java -Xss4m -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label21_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-22 02:25:09,492 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-22 02:25:09,495 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-22 02:25:09,506 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-22 02:25:09,506 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-22 02:25:09,507 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-22 02:25:09,509 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-22 02:25:09,510 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-22 02:25:09,512 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-22 02:25:09,513 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-22 02:25:09,513 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-22 02:25:09,514 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-22 02:25:09,515 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-22 02:25:09,518 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-22 02:25:09,519 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-22 02:25:09,520 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-22 02:25:09,521 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-22 02:25:09,522 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-22 02:25:09,533 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-22 02:25:09,535 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-22 02:25:09,536 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-22 02:25:09,537 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-22 02:25:09,539 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-22 02:25:09,548 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-22 02:25:09,563 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-22 02:25:09,563 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-22 02:25:09,564 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-22 02:25:09,564 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-22 02:25:09,565 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-22 02:25:09,565 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-22 02:25:09,565 INFO L133 SettingsManager]: * Use SBE=true [2018-07-22 02:25:09,565 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-22 02:25:09,565 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-22 02:25:09,566 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-22 02:25:09,566 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-22 02:25:09,566 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-22 02:25:09,566 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-22 02:25:09,566 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-22 02:25:09,567 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-22 02:25:09,567 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-22 02:25:09,567 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-22 02:25:09,567 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-22 02:25:09,567 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-22 02:25:09,568 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-22 02:25:09,568 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-22 02:25:09,568 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-22 02:25:09,568 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-22 02:25:09,568 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-22 02:25:09,569 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-22 02:25:09,569 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-22 02:25:09,569 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-22 02:25:09,569 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-22 02:25:09,569 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-22 02:25:09,618 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-22 02:25:09,635 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-22 02:25:09,640 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-22 02:25:09,645 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-22 02:25:09,645 INFO L276 PluginConnector]: CDTParser initialized [2018-07-22 02:25:09,646 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label21_false-unreach-call.c [2018-07-22 02:25:09,999 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/03d2209a8/5d4888497c3c4f698c0601dc6a12a483/FLAG90cf1ad4e [2018-07-22 02:25:10,546 INFO L276 CDTParser]: Found 1 translation units. [2018-07-22 02:25:10,547 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label21_false-unreach-call.c [2018-07-22 02:25:10,605 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/03d2209a8/5d4888497c3c4f698c0601dc6a12a483/FLAG90cf1ad4e [2018-07-22 02:25:10,625 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/03d2209a8/5d4888497c3c4f698c0601dc6a12a483 [2018-07-22 02:25:10,638 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-22 02:25:10,646 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-22 02:25:10,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-22 02:25:10,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-22 02:25:10,657 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-22 02:25:10,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:25:10" (1/1) ... [2018-07-22 02:25:10,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e40129b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:25:10, skipping insertion in model container [2018-07-22 02:25:10,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:25:10" (1/1) ... [2018-07-22 02:25:11,044 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-22 02:25:12,279 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 02:25:12,305 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-22 02:25:13,086 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 02:25:13,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:25:13 WrapperNode [2018-07-22 02:25:13,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-22 02:25:13,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-22 02:25:13,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-22 02:25:13,391 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-22 02:25:13,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:25:13" (1/1) ... [2018-07-22 02:25:13,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:25:13" (1/1) ... [2018-07-22 02:25:13,804 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-22 02:25:13,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-22 02:25:13,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-22 02:25:13,805 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-22 02:25:13,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:25:13" (1/1) ... [2018-07-22 02:25:13,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:25:13" (1/1) ... [2018-07-22 02:25:13,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:25:13" (1/1) ... [2018-07-22 02:25:13,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:25:13" (1/1) ... [2018-07-22 02:25:14,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:25:13" (1/1) ... [2018-07-22 02:25:15,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:25:13" (1/1) ... [2018-07-22 02:25:15,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:25:13" (1/1) ... [2018-07-22 02:25:15,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-22 02:25:15,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-22 02:25:15,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-22 02:25:15,177 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-22 02:25:15,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:25:13" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-22 02:25:15,246 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-22 02:25:15,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-22 02:25:15,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-22 02:25:24,809 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-22 02:25:24,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:25:24 BoogieIcfgContainer [2018-07-22 02:25:24,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-22 02:25:24,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-22 02:25:24,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-22 02:25:24,815 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-22 02:25:24,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 02:25:10" (1/3) ... [2018-07-22 02:25:24,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@883518b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:25:24, skipping insertion in model container [2018-07-22 02:25:24,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:25:13" (2/3) ... [2018-07-22 02:25:24,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@883518b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:25:24, skipping insertion in model container [2018-07-22 02:25:24,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:25:24" (3/3) ... [2018-07-22 02:25:24,820 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label21_false-unreach-call.c [2018-07-22 02:25:24,830 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-22 02:25:24,839 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-22 02:25:24,906 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-22 02:25:24,907 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-22 02:25:24,907 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-22 02:25:24,907 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-22 02:25:24,907 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-22 02:25:24,907 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-22 02:25:24,907 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-22 02:25:24,907 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-22 02:25:24,908 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-22 02:25:24,946 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states. [2018-07-22 02:25:24,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-07-22 02:25:24,954 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 02:25:24,955 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 02:25:24,956 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 02:25:24,961 INFO L82 PathProgramCache]: Analyzing trace with hash -314381782, now seen corresponding path program 1 times [2018-07-22 02:25:24,964 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 02:25:24,964 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 02:25:25,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:25:25,021 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 02:25:25,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:25:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 02:25:25,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 02:25:25,409 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 02:25:25,410 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 02:25:25,413 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 02:25:25,428 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 02:25:25,428 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 02:25:25,431 INFO L87 Difference]: Start difference. First operand 819 states. Second operand 4 states. [2018-07-22 02:25:36,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 02:25:36,311 INFO L93 Difference]: Finished difference Result 3146 states and 6134 transitions. [2018-07-22 02:25:36,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 02:25:36,313 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-07-22 02:25:36,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 02:25:36,351 INFO L225 Difference]: With dead ends: 3146 [2018-07-22 02:25:36,352 INFO L226 Difference]: Without dead ends: 2320 [2018-07-22 02:25:36,361 INFO L578 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 [2018-07-22 02:25:36,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2018-07-22 02:25:36,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 2320. [2018-07-22 02:25:36,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2320 states. [2018-07-22 02:25:36,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 3858 transitions. [2018-07-22 02:25:36,530 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 3858 transitions. Word has length 23 [2018-07-22 02:25:36,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 02:25:36,531 INFO L471 AbstractCegarLoop]: Abstraction has 2320 states and 3858 transitions. [2018-07-22 02:25:36,531 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 02:25:36,531 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 3858 transitions. [2018-07-22 02:25:36,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-07-22 02:25:36,535 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 02:25:36,535 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-22 02:25:36,535 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 02:25:36,536 INFO L82 PathProgramCache]: Analyzing trace with hash -595425670, now seen corresponding path program 1 times [2018-07-22 02:25:36,536 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 02:25:36,536 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 02:25:36,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:25:36,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 02:25:36,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:25:36,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 02:25:36,853 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 02:25:36,854 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 02:25:36,854 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 02:25:36,857 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 02:25:36,857 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 02:25:36,857 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 02:25:36,857 INFO L87 Difference]: Start difference. First operand 2320 states and 3858 transitions. Second operand 4 states. [2018-07-22 02:25:45,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 02:25:45,848 INFO L93 Difference]: Finished difference Result 9150 states and 15304 transitions. [2018-07-22 02:25:45,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 02:25:45,849 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 95 [2018-07-22 02:25:45,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 02:25:45,884 INFO L225 Difference]: With dead ends: 9150 [2018-07-22 02:25:45,884 INFO L226 Difference]: Without dead ends: 6832 [2018-07-22 02:25:45,889 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 02:25:45,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6832 states. [2018-07-22 02:25:46,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6832 to 6832. [2018-07-22 02:25:46,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6832 states. [2018-07-22 02:25:46,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6832 states to 6832 states and 10089 transitions. [2018-07-22 02:25:46,060 INFO L78 Accepts]: Start accepts. Automaton has 6832 states and 10089 transitions. Word has length 95 [2018-07-22 02:25:46,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 02:25:46,062 INFO L471 AbstractCegarLoop]: Abstraction has 6832 states and 10089 transitions. [2018-07-22 02:25:46,062 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 02:25:46,062 INFO L276 IsEmpty]: Start isEmpty. Operand 6832 states and 10089 transitions. [2018-07-22 02:25:46,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-07-22 02:25:46,076 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 02:25:46,077 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-22 02:25:46,077 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 02:25:46,077 INFO L82 PathProgramCache]: Analyzing trace with hash 437410408, now seen corresponding path program 1 times [2018-07-22 02:25:46,077 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 02:25:46,078 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 02:25:46,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:25:46,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 02:25:46,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:25:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 02:25:46,525 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 02:25:46,526 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 02:25:46,527 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 02:25:46,527 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 02:25:46,527 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 02:25:46,527 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 02:25:46,528 INFO L87 Difference]: Start difference. First operand 6832 states and 10089 transitions. Second operand 4 states. [2018-07-22 02:25:53,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 02:25:53,350 INFO L93 Difference]: Finished difference Result 27260 states and 40289 transitions. [2018-07-22 02:25:53,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 02:25:53,351 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 139 [2018-07-22 02:25:53,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 02:25:53,431 INFO L225 Difference]: With dead ends: 27260 [2018-07-22 02:25:53,432 INFO L226 Difference]: Without dead ends: 20430 [2018-07-22 02:25:53,444 INFO L578 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 [2018-07-22 02:25:53,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20430 states. [2018-07-22 02:25:53,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20430 to 13600. [2018-07-22 02:25:53,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13600 states. [2018-07-22 02:25:53,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13600 states to 13600 states and 18633 transitions. [2018-07-22 02:25:53,984 INFO L78 Accepts]: Start accepts. Automaton has 13600 states and 18633 transitions. Word has length 139 [2018-07-22 02:25:53,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 02:25:53,985 INFO L471 AbstractCegarLoop]: Abstraction has 13600 states and 18633 transitions. [2018-07-22 02:25:53,985 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 02:25:53,985 INFO L276 IsEmpty]: Start isEmpty. Operand 13600 states and 18633 transitions. [2018-07-22 02:25:53,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-07-22 02:25:53,994 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 02:25:53,994 INFO L358 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 02:25:53,994 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 02:25:53,994 INFO L82 PathProgramCache]: Analyzing trace with hash 547035013, now seen corresponding path program 1 times [2018-07-22 02:25:53,995 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 02:25:53,995 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 02:25:53,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:25:53,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 02:25:53,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:25:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 02:25:54,546 WARN L169 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2018-07-22 02:25:54,875 WARN L169 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 9 [2018-07-22 02:25:55,203 WARN L169 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 19 [2018-07-22 02:25:55,305 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 105 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 02:25:55,305 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 02:25:55,306 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 02:25:55,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 02:25:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 02:25:55,449 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 02:25:55,644 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 02:25:55,669 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 02:25:55,670 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2018-07-22 02:25:55,670 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-22 02:25:55,671 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-22 02:25:55,671 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-22 02:25:55,671 INFO L87 Difference]: Start difference. First operand 13600 states and 18633 transitions. Second operand 6 states. [2018-07-22 02:26:08,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 02:26:08,605 INFO L93 Difference]: Finished difference Result 49035 states and 64434 transitions. [2018-07-22 02:26:08,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-22 02:26:08,608 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2018-07-22 02:26:08,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 02:26:08,670 INFO L225 Difference]: With dead ends: 49035 [2018-07-22 02:26:08,671 INFO L226 Difference]: Without dead ends: 33178 [2018-07-22 02:26:08,684 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 166 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-07-22 02:26:08,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33178 states. [2018-07-22 02:26:09,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33178 to 20367. [2018-07-22 02:26:09,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20367 states. [2018-07-22 02:26:09,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20367 states to 20367 states and 24895 transitions. [2018-07-22 02:26:09,186 INFO L78 Accepts]: Start accepts. Automaton has 20367 states and 24895 transitions. Word has length 165 [2018-07-22 02:26:09,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 02:26:09,186 INFO L471 AbstractCegarLoop]: Abstraction has 20367 states and 24895 transitions. [2018-07-22 02:26:09,186 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-22 02:26:09,187 INFO L276 IsEmpty]: Start isEmpty. Operand 20367 states and 24895 transitions. [2018-07-22 02:26:09,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2018-07-22 02:26:09,190 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 02:26:09,194 INFO L358 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 02:26:09,194 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 02:26:09,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1351408159, now seen corresponding path program 1 times [2018-07-22 02:26:09,195 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 02:26:09,195 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 02:26:09,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:26:09,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 02:26:09,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:26:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 02:26:09,699 WARN L169 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-07-22 02:26:10,346 WARN L169 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 22 [2018-07-22 02:26:11,159 WARN L169 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 23 [2018-07-22 02:26:11,534 WARN L169 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 8 [2018-07-22 02:26:11,639 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-07-22 02:26:11,639 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 02:26:11,639 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-22 02:26:11,640 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-22 02:26:11,640 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-22 02:26:11,640 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-22 02:26:11,640 INFO L87 Difference]: Start difference. First operand 20367 states and 24895 transitions. Second operand 6 states. [2018-07-22 02:26:17,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 02:26:17,902 INFO L93 Difference]: Finished difference Result 52765 states and 65245 transitions. [2018-07-22 02:26:17,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 02:26:17,902 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 238 [2018-07-22 02:26:17,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 02:26:17,960 INFO L225 Difference]: With dead ends: 52765 [2018-07-22 02:26:17,961 INFO L226 Difference]: Without dead ends: 30895 [2018-07-22 02:26:17,981 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-07-22 02:26:17,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30895 states. [2018-07-22 02:26:18,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30895 to 30895. [2018-07-22 02:26:18,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30895 states. [2018-07-22 02:26:18,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30895 states to 30895 states and 36921 transitions. [2018-07-22 02:26:18,369 INFO L78 Accepts]: Start accepts. Automaton has 30895 states and 36921 transitions. Word has length 238 [2018-07-22 02:26:18,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 02:26:18,369 INFO L471 AbstractCegarLoop]: Abstraction has 30895 states and 36921 transitions. [2018-07-22 02:26:18,369 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-22 02:26:18,370 INFO L276 IsEmpty]: Start isEmpty. Operand 30895 states and 36921 transitions. [2018-07-22 02:26:18,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2018-07-22 02:26:18,377 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 02:26:18,377 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-22 02:26:18,377 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 02:26:18,377 INFO L82 PathProgramCache]: Analyzing trace with hash -84927897, now seen corresponding path program 1 times [2018-07-22 02:26:18,378 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 02:26:18,378 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 02:26:18,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:26:18,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 02:26:18,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:26:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 02:26:18,828 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-07-22 02:26:18,828 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 02:26:18,828 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 02:26:18,829 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 02:26:18,829 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 02:26:18,829 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 02:26:18,830 INFO L87 Difference]: Start difference. First operand 30895 states and 36921 transitions. Second operand 4 states. [2018-07-22 02:26:25,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 02:26:25,499 INFO L93 Difference]: Finished difference Result 112924 states and 135602 transitions. [2018-07-22 02:26:25,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 02:26:25,500 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 321 [2018-07-22 02:26:25,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 02:26:25,644 INFO L225 Difference]: With dead ends: 112924 [2018-07-22 02:26:25,644 INFO L226 Difference]: Without dead ends: 82783 [2018-07-22 02:26:25,676 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 02:26:25,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82783 states. [2018-07-22 02:26:26,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82783 to 82031. [2018-07-22 02:26:26,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82031 states. [2018-07-22 02:26:26,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82031 states to 82031 states and 96091 transitions. [2018-07-22 02:26:26,524 INFO L78 Accepts]: Start accepts. Automaton has 82031 states and 96091 transitions. Word has length 321 [2018-07-22 02:26:26,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 02:26:26,525 INFO L471 AbstractCegarLoop]: Abstraction has 82031 states and 96091 transitions. [2018-07-22 02:26:26,525 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 02:26:26,525 INFO L276 IsEmpty]: Start isEmpty. Operand 82031 states and 96091 transitions. [2018-07-22 02:26:26,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2018-07-22 02:26:26,534 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 02:26:26,534 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-22 02:26:26,534 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 02:26:26,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1849148943, now seen corresponding path program 1 times [2018-07-22 02:26:26,535 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 02:26:26,535 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 02:26:26,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:26:26,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 02:26:26,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:26:26,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 02:26:26,836 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-07-22 02:26:26,837 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 02:26:26,837 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 02:26:26,837 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 02:26:26,838 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 02:26:27,027 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 02:26:27,063 INFO L87 Difference]: Start difference. First operand 82031 states and 96091 transitions. Second operand 3 states. [2018-07-22 02:26:31,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 02:26:31,396 INFO L93 Difference]: Finished difference Result 180604 states and 211475 transitions. [2018-07-22 02:26:31,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 02:26:31,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 325 [2018-07-22 02:26:31,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 02:26:31,513 INFO L225 Difference]: With dead ends: 180604 [2018-07-22 02:26:31,514 INFO L226 Difference]: Without dead ends: 99327 [2018-07-22 02:26:31,926 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 02:26:31,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99327 states. [2018-07-22 02:26:32,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99327 to 97071. [2018-07-22 02:26:32,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97071 states. [2018-07-22 02:26:32,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97071 states to 97071 states and 110173 transitions. [2018-07-22 02:26:32,715 INFO L78 Accepts]: Start accepts. Automaton has 97071 states and 110173 transitions. Word has length 325 [2018-07-22 02:26:32,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 02:26:32,716 INFO L471 AbstractCegarLoop]: Abstraction has 97071 states and 110173 transitions. [2018-07-22 02:26:32,716 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-22 02:26:32,716 INFO L276 IsEmpty]: Start isEmpty. Operand 97071 states and 110173 transitions. [2018-07-22 02:26:32,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2018-07-22 02:26:32,726 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 02:26:32,726 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-22 02:26:32,726 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 02:26:32,727 INFO L82 PathProgramCache]: Analyzing trace with hash -2033308095, now seen corresponding path program 1 times [2018-07-22 02:26:32,727 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 02:26:32,727 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 02:26:32,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:26:32,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 02:26:32,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:26:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 02:26:33,304 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-07-22 02:26:33,304 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 02:26:33,304 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 02:26:33,305 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 02:26:33,305 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 02:26:33,305 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 02:26:33,306 INFO L87 Difference]: Start difference. First operand 97071 states and 110173 transitions. Second operand 5 states. [2018-07-22 02:26:43,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 02:26:43,710 INFO L93 Difference]: Finished difference Result 274642 states and 311377 transitions. [2018-07-22 02:26:43,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 02:26:43,711 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 357 [2018-07-22 02:26:43,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 02:26:43,932 INFO L225 Difference]: With dead ends: 274642 [2018-07-22 02:26:43,932 INFO L226 Difference]: Without dead ends: 178325 [2018-07-22 02:26:44,001 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 02:26:44,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178325 states. [2018-07-22 02:26:48,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178325 to 145989. [2018-07-22 02:26:48,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145989 states. [2018-07-22 02:26:49,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145989 states to 145989 states and 159635 transitions. [2018-07-22 02:26:49,023 INFO L78 Accepts]: Start accepts. Automaton has 145989 states and 159635 transitions. Word has length 357 [2018-07-22 02:26:49,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 02:26:49,024 INFO L471 AbstractCegarLoop]: Abstraction has 145989 states and 159635 transitions. [2018-07-22 02:26:49,024 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 02:26:49,024 INFO L276 IsEmpty]: Start isEmpty. Operand 145989 states and 159635 transitions. [2018-07-22 02:26:49,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2018-07-22 02:26:49,134 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 02:26:49,134 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 02:26:49,135 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 02:26:49,135 INFO L82 PathProgramCache]: Analyzing trace with hash -38771310, now seen corresponding path program 1 times [2018-07-22 02:26:49,135 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 02:26:49,135 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 02:26:49,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:26:49,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 02:26:49,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:26:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 02:26:50,458 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-07-22 02:26:50,459 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 02:26:50,459 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 02:26:50,459 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 02:26:50,460 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 02:26:50,460 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 02:26:50,460 INFO L87 Difference]: Start difference. First operand 145989 states and 159635 transitions. Second operand 4 states. [2018-07-22 02:26:58,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 02:26:58,086 INFO L93 Difference]: Finished difference Result 288211 states and 314890 transitions. [2018-07-22 02:26:58,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 02:26:58,087 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 708 [2018-07-22 02:26:58,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 02:26:58,212 INFO L225 Difference]: With dead ends: 288211 [2018-07-22 02:26:58,213 INFO L226 Difference]: Without dead ends: 128663 [2018-07-22 02:26:58,271 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 02:26:58,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128663 states. [2018-07-22 02:26:59,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128663 to 115879. [2018-07-22 02:26:59,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115879 states. [2018-07-22 02:27:00,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115879 states to 115879 states and 123840 transitions. [2018-07-22 02:27:00,062 INFO L78 Accepts]: Start accepts. Automaton has 115879 states and 123840 transitions. Word has length 708 [2018-07-22 02:27:00,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 02:27:00,063 INFO L471 AbstractCegarLoop]: Abstraction has 115879 states and 123840 transitions. [2018-07-22 02:27:00,063 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 02:27:00,063 INFO L276 IsEmpty]: Start isEmpty. Operand 115879 states and 123840 transitions. [2018-07-22 02:27:00,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 738 [2018-07-22 02:27:00,099 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 02:27:00,099 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 02:27:00,100 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 02:27:00,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1320394148, now seen corresponding path program 1 times [2018-07-22 02:27:00,100 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 02:27:00,100 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 02:27:00,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:27:00,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 02:27:00,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:27:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 02:27:00,768 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 621 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2018-07-22 02:27:00,768 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 02:27:00,768 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 02:27:00,769 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 02:27:00,769 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 02:27:00,769 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 02:27:00,770 INFO L87 Difference]: Start difference. First operand 115879 states and 123840 transitions. Second operand 4 states. [2018-07-22 02:27:06,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 02:27:06,840 INFO L93 Difference]: Finished difference Result 252060 states and 270155 transitions. [2018-07-22 02:27:06,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 02:27:06,842 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 737 [2018-07-22 02:27:06,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 02:27:06,976 INFO L225 Difference]: With dead ends: 252060 [2018-07-22 02:27:06,976 INFO L226 Difference]: Without dead ends: 136935 [2018-07-22 02:27:07,026 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 02:27:07,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136935 states. [2018-07-22 02:27:08,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136935 to 131671. [2018-07-22 02:27:08,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131671 states. [2018-07-22 02:27:08,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131671 states to 131671 states and 139289 transitions. [2018-07-22 02:27:08,945 INFO L78 Accepts]: Start accepts. Automaton has 131671 states and 139289 transitions. Word has length 737 [2018-07-22 02:27:08,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 02:27:08,946 INFO L471 AbstractCegarLoop]: Abstraction has 131671 states and 139289 transitions. [2018-07-22 02:27:08,946 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 02:27:08,946 INFO L276 IsEmpty]: Start isEmpty. Operand 131671 states and 139289 transitions. [2018-07-22 02:27:09,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 813 [2018-07-22 02:27:09,000 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 02:27:09,001 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2018-07-22 02:27:09,001 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 02:27:09,001 INFO L82 PathProgramCache]: Analyzing trace with hash 304312078, now seen corresponding path program 1 times [2018-07-22 02:27:09,001 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 02:27:09,001 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 02:27:09,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:27:09,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 02:27:09,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:27:12,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 02:27:12,828 WARN L169 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-07-22 02:27:13,184 WARN L169 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 11 [2018-07-22 02:27:13,612 WARN L169 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 13 [2018-07-22 02:27:14,311 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 778 proven. 5 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-07-22 02:27:14,311 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 02:27:14,311 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 02:27:14,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 02:27:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 02:27:14,531 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 02:27:15,594 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 609 proven. 174 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-07-22 02:27:15,615 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-22 02:27:15,615 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4] total 9 [2018-07-22 02:27:15,616 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-22 02:27:15,616 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-22 02:27:15,616 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-07-22 02:27:15,617 INFO L87 Difference]: Start difference. First operand 131671 states and 139289 transitions. Second operand 9 states. [2018-07-22 02:27:30,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 02:27:30,372 INFO L93 Difference]: Finished difference Result 307712 states and 326552 transitions. [2018-07-22 02:27:30,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-22 02:27:30,373 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 812 [2018-07-22 02:27:30,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 02:27:30,539 INFO L225 Difference]: With dead ends: 307712 [2018-07-22 02:27:30,540 INFO L226 Difference]: Without dead ends: 170767 [2018-07-22 02:27:30,588 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 819 GetRequests, 811 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-07-22 02:27:30,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170767 states. [2018-07-22 02:27:32,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170767 to 156477. [2018-07-22 02:27:32,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156477 states. [2018-07-22 02:27:32,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156477 states to 156477 states and 163544 transitions. [2018-07-22 02:27:32,416 INFO L78 Accepts]: Start accepts. Automaton has 156477 states and 163544 transitions. Word has length 812 [2018-07-22 02:27:32,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 02:27:32,416 INFO L471 AbstractCegarLoop]: Abstraction has 156477 states and 163544 transitions. [2018-07-22 02:27:32,416 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-22 02:27:32,416 INFO L276 IsEmpty]: Start isEmpty. Operand 156477 states and 163544 transitions. [2018-07-22 02:27:32,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 860 [2018-07-22 02:27:32,462 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 02:27:32,463 INFO L358 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 02:27:32,463 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 02:27:32,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1058216553, now seen corresponding path program 1 times [2018-07-22 02:27:32,464 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 02:27:32,464 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 02:27:32,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:27:32,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 02:27:32,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:27:32,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 02:27:33,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 844 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2018-07-22 02:27:33,645 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 02:27:33,645 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 02:27:33,646 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 02:27:33,646 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 02:27:33,646 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 02:27:33,646 INFO L87 Difference]: Start difference. First operand 156477 states and 163544 transitions. Second operand 4 states. [2018-07-22 02:27:38,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 02:27:38,709 INFO L93 Difference]: Finished difference Result 312200 states and 326329 transitions. [2018-07-22 02:27:38,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 02:27:38,710 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 859 [2018-07-22 02:27:38,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 02:27:38,866 INFO L225 Difference]: With dead ends: 312200 [2018-07-22 02:27:38,867 INFO L226 Difference]: Without dead ends: 156477 [2018-07-22 02:27:38,929 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 02:27:39,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156477 states. [2018-07-22 02:27:43,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156477 to 153469. [2018-07-22 02:27:43,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153469 states. [2018-07-22 02:27:43,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153469 states to 153469 states and 159532 transitions. [2018-07-22 02:27:43,619 INFO L78 Accepts]: Start accepts. Automaton has 153469 states and 159532 transitions. Word has length 859 [2018-07-22 02:27:43,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 02:27:43,620 INFO L471 AbstractCegarLoop]: Abstraction has 153469 states and 159532 transitions. [2018-07-22 02:27:43,620 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 02:27:43,620 INFO L276 IsEmpty]: Start isEmpty. Operand 153469 states and 159532 transitions. [2018-07-22 02:27:43,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 870 [2018-07-22 02:27:43,652 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 02:27:43,652 INFO L358 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-22 02:27:43,653 INFO L414 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 02:27:43,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1109618244, now seen corresponding path program 1 times [2018-07-22 02:27:43,653 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 02:27:43,653 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 02:27:43,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:27:43,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 02:27:43,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:27:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 02:27:45,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 1031 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-07-22 02:27:45,591 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 02:27:45,591 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-22 02:27:45,592 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 02:27:45,592 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 02:27:45,592 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 02:27:45,593 INFO L87 Difference]: Start difference. First operand 153469 states and 159532 transitions. Second operand 5 states. [2018-07-22 02:27:55,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 02:27:55,710 INFO L93 Difference]: Finished difference Result 402457 states and 419027 transitions. [2018-07-22 02:27:55,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 02:27:55,710 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 869 [2018-07-22 02:27:55,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 02:27:55,954 INFO L225 Difference]: With dead ends: 402457 [2018-07-22 02:27:55,954 INFO L226 Difference]: Without dead ends: 249742 [2018-07-22 02:27:56,016 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 02:27:56,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249742 states. [2018-07-22 02:27:58,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249742 to 223412. [2018-07-22 02:27:58,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223412 states. [2018-07-22 02:28:04,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223412 states to 223412 states and 232520 transitions. [2018-07-22 02:28:04,207 INFO L78 Accepts]: Start accepts. Automaton has 223412 states and 232520 transitions. Word has length 869 [2018-07-22 02:28:04,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 02:28:04,207 INFO L471 AbstractCegarLoop]: Abstraction has 223412 states and 232520 transitions. [2018-07-22 02:28:04,208 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 02:28:04,208 INFO L276 IsEmpty]: Start isEmpty. Operand 223412 states and 232520 transitions. [2018-07-22 02:28:04,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 937 [2018-07-22 02:28:04,269 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 02:28:04,270 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-22 02:28:04,271 INFO L414 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 02:28:04,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1624277221, now seen corresponding path program 1 times [2018-07-22 02:28:04,272 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 02:28:04,272 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 02:28:04,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:28:04,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 02:28:04,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:28:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 02:28:05,112 WARN L169 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 10 [2018-07-22 02:28:05,508 WARN L169 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 13 [2018-07-22 02:28:06,034 WARN L169 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 20 [2018-07-22 02:28:06,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1078 backedges. 622 proven. 143 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2018-07-22 02:28:06,785 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 02:28:06,785 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 02:28:06,791 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 02:28:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 02:28:06,987 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 02:28:07,604 WARN L169 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 17 [2018-07-22 02:28:08,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1078 backedges. 710 proven. 55 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2018-07-22 02:28:08,569 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-22 02:28:08,569 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2018-07-22 02:28:08,573 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-22 02:28:08,573 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-22 02:28:08,573 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-07-22 02:28:08,573 INFO L87 Difference]: Start difference. First operand 223412 states and 232520 transitions. Second operand 10 states. [2018-07-22 02:28:27,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 02:28:27,189 INFO L93 Difference]: Finished difference Result 476150 states and 495183 transitions. [2018-07-22 02:28:27,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-22 02:28:27,190 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 936 [2018-07-22 02:28:27,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 02:28:27,434 INFO L225 Difference]: With dead ends: 476150 [2018-07-22 02:28:27,434 INFO L226 Difference]: Without dead ends: 245960 [2018-07-22 02:28:27,501 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 949 GetRequests, 933 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2018-07-22 02:28:27,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245960 states. [2018-07-22 02:28:30,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245960 to 230168. [2018-07-22 02:28:30,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230168 states. [2018-07-22 02:28:30,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230168 states to 230168 states and 238524 transitions. [2018-07-22 02:28:30,770 INFO L78 Accepts]: Start accepts. Automaton has 230168 states and 238524 transitions. Word has length 936 [2018-07-22 02:28:30,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 02:28:30,789 INFO L471 AbstractCegarLoop]: Abstraction has 230168 states and 238524 transitions. [2018-07-22 02:28:30,789 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-22 02:28:30,789 INFO L276 IsEmpty]: Start isEmpty. Operand 230168 states and 238524 transitions. [2018-07-22 02:28:30,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1008 [2018-07-22 02:28:30,855 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 02:28:30,856 INFO L358 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 02:28:30,856 INFO L414 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 02:28:30,856 INFO L82 PathProgramCache]: Analyzing trace with hash -959012417, now seen corresponding path program 1 times [2018-07-22 02:28:30,856 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 02:28:30,856 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 02:28:30,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:28:30,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 02:28:30,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 02:28:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 02:28:31,657 WARN L169 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-07-22 02:28:32,015 WARN L169 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2018-07-22 02:28:33,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 1053 proven. 12 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2018-07-22 02:28:33,660 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 02:28:33,660 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 02:28:33,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 02:28:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 02:28:34,639 INFO L273 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2018-07-22 02:28:39,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 1178 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2018-07-22 02:28:39,038 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 02:28:39,038 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 9 [2018-07-22 02:28:39,039 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-22 02:28:39,039 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-22 02:28:39,039 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2018-07-22 02:28:39,039 INFO L87 Difference]: Start difference. First operand 230168 states and 238524 transitions. Second operand 9 states. [2018-07-22 02:28:39,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-22 02:28:39,040 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-22 02:28:39,047 WARN L202 ceAbstractionStarter]: Timeout [2018-07-22 02:28:39,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 02:28:39 BoogieIcfgContainer [2018-07-22 02:28:39,047 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-22 02:28:39,048 INFO L168 Benchmark]: Toolchain (without parser) took 208409.26 ms. Allocated memory was 308.8 MB in the beginning and 2.3 GB in the end (delta: 1.9 GB). Free memory was 240.4 MB in the beginning and 1.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 723.7 MB. Max. memory is 5.3 GB. [2018-07-22 02:28:39,049 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 308.8 MB. Free memory is still 274.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-22 02:28:39,050 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2742.81 ms. Allocated memory was 308.8 MB in the beginning and 388.0 MB in the end (delta: 79.2 MB). Free memory was 239.4 MB in the beginning and 277.7 MB in the end (delta: -38.3 MB). Peak memory consumption was 104.9 MB. Max. memory is 5.3 GB. [2018-07-22 02:28:39,054 INFO L168 Benchmark]: Boogie Procedure Inliner took 413.78 ms. Allocated memory is still 388.0 MB. Free memory was 277.7 MB in the beginning and 203.8 MB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 5.3 GB. [2018-07-22 02:28:39,054 INFO L168 Benchmark]: Boogie Preprocessor took 1370.07 ms. Allocated memory was 388.0 MB in the beginning and 650.1 MB in the end (delta: 262.1 MB). Free memory was 203.8 MB in the beginning and 528.5 MB in the end (delta: -324.7 MB). Peak memory consumption was 118.0 MB. Max. memory is 5.3 GB. [2018-07-22 02:28:39,055 INFO L168 Benchmark]: RCFGBuilder took 9635.22 ms. Allocated memory was 650.1 MB in the beginning and 791.7 MB in the end (delta: 141.6 MB). Free memory was 528.5 MB in the beginning and 565.3 MB in the end (delta: -36.8 MB). Peak memory consumption was 285.9 MB. Max. memory is 5.3 GB. [2018-07-22 02:28:39,055 INFO L168 Benchmark]: TraceAbstraction took 194236.06 ms. Allocated memory was 791.7 MB in the beginning and 2.3 GB in the end (delta: 1.5 GB). Free memory was 560.2 MB in the beginning and 1.5 GB in the end (delta: -902.6 MB). Peak memory consumption was 560.7 MB. Max. memory is 5.3 GB. [2018-07-22 02:28:39,064 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 308.8 MB. Free memory is still 274.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 2742.81 ms. Allocated memory was 308.8 MB in the beginning and 388.0 MB in the end (delta: 79.2 MB). Free memory was 239.4 MB in the beginning and 277.7 MB in the end (delta: -38.3 MB). Peak memory consumption was 104.9 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 413.78 ms. Allocated memory is still 388.0 MB. Free memory was 277.7 MB in the beginning and 203.8 MB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 1370.07 ms. Allocated memory was 388.0 MB in the beginning and 650.1 MB in the end (delta: 262.1 MB). Free memory was 203.8 MB in the beginning and 528.5 MB in the end (delta: -324.7 MB). Peak memory consumption was 118.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 9635.22 ms. Allocated memory was 650.1 MB in the beginning and 791.7 MB in the end (delta: 141.6 MB). Free memory was 528.5 MB in the beginning and 565.3 MB in the end (delta: -36.8 MB). Peak memory consumption was 285.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 194236.06 ms. Allocated memory was 791.7 MB in the beginning and 2.3 GB in the end (delta: 1.5 GB). Free memory was 560.2 MB in the beginning and 1.5 GB in the end (delta: -902.6 MB). Peak memory consumption was 560.7 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 78]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 78). Cancelled while BasicCegarLoop was constructing difference of abstraction (230168states) and interpolant automaton (currently 2 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (1 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 819 locations, 1 error locations. TIMEOUT Result, 194.1s OverallTime, 15 OverallIterations, 6 TraceHistogramMax, 132.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7584 SDtfs, 42394 SDslu, 1759 SDs, 0 SdLazy, 101797 SolverSat, 14309 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 101.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3013 GetRequests, 2931 SyntacticMatches, 21 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 9.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=230168occurred in iteration=14, 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: 30.0s AutomataMinimizationTime, 14 MinimizatonAttempts, 132453 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 5.1s SatisfiabilityAnalysisTime, 19.3s InterpolantComputationTime, 10511 NumberOfCodeBlocks, 10511 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 10492 ConstructedInterpolants, 0 QuantifiedInterpolants, 26841614 SizeOfPredicates, 12 NumberOfNonLiveVariables, 3485 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 19 InterpolantComputations, 13 PerfectInterpolantSequences, 11367/11761 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem12_label21_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-22_02-28-39-081.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem12_label21_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-22_02-28-39-081.csv Completed graceful shutdown