java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label59_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 01:17:55,386 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 01:17:55,390 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 01:17:55,407 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 01:17:55,407 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 01:17:55,408 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 01:17:55,409 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 01:17:55,412 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 01:17:55,414 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 01:17:55,414 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 01:17:55,415 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 01:17:55,415 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 01:17:55,419 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 01:17:55,421 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 01:17:55,423 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 01:17:55,424 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 01:17:55,425 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 01:17:55,426 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 01:17:55,428 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 01:17:55,430 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 01:17:55,430 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 01:17:55,432 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 01:17:55,435 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 01:17:55,435 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 01:17:55,435 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 01:17:55,436 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 01:17:55,437 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 01:17:55,439 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 01:17:55,441 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 01:17:55,443 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 01:17:55,444 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 01:17:55,444 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 01:17:55,445 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 01:17:55,445 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 01:17:55,448 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 01:17:55,448 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 01:17:55,449 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-24 01:17:55,469 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 01:17:55,469 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 01:17:55,470 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 01:17:55,470 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 01:17:55,471 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 01:17:55,471 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 01:17:55,471 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 01:17:55,471 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 01:17:55,472 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 01:17:55,472 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 01:17:55,472 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 01:17:55,472 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 01:17:55,472 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 01:17:55,473 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 01:17:55,473 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 01:17:55,473 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 01:17:55,473 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 01:17:55,473 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 01:17:55,474 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 01:17:55,474 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 01:17:55,474 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 01:17:55,474 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 01:17:55,474 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 01:17:55,475 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 01:17:55,475 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 01:17:55,475 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 01:17:55,475 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 01:17:55,475 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 01:17:55,517 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 01:17:55,529 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 01:17:55,534 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 01:17:55,535 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 01:17:55,536 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 01:17:55,537 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label59_false-unreach-call.c [2018-07-24 01:17:55,890 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab6393dd0/d44b728a162a4a549d4977189f4cab0e/FLAGaf5bb41f4 [2018-07-24 01:17:56,474 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 01:17:56,475 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label59_false-unreach-call.c [2018-07-24 01:17:56,520 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab6393dd0/d44b728a162a4a549d4977189f4cab0e/FLAGaf5bb41f4 [2018-07-24 01:17:56,536 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab6393dd0/d44b728a162a4a549d4977189f4cab0e [2018-07-24 01:17:56,547 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 01:17:56,549 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 01:17:56,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 01:17:56,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 01:17:56,557 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 01:17:56,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 01:17:56" (1/1) ... [2018-07-24 01:17:56,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cca5ef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:17:56, skipping insertion in model container [2018-07-24 01:17:56,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 01:17:56" (1/1) ... [2018-07-24 01:17:57,016 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 01:17:58,656 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 01:17:58,681 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 01:18:00,045 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 01:18:00,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:18:00 WrapperNode [2018-07-24 01:18:00,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 01:18:00,528 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 01:18:00,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 01:18:00,529 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 01:18:00,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:18:00" (1/1) ... [2018-07-24 01:18:00,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:18:00" (1/1) ... [2018-07-24 01:18:01,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 01:18:01,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 01:18:01,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 01:18:01,320 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 01:18:03,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:18:00" (1/1) ... [2018-07-24 01:18:03,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:18:00" (1/1) ... [2018-07-24 01:18:03,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:18:00" (1/1) ... [2018-07-24 01:18:03,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:18:00" (1/1) ... [2018-07-24 01:18:03,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:18:00" (1/1) ... [2018-07-24 01:18:03,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:18:00" (1/1) ... [2018-07-24 01:18:03,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:18:00" (1/1) ... [2018-07-24 01:18:03,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 01:18:03,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 01:18:03,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 01:18:03,721 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 01:18:03,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:18:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 01:18:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 01:18:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 01:18:03,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 01:18:24,299 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 01:18:24,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 01:18:24 BoogieIcfgContainer [2018-07-24 01:18:24,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 01:18:24,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 01:18:24,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 01:18:24,304 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 01:18:24,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 01:17:56" (1/3) ... [2018-07-24 01:18:24,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7005205e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 01:18:24, skipping insertion in model container [2018-07-24 01:18:24,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:18:00" (2/3) ... [2018-07-24 01:18:24,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7005205e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 01:18:24, skipping insertion in model container [2018-07-24 01:18:24,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 01:18:24" (3/3) ... [2018-07-24 01:18:24,308 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label59_false-unreach-call.c [2018-07-24 01:18:24,314 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 01:18:24,324 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 01:18:24,388 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 01:18:24,389 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 01:18:24,389 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 01:18:24,389 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 01:18:24,390 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 01:18:24,390 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 01:18:24,390 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 01:18:24,390 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 01:18:24,390 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 01:18:24,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-07-24 01:18:24,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-07-24 01:18:24,446 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:18:24,447 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:18:24,448 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:18:24,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1580163962, now seen corresponding path program 1 times [2018-07-24 01:18:24,455 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:18:24,456 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:18:24,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:18:24,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:18:24,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:18:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:18:24,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:18:24,864 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:18:24,864 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:18:24,869 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:18:24,884 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:18:24,885 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:18:24,887 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-07-24 01:18:47,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:18:47,198 INFO L93 Difference]: Finished difference Result 6416 states and 12258 transitions. [2018-07-24 01:18:47,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:18:47,201 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2018-07-24 01:18:47,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:18:47,260 INFO L225 Difference]: With dead ends: 6416 [2018-07-24 01:18:47,260 INFO L226 Difference]: Without dead ends: 4660 [2018-07-24 01:18:47,272 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:18:47,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4660 states. [2018-07-24 01:18:47,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4660 to 4578. [2018-07-24 01:18:47,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4578 states. [2018-07-24 01:18:47,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4578 states to 4578 states and 7859 transitions. [2018-07-24 01:18:47,497 INFO L78 Accepts]: Start accepts. Automaton has 4578 states and 7859 transitions. Word has length 26 [2018-07-24 01:18:47,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:18:47,498 INFO L471 AbstractCegarLoop]: Abstraction has 4578 states and 7859 transitions. [2018-07-24 01:18:47,498 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:18:47,498 INFO L276 IsEmpty]: Start isEmpty. Operand 4578 states and 7859 transitions. [2018-07-24 01:18:47,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-07-24 01:18:47,503 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:18:47,503 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:18:47,504 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:18:47,504 INFO L82 PathProgramCache]: Analyzing trace with hash 434309037, now seen corresponding path program 1 times [2018-07-24 01:18:47,504 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:18:47,504 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:18:47,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:18:47,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:18:47,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:18:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:18:47,842 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-07-24 01:18:47,873 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:18:47,874 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:18:47,874 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:18:47,876 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:18:47,876 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:18:47,877 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:18:47,877 INFO L87 Difference]: Start difference. First operand 4578 states and 7859 transitions. Second operand 4 states. [2018-07-24 01:19:12,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:19:12,262 INFO L93 Difference]: Finished difference Result 17609 states and 30521 transitions. [2018-07-24 01:19:12,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:19:12,264 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 99 [2018-07-24 01:19:12,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:19:12,328 INFO L225 Difference]: With dead ends: 17609 [2018-07-24 01:19:12,329 INFO L226 Difference]: Without dead ends: 13033 [2018-07-24 01:19:12,337 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:19:12,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13033 states. [2018-07-24 01:19:12,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13033 to 8674. [2018-07-24 01:19:12,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8674 states. [2018-07-24 01:19:12,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8674 states to 8674 states and 12921 transitions. [2018-07-24 01:19:12,527 INFO L78 Accepts]: Start accepts. Automaton has 8674 states and 12921 transitions. Word has length 99 [2018-07-24 01:19:12,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:19:12,528 INFO L471 AbstractCegarLoop]: Abstraction has 8674 states and 12921 transitions. [2018-07-24 01:19:12,528 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:19:12,528 INFO L276 IsEmpty]: Start isEmpty. Operand 8674 states and 12921 transitions. [2018-07-24 01:19:12,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-07-24 01:19:12,533 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:19:12,533 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:19:12,533 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:19:12,534 INFO L82 PathProgramCache]: Analyzing trace with hash -933456329, now seen corresponding path program 1 times [2018-07-24 01:19:12,534 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:19:12,534 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:19:12,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:19:12,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:19:12,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:19:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:19:12,918 WARN L169 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-07-24 01:19:13,178 WARN L169 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 23 [2018-07-24 01:19:13,308 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:19:13,308 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:19:13,308 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 01:19:13,309 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 01:19:13,309 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 01:19:13,309 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-24 01:19:13,309 INFO L87 Difference]: Start difference. First operand 8674 states and 12921 transitions. Second operand 6 states. [2018-07-24 01:19:47,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:19:47,503 INFO L93 Difference]: Finished difference Result 29658 states and 42742 transitions. [2018-07-24 01:19:47,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 01:19:47,509 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2018-07-24 01:19:47,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:19:47,589 INFO L225 Difference]: With dead ends: 29658 [2018-07-24 01:19:47,589 INFO L226 Difference]: Without dead ends: 20986 [2018-07-24 01:19:47,602 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-07-24 01:19:47,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20986 states. [2018-07-24 01:19:47,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20986 to 19610. [2018-07-24 01:19:47,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19610 states. [2018-07-24 01:19:47,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19610 states to 19610 states and 27229 transitions. [2018-07-24 01:19:47,906 INFO L78 Accepts]: Start accepts. Automaton has 19610 states and 27229 transitions. Word has length 109 [2018-07-24 01:19:47,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:19:47,906 INFO L471 AbstractCegarLoop]: Abstraction has 19610 states and 27229 transitions. [2018-07-24 01:19:47,906 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 01:19:47,907 INFO L276 IsEmpty]: Start isEmpty. Operand 19610 states and 27229 transitions. [2018-07-24 01:19:47,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-07-24 01:19:47,918 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:19:47,921 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:19:47,922 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:19:47,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1650992551, now seen corresponding path program 1 times [2018-07-24 01:19:47,922 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:19:47,922 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:19:47,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:19:47,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:19:47,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:19:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:19:48,189 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:19:48,189 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:19:48,189 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 01:19:48,190 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:19:48,190 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:19:48,190 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:19:48,191 INFO L87 Difference]: Start difference. First operand 19610 states and 27229 transitions. Second operand 4 states. [2018-07-24 01:20:05,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:20:05,085 INFO L93 Difference]: Finished difference Result 48790 states and 67392 transitions. [2018-07-24 01:20:05,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:20:05,086 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 234 [2018-07-24 01:20:05,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:20:05,141 INFO L225 Difference]: With dead ends: 48790 [2018-07-24 01:20:05,141 INFO L226 Difference]: Without dead ends: 27815 [2018-07-24 01:20:05,159 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:20:05,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27815 states. [2018-07-24 01:20:05,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27815 to 27812. [2018-07-24 01:20:05,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27812 states. [2018-07-24 01:20:05,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27812 states to 27812 states and 36227 transitions. [2018-07-24 01:20:05,504 INFO L78 Accepts]: Start accepts. Automaton has 27812 states and 36227 transitions. Word has length 234 [2018-07-24 01:20:05,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:20:05,505 INFO L471 AbstractCegarLoop]: Abstraction has 27812 states and 36227 transitions. [2018-07-24 01:20:05,506 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:20:05,506 INFO L276 IsEmpty]: Start isEmpty. Operand 27812 states and 36227 transitions. [2018-07-24 01:20:05,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2018-07-24 01:20:05,514 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:20:05,517 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:20:05,518 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:20:05,518 INFO L82 PathProgramCache]: Analyzing trace with hash -381776721, now seen corresponding path program 1 times [2018-07-24 01:20:05,518 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:20:05,518 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:20:05,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:20:05,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:20:05,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:20:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:20:06,445 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-07-24 01:20:06,445 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:20:06,446 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 01:20:06,446 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 01:20:06,446 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 01:20:06,447 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-24 01:20:06,447 INFO L87 Difference]: Start difference. First operand 27812 states and 36227 transitions. Second operand 7 states. [2018-07-24 01:20:33,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:20:33,395 INFO L93 Difference]: Finished difference Result 67950 states and 88002 transitions. [2018-07-24 01:20:33,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 01:20:33,395 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 376 [2018-07-24 01:20:33,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:20:33,460 INFO L225 Difference]: With dead ends: 67950 [2018-07-24 01:20:33,461 INFO L226 Difference]: Without dead ends: 40140 [2018-07-24 01:20:33,487 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-07-24 01:20:33,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40140 states. [2018-07-24 01:20:33,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40140 to 36038. [2018-07-24 01:20:33,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36038 states. [2018-07-24 01:20:33,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36038 states to 36038 states and 44902 transitions. [2018-07-24 01:20:33,906 INFO L78 Accepts]: Start accepts. Automaton has 36038 states and 44902 transitions. Word has length 376 [2018-07-24 01:20:33,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:20:33,906 INFO L471 AbstractCegarLoop]: Abstraction has 36038 states and 44902 transitions. [2018-07-24 01:20:33,907 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 01:20:33,907 INFO L276 IsEmpty]: Start isEmpty. Operand 36038 states and 44902 transitions. [2018-07-24 01:20:33,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2018-07-24 01:20:33,918 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:20:33,918 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:20:33,918 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:20:33,919 INFO L82 PathProgramCache]: Analyzing trace with hash 116279625, now seen corresponding path program 1 times [2018-07-24 01:20:33,919 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:20:33,919 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:20:33,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:20:33,920 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:20:33,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:20:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:20:34,304 WARN L169 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-07-24 01:20:34,457 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 188 proven. 4 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-07-24 01:20:34,458 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:20:34,458 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 01:20:34,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:20:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:20:34,658 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:20:34,805 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 256 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-07-24 01:20:34,827 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 01:20:34,827 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-07-24 01:20:34,828 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:20:34,828 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:20:34,828 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:20:34,828 INFO L87 Difference]: Start difference. First operand 36038 states and 44902 transitions. Second operand 4 states. [2018-07-24 01:21:02,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:21:02,393 INFO L93 Difference]: Finished difference Result 133794 states and 168917 transitions. [2018-07-24 01:21:02,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:21:02,393 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 404 [2018-07-24 01:21:02,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:21:02,683 INFO L225 Difference]: With dead ends: 133794 [2018-07-24 01:21:02,683 INFO L226 Difference]: Without dead ends: 96384 [2018-07-24 01:21:02,707 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:21:02,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96384 states. [2018-07-24 01:21:03,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96384 to 63342. [2018-07-24 01:21:03,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63342 states. [2018-07-24 01:21:03,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63342 states to 63342 states and 78154 transitions. [2018-07-24 01:21:03,890 INFO L78 Accepts]: Start accepts. Automaton has 63342 states and 78154 transitions. Word has length 404 [2018-07-24 01:21:03,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:21:03,891 INFO L471 AbstractCegarLoop]: Abstraction has 63342 states and 78154 transitions. [2018-07-24 01:21:03,891 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:21:03,892 INFO L276 IsEmpty]: Start isEmpty. Operand 63342 states and 78154 transitions. [2018-07-24 01:21:03,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2018-07-24 01:21:03,902 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:21:03,903 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:21:03,903 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:21:03,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1649658732, now seen corresponding path program 1 times [2018-07-24 01:21:03,903 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:21:03,904 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:21:03,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:21:03,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:21:03,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:21:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:21:04,480 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:21:04,481 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:21:04,481 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:21:04,482 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:21:04,482 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:21:04,483 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:21:04,483 INFO L87 Difference]: Start difference. First operand 63342 states and 78154 transitions. Second operand 3 states. [2018-07-24 01:21:18,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:21:18,498 INFO L93 Difference]: Finished difference Result 171781 states and 213532 transitions. [2018-07-24 01:21:18,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:21:18,503 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 514 [2018-07-24 01:21:18,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:21:18,643 INFO L225 Difference]: With dead ends: 171781 [2018-07-24 01:21:18,643 INFO L226 Difference]: Without dead ends: 109807 [2018-07-24 01:21:18,685 INFO L573 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 [2018-07-24 01:21:18,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109807 states. [2018-07-24 01:21:19,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109807 to 109794. [2018-07-24 01:21:19,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109794 states. [2018-07-24 01:21:19,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109794 states to 109794 states and 133917 transitions. [2018-07-24 01:21:19,881 INFO L78 Accepts]: Start accepts. Automaton has 109794 states and 133917 transitions. Word has length 514 [2018-07-24 01:21:19,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:21:19,882 INFO L471 AbstractCegarLoop]: Abstraction has 109794 states and 133917 transitions. [2018-07-24 01:21:19,882 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:21:19,882 INFO L276 IsEmpty]: Start isEmpty. Operand 109794 states and 133917 transitions. [2018-07-24 01:21:19,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2018-07-24 01:21:19,904 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:21:19,904 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 01:21:19,904 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:21:19,905 INFO L82 PathProgramCache]: Analyzing trace with hash -879393174, now seen corresponding path program 1 times [2018-07-24 01:21:19,905 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:21:19,905 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:21:19,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:21:19,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:21:19,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:21:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:21:21,015 WARN L169 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-07-24 01:21:21,238 WARN L169 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 22 [2018-07-24 01:21:21,829 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 479 proven. 4 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2018-07-24 01:21:21,829 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:21:21,829 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 01:21:21,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:21:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:21:22,053 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:21:22,860 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 483 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2018-07-24 01:21:22,881 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 01:21:22,882 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-07-24 01:21:22,883 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 01:21:22,883 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 01:21:22,883 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-24 01:21:22,884 INFO L87 Difference]: Start difference. First operand 109794 states and 133917 transitions. Second operand 5 states. [2018-07-24 01:21:44,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:21:44,655 INFO L93 Difference]: Finished difference Result 227784 states and 276581 transitions. [2018-07-24 01:21:44,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 01:21:44,656 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 647 [2018-07-24 01:21:44,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:21:44,794 INFO L225 Difference]: With dead ends: 227784 [2018-07-24 01:21:44,794 INFO L226 Difference]: Without dead ends: 115255 [2018-07-24 01:21:44,853 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 653 GetRequests, 647 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-24 01:21:44,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115255 states. [2018-07-24 01:21:45,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115255 to 111156. [2018-07-24 01:21:45,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111156 states. [2018-07-24 01:21:45,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111156 states to 111156 states and 126663 transitions. [2018-07-24 01:21:45,799 INFO L78 Accepts]: Start accepts. Automaton has 111156 states and 126663 transitions. Word has length 647 [2018-07-24 01:21:45,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:21:45,800 INFO L471 AbstractCegarLoop]: Abstraction has 111156 states and 126663 transitions. [2018-07-24 01:21:45,800 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 01:21:45,800 INFO L276 IsEmpty]: Start isEmpty. Operand 111156 states and 126663 transitions. [2018-07-24 01:21:45,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 680 [2018-07-24 01:21:45,820 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:21:45,820 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:21:45,820 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:21:45,821 INFO L82 PathProgramCache]: Analyzing trace with hash -71900302, now seen corresponding path program 1 times [2018-07-24 01:21:45,821 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:21:45,821 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:21:45,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:21:45,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:21:45,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:21:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:21:47,202 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 204 proven. 72 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-07-24 01:21:47,203 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:21:47,203 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 01:21:47,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:21:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:21:47,443 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:21:48,004 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-07-24 01:21:48,042 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 01:21:48,043 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-07-24 01:21:48,044 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 01:21:48,045 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 01:21:48,045 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 01:21:48,045 INFO L87 Difference]: Start difference. First operand 111156 states and 126663 transitions. Second operand 5 states. Received shutdown request... [2018-07-24 01:21:57,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:21:57,404 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 01:21:57,410 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 01:21:57,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 01:21:57 BoogieIcfgContainer [2018-07-24 01:21:57,411 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 01:21:57,412 INFO L168 Benchmark]: Toolchain (without parser) took 240864.15 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 611.5 MB. Max. memory is 7.1 GB. [2018-07-24 01:21:57,413 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 01:21:57,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3977.80 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 174.1 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -101.4 MB). Peak memory consumption was 488.1 MB. Max. memory is 7.1 GB. [2018-07-24 01:21:57,414 INFO L168 Benchmark]: Boogie Procedure Inliner took 791.65 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 181.3 MB). Peak memory consumption was 181.3 MB. Max. memory is 7.1 GB. [2018-07-24 01:21:57,415 INFO L168 Benchmark]: Boogie Preprocessor took 2400.16 ms. Allocated memory was 1.7 GB in the beginning and 2.8 GB in the end (delta: 1.1 GB). Free memory was 1.3 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 194.6 MB. Max. memory is 7.1 GB. [2018-07-24 01:21:57,416 INFO L168 Benchmark]: RCFGBuilder took 20579.84 ms. Allocated memory was 2.8 GB in the beginning and 3.0 GB in the end (delta: 223.3 MB). Free memory was 2.5 GB in the beginning and 2.1 GB in the end (delta: 370.0 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-07-24 01:21:57,417 INFO L168 Benchmark]: TraceAbstraction took 213109.82 ms. Allocated memory was 3.0 GB in the beginning and 3.9 GB in the end (delta: 919.1 MB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.1 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 01:21:57,422 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3977.80 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 174.1 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -101.4 MB). Peak memory consumption was 488.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 791.65 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 181.3 MB). Peak memory consumption was 181.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 2400.16 ms. Allocated memory was 1.7 GB in the beginning and 2.8 GB in the end (delta: 1.1 GB). Free memory was 1.3 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 194.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 20579.84 ms. Allocated memory was 2.8 GB in the beginning and 3.0 GB in the end (delta: 223.3 MB). Free memory was 2.5 GB in the beginning and 2.1 GB in the end (delta: 370.0 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 213109.82 ms. Allocated memory was 3.0 GB in the beginning and 3.9 GB in the end (delta: 919.1 MB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.1 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 91). Cancelled while BasicCegarLoop was constructing difference of abstraction (111156states) and interpolant automaton (currently 4 states, 5 states before enhancement), while ReachableStatesComputation was computing reachable states (90768 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 213.0s OverallTime, 9 OverallIterations, 5 TraceHistogramMax, 198.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 13501 SDtfs, 40366 SDslu, 3777 SDs, 0 SdLazy, 80267 SolverSat, 16155 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 170.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1776 GetRequests, 1737 SyntacticMatches, 9 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111156occurred in iteration=8, 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: 4.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 47076 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 4818 NumberOfCodeBlocks, 4818 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 4806 ConstructedInterpolants, 0 QuantifiedInterpolants, 9175356 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2111 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 2920/3000 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label59_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_01-21-57-438.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label59_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_01-21-57-438.csv Completed graceful shutdown