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_label14_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 01:11:26,359 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 01:11:26,361 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 01:11:26,373 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 01:11:26,373 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 01:11:26,374 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 01:11:26,376 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 01:11:26,377 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 01:11:26,379 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 01:11:26,380 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 01:11:26,381 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 01:11:26,381 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 01:11:26,383 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 01:11:26,384 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 01:11:26,386 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 01:11:26,389 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 01:11:26,390 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 01:11:26,395 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 01:11:26,400 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 01:11:26,403 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 01:11:26,406 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 01:11:26,407 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 01:11:26,410 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 01:11:26,414 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 01:11:26,414 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 01:11:26,415 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 01:11:26,416 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 01:11:26,417 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 01:11:26,418 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 01:11:26,423 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 01:11:26,423 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 01:11:26,425 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 01:11:26,425 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 01:11:26,426 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 01:11:26,427 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 01:11:26,427 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 01:11:26,428 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 01:11:26,455 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 01:11:26,455 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 01:11:26,456 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 01:11:26,456 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 01:11:26,457 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 01:11:26,458 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 01:11:26,458 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 01:11:26,459 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 01:11:26,459 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 01:11:26,459 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 01:11:26,460 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 01:11:26,460 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 01:11:26,460 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 01:11:26,460 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 01:11:26,461 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 01:11:26,461 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 01:11:26,461 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 01:11:26,461 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 01:11:26,461 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 01:11:26,462 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 01:11:26,462 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 01:11:26,462 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 01:11:26,462 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 01:11:26,462 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 01:11:26,463 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 01:11:26,463 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 01:11:26,463 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 01:11:26,463 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 01:11:26,510 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 01:11:26,525 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 01:11:26,528 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 01:11:26,530 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 01:11:26,531 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 01:11:26,532 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label14_false-unreach-call.c [2018-07-24 01:11:26,884 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09309759f/1088db02564148feb28e160aa2de6b7a/FLAG21dd540ca [2018-07-24 01:11:27,427 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 01:11:27,428 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label14_false-unreach-call.c [2018-07-24 01:11:27,475 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09309759f/1088db02564148feb28e160aa2de6b7a/FLAG21dd540ca [2018-07-24 01:11:27,491 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09309759f/1088db02564148feb28e160aa2de6b7a [2018-07-24 01:11:27,502 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 01:11:27,504 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 01:11:27,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 01:11:27,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 01:11:27,512 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 01:11:27,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 01:11:27" (1/1) ... [2018-07-24 01:11:27,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5186be49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:11:27, skipping insertion in model container [2018-07-24 01:11:27,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 01:11:27" (1/1) ... [2018-07-24 01:11:27,973 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 01:11:29,637 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 01:11:29,654 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 01:11:31,168 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 01:11:31,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:11:31 WrapperNode [2018-07-24 01:11:31,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 01:11:31,705 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 01:11:31,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 01:11:31,705 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 01:11:31,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:11:31" (1/1) ... [2018-07-24 01:11:31,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:11:31" (1/1) ... [2018-07-24 01:11:32,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 01:11:32,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 01:11:32,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 01:11:32,487 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 01:11:34,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:11:31" (1/1) ... [2018-07-24 01:11:34,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:11:31" (1/1) ... [2018-07-24 01:11:34,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:11:31" (1/1) ... [2018-07-24 01:11:34,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:11:31" (1/1) ... [2018-07-24 01:11:34,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:11:31" (1/1) ... [2018-07-24 01:11:34,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:11:31" (1/1) ... [2018-07-24 01:11:34,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:11:31" (1/1) ... [2018-07-24 01:11:34,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 01:11:34,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 01:11:34,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 01:11:34,938 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 01:11:34,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:11:31" (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 01:11:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 01:11:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 01:11:34,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 01:11:56,819 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 01:11:56,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 01:11:56 BoogieIcfgContainer [2018-07-24 01:11:56,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 01:11:56,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 01:11:56,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 01:11:56,826 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 01:11:56,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 01:11:27" (1/3) ... [2018-07-24 01:11:56,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611179e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 01:11:56, skipping insertion in model container [2018-07-24 01:11:56,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:11:31" (2/3) ... [2018-07-24 01:11:56,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611179e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 01:11:56, skipping insertion in model container [2018-07-24 01:11:56,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 01:11:56" (3/3) ... [2018-07-24 01:11:56,830 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label14_false-unreach-call.c [2018-07-24 01:11:56,838 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 01:11:56,848 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 01:11:56,920 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 01:11:56,921 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 01:11:56,921 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 01:11:56,921 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 01:11:56,921 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 01:11:56,921 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 01:11:56,921 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 01:11:56,922 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 01:11:56,922 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 01:11:56,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-07-24 01:11:56,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-07-24 01:11:56,983 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:11:56,986 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:11:56,986 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:11:56,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1534999810, now seen corresponding path program 1 times [2018-07-24 01:11:56,994 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:11:56,995 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:11:57,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:11:57,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:11:57,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:11:57,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:11:57,234 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 01:11:57,237 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:11:57,238 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:11:57,243 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:11:57,258 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:11:57,259 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:11:57,262 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-07-24 01:12:21,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:12:21,359 INFO L93 Difference]: Finished difference Result 6416 states and 12258 transitions. [2018-07-24 01:12:21,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:12:21,361 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-07-24 01:12:21,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:12:21,424 INFO L225 Difference]: With dead ends: 6416 [2018-07-24 01:12:21,424 INFO L226 Difference]: Without dead ends: 4660 [2018-07-24 01:12:21,437 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 01:12:21,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4660 states. [2018-07-24 01:12:21,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4660 to 4578. [2018-07-24 01:12:21,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4578 states. [2018-07-24 01:12:21,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4578 states to 4578 states and 7859 transitions. [2018-07-24 01:12:21,650 INFO L78 Accepts]: Start accepts. Automaton has 4578 states and 7859 transitions. Word has length 13 [2018-07-24 01:12:21,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:12:21,651 INFO L471 AbstractCegarLoop]: Abstraction has 4578 states and 7859 transitions. [2018-07-24 01:12:21,651 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:12:21,651 INFO L276 IsEmpty]: Start isEmpty. Operand 4578 states and 7859 transitions. [2018-07-24 01:12:21,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-07-24 01:12:21,654 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:12:21,655 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 01:12:21,655 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:12:21,656 INFO L82 PathProgramCache]: Analyzing trace with hash -659085968, now seen corresponding path program 1 times [2018-07-24 01:12:21,656 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:12:21,656 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:12:21,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:12:21,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:12:21,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:12:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:12:22,057 WARN L169 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-07-24 01:12:22,084 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:12:22,085 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:12:22,085 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:12:22,087 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:12:22,087 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:12:22,087 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:12:22,088 INFO L87 Difference]: Start difference. First operand 4578 states and 7859 transitions. Second operand 4 states. [2018-07-24 01:12:45,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:12:45,618 INFO L93 Difference]: Finished difference Result 17609 states and 30521 transitions. [2018-07-24 01:12:45,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:12:45,621 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 86 [2018-07-24 01:12:45,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:12:45,692 INFO L225 Difference]: With dead ends: 17609 [2018-07-24 01:12:45,692 INFO L226 Difference]: Without dead ends: 13033 [2018-07-24 01:12:45,702 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:12:45,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13033 states. [2018-07-24 01:12:45,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13033 to 8674. [2018-07-24 01:12:45,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8674 states. [2018-07-24 01:12:45,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8674 states to 8674 states and 12921 transitions. [2018-07-24 01:12:45,902 INFO L78 Accepts]: Start accepts. Automaton has 8674 states and 12921 transitions. Word has length 86 [2018-07-24 01:12:45,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:12:45,902 INFO L471 AbstractCegarLoop]: Abstraction has 8674 states and 12921 transitions. [2018-07-24 01:12:45,903 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:12:45,903 INFO L276 IsEmpty]: Start isEmpty. Operand 8674 states and 12921 transitions. [2018-07-24 01:12:45,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-07-24 01:12:45,906 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:12:45,907 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 01:12:45,907 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:12:45,907 INFO L82 PathProgramCache]: Analyzing trace with hash 650449254, now seen corresponding path program 1 times [2018-07-24 01:12:45,908 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:12:45,908 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:12:45,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:12:45,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:12:45,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:12:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:12:46,315 WARN L169 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-07-24 01:12:46,500 WARN L169 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 18 [2018-07-24 01:12:46,669 WARN L169 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 23 [2018-07-24 01:12:46,885 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:12:46,886 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:12:46,886 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 01:12:46,886 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 01:12:46,887 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 01:12:46,887 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-24 01:12:46,887 INFO L87 Difference]: Start difference. First operand 8674 states and 12921 transitions. Second operand 6 states. [2018-07-24 01:13:22,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:13:22,411 INFO L93 Difference]: Finished difference Result 29658 states and 42742 transitions. [2018-07-24 01:13:22,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 01:13:22,412 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 96 [2018-07-24 01:13:22,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:13:22,478 INFO L225 Difference]: With dead ends: 29658 [2018-07-24 01:13:22,479 INFO L226 Difference]: Without dead ends: 20986 [2018-07-24 01:13:22,490 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-07-24 01:13:22,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20986 states. [2018-07-24 01:13:22,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20986 to 19610. [2018-07-24 01:13:22,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19610 states. [2018-07-24 01:13:22,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19610 states to 19610 states and 27229 transitions. [2018-07-24 01:13:22,805 INFO L78 Accepts]: Start accepts. Automaton has 19610 states and 27229 transitions. Word has length 96 [2018-07-24 01:13:22,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:13:22,806 INFO L471 AbstractCegarLoop]: Abstraction has 19610 states and 27229 transitions. [2018-07-24 01:13:22,806 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 01:13:22,806 INFO L276 IsEmpty]: Start isEmpty. Operand 19610 states and 27229 transitions. [2018-07-24 01:13:22,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-07-24 01:13:22,809 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:13:22,809 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 01:13:22,810 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:13:22,810 INFO L82 PathProgramCache]: Analyzing trace with hash 417198370, now seen corresponding path program 1 times [2018-07-24 01:13:22,810 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:13:22,810 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:13:22,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:13:22,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:13:22,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:13:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:13:23,537 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:13:23,537 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:13:23,538 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 01:13:23,538 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 01:13:23,539 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 01:13:23,539 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-24 01:13:23,539 INFO L87 Difference]: Start difference. First operand 19610 states and 27229 transitions. Second operand 7 states. [2018-07-24 01:14:04,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:14:04,306 INFO L93 Difference]: Finished difference Result 52891 states and 71705 transitions. [2018-07-24 01:14:04,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 01:14:04,306 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 221 [2018-07-24 01:14:04,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:14:04,372 INFO L225 Difference]: With dead ends: 52891 [2018-07-24 01:14:04,373 INFO L226 Difference]: Without dead ends: 33283 [2018-07-24 01:14:04,394 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-07-24 01:14:04,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33283 states. [2018-07-24 01:14:04,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33283 to 29181. [2018-07-24 01:14:04,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29181 states. [2018-07-24 01:14:04,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29181 states to 29181 states and 37261 transitions. [2018-07-24 01:14:04,795 INFO L78 Accepts]: Start accepts. Automaton has 29181 states and 37261 transitions. Word has length 221 [2018-07-24 01:14:04,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:14:04,796 INFO L471 AbstractCegarLoop]: Abstraction has 29181 states and 37261 transitions. [2018-07-24 01:14:04,796 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 01:14:04,796 INFO L276 IsEmpty]: Start isEmpty. Operand 29181 states and 37261 transitions. [2018-07-24 01:14:04,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2018-07-24 01:14:04,799 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:14:04,800 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 01:14:04,800 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:14:04,800 INFO L82 PathProgramCache]: Analyzing trace with hash -428554168, now seen corresponding path program 1 times [2018-07-24 01:14:04,800 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:14:04,800 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:14:04,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:14:04,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:14:04,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:14:04,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:14:05,173 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 01:14:05,174 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:14:05,174 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 01:14:05,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:14:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:14:05,314 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:14:05,468 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:14:05,494 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 01:14:05,494 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-07-24 01:14:05,495 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 01:14:05,496 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 01:14:05,496 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 01:14:05,496 INFO L87 Difference]: Start difference. First operand 29181 states and 37261 transitions. Second operand 5 states. [2018-07-24 01:14:36,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:14:36,172 INFO L93 Difference]: Finished difference Result 119946 states and 158036 transitions. [2018-07-24 01:14:36,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 01:14:36,175 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 249 [2018-07-24 01:14:36,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:14:36,328 INFO L225 Difference]: With dead ends: 119946 [2018-07-24 01:14:36,328 INFO L226 Difference]: Without dead ends: 92133 [2018-07-24 01:14:36,373 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 01:14:36,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92133 states. [2018-07-24 01:14:37,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92133 to 67436. [2018-07-24 01:14:37,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67436 states. [2018-07-24 01:14:37,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67436 states to 67436 states and 83707 transitions. [2018-07-24 01:14:37,599 INFO L78 Accepts]: Start accepts. Automaton has 67436 states and 83707 transitions. Word has length 249 [2018-07-24 01:14:37,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:14:37,600 INFO L471 AbstractCegarLoop]: Abstraction has 67436 states and 83707 transitions. [2018-07-24 01:14:37,600 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 01:14:37,600 INFO L276 IsEmpty]: Start isEmpty. Operand 67436 states and 83707 transitions. [2018-07-24 01:14:37,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2018-07-24 01:14:37,618 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:14:37,618 INFO L353 BasicCegarLoop]: trace histogram [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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:14:37,619 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:14:37,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1471201723, now seen corresponding path program 1 times [2018-07-24 01:14:37,619 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:14:37,619 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:14:37,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:14:37,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:14:37,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:14:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:14:38,451 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 377 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-07-24 01:14:38,452 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:14:38,452 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 01:14:38,452 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:14:38,453 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:14:38,453 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:14:38,453 INFO L87 Difference]: Start difference. First operand 67436 states and 83707 transitions. Second operand 4 states. [2018-07-24 01:15:01,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:15:01,311 INFO L93 Difference]: Finished difference Result 181323 states and 227387 transitions. [2018-07-24 01:15:01,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:15:01,311 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 476 [2018-07-24 01:15:01,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:15:01,461 INFO L225 Difference]: With dead ends: 181323 [2018-07-24 01:15:01,461 INFO L226 Difference]: Without dead ends: 113888 [2018-07-24 01:15:01,498 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:15:01,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113888 states. [2018-07-24 01:15:02,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113888 to 113880. [2018-07-24 01:15:02,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113880 states. [2018-07-24 01:15:02,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113880 states to 113880 states and 134321 transitions. [2018-07-24 01:15:02,819 INFO L78 Accepts]: Start accepts. Automaton has 113880 states and 134321 transitions. Word has length 476 [2018-07-24 01:15:02,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:15:02,819 INFO L471 AbstractCegarLoop]: Abstraction has 113880 states and 134321 transitions. [2018-07-24 01:15:02,819 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:15:02,819 INFO L276 IsEmpty]: Start isEmpty. Operand 113880 states and 134321 transitions. [2018-07-24 01:15:02,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 589 [2018-07-24 01:15:02,837 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:15:02,838 INFO L353 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:15:02,838 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:15:02,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1829213543, now seen corresponding path program 1 times [2018-07-24 01:15:02,839 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:15:02,839 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:15:02,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:15:02,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:15:02,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:15:02,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:15:03,815 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 160 proven. 4 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2018-07-24 01:15:03,815 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:15:03,815 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 01:15:03,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:15:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:15:04,035 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:15:04,281 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 395 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-07-24 01:15:04,301 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 01:15:04,302 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-07-24 01:15:04,303 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:15:04,303 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:15:04,303 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:15:04,304 INFO L87 Difference]: Start difference. First operand 113880 states and 134321 transitions. Second operand 4 states. Received shutdown request... [2018-07-24 01:15:30,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:15:30,200 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 01:15:30,206 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 01:15:30,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 01:15:30 BoogieIcfgContainer [2018-07-24 01:15:30,207 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 01:15:30,208 INFO L168 Benchmark]: Toolchain (without parser) took 242705.03 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 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 978.0 MB. Max. memory is 7.1 GB. [2018-07-24 01:15:30,209 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 01:15:30,210 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4199.62 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 177.2 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -99.8 MB). Peak memory consumption was 478.1 MB. Max. memory is 7.1 GB. [2018-07-24 01:15:30,211 INFO L168 Benchmark]: Boogie Procedure Inliner took 781.71 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: 182.5 MB). Peak memory consumption was 182.5 MB. Max. memory is 7.1 GB. [2018-07-24 01:15:30,211 INFO L168 Benchmark]: Boogie Preprocessor took 2449.96 ms. Allocated memory was 1.7 GB in the beginning and 2.8 GB in the end (delta: 1.1 GB). Free memory was 1.3 GB in the beginning and 2.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 197.9 MB. Max. memory is 7.1 GB. [2018-07-24 01:15:30,212 INFO L168 Benchmark]: RCFGBuilder took 21884.50 ms. Allocated memory was 2.8 GB in the beginning and 3.0 GB in the end (delta: 242.2 MB). Free memory was 2.5 GB in the beginning and 2.1 GB in the end (delta: 365.8 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-07-24 01:15:30,213 INFO L168 Benchmark]: TraceAbstraction took 213384.39 ms. Allocated memory was 3.0 GB in the beginning and 3.9 GB in the end (delta: 919.6 MB). Free memory was 2.1 GB in the beginning and 2.8 GB in the end (delta: -727.1 MB). Peak memory consumption was 192.5 MB. Max. memory is 7.1 GB. [2018-07-24 01:15:30,219 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 4199.62 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 177.2 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -99.8 MB). Peak memory consumption was 478.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 781.71 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: 182.5 MB). Peak memory consumption was 182.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 2449.96 ms. Allocated memory was 1.7 GB in the beginning and 2.8 GB in the end (delta: 1.1 GB). Free memory was 1.3 GB in the beginning and 2.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 197.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 21884.50 ms. Allocated memory was 2.8 GB in the beginning and 3.0 GB in the end (delta: 242.2 MB). Free memory was 2.5 GB in the beginning and 2.1 GB in the end (delta: 365.8 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 213384.39 ms. Allocated memory was 3.0 GB in the beginning and 3.9 GB in the end (delta: 919.6 MB). Free memory was 2.1 GB in the beginning and 2.8 GB in the end (delta: -727.1 MB). Peak memory consumption was 192.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 52). Cancelled while BasicCegarLoop was constructing difference of abstraction (113880states) and interpolant automaton (currently 4 states, 4 states before enhancement), while ReachableStatesComputation was computing reachable states (337928 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 213.2s OverallTime, 7 OverallIterations, 5 TraceHistogramMax, 204.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8981 SDtfs, 37190 SDslu, 3521 SDs, 0 SdLazy, 79238 SolverSat, 20720 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 176.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 872 GetRequests, 842 SyntacticMatches, 5 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113880occurred in iteration=6, 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: 3.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 34624 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 2566 NumberOfCodeBlocks, 2566 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2557 ConstructedInterpolants, 0 QuantifiedInterpolants, 3779324 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1016 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 1322/1331 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_label14_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_01-15-30-235.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label14_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_01-15-30-235.csv Completed graceful shutdown