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_label54_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 03:39:54,552 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 03:39:54,554 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 03:39:54,569 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 03:39:54,570 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 03:39:54,571 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 03:39:54,572 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 03:39:54,574 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 03:39:54,575 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 03:39:54,576 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 03:39:54,577 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 03:39:54,577 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 03:39:54,578 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 03:39:54,579 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 03:39:54,580 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 03:39:54,581 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 03:39:54,582 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 03:39:54,584 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 03:39:54,586 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 03:39:54,587 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 03:39:54,588 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 03:39:54,589 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 03:39:54,592 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 03:39:54,592 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 03:39:54,592 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 03:39:54,593 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 03:39:54,594 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 03:39:54,595 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 03:39:54,596 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 03:39:54,597 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 03:39:54,597 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 03:39:54,598 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-24 03:39:54,601 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 03:39:54,624 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 03:39:54,624 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 03:39:54,625 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 03:39:54,625 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 03:39:54,626 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 03:39:54,626 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 03:39:54,626 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 03:39:54,627 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 03:39:54,627 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 03:39:54,627 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 03:39:54,630 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 03:39:54,630 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 03:39:54,630 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 03:39:54,631 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 03:39:54,631 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 03:39:54,631 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 03:39:54,631 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 03:39:54,631 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 03:39:54,631 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 03:39:54,632 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 03:39:54,632 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 03:39:54,632 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 03:39:54,632 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 03:39:54,633 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 03:39:54,633 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 03:39:54,633 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 03:39:54,633 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 03:39:54,633 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 03:39:54,699 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 03:39:54,716 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 03:39:54,723 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 03:39:54,724 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 03:39:54,725 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 03:39:54,726 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label54_true-unreach-call.c [2018-07-24 03:39:55,097 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/408b5c06f/e85e87efbb41453d978670488cd9ea45/FLAG7155c7ab8 [2018-07-24 03:39:55,659 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 03:39:55,660 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label54_true-unreach-call.c [2018-07-24 03:39:55,708 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/408b5c06f/e85e87efbb41453d978670488cd9ea45/FLAG7155c7ab8 [2018-07-24 03:39:55,725 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/408b5c06f/e85e87efbb41453d978670488cd9ea45 [2018-07-24 03:39:55,737 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 03:39:55,739 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 03:39:55,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 03:39:55,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 03:39:55,748 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 03:39:55,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 03:39:55" (1/1) ... [2018-07-24 03:39:55,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15bcc68a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:55, skipping insertion in model container [2018-07-24 03:39:55,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 03:39:55" (1/1) ... [2018-07-24 03:39:56,227 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 03:39:57,885 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 03:39:57,902 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 03:39:59,173 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 03:39:59,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:59 WrapperNode [2018-07-24 03:39:59,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 03:39:59,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 03:39:59,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 03:39:59,969 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 03:39:59,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:59" (1/1) ... [2018-07-24 03:40:00,147 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:59" (1/1) ... [2018-07-24 03:40:00,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 03:40:00,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 03:40:00,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 03:40:00,761 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 03:40:02,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:59" (1/1) ... [2018-07-24 03:40:02,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:59" (1/1) ... [2018-07-24 03:40:02,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:59" (1/1) ... [2018-07-24 03:40:02,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:59" (1/1) ... [2018-07-24 03:40:02,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:59" (1/1) ... [2018-07-24 03:40:03,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:59" (1/1) ... [2018-07-24 03:40:03,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:59" (1/1) ... [2018-07-24 03:40:03,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 03:40:03,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 03:40:03,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 03:40:03,339 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 03:40:03,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:59" (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 03:40:03,411 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 03:40:03,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 03:40:03,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 03:40:25,678 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 03:40:25,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 03:40:25 BoogieIcfgContainer [2018-07-24 03:40:25,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 03:40:25,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 03:40:25,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 03:40:25,684 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 03:40:25,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 03:39:55" (1/3) ... [2018-07-24 03:40:25,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@596fe722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 03:40:25, skipping insertion in model container [2018-07-24 03:40:25,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:39:59" (2/3) ... [2018-07-24 03:40:25,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@596fe722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 03:40:25, skipping insertion in model container [2018-07-24 03:40:25,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 03:40:25" (3/3) ... [2018-07-24 03:40:25,688 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label54_true-unreach-call.c [2018-07-24 03:40:25,696 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 03:40:25,706 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 03:40:25,776 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 03:40:25,777 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 03:40:25,777 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 03:40:25,777 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 03:40:25,777 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 03:40:25,777 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 03:40:25,777 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 03:40:25,778 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 03:40:25,778 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 03:40:25,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-07-24 03:40:25,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-07-24 03:40:25,845 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:40:25,847 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:40:25,847 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:40:25,853 INFO L82 PathProgramCache]: Analyzing trace with hash -2101344302, now seen corresponding path program 1 times [2018-07-24 03:40:25,855 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:40:25,855 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:40:25,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:40:25,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:40:25,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:40:25,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:40:26,476 WARN L169 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 18 [2018-07-24 03:40:26,853 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 03:40:26,856 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 03:40:26,856 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 03:40:26,861 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 03:40:26,877 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 03:40:26,878 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-24 03:40:26,881 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 6 states. [2018-07-24 03:41:15,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:41:15,225 INFO L93 Difference]: Finished difference Result 9077 states and 17599 transitions. [2018-07-24 03:41:15,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 03:41:15,228 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2018-07-24 03:41:15,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:41:15,298 INFO L225 Difference]: With dead ends: 9077 [2018-07-24 03:41:15,298 INFO L226 Difference]: Without dead ends: 7315 [2018-07-24 03:41:15,311 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-07-24 03:41:15,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7315 states. [2018-07-24 03:41:15,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7315 to 5898. [2018-07-24 03:41:15,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5898 states. [2018-07-24 03:41:15,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5898 states to 5898 states and 8690 transitions. [2018-07-24 03:41:15,573 INFO L78 Accepts]: Start accepts. Automaton has 5898 states and 8690 transitions. Word has length 65 [2018-07-24 03:41:15,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:41:15,574 INFO L471 AbstractCegarLoop]: Abstraction has 5898 states and 8690 transitions. [2018-07-24 03:41:15,574 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 03:41:15,574 INFO L276 IsEmpty]: Start isEmpty. Operand 5898 states and 8690 transitions. [2018-07-24 03:41:15,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2018-07-24 03:41:15,587 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:41:15,588 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:41:15,589 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:41:15,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1341722408, now seen corresponding path program 1 times [2018-07-24 03:41:15,589 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:41:15,590 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:41:15,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:41:15,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:41:15,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:41:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:41:16,325 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-07-24 03:41:16,326 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 03:41:16,327 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 03:41:16,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:41:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:41:16,535 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 03:41:16,742 WARN L169 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-07-24 03:41:16,895 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 03:41:16,934 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 03:41:16,935 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 5 [2018-07-24 03:41:16,940 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 03:41:16,941 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 03:41:16,941 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-24 03:41:16,942 INFO L87 Difference]: Start difference. First operand 5898 states and 8690 transitions. Second operand 5 states. [2018-07-24 03:42:05,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:42:05,991 INFO L93 Difference]: Finished difference Result 24240 states and 39207 transitions. [2018-07-24 03:42:05,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 03:42:05,992 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 301 [2018-07-24 03:42:05,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:42:06,063 INFO L225 Difference]: With dead ends: 24240 [2018-07-24 03:42:06,064 INFO L226 Difference]: Without dead ends: 14241 [2018-07-24 03:42:06,078 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-24 03:42:06,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14241 states. [2018-07-24 03:42:06,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14241 to 11471. [2018-07-24 03:42:06,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11471 states. [2018-07-24 03:42:06,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11471 states to 11471 states and 15056 transitions. [2018-07-24 03:42:06,311 INFO L78 Accepts]: Start accepts. Automaton has 11471 states and 15056 transitions. Word has length 301 [2018-07-24 03:42:06,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:42:06,312 INFO L471 AbstractCegarLoop]: Abstraction has 11471 states and 15056 transitions. [2018-07-24 03:42:06,312 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 03:42:06,312 INFO L276 IsEmpty]: Start isEmpty. Operand 11471 states and 15056 transitions. [2018-07-24 03:42:06,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2018-07-24 03:42:06,326 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:42:06,327 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:42:06,327 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:42:06,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1357005909, now seen corresponding path program 1 times [2018-07-24 03:42:06,328 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:42:06,328 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:42:06,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:42:06,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:42:06,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:42:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:42:07,723 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 03:42:07,724 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 03:42:07,726 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 03:42:07,727 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 03:42:07,727 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 03:42:07,728 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:42:07,728 INFO L87 Difference]: Start difference. First operand 11471 states and 15056 transitions. Second operand 4 states. [2018-07-24 03:42:23,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:42:23,627 INFO L93 Difference]: Finished difference Result 34018 states and 44586 transitions. [2018-07-24 03:42:23,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 03:42:23,636 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 612 [2018-07-24 03:42:23,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:42:23,698 INFO L225 Difference]: With dead ends: 34018 [2018-07-24 03:42:23,698 INFO L226 Difference]: Without dead ends: 22549 [2018-07-24 03:42:23,716 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 3 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 03:42:23,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22549 states. [2018-07-24 03:42:24,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22549 to 21071. [2018-07-24 03:42:24,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21071 states. [2018-07-24 03:42:24,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21071 states to 21071 states and 26602 transitions. [2018-07-24 03:42:24,076 INFO L78 Accepts]: Start accepts. Automaton has 21071 states and 26602 transitions. Word has length 612 [2018-07-24 03:42:24,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:42:24,078 INFO L471 AbstractCegarLoop]: Abstraction has 21071 states and 26602 transitions. [2018-07-24 03:42:24,078 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 03:42:24,078 INFO L276 IsEmpty]: Start isEmpty. Operand 21071 states and 26602 transitions. [2018-07-24 03:42:24,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2018-07-24 03:42:24,101 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:42:24,101 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-07-24 03:42:24,102 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:42:24,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1981856513, now seen corresponding path program 1 times [2018-07-24 03:42:24,102 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:42:24,102 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:42:24,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:42:24,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:42:24,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:42:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:42:25,534 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 256 proven. 4 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-07-24 03:42:25,535 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 03:42:25,535 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 03:42:25,543 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:42:25,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:42:25,779 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 03:42:26,019 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-07-24 03:42:26,040 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 03:42:26,040 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-07-24 03:42:26,042 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 03:42:26,042 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 03:42:26,042 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:42:26,043 INFO L87 Difference]: Start difference. First operand 21071 states and 26602 transitions. Second operand 4 states. [2018-07-24 03:42:43,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:42:43,249 INFO L93 Difference]: Finished difference Result 76554 states and 98409 transitions. [2018-07-24 03:42:43,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 03:42:43,260 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 691 [2018-07-24 03:42:43,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:42:43,369 INFO L225 Difference]: With dead ends: 76554 [2018-07-24 03:42:43,369 INFO L226 Difference]: Without dead ends: 56851 [2018-07-24 03:42:43,396 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 691 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 03:42:43,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56851 states. [2018-07-24 03:42:43,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56851 to 37454. [2018-07-24 03:42:43,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37454 states. [2018-07-24 03:42:44,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37454 states to 37454 states and 46784 transitions. [2018-07-24 03:42:44,000 INFO L78 Accepts]: Start accepts. Automaton has 37454 states and 46784 transitions. Word has length 691 [2018-07-24 03:42:44,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:42:44,002 INFO L471 AbstractCegarLoop]: Abstraction has 37454 states and 46784 transitions. [2018-07-24 03:42:44,002 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 03:42:44,002 INFO L276 IsEmpty]: Start isEmpty. Operand 37454 states and 46784 transitions. [2018-07-24 03:42:44,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 717 [2018-07-24 03:42:44,028 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:42:44,029 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:42:44,029 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:42:44,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1416070291, now seen corresponding path program 1 times [2018-07-24 03:42:44,030 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:42:44,030 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:42:44,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:42:44,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:42:44,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:42:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:42:44,884 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-07-24 03:42:44,884 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 03:42:44,885 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 03:42:44,886 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 03:42:44,886 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 03:42:44,886 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:42:44,887 INFO L87 Difference]: Start difference. First operand 37454 states and 46784 transitions. Second operand 4 states. [2018-07-24 03:43:01,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:43:01,024 INFO L93 Difference]: Finished difference Result 83221 states and 104447 transitions. [2018-07-24 03:43:01,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 03:43:01,025 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 716 [2018-07-24 03:43:01,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:43:01,140 INFO L225 Difference]: With dead ends: 83221 [2018-07-24 03:43:01,140 INFO L226 Difference]: Without dead ends: 44402 [2018-07-24 03:43:01,190 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 03:43:01,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44402 states. [2018-07-24 03:43:01,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44402 to 44287. [2018-07-24 03:43:01,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44287 states. [2018-07-24 03:43:01,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44287 states to 44287 states and 54084 transitions. [2018-07-24 03:43:01,790 INFO L78 Accepts]: Start accepts. Automaton has 44287 states and 54084 transitions. Word has length 716 [2018-07-24 03:43:01,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:43:01,792 INFO L471 AbstractCegarLoop]: Abstraction has 44287 states and 54084 transitions. [2018-07-24 03:43:01,792 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 03:43:01,792 INFO L276 IsEmpty]: Start isEmpty. Operand 44287 states and 54084 transitions. [2018-07-24 03:43:01,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 737 [2018-07-24 03:43:01,821 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:43:01,822 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:43:01,822 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:43:01,823 INFO L82 PathProgramCache]: Analyzing trace with hash 711929382, now seen corresponding path program 1 times [2018-07-24 03:43:01,823 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:43:01,823 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:43:01,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:43:01,824 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:43:01,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:43:01,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:43:03,562 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 125 proven. 72 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-07-24 03:43:03,562 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 03:43:03,562 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 03:43:03,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:43:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:43:03,810 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 03:43:04,261 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2018-07-24 03:43:04,282 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 03:43:04,282 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-07-24 03:43:04,283 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 03:43:04,284 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 03:43:04,284 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 03:43:04,284 INFO L87 Difference]: Start difference. First operand 44287 states and 54084 transitions. Second operand 5 states. [2018-07-24 03:43:19,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:43:19,319 INFO L93 Difference]: Finished difference Result 158243 states and 194224 transitions. [2018-07-24 03:43:19,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 03:43:19,327 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 736 [2018-07-24 03:43:19,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:43:19,476 INFO L225 Difference]: With dead ends: 158243 [2018-07-24 03:43:19,476 INFO L226 Difference]: Without dead ends: 115324 [2018-07-24 03:43:19,512 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 740 GetRequests, 735 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 03:43:19,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115324 states. [2018-07-24 03:43:20,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115324 to 113953. [2018-07-24 03:43:20,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113953 states. [2018-07-24 03:43:20,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113953 states to 113953 states and 131954 transitions. [2018-07-24 03:43:20,717 INFO L78 Accepts]: Start accepts. Automaton has 113953 states and 131954 transitions. Word has length 736 [2018-07-24 03:43:20,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:43:20,718 INFO L471 AbstractCegarLoop]: Abstraction has 113953 states and 131954 transitions. [2018-07-24 03:43:20,718 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 03:43:20,718 INFO L276 IsEmpty]: Start isEmpty. Operand 113953 states and 131954 transitions. [2018-07-24 03:43:20,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 841 [2018-07-24 03:43:20,733 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:43:20,733 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:43:20,734 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:43:20,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1901703651, now seen corresponding path program 1 times [2018-07-24 03:43:20,734 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:43:20,734 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:43:20,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:43:20,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:43:20,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:43:20,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:43:22,346 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 256 proven. 65 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2018-07-24 03:43:22,347 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 03:43:22,347 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 03:43:22,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:43:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:43:22,613 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 03:43:23,070 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 483 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-07-24 03:43:23,103 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 03:43:23,104 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-07-24 03:43:23,105 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 03:43:23,106 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 03:43:23,106 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 03:43:23,106 INFO L87 Difference]: Start difference. First operand 113953 states and 131954 transitions. Second operand 5 states. [2018-07-24 03:43:44,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:43:44,500 INFO L93 Difference]: Finished difference Result 430349 states and 499212 transitions. [2018-07-24 03:43:44,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 03:43:44,501 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 840 [2018-07-24 03:43:44,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:43:44,846 INFO L225 Difference]: With dead ends: 430349 [2018-07-24 03:43:44,846 INFO L226 Difference]: Without dead ends: 317764 [2018-07-24 03:43:44,958 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 842 GetRequests, 839 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 03:43:45,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317764 states. [2018-07-24 03:43:47,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317764 to 232767. [2018-07-24 03:43:47,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232767 states. [2018-07-24 03:43:47,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232767 states to 232767 states and 253460 transitions. [2018-07-24 03:43:47,740 INFO L78 Accepts]: Start accepts. Automaton has 232767 states and 253460 transitions. Word has length 840 [2018-07-24 03:43:47,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:43:47,741 INFO L471 AbstractCegarLoop]: Abstraction has 232767 states and 253460 transitions. [2018-07-24 03:43:47,741 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 03:43:47,741 INFO L276 IsEmpty]: Start isEmpty. Operand 232767 states and 253460 transitions. [2018-07-24 03:43:47,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1054 [2018-07-24 03:43:47,768 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:43:47,769 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:43:47,769 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:43:47,770 INFO L82 PathProgramCache]: Analyzing trace with hash 554596688, now seen corresponding path program 1 times [2018-07-24 03:43:47,770 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:43:47,770 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:43:47,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:43:47,771 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:43:47,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:43:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:43:49,799 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 523 proven. 63 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-07-24 03:43:49,799 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 03:43:49,800 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 03:43:49,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:43:50,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:43:50,130 INFO L273 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2018-07-24 03:43:50,330 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-24 03:43:50,531 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 03:43:50,531 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 03:43:50,536 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 03:43:50,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 03:43:50 BoogieIcfgContainer [2018-07-24 03:43:50,537 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 03:43:50,538 INFO L168 Benchmark]: Toolchain (without parser) took 234800.32 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -536.9 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-07-24 03:43:50,540 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 03:43:50,540 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4227.88 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 212.9 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -120.1 MB). Peak memory consumption was 487.7 MB. Max. memory is 7.1 GB. [2018-07-24 03:43:50,541 INFO L168 Benchmark]: Boogie Procedure Inliner took 791.84 ms. Allocated memory is still 1.8 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 189.5 MB). Peak memory consumption was 189.5 MB. Max. memory is 7.1 GB. [2018-07-24 03:43:50,542 INFO L168 Benchmark]: Boogie Preprocessor took 2577.04 ms. Allocated memory was 1.8 GB in the beginning and 2.8 GB in the end (delta: 1.0 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 195.1 MB. Max. memory is 7.1 GB. [2018-07-24 03:43:50,543 INFO L168 Benchmark]: RCFGBuilder took 22341.06 ms. Allocated memory was 2.8 GB in the beginning and 3.1 GB in the end (delta: 287.3 MB). Free memory was 2.5 GB in the beginning and 2.2 GB in the end (delta: 291.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-07-24 03:43:50,546 INFO L168 Benchmark]: TraceAbstraction took 204856.85 ms. Allocated memory was 3.1 GB in the beginning and 4.0 GB in the end (delta: 896.0 MB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 223.0 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-07-24 03:43:50,554 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 4227.88 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 212.9 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -120.1 MB). Peak memory consumption was 487.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 791.84 ms. Allocated memory is still 1.8 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 189.5 MB). Peak memory consumption was 189.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 2577.04 ms. Allocated memory was 1.8 GB in the beginning and 2.8 GB in the end (delta: 1.0 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 195.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 22341.06 ms. Allocated memory was 2.8 GB in the beginning and 3.1 GB in the end (delta: 287.3 MB). Free memory was 2.5 GB in the beginning and 2.2 GB in the end (delta: 291.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 204856.85 ms. Allocated memory was 3.1 GB in the beginning and 4.0 GB in the end (delta: 896.0 MB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 223.0 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 208]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 208). Cancelled while BasicCegarLoop was analyzing trace of length 1054 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 7 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 204.7s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 184.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8423 SDtfs, 36219 SDslu, 3035 SDs, 0 SdLazy, 73714 SolverSat, 22186 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 157.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2602 GetRequests, 2573 SyntacticMatches, 6 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=232767occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 6.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 111545 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 6529 NumberOfCodeBlocks, 6529 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 6518 ConstructedInterpolants, 0 QuantifiedInterpolants, 11331132 SizeOfPredicates, 7 NumberOfNonLiveVariables, 2975 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 3055/3201 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_label54_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_03-43-50-582.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label54_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_03-43-50-582.csv Completed graceful shutdown