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/loops/verisec_OpenSER__cases1_stripFullBoth_arr_false-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 23:29:18,526 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 23:29:18,528 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 23:29:18,549 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 23:29:18,550 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 23:29:18,551 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 23:29:18,552 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 23:29:18,556 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 23:29:18,559 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 23:29:18,560 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 23:29:18,567 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 23:29:18,567 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 23:29:18,572 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 23:29:18,573 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 23:29:18,576 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 23:29:18,577 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 23:29:18,578 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 23:29:18,582 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 23:29:18,586 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 23:29:18,587 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 23:29:18,588 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 23:29:18,592 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 23:29:18,596 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-23 23:29:18,613 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 [2018-07-23 23:29:18,645 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 23:29:18,646 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 23:29:18,646 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 23:29:18,646 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-23 23:29:18,647 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-23 23:29:18,647 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-23 23:29:18,647 INFO L133 SettingsManager]: * Use SBE=true [2018-07-23 23:29:18,648 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 23:29:18,648 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 23:29:18,648 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 23:29:18,649 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 23:29:18,649 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 23:29:18,649 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 23:29:18,650 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 23:29:18,650 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 23:29:18,650 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 23:29:18,650 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 23:29:18,650 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 23:29:18,651 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 23:29:18,651 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 23:29:18,651 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 23:29:18,651 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 23:29:18,651 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 23:29:18,652 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-23 23:29:18,652 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 23:29:18,652 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 23:29:18,652 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 23:29:18,653 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 23:29:18,701 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 23:29:18,719 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 23:29:18,723 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 23:29:18,727 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 23:29:18,728 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 23:29:18,729 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/verisec_OpenSER__cases1_stripFullBoth_arr_false-unreach-call_true-termination.i [2018-07-23 23:29:19,065 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01942f5a3/f4084825432b403f8ed6576107a6acf1/FLAGa8f2cfd7c [2018-07-23 23:29:19,273 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 23:29:19,274 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/verisec_OpenSER__cases1_stripFullBoth_arr_false-unreach-call_true-termination.i [2018-07-23 23:29:19,287 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01942f5a3/f4084825432b403f8ed6576107a6acf1/FLAGa8f2cfd7c [2018-07-23 23:29:19,311 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01942f5a3/f4084825432b403f8ed6576107a6acf1 [2018-07-23 23:29:19,325 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 23:29:19,327 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 23:29:19,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 23:29:19,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 23:29:19,337 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 23:29:19,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 11:29:19" (1/1) ... [2018-07-23 23:29:19,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22c72959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:19, skipping insertion in model container [2018-07-23 23:29:19,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 11:29:19" (1/1) ... [2018-07-23 23:29:19,515 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 23:29:19,584 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 23:29:19,629 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 23:29:19,673 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 23:29:19,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:19 WrapperNode [2018-07-23 23:29:19,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 23:29:19,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 23:29:19,726 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 23:29:19,727 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 23:29:19,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:19" (1/1) ... [2018-07-23 23:29:19,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:19" (1/1) ... [2018-07-23 23:29:19,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 23:29:19,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 23:29:19,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 23:29:19,787 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 23:29:19,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:19" (1/1) ... [2018-07-23 23:29:19,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:19" (1/1) ... [2018-07-23 23:29:19,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:19" (1/1) ... [2018-07-23 23:29:19,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:19" (1/1) ... [2018-07-23 23:29:19,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:19" (1/1) ... [2018-07-23 23:29:19,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:19" (1/1) ... [2018-07-23 23:29:19,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:19" (1/1) ... [2018-07-23 23:29:19,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 23:29:19,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 23:29:19,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 23:29:19,846 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 23:29:19,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:19" (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 [2018-07-23 23:29:19,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-07-23 23:29:19,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-07-23 23:29:19,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-07-23 23:29:19,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 23:29:19,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 23:29:19,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-07-23 23:29:20,607 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 23:29:20,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 11:29:20 BoogieIcfgContainer [2018-07-23 23:29:20,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 23:29:20,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 23:29:20,609 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 23:29:20,612 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 23:29:20,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 11:29:19" (1/3) ... [2018-07-23 23:29:20,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b59fab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 11:29:20, skipping insertion in model container [2018-07-23 23:29:20,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:19" (2/3) ... [2018-07-23 23:29:20,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b59fab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 11:29:20, skipping insertion in model container [2018-07-23 23:29:20,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 11:29:20" (3/3) ... [2018-07-23 23:29:20,616 INFO L112 eAbstractionObserver]: Analyzing ICFG verisec_OpenSER__cases1_stripFullBoth_arr_false-unreach-call_true-termination.i [2018-07-23 23:29:20,626 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 23:29:20,636 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 23:29:20,696 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 23:29:20,697 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 23:29:20,697 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 23:29:20,697 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 23:29:20,697 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 23:29:20,698 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 23:29:20,698 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 23:29:20,698 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 23:29:20,698 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 23:29:20,719 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-07-23 23:29:20,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-07-23 23:29:20,726 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:29:20,727 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] [2018-07-23 23:29:20,727 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:29:20,732 INFO L82 PathProgramCache]: Analyzing trace with hash -763446896, now seen corresponding path program 1 times [2018-07-23 23:29:20,734 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:29:20,735 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:29:20,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:20,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:20,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:20,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:29:20,882 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:29:20,883 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-23 23:29:20,887 INFO L450 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-07-23 23:29:20,902 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-07-23 23:29:20,903 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-23 23:29:20,906 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 2 states. [2018-07-23 23:29:20,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:29:20,927 INFO L93 Difference]: Finished difference Result 109 states and 138 transitions. [2018-07-23 23:29:20,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-23 23:29:20,928 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-07-23 23:29:20,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:29:20,939 INFO L225 Difference]: With dead ends: 109 [2018-07-23 23:29:20,939 INFO L226 Difference]: Without dead ends: 46 [2018-07-23 23:29:20,943 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-23 23:29:20,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-07-23 23:29:20,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-07-23 23:29:20,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-07-23 23:29:20,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2018-07-23 23:29:20,983 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 22 [2018-07-23 23:29:20,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:29:20,984 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2018-07-23 23:29:20,984 INFO L472 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-07-23 23:29:20,984 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2018-07-23 23:29:20,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-07-23 23:29:20,985 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:29:20,986 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] [2018-07-23 23:29:20,986 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:29:20,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1942197264, now seen corresponding path program 1 times [2018-07-23 23:29:20,986 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:29:20,987 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:29:20,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:20,988 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:20,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:21,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:29:21,081 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:29:21,082 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 23:29:21,087 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 23:29:21,088 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 23:29:21,088 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 23:29:21,088 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand 3 states. [2018-07-23 23:29:21,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:29:21,184 INFO L93 Difference]: Finished difference Result 86 states and 105 transitions. [2018-07-23 23:29:21,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 23:29:21,185 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2018-07-23 23:29:21,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:29:21,186 INFO L225 Difference]: With dead ends: 86 [2018-07-23 23:29:21,186 INFO L226 Difference]: Without dead ends: 47 [2018-07-23 23:29:21,188 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 23:29:21,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-07-23 23:29:21,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-07-23 23:29:21,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-07-23 23:29:21,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 56 transitions. [2018-07-23 23:29:21,195 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 56 transitions. Word has length 29 [2018-07-23 23:29:21,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:29:21,195 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 56 transitions. [2018-07-23 23:29:21,195 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 23:29:21,195 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2018-07-23 23:29:21,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-07-23 23:29:21,197 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:29:21,197 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] [2018-07-23 23:29:21,197 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:29:21,197 INFO L82 PathProgramCache]: Analyzing trace with hash -2106149261, now seen corresponding path program 1 times [2018-07-23 23:29:21,197 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:29:21,198 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:29:21,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:21,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:21,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:21,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:29:21,276 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:29:21,276 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 23:29:21,276 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 23:29:21,277 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 23:29:21,277 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 23:29:21,277 INFO L87 Difference]: Start difference. First operand 47 states and 56 transitions. Second operand 3 states. [2018-07-23 23:29:21,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:29:21,360 INFO L93 Difference]: Finished difference Result 88 states and 107 transitions. [2018-07-23 23:29:21,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 23:29:21,361 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-07-23 23:29:21,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:29:21,362 INFO L225 Difference]: With dead ends: 88 [2018-07-23 23:29:21,362 INFO L226 Difference]: Without dead ends: 48 [2018-07-23 23:29:21,365 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 23:29:21,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-07-23 23:29:21,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-07-23 23:29:21,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-07-23 23:29:21,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2018-07-23 23:29:21,373 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 31 [2018-07-23 23:29:21,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:29:21,375 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2018-07-23 23:29:21,375 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 23:29:21,376 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2018-07-23 23:29:21,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-07-23 23:29:21,377 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:29:21,377 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] [2018-07-23 23:29:21,377 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:29:21,377 INFO L82 PathProgramCache]: Analyzing trace with hash -2106089679, now seen corresponding path program 1 times [2018-07-23 23:29:21,378 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:29:21,378 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:29:21,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:21,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:21,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:21,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:29:21,678 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:29:21,678 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 23:29:21,679 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 23:29:21,679 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 23:29:21,680 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-23 23:29:21,680 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand 6 states. [2018-07-23 23:29:22,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:29:22,104 INFO L93 Difference]: Finished difference Result 163 states and 198 transitions. [2018-07-23 23:29:22,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-23 23:29:22,105 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-07-23 23:29:22,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:29:22,107 INFO L225 Difference]: With dead ends: 163 [2018-07-23 23:29:22,108 INFO L226 Difference]: Without dead ends: 93 [2018-07-23 23:29:22,109 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-07-23 23:29:22,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-07-23 23:29:22,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 61. [2018-07-23 23:29:22,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-07-23 23:29:22,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 71 transitions. [2018-07-23 23:29:22,117 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 71 transitions. Word has length 31 [2018-07-23 23:29:22,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:29:22,117 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 71 transitions. [2018-07-23 23:29:22,118 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 23:29:22,118 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 71 transitions. [2018-07-23 23:29:22,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-07-23 23:29:22,119 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:29:22,119 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] [2018-07-23 23:29:22,119 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:29:22,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1847924241, now seen corresponding path program 1 times [2018-07-23 23:29:22,120 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:29:22,120 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:29:22,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:22,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:22,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:22,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:29:22,253 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:29:22,253 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 23:29:22,253 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 23:29:22,253 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 23:29:22,254 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-23 23:29:22,254 INFO L87 Difference]: Start difference. First operand 61 states and 71 transitions. Second operand 5 states. [2018-07-23 23:29:22,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:29:22,593 INFO L93 Difference]: Finished difference Result 142 states and 170 transitions. [2018-07-23 23:29:22,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 23:29:22,593 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-07-23 23:29:22,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:29:22,597 INFO L225 Difference]: With dead ends: 142 [2018-07-23 23:29:22,598 INFO L226 Difference]: Without dead ends: 74 [2018-07-23 23:29:22,600 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-23 23:29:22,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-07-23 23:29:22,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 52. [2018-07-23 23:29:22,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-07-23 23:29:22,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 61 transitions. [2018-07-23 23:29:22,616 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 61 transitions. Word has length 31 [2018-07-23 23:29:22,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:29:22,617 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 61 transitions. [2018-07-23 23:29:22,617 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 23:29:22,617 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2018-07-23 23:29:22,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-07-23 23:29:22,622 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:29:22,623 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 23:29:22,623 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:29:22,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1715606394, now seen corresponding path program 1 times [2018-07-23 23:29:22,623 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:29:22,624 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:29:22,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:22,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:22,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:23,003 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-23 23:29:23,004 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:29:23,004 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-23 23:29:23,004 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 23:29:23,005 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 23:29:23,005 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-07-23 23:29:23,007 INFO L87 Difference]: Start difference. First operand 52 states and 61 transitions. Second operand 7 states. [2018-07-23 23:29:23,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:29:23,415 INFO L93 Difference]: Finished difference Result 185 states and 225 transitions. [2018-07-23 23:29:23,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 23:29:23,416 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2018-07-23 23:29:23,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:29:23,417 INFO L225 Difference]: With dead ends: 185 [2018-07-23 23:29:23,417 INFO L226 Difference]: Without dead ends: 127 [2018-07-23 23:29:23,418 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-07-23 23:29:23,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-07-23 23:29:23,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 89. [2018-07-23 23:29:23,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-07-23 23:29:23,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 107 transitions. [2018-07-23 23:29:23,429 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 107 transitions. Word has length 38 [2018-07-23 23:29:23,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:29:23,431 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 107 transitions. [2018-07-23 23:29:23,431 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 23:29:23,431 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 107 transitions. [2018-07-23 23:29:23,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-07-23 23:29:23,432 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:29:23,433 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 23:29:23,433 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:29:23,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1973771832, now seen corresponding path program 1 times [2018-07-23 23:29:23,436 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:29:23,436 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:29:23,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:23,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:23,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:23,708 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-23 23:29:23,709 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:29:23,709 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 23:29:23,709 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 23:29:23,709 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 23:29:23,710 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-23 23:29:23,710 INFO L87 Difference]: Start difference. First operand 89 states and 107 transitions. Second operand 6 states. [2018-07-23 23:29:23,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:29:23,993 INFO L93 Difference]: Finished difference Result 172 states and 209 transitions. [2018-07-23 23:29:23,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 23:29:23,993 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2018-07-23 23:29:23,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:29:23,996 INFO L225 Difference]: With dead ends: 172 [2018-07-23 23:29:23,996 INFO L226 Difference]: Without dead ends: 170 [2018-07-23 23:29:23,997 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-07-23 23:29:23,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-07-23 23:29:24,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 118. [2018-07-23 23:29:24,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-07-23 23:29:24,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 144 transitions. [2018-07-23 23:29:24,017 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 144 transitions. Word has length 38 [2018-07-23 23:29:24,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:29:24,017 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 144 transitions. [2018-07-23 23:29:24,019 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 23:29:24,021 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 144 transitions. [2018-07-23 23:29:24,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-07-23 23:29:24,023 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:29:24,023 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 23:29:24,023 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:29:24,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1212099776, now seen corresponding path program 1 times [2018-07-23 23:29:24,024 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:29:24,024 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:29:24,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:24,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:24,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:24,088 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-23 23:29:24,088 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:29:24,089 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 23:29:24,089 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 23:29:24,089 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 23:29:24,089 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 23:29:24,090 INFO L87 Difference]: Start difference. First operand 118 states and 144 transitions. Second operand 4 states. [2018-07-23 23:29:24,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:29:24,157 INFO L93 Difference]: Finished difference Result 175 states and 216 transitions. [2018-07-23 23:29:24,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 23:29:24,158 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2018-07-23 23:29:24,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:29:24,159 INFO L225 Difference]: With dead ends: 175 [2018-07-23 23:29:24,159 INFO L226 Difference]: Without dead ends: 126 [2018-07-23 23:29:24,159 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-23 23:29:24,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-07-23 23:29:24,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2018-07-23 23:29:24,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-07-23 23:29:24,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 152 transitions. [2018-07-23 23:29:24,168 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 152 transitions. Word has length 42 [2018-07-23 23:29:24,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:29:24,169 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 152 transitions. [2018-07-23 23:29:24,169 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 23:29:24,169 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 152 transitions. [2018-07-23 23:29:24,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-07-23 23:29:24,171 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:29:24,171 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 23:29:24,172 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:29:24,172 INFO L82 PathProgramCache]: Analyzing trace with hash 988961475, now seen corresponding path program 1 times [2018-07-23 23:29:24,172 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:29:24,172 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:29:24,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:24,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:24,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:24,232 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-23 23:29:24,233 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:29:24,234 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 23:29:24,234 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 23:29:24,234 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 23:29:24,235 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-23 23:29:24,235 INFO L87 Difference]: Start difference. First operand 126 states and 152 transitions. Second operand 5 states. [2018-07-23 23:29:24,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:29:24,354 INFO L93 Difference]: Finished difference Result 211 states and 256 transitions. [2018-07-23 23:29:24,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-23 23:29:24,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2018-07-23 23:29:24,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:29:24,357 INFO L225 Difference]: With dead ends: 211 [2018-07-23 23:29:24,358 INFO L226 Difference]: Without dead ends: 165 [2018-07-23 23:29:24,358 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-23 23:29:24,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-07-23 23:29:24,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 132. [2018-07-23 23:29:24,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-07-23 23:29:24,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 160 transitions. [2018-07-23 23:29:24,367 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 160 transitions. Word has length 44 [2018-07-23 23:29:24,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:29:24,367 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 160 transitions. [2018-07-23 23:29:24,367 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 23:29:24,367 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 160 transitions. [2018-07-23 23:29:24,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-07-23 23:29:24,368 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:29:24,369 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 23:29:24,369 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:29:24,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1680143458, now seen corresponding path program 1 times [2018-07-23 23:29:24,369 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:29:24,369 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:29:24,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:24,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:24,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:24,592 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:29:24,593 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:29:24,593 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 [2018-07-23 23:29:24,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:24,656 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:29:24,811 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:29:24,833 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:29:24,833 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2018-07-23 23:29:24,834 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 23:29:24,834 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 23:29:24,834 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-07-23 23:29:24,834 INFO L87 Difference]: Start difference. First operand 132 states and 160 transitions. Second operand 8 states. [2018-07-23 23:29:25,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:29:25,064 INFO L93 Difference]: Finished difference Result 283 states and 344 transitions. [2018-07-23 23:29:25,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 23:29:25,066 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2018-07-23 23:29:25,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:29:25,067 INFO L225 Difference]: With dead ends: 283 [2018-07-23 23:29:25,067 INFO L226 Difference]: Without dead ends: 176 [2018-07-23 23:29:25,068 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-07-23 23:29:25,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-07-23 23:29:25,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 138. [2018-07-23 23:29:25,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-07-23 23:29:25,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 162 transitions. [2018-07-23 23:29:25,076 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 162 transitions. Word has length 46 [2018-07-23 23:29:25,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:29:25,076 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 162 transitions. [2018-07-23 23:29:25,076 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-23 23:29:25,077 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 162 transitions. [2018-07-23 23:29:25,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-07-23 23:29:25,078 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:29:25,078 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 23:29:25,078 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:29:25,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1640217351, now seen corresponding path program 2 times [2018-07-23 23:29:25,079 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:29:25,079 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:29:25,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:25,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:25,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:25,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:25,663 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:29:25,663 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:29:25,663 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 [2018-07-23 23:29:25,673 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-23 23:29:25,710 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-23 23:29:25,711 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:29:25,717 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:29:26,080 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:29:26,101 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:29:26,102 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2018-07-23 23:29:26,102 INFO L450 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-07-23 23:29:26,102 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-07-23 23:29:26,102 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2018-07-23 23:29:26,103 INFO L87 Difference]: Start difference. First operand 138 states and 162 transitions. Second operand 16 states. [2018-07-23 23:29:26,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:29:26,646 INFO L93 Difference]: Finished difference Result 310 states and 364 transitions. [2018-07-23 23:29:26,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-23 23:29:26,652 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 53 [2018-07-23 23:29:26,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:29:26,655 INFO L225 Difference]: With dead ends: 310 [2018-07-23 23:29:26,656 INFO L226 Difference]: Without dead ends: 242 [2018-07-23 23:29:26,656 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2018-07-23 23:29:26,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2018-07-23 23:29:26,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 184. [2018-07-23 23:29:26,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2018-07-23 23:29:26,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 216 transitions. [2018-07-23 23:29:26,665 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 216 transitions. Word has length 53 [2018-07-23 23:29:26,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:29:26,666 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 216 transitions. [2018-07-23 23:29:26,666 INFO L472 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-07-23 23:29:26,666 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 216 transitions. [2018-07-23 23:29:26,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-07-23 23:29:26,667 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:29:26,668 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 23:29:26,668 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:29:26,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1640157769, now seen corresponding path program 1 times [2018-07-23 23:29:26,668 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:29:26,668 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:29:26,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:26,669 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 23:29:26,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:26,801 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:29:26,802 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:29:26,802 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 [2018-07-23 23:29:26,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:26,843 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:29:26,999 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:29:27,021 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:29:27,022 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2018-07-23 23:29:27,022 INFO L450 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-07-23 23:29:27,023 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-07-23 23:29:27,023 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-07-23 23:29:27,023 INFO L87 Difference]: Start difference. First operand 184 states and 216 transitions. Second operand 15 states. [2018-07-23 23:29:27,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:29:27,764 INFO L93 Difference]: Finished difference Result 285 states and 332 transitions. [2018-07-23 23:29:27,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-23 23:29:27,766 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 53 [2018-07-23 23:29:27,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:29:27,768 INFO L225 Difference]: With dead ends: 285 [2018-07-23 23:29:27,768 INFO L226 Difference]: Without dead ends: 283 [2018-07-23 23:29:27,769 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=374, Unknown=0, NotChecked=0, Total=506 [2018-07-23 23:29:27,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2018-07-23 23:29:27,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 182. [2018-07-23 23:29:27,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-07-23 23:29:27,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 214 transitions. [2018-07-23 23:29:27,776 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 214 transitions. Word has length 53 [2018-07-23 23:29:27,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:29:27,776 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 214 transitions. [2018-07-23 23:29:27,777 INFO L472 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-07-23 23:29:27,777 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 214 transitions. [2018-07-23 23:29:27,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-07-23 23:29:27,777 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:29:27,778 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 23:29:27,778 INFO L414 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:29:27,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1837101495, now seen corresponding path program 1 times [2018-07-23 23:29:27,778 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:29:27,778 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:29:27,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:27,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:27,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:27,940 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:29:27,940 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:29:27,940 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 [2018-07-23 23:29:27,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:27,982 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:29:28,262 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:29:28,283 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:29:28,284 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2018-07-23 23:29:28,284 INFO L450 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-07-23 23:29:28,286 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-07-23 23:29:28,286 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2018-07-23 23:29:28,286 INFO L87 Difference]: Start difference. First operand 182 states and 214 transitions. Second operand 15 states. [2018-07-23 23:29:29,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:29:29,078 INFO L93 Difference]: Finished difference Result 309 states and 362 transitions. [2018-07-23 23:29:29,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-23 23:29:29,078 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 53 [2018-07-23 23:29:29,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:29:29,080 INFO L225 Difference]: With dead ends: 309 [2018-07-23 23:29:29,080 INFO L226 Difference]: Without dead ends: 307 [2018-07-23 23:29:29,081 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2018-07-23 23:29:29,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2018-07-23 23:29:29,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 212. [2018-07-23 23:29:29,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2018-07-23 23:29:29,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 251 transitions. [2018-07-23 23:29:29,089 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 251 transitions. Word has length 53 [2018-07-23 23:29:29,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:29:29,089 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 251 transitions. [2018-07-23 23:29:29,089 INFO L472 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-07-23 23:29:29,089 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 251 transitions. [2018-07-23 23:29:29,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-07-23 23:29:29,090 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:29:29,090 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 23:29:29,091 INFO L414 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:29:29,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1837161077, now seen corresponding path program 1 times [2018-07-23 23:29:29,091 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:29:29,091 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:29:29,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:29,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:29,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:29,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-23 23:29:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-23 23:29:29,144 INFO L419 BasicCegarLoop]: Counterexample might be feasible [2018-07-23 23:29:29,185 WARN L1215 BoogieBacktranslator]: unknown boogie variable r_strncpy_#in~src [2018-07-23 23:29:29,188 WARN L1215 BoogieBacktranslator]: unknown boogie variable r_strncpy_#in~src [2018-07-23 23:29:29,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 11:29:29 BoogieIcfgContainer [2018-07-23 23:29:29,208 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 23:29:29,208 INFO L168 Benchmark]: Toolchain (without parser) took 9882.72 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 874.0 MB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -928.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 23:29:29,210 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-07-23 23:29:29,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 23:29:29,212 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.75 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 23:29:29,212 INFO L168 Benchmark]: Boogie Preprocessor took 59.03 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 23:29:29,213 INFO L168 Benchmark]: RCFGBuilder took 762.00 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -773.3 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2018-07-23 23:29:29,214 INFO L168 Benchmark]: TraceAbstraction took 8599.21 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 132.6 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -166.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 23:29:29,218 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 396.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.75 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.03 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 762.00 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -773.3 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8599.21 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 132.6 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -166.0 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable r_strncpy_#in~src - GenericResult: Unfinished Backtranslation unknown boogie variable r_strncpy_#in~src * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L75] FCALL char A [2 + 2 + 4 +1]; [L76] FCALL A[2 + 2 + 4] = 0 [L77] CALL parse_expression_list (A) [L49] int start=0, i=-1, j=-1; [L49] int start=0, i=-1, j=-1; [L49] int start=0, i=-1, j=-1; [L50] FCALL char str2[2]; [L51] COND FALSE !(!str) [L53] i++ [L53] i++ [L54] FCALL str[i] [L55] case 0: [L55] COND FALSE !(case 0:) [L70] EXPR, FCALL str[i] [L70] COND TRUE str[i] != 0 [L53] i++ [L53] i++ [L54] FCALL str[i] [L55] case 0: [L55] COND FALSE !(case 0:) [L70] EXPR, FCALL str[i] [L70] COND TRUE str[i] != 0 [L53] i++ [L53] i++ [L54] FCALL str[i] [L55] case 0: [L55] COND TRUE case 0: [L56] EXPR, FCALL str[start] [L56] (str[start] == ' ') || (str[start] == '\t') [L56] COND FALSE !((str[start] == ' ') || (str[start] == '\t')) [L56] EXPR, FCALL str[start] [L56] (str[start] == ' ') || (str[start] == '\t') [L56] COND FALSE !((str[start] == ' ') || (str[start] == '\t')) [L57] EXPR, FCALL str[start] [L57] COND FALSE !(str[start] == '"') [L58] j = i-1 [L59] (0 < j) && ((str[j] == ' ') || (str[j] == '\t')) [L59] COND TRUE (0 < j) && ((str[j] == ' ') || (str[j] == '\t')) [L59] EXPR, FCALL str[j] [L59] EXPR (str[j] == ' ') || (str[j] == '\t') [L59] COND FALSE, EXPR !((str[j] == ' ') || (str[j] == '\t')) [L59] EXPR, FCALL str[j] [L59] EXPR (str[j] == ' ') || (str[j] == '\t') [L59] (0 < j) && ((str[j] == ' ') || (str[j] == '\t')) [L59] COND FALSE !((0 < j) && ((str[j] == ' ') || (str[j] == '\t'))) [L60] (0 < j) && (str[j] == '"') [L60] COND TRUE (0 < j) && (str[j] == '"') [L60] EXPR, FCALL str[j] [L60] (0 < j) && (str[j] == '"') [L60] COND FALSE !((0 < j) && (str[j] == '"')) [L61] COND TRUE start<=j [L62] FCALL r_strncpy(str2, str+start, j-start+1) [L63] CALL __VERIFIER_assert(j - start + 1 < 2) [L4] COND TRUE !(cond) VAL [r_strncpy_#in~src={36:0}] [L5] __VERIFIER_error() VAL [r_strncpy_#in~src={36:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 59 locations, 1 error locations. UNSAFE Result, 8.5s OverallTime, 14 OverallIterations, 3 TraceHistogramMax, 4.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 895 SDtfs, 1749 SDslu, 2764 SDs, 0 SdLazy, 1441 SolverSat, 204 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 315 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=212occurred in iteration=13, 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: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 469 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 769 NumberOfCodeBlocks, 769 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 699 ConstructedInterpolants, 0 QuantifiedInterpolants, 133950 SizeOfPredicates, 15 NumberOfNonLiveVariables, 461 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 17 InterpolantComputations, 9 PerfectInterpolantSequences, 16/114 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/verisec_OpenSER__cases1_stripFullBoth_arr_false-unreach-call_true-termination.i_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_23-29-29-230.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/verisec_OpenSER__cases1_stripFullBoth_arr_false-unreach-call_true-termination.i_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_23-29-29-230.csv Received shutdown request...