFO L82 PathProgramCache]: Analyzing trace with hash -406909964, now seen corresponding path program 1 times [2018-07-24 01:18:02,593 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:18:02,593 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:18:02,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:18:02,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:18:02,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:18:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:18:11,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 769 proven. 4 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2018-07-24 01:18:11,646 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:18:11,646 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 01:18:11,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:18:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:18:12,156 INFO L273 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2018-07-24 01:18:13,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 773 proven. 0 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2018-07-24 01:18:13,054 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 01:18:13,054 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-07-24 01:18:13,057 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 01:18:13,057 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 01:18:13,057 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-24 01:18:13,058 INFO L87 Difference]: Start difference. First operand 259047 states and 290461 transitions. Second operand 5 states. [2018-07-24 01:18:13,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-24 01:18:13,059 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 01:18:13,065 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 01:18:13,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 01:18:13 BoogieIcfgContainer [2018-07-24 01:18:13,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 01:18:13,066 INFO L168 Benchmark]: Toolchain (without parser) took 233525.54 ms. Allocated memory was 1.5 GB in the beginning and 4.8 GB in the end (delta: 3.2 GB). Free memory was 1.4 GB in the beginning and 3.6 GB in the end (delta: -2.2 GB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-07-24 01:18:13,068 INFO L168 Benchmark]: CDTParser took 0.22 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 01:18:13,068 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4547.17 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 159.9 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -77.6 MB). Peak memory consumption was 473.9 MB. Max. memory is 7.1 GB. [2018-07-24 01:18:13,069 INFO L168 Benchmark]: Boogie Procedure Inliner took 838.74 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 188.8 MB). Peak memory consumption was 188.8 MB. Max. memory is 7.1 GB. [2018-07-24 01:18:13,070 INFO L168 Benchmark]: Boogie Preprocessor took 2473.39 ms. Allocated memory was 1.7 GB in the beginning and 2.8 GB in the end (delta: 1.1 GB). Free memory was 1.3 GB in the beginning and 2.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 201.0 MB. Max. memory is 7.1 GB. [2018-07-24 01:18:13,071 INFO L168 Benchmark]: RCFGBuilder took 20987.54 ms. Allocated memory was 2.8 GB in the beginning and 3.0 GB in the end (delta: 203.4 MB). Free memory was 2.5 GB in the beginning and 2.1 GB in the end (delta: 396.5 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-07-24 01:18:13,072 INFO L168 Benchmark]: TraceAbstraction took 204673.44 ms. Allocated memory was 3.0 GB in the beginning and 4.8 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 3.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 257.6 MB. Max. memory is 7.1 GB. [2018-07-24 01:18:13,078 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 4547.17 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 159.9 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -77.6 MB). Peak memory consumption was 473.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 838.74 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 188.8 MB). Peak memory consumption was 188.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 2473.39 ms. Allocated memory was 1.7 GB in the beginning and 2.8 GB in the end (delta: 1.1 GB). Free memory was 1.3 GB in the beginning and 2.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 201.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 20987.54 ms. Allocated memory was 2.8 GB in the beginning and 3.0 GB in the end (delta: 203.4 MB). Free memory was 2.5 GB in the beginning and 2.1 GB in the end (delta: 396.5 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 204673.44 ms. Allocated memory was 3.0 GB in the beginning and 4.8 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 3.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 257.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 70). Cancelled while BasicCegarLoop was constructing difference of abstraction (259047states) and interpolant automaton (currently 2 states, 5 states before enhancement), while ReachableStatesComputation was computing reachable states (1 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 204.5s OverallTime, 8 OverallIterations, 6 TraceHistogramMax, 174.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8458 SDtfs, 32643 SDslu, 2653 SDs, 0 SdLazy, 64924 SolverSat, 17290 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 147.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1372 GetRequests, 1341 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=259047occurred in iteration=7, 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: 12.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 37383 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 5747 NumberOfCodeBlocks, 5747 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 5738 ConstructedInterpolants, 0 QuantifiedInterpolants, 15965678 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1488 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 5117/5121 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/Problem19_label31_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_01-18-13-095.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label31_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_01-18-13-095.csv Completed graceful shutdown