java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label24_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:49:15,899 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:49:15,901 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:49:15,913 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:49:15,913 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:49:15,914 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:49:15,915 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:49:15,917 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:49:15,919 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:49:15,920 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:49:15,921 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:49:15,921 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:49:15,922 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:49:15,923 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:49:15,924 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:49:15,925 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:49:15,926 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:49:15,928 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:49:15,930 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:49:15,931 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:49:15,932 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:49:15,934 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:49:15,936 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-18 11:49:15,945 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-18 11:49:15,972 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:49:15,972 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:49:15,973 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:49:15,973 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:49:15,974 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:49:15,974 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:49:15,974 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:49:15,974 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:49:15,974 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:49:15,975 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:49:15,975 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:49:15,975 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:49:15,976 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:49:15,976 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:49:15,976 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:49:15,977 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:49:15,978 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:49:15,978 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:49:15,978 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:49:15,978 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:49:15,979 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:49:15,980 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:49:15,980 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:49:15,980 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:49:15,980 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:49:15,981 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:49:15,981 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:49:15,981 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:49:15,981 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:49:15,982 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:49:15,982 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:49:15,982 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:49:15,983 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:49:15,983 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:49:16,055 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:49:16,070 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:49:16,079 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:49:16,081 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:49:16,081 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:49:16,082 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label24_true-unreach-call_false-termination.c [2018-09-18 11:49:16,443 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6ce6e502/29bb4f7b16364f48b5231be3bc4748a4/FLAG4ae4eee94 [2018-09-18 11:49:16,739 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:49:16,743 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label24_true-unreach-call_false-termination.c [2018-09-18 11:49:16,765 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6ce6e502/29bb4f7b16364f48b5231be3bc4748a4/FLAG4ae4eee94 [2018-09-18 11:49:16,781 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6ce6e502/29bb4f7b16364f48b5231be3bc4748a4 [2018-09-18 11:49:16,792 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:49:16,796 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:49:16,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:49:16,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:49:16,805 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:49:16,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:49:16" (1/1) ... [2018-09-18 11:49:16,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54315448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:16, skipping insertion in model container [2018-09-18 11:49:16,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:49:16" (1/1) ... [2018-09-18 11:49:16,823 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:49:17,411 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:49:17,431 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:49:17,529 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:49:17,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:17 WrapperNode [2018-09-18 11:49:17,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:49:17,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:49:17,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:49:17,577 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:49:17,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:17" (1/1) ... [2018-09-18 11:49:17,627 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:17" (1/1) ... [2018-09-18 11:49:17,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:49:17,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:49:17,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:49:17,712 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:49:17,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:17" (1/1) ... [2018-09-18 11:49:17,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:17" (1/1) ... [2018-09-18 11:49:17,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:17" (1/1) ... [2018-09-18 11:49:17,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:17" (1/1) ... [2018-09-18 11:49:17,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:17" (1/1) ... [2018-09-18 11:49:17,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:17" (1/1) ... [2018-09-18 11:49:17,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:17" (1/1) ... [2018-09-18 11:49:17,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:49:17,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:49:17,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:49:17,993 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:49:17,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:17" (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 [2018-09-18 11:49:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:49:18,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:49:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:49:18,066 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:49:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:49:18,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:49:18,067 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:49:18,067 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:49:21,662 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:49:21,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:49:21 BoogieIcfgContainer [2018-09-18 11:49:21,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:49:21,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:49:21,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:49:21,669 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:49:21,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:49:16" (1/3) ... [2018-09-18 11:49:21,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2958058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:49:21, skipping insertion in model container [2018-09-18 11:49:21,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:17" (2/3) ... [2018-09-18 11:49:21,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2958058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:49:21, skipping insertion in model container [2018-09-18 11:49:21,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:49:21" (3/3) ... [2018-09-18 11:49:21,673 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label24_true-unreach-call_false-termination.c [2018-09-18 11:49:21,681 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:49:21,690 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:49:21,742 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:49:21,743 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:49:21,743 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:49:21,743 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:49:21,743 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:49:21,743 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:49:21,744 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:49:21,744 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:49:21,744 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:49:21,778 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-09-18 11:49:21,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-18 11:49:21,787 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:49:21,788 INFO L376 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] [2018-09-18 11:49:21,789 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:49:21,795 INFO L82 PathProgramCache]: Analyzing trace with hash -364363092, now seen corresponding path program 1 times [2018-09-18 11:49:21,800 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:49:21,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:21,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:21,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:21,847 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:49:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:22,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:49:22,255 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:49:22,256 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 11:49:22,256 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:49:22,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:49:22,278 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:49:22,279 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:49:22,281 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-09-18 11:49:24,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:49:24,280 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-09-18 11:49:24,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:49:24,285 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-09-18 11:49:24,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:49:24,305 INFO L225 Difference]: With dead ends: 691 [2018-09-18 11:49:24,305 INFO L226 Difference]: Without dead ends: 434 [2018-09-18 11:49:24,314 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:49:24,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-09-18 11:49:24,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-09-18 11:49:24,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-09-18 11:49:24,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 765 transitions. [2018-09-18 11:49:24,400 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 765 transitions. Word has length 48 [2018-09-18 11:49:24,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:49:24,401 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 765 transitions. [2018-09-18 11:49:24,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:49:24,401 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 765 transitions. [2018-09-18 11:49:24,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-09-18 11:49:24,411 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:49:24,414 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:49:24,414 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:49:24,415 INFO L82 PathProgramCache]: Analyzing trace with hash 792460239, now seen corresponding path program 1 times [2018-09-18 11:49:24,415 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:49:24,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:24,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:24,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:24,418 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:49:24,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:24,730 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:49:24,731 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:49:24,731 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:49:24,731 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:49:24,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:49:24,734 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:49:24,734 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:49:24,734 INFO L87 Difference]: Start difference. First operand 434 states and 765 transitions. Second operand 6 states. [2018-09-18 11:49:26,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:49:26,722 INFO L93 Difference]: Finished difference Result 1062 states and 1897 transitions. [2018-09-18 11:49:26,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:49:26,723 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2018-09-18 11:49:26,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:49:26,731 INFO L225 Difference]: With dead ends: 1062 [2018-09-18 11:49:26,731 INFO L226 Difference]: Without dead ends: 634 [2018-09-18 11:49:26,735 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:49:26,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2018-09-18 11:49:26,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 625. [2018-09-18 11:49:26,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2018-09-18 11:49:26,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 1019 transitions. [2018-09-18 11:49:26,791 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 1019 transitions. Word has length 123 [2018-09-18 11:49:26,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:49:26,791 INFO L480 AbstractCegarLoop]: Abstraction has 625 states and 1019 transitions. [2018-09-18 11:49:26,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:49:26,792 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 1019 transitions. [2018-09-18 11:49:26,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-09-18 11:49:26,796 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:49:26,796 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:49:26,797 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:49:26,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1806555924, now seen corresponding path program 1 times [2018-09-18 11:49:26,797 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:49:26,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:26,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:26,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:26,799 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:49:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:27,001 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:49:27,002 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:49:27,002 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:49:27,002 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:49:27,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:49:27,003 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:49:27,003 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:49:27,004 INFO L87 Difference]: Start difference. First operand 625 states and 1019 transitions. Second operand 4 states. [2018-09-18 11:49:31,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:49:31,469 INFO L93 Difference]: Finished difference Result 2348 states and 3999 transitions. [2018-09-18 11:49:31,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:49:31,470 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 132 [2018-09-18 11:49:31,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:49:31,483 INFO L225 Difference]: With dead ends: 2348 [2018-09-18 11:49:31,483 INFO L226 Difference]: Without dead ends: 1729 [2018-09-18 11:49:31,489 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:49:31,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2018-09-18 11:49:31,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1729. [2018-09-18 11:49:31,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1729 states. [2018-09-18 11:49:31,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1729 states to 1729 states and 2669 transitions. [2018-09-18 11:49:31,547 INFO L78 Accepts]: Start accepts. Automaton has 1729 states and 2669 transitions. Word has length 132 [2018-09-18 11:49:31,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:49:31,548 INFO L480 AbstractCegarLoop]: Abstraction has 1729 states and 2669 transitions. [2018-09-18 11:49:31,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:49:31,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1729 states and 2669 transitions. [2018-09-18 11:49:31,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-09-18 11:49:31,556 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:49:31,557 INFO L376 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:49:31,557 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:49:31,557 INFO L82 PathProgramCache]: Analyzing trace with hash 38946104, now seen corresponding path program 1 times [2018-09-18 11:49:31,557 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:49:31,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:31,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:31,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:31,559 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:49:31,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:32,118 WARN L178 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 10 [2018-09-18 11:49:32,564 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 82 proven. 70 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:49:32,564 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:49:32,564 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 [2018-09-18 11:49:32,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:32,582 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:49:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:32,679 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:49:33,362 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-09-18 11:49:33,363 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:49:34,032 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-18 11:49:34,535 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 82 proven. 70 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:49:34,557 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:49:34,557 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 5] total 12 [2018-09-18 11:49:34,557 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:49:34,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:49:34,558 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:49:34,558 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:49:34,559 INFO L87 Difference]: Start difference. First operand 1729 states and 2669 transitions. Second operand 5 states. [2018-09-18 11:49:34,827 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-18 11:49:40,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:49:40,444 INFO L93 Difference]: Finished difference Result 4911 states and 7528 transitions. [2018-09-18 11:49:40,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:49:40,444 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 236 [2018-09-18 11:49:40,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:49:40,464 INFO L225 Difference]: With dead ends: 4911 [2018-09-18 11:49:40,464 INFO L226 Difference]: Without dead ends: 3188 [2018-09-18 11:49:40,475 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 467 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2018-09-18 11:49:40,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3188 states. [2018-09-18 11:49:40,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3188 to 3129. [2018-09-18 11:49:40,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3129 states. [2018-09-18 11:49:40,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 4631 transitions. [2018-09-18 11:49:40,568 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 4631 transitions. Word has length 236 [2018-09-18 11:49:40,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:49:40,568 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 4631 transitions. [2018-09-18 11:49:40,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:49:40,569 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 4631 transitions. [2018-09-18 11:49:40,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2018-09-18 11:49:40,582 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:49:40,583 INFO L376 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:49:40,583 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:49:40,584 INFO L82 PathProgramCache]: Analyzing trace with hash 142855015, now seen corresponding path program 1 times [2018-09-18 11:49:40,584 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:49:40,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:40,585 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:40,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:40,585 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:49:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:41,594 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 211 proven. 142 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:49:41,595 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:49:41,595 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 [2018-09-18 11:49:41,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:41,605 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:49:41,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:41,708 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:49:42,127 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 263 proven. 53 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-09-18 11:49:42,127 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:49:42,845 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 133 proven. 220 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:49:42,866 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:49:42,866 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:49:42,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:42,883 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:49:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:43,073 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:49:43,372 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 263 proven. 53 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-09-18 11:49:43,372 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:49:44,051 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 133 proven. 220 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:49:44,053 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:49:44,054 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8, 8, 8] total 26 [2018-09-18 11:49:44,054 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:49:44,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-18 11:49:44,055 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-18 11:49:44,056 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2018-09-18 11:49:44,056 INFO L87 Difference]: Start difference. First operand 3129 states and 4631 transitions. Second operand 15 states. [2018-09-18 11:49:49,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:49:49,763 INFO L93 Difference]: Finished difference Result 7978 states and 11983 transitions. [2018-09-18 11:49:49,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-18 11:49:49,764 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 321 [2018-09-18 11:49:49,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:49:49,790 INFO L225 Difference]: With dead ends: 7978 [2018-09-18 11:49:49,790 INFO L226 Difference]: Without dead ends: 4652 [2018-09-18 11:49:49,812 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1327 GetRequests, 1283 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=415, Invalid=1307, Unknown=0, NotChecked=0, Total=1722 [2018-09-18 11:49:49,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4652 states. [2018-09-18 11:49:49,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4652 to 4062. [2018-09-18 11:49:49,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4062 states. [2018-09-18 11:49:49,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4062 states to 4062 states and 5306 transitions. [2018-09-18 11:49:49,934 INFO L78 Accepts]: Start accepts. Automaton has 4062 states and 5306 transitions. Word has length 321 [2018-09-18 11:49:49,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:49:49,935 INFO L480 AbstractCegarLoop]: Abstraction has 4062 states and 5306 transitions. [2018-09-18 11:49:49,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-18 11:49:49,935 INFO L276 IsEmpty]: Start isEmpty. Operand 4062 states and 5306 transitions. [2018-09-18 11:49:49,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2018-09-18 11:49:49,950 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:49:49,950 INFO L376 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:49:49,950 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:49:49,951 INFO L82 PathProgramCache]: Analyzing trace with hash -774820020, now seen corresponding path program 1 times [2018-09-18 11:49:49,951 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:49:49,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:49,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:49,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:49,952 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:49:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:50,530 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 225 proven. 158 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:49:50,530 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:49:50,530 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 [2018-09-18 11:49:50,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:50,540 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:49:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:50,639 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:49:50,860 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2018-09-18 11:49:50,860 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:49:51,231 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 123 proven. 175 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-09-18 11:49:51,252 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:49:51,252 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 5] total 15 [2018-09-18 11:49:51,252 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:49:51,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:49:51,253 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:49:51,255 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2018-09-18 11:49:51,256 INFO L87 Difference]: Start difference. First operand 4062 states and 5306 transitions. Second operand 5 states. [2018-09-18 11:49:53,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:49:53,683 INFO L93 Difference]: Finished difference Result 11086 states and 14748 transitions. [2018-09-18 11:49:53,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:49:53,687 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 346 [2018-09-18 11:49:53,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:49:53,717 INFO L225 Difference]: With dead ends: 11086 [2018-09-18 11:49:53,717 INFO L226 Difference]: Without dead ends: 7030 [2018-09-18 11:49:53,743 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 709 GetRequests, 689 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2018-09-18 11:49:53,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7030 states. [2018-09-18 11:49:53,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7030 to 6629. [2018-09-18 11:49:53,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6629 states. [2018-09-18 11:49:53,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6629 states to 6629 states and 8247 transitions. [2018-09-18 11:49:53,892 INFO L78 Accepts]: Start accepts. Automaton has 6629 states and 8247 transitions. Word has length 346 [2018-09-18 11:49:53,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:49:53,893 INFO L480 AbstractCegarLoop]: Abstraction has 6629 states and 8247 transitions. [2018-09-18 11:49:53,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:49:53,893 INFO L276 IsEmpty]: Start isEmpty. Operand 6629 states and 8247 transitions. [2018-09-18 11:49:53,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2018-09-18 11:49:53,912 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:49:53,912 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:49:53,912 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:49:53,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1778676391, now seen corresponding path program 1 times [2018-09-18 11:49:53,913 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:49:53,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:53,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:53,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:53,914 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:49:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:54,548 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 396 proven. 74 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2018-09-18 11:49:54,549 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:49:54,549 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 [2018-09-18 11:49:54,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:54,559 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:49:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:54,679 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:49:54,787 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 569 proven. 2 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2018-09-18 11:49:54,788 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:49:55,446 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 396 proven. 74 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2018-09-18 11:49:55,467 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:49:55,467 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:49:55,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:55,484 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:49:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:55,755 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:49:56,148 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 565 proven. 6 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2018-09-18 11:49:56,148 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:49:56,479 WARN L178 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-18 11:49:56,644 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-18 11:49:56,968 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 396 proven. 74 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2018-09-18 11:49:56,970 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:49:56,971 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5, 5, 5] total 8 [2018-09-18 11:49:56,971 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:49:56,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-18 11:49:56,973 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-18 11:49:56,973 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:49:56,973 INFO L87 Difference]: Start difference. First operand 6629 states and 8247 transitions. Second operand 7 states. [2018-09-18 11:49:59,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:49:59,458 INFO L93 Difference]: Finished difference Result 13404 states and 16737 transitions. [2018-09-18 11:49:59,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-18 11:49:59,458 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 457 [2018-09-18 11:49:59,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:49:59,487 INFO L225 Difference]: With dead ends: 13404 [2018-09-18 11:49:59,488 INFO L226 Difference]: Without dead ends: 6781 [2018-09-18 11:49:59,511 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1847 GetRequests, 1825 SyntacticMatches, 11 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2018-09-18 11:49:59,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6781 states. [2018-09-18 11:49:59,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6781 to 5906. [2018-09-18 11:49:59,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5906 states. [2018-09-18 11:49:59,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5906 states to 5906 states and 7037 transitions. [2018-09-18 11:49:59,659 INFO L78 Accepts]: Start accepts. Automaton has 5906 states and 7037 transitions. Word has length 457 [2018-09-18 11:49:59,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:49:59,660 INFO L480 AbstractCegarLoop]: Abstraction has 5906 states and 7037 transitions. [2018-09-18 11:49:59,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-18 11:49:59,660 INFO L276 IsEmpty]: Start isEmpty. Operand 5906 states and 7037 transitions. [2018-09-18 11:49:59,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2018-09-18 11:49:59,678 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:49:59,678 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:49:59,679 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:49:59,679 INFO L82 PathProgramCache]: Analyzing trace with hash -575430312, now seen corresponding path program 1 times [2018-09-18 11:49:59,679 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:49:59,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:59,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:59,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:59,681 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:49:59,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:01,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1091 backedges. 536 proven. 399 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2018-09-18 11:50:01,087 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:01,087 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:50:01,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:01,096 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:01,238 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:01,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1091 backedges. 773 proven. 2 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2018-09-18 11:50:01,651 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:02,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1091 backedges. 530 proven. 74 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2018-09-18 11:50:02,271 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:02,271 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:50:02,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:02,288 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:02,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:02,593 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:03,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1091 backedges. 565 proven. 210 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2018-09-18 11:50:03,077 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:03,288 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-18 11:50:04,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1091 backedges. 241 proven. 571 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2018-09-18 11:50:04,012 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:50:04,013 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5, 8, 8] total 16 [2018-09-18 11:50:04,013 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:50:04,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-18 11:50:04,015 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-18 11:50:04,015 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2018-09-18 11:50:04,015 INFO L87 Difference]: Start difference. First operand 5906 states and 7037 transitions. Second operand 13 states. [2018-09-18 11:50:07,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:50:07,838 INFO L93 Difference]: Finished difference Result 12365 states and 15069 transitions. [2018-09-18 11:50:07,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-18 11:50:07,839 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 542 [2018-09-18 11:50:07,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:50:07,862 INFO L225 Difference]: With dead ends: 12365 [2018-09-18 11:50:07,863 INFO L226 Difference]: Without dead ends: 6262 [2018-09-18 11:50:07,873 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2196 GetRequests, 2158 SyntacticMatches, 15 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=171, Invalid=429, Unknown=0, NotChecked=0, Total=600 [2018-09-18 11:50:07,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6262 states. [2018-09-18 11:50:07,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6262 to 6087. [2018-09-18 11:50:07,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6087 states. [2018-09-18 11:50:07,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6087 states to 6087 states and 7033 transitions. [2018-09-18 11:50:07,991 INFO L78 Accepts]: Start accepts. Automaton has 6087 states and 7033 transitions. Word has length 542 [2018-09-18 11:50:07,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:50:07,991 INFO L480 AbstractCegarLoop]: Abstraction has 6087 states and 7033 transitions. [2018-09-18 11:50:07,991 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-18 11:50:07,992 INFO L276 IsEmpty]: Start isEmpty. Operand 6087 states and 7033 transitions. [2018-09-18 11:50:08,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2018-09-18 11:50:08,003 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:50:08,004 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:50:08,004 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:50:08,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1142985348, now seen corresponding path program 2 times [2018-09-18 11:50:08,004 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:50:08,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:08,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:08,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:08,006 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:50:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:08,668 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-18 11:50:09,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1168 backedges. 562 proven. 425 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2018-09-18 11:50:09,791 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:09,792 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:50:09,802 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-18 11:50:09,803 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-18 11:50:09,944 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-18 11:50:09,944 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 11:50:09,952 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:10,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1168 backedges. 799 proven. 2 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2018-09-18 11:50:10,478 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:10,644 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2018-09-18 11:50:11,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1168 backedges. 556 proven. 74 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2018-09-18 11:50:11,564 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:11,564 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:50:11,582 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-18 11:50:11,582 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-18 11:50:11,915 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-18 11:50:11,915 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 11:50:11,930 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:12,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1168 backedges. 784 proven. 17 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2018-09-18 11:50:12,663 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:13,052 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 25 [2018-09-18 11:50:14,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1168 backedges. 235 proven. 603 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2018-09-18 11:50:14,761 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:50:14,762 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5, 10, 11] total 31 [2018-09-18 11:50:14,762 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:50:14,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-18 11:50:14,764 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-18 11:50:14,765 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=782, Unknown=0, NotChecked=0, Total=930 [2018-09-18 11:50:14,765 INFO L87 Difference]: Start difference. First operand 6087 states and 7033 transitions. Second operand 18 states. [2018-09-18 11:50:18,494 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2018-09-18 11:50:20,461 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2018-09-18 11:50:20,663 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2018-09-18 11:50:20,948 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2018-09-18 11:50:21,206 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2018-09-18 11:50:23,971 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2018-09-18 11:50:24,542 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2018-09-18 11:50:25,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:50:25,334 INFO L93 Difference]: Finished difference Result 16031 states and 18798 transitions. [2018-09-18 11:50:25,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-09-18 11:50:25,334 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 568 [2018-09-18 11:50:25,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:50:25,358 INFO L225 Difference]: With dead ends: 16031 [2018-09-18 11:50:25,359 INFO L226 Difference]: Without dead ends: 9950 [2018-09-18 11:50:25,376 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2349 GetRequests, 2270 SyntacticMatches, 14 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1188 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=813, Invalid=3609, Unknown=0, NotChecked=0, Total=4422 [2018-09-18 11:50:25,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9950 states. [2018-09-18 11:50:25,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9950 to 9211. [2018-09-18 11:50:25,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9211 states. [2018-09-18 11:50:25,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9211 states to 9211 states and 10257 transitions. [2018-09-18 11:50:25,528 INFO L78 Accepts]: Start accepts. Automaton has 9211 states and 10257 transitions. Word has length 568 [2018-09-18 11:50:25,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:50:25,529 INFO L480 AbstractCegarLoop]: Abstraction has 9211 states and 10257 transitions. [2018-09-18 11:50:25,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-18 11:50:25,529 INFO L276 IsEmpty]: Start isEmpty. Operand 9211 states and 10257 transitions. [2018-09-18 11:50:25,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2018-09-18 11:50:25,540 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:50:25,541 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:50:25,541 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:50:25,542 INFO L82 PathProgramCache]: Analyzing trace with hash 880002196, now seen corresponding path program 1 times [2018-09-18 11:50:25,542 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:50:25,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:25,543 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-18 11:50:25,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:25,543 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:50:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:26,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 563 proven. 74 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2018-09-18 11:50:26,466 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:26,466 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:50:26,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:26,474 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:26,633 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:26,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 806 proven. 2 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2018-09-18 11:50:26,907 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:27,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 563 proven. 74 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2018-09-18 11:50:27,225 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:27,225 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:50:27,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:27,240 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:27,618 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:27,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 806 proven. 2 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2018-09-18 11:50:27,864 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:28,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 563 proven. 74 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2018-09-18 11:50:28,396 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:50:28,397 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 9 [2018-09-18 11:50:28,397 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:50:28,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-18 11:50:28,400 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-18 11:50:28,400 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:50:28,400 INFO L87 Difference]: Start difference. First operand 9211 states and 10257 transitions. Second operand 7 states. [2018-09-18 11:50:31,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:50:31,582 INFO L93 Difference]: Finished difference Result 24394 states and 30322 transitions. [2018-09-18 11:50:31,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-18 11:50:31,582 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 642 [2018-09-18 11:50:31,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:50:31,654 INFO L225 Difference]: With dead ends: 24394 [2018-09-18 11:50:31,654 INFO L226 Difference]: Without dead ends: 15372 [2018-09-18 11:50:31,707 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2584 GetRequests, 2569 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-09-18 11:50:31,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15372 states. [2018-09-18 11:50:31,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15372 to 14990. [2018-09-18 11:50:31,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14990 states. [2018-09-18 11:50:32,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14990 states to 14990 states and 17003 transitions. [2018-09-18 11:50:32,031 INFO L78 Accepts]: Start accepts. Automaton has 14990 states and 17003 transitions. Word has length 642 [2018-09-18 11:50:32,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:50:32,032 INFO L480 AbstractCegarLoop]: Abstraction has 14990 states and 17003 transitions. [2018-09-18 11:50:32,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-18 11:50:32,033 INFO L276 IsEmpty]: Start isEmpty. Operand 14990 states and 17003 transitions. [2018-09-18 11:50:32,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2018-09-18 11:50:32,049 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:50:32,049 INFO L376 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:50:32,049 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:50:32,050 INFO L82 PathProgramCache]: Analyzing trace with hash 998694931, now seen corresponding path program 1 times [2018-09-18 11:50:32,050 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:50:32,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:32,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:32,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:32,051 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:50:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:32,788 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-18 11:50:33,783 INFO L134 CoverageAnalysis]: Checked inductivity of 2099 backedges. 824 proven. 712 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2018-09-18 11:50:33,784 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:33,784 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:50:33,791 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:33,792 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:33,996 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:34,938 INFO L134 CoverageAnalysis]: Checked inductivity of 2099 backedges. 1194 proven. 2 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2018-09-18 11:50:34,939 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:35,107 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2018-09-18 11:50:35,267 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-18 11:50:36,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2099 backedges. 812 proven. 74 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2018-09-18 11:50:36,109 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:36,109 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:50:36,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:36,124 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:36,527 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:37,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2099 backedges. 1186 proven. 10 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2018-09-18 11:50:37,319 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:38,693 INFO L134 CoverageAnalysis]: Checked inductivity of 2099 backedges. 317 proven. 916 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked. [2018-09-18 11:50:38,695 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:50:38,697 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5, 8, 8] total 28 [2018-09-18 11:50:38,697 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:50:38,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-18 11:50:38,698 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-18 11:50:38,698 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=623, Unknown=0, NotChecked=0, Total=756 [2018-09-18 11:50:38,698 INFO L87 Difference]: Start difference. First operand 14990 states and 17003 transitions. Second operand 17 states. [2018-09-18 11:50:46,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:50:46,428 INFO L93 Difference]: Finished difference Result 30546 states and 36169 transitions. [2018-09-18 11:50:46,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-09-18 11:50:46,429 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 731 [2018-09-18 11:50:46,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:50:46,480 INFO L225 Difference]: With dead ends: 30546 [2018-09-18 11:50:46,480 INFO L226 Difference]: Without dead ends: 14961 [2018-09-18 11:50:46,533 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3007 GetRequests, 2929 SyntacticMatches, 8 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1415 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1093, Invalid=4019, Unknown=0, NotChecked=0, Total=5112 [2018-09-18 11:50:46,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14961 states. [2018-09-18 11:50:46,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14961 to 14570. [2018-09-18 11:50:46,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14570 states. [2018-09-18 11:50:46,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14570 states to 14570 states and 16062 transitions. [2018-09-18 11:50:46,821 INFO L78 Accepts]: Start accepts. Automaton has 14570 states and 16062 transitions. Word has length 731 [2018-09-18 11:50:46,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:50:46,822 INFO L480 AbstractCegarLoop]: Abstraction has 14570 states and 16062 transitions. [2018-09-18 11:50:46,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-09-18 11:50:46,822 INFO L276 IsEmpty]: Start isEmpty. Operand 14570 states and 16062 transitions. [2018-09-18 11:50:46,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 803 [2018-09-18 11:50:46,833 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:50:46,834 INFO L376 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:50:46,834 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:50:46,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1138657660, now seen corresponding path program 1 times [2018-09-18 11:50:46,835 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:50:46,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:46,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:46,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:46,836 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:50:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:49,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1790 backedges. 779 proven. 677 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2018-09-18 11:50:49,457 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:49,457 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:50:49,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:49,465 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:49,659 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:49,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1790 backedges. 1085 proven. 2 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2018-09-18 11:50:49,969 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:50,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1790 backedges. 772 proven. 74 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2018-09-18 11:50:50,443 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:50,443 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:50:50,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:50,459 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:50,883 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:51,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1790 backedges. 1085 proven. 2 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2018-09-18 11:50:51,098 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:51,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1790 backedges. 772 proven. 74 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2018-09-18 11:50:51,597 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:50:51,598 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5, 5, 5, 5] total 22 [2018-09-18 11:50:51,598 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:50:51,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-18 11:50:51,600 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-18 11:50:51,600 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2018-09-18 11:50:51,601 INFO L87 Difference]: Start difference. First operand 14570 states and 16062 transitions. Second operand 20 states. [2018-09-18 11:51:00,834 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2018-09-18 11:51:01,309 WARN L178 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 20 [2018-09-18 11:51:03,841 WARN L178 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-18 11:51:06,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:51:06,446 INFO L93 Difference]: Finished difference Result 31996 states and 36086 transitions. [2018-09-18 11:51:06,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2018-09-18 11:51:06,446 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 802 [2018-09-18 11:51:06,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:51:06,484 INFO L225 Difference]: With dead ends: 31996 [2018-09-18 11:51:06,484 INFO L226 Difference]: Without dead ends: 17289 [2018-09-18 11:51:06,517 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3372 GetRequests, 3268 SyntacticMatches, 6 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3300 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=1374, Invalid=8526, Unknown=0, NotChecked=0, Total=9900 [2018-09-18 11:51:06,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17289 states. [2018-09-18 11:51:06,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17289 to 16917. [2018-09-18 11:51:06,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16917 states. [2018-09-18 11:51:06,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16917 states to 16917 states and 18437 transitions. [2018-09-18 11:51:06,782 INFO L78 Accepts]: Start accepts. Automaton has 16917 states and 18437 transitions. Word has length 802 [2018-09-18 11:51:06,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:51:06,783 INFO L480 AbstractCegarLoop]: Abstraction has 16917 states and 18437 transitions. [2018-09-18 11:51:06,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-09-18 11:51:06,783 INFO L276 IsEmpty]: Start isEmpty. Operand 16917 states and 18437 transitions. [2018-09-18 11:51:06,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1060 [2018-09-18 11:51:06,811 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:51:06,812 INFO L376 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:51:06,812 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:51:06,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1241578467, now seen corresponding path program 1 times [2018-09-18 11:51:06,813 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:51:06,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:06,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:06,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:06,814 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:51:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:07,887 WARN L178 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 10 [2018-09-18 11:51:08,278 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 31 [2018-09-18 11:51:11,332 INFO L134 CoverageAnalysis]: Checked inductivity of 3585 backedges. 1173 proven. 2065 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2018-09-18 11:51:11,333 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:51:11,333 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:51:11,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:11,343 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:51:11,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:11,602 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:12,203 INFO L134 CoverageAnalysis]: Checked inductivity of 3585 backedges. 988 proven. 2 refuted. 0 times theorem prover too weak. 2595 trivial. 0 not checked. [2018-09-18 11:51:12,204 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:51:13,301 INFO L134 CoverageAnalysis]: Checked inductivity of 3585 backedges. 988 proven. 2 refuted. 0 times theorem prover too weak. 2595 trivial. 0 not checked. [2018-09-18 11:51:13,322 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:51:13,322 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 19 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:51:13,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:13,339 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:51:13,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:13,914 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:15,375 INFO L134 CoverageAnalysis]: Checked inductivity of 3585 backedges. 2096 proven. 6 refuted. 0 times theorem prover too weak. 1483 trivial. 0 not checked. [2018-09-18 11:51:15,375 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:51:16,429 INFO L134 CoverageAnalysis]: Checked inductivity of 3585 backedges. 1573 proven. 221 refuted. 0 times theorem prover too weak. 1791 trivial. 0 not checked. [2018-09-18 11:51:16,432 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:51:16,433 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 5, 5, 7, 8] total 44 [2018-09-18 11:51:16,433 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:51:16,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-09-18 11:51:16,435 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-09-18 11:51:16,436 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1700, Unknown=0, NotChecked=0, Total=1892 [2018-09-18 11:51:16,436 INFO L87 Difference]: Start difference. First operand 16917 states and 18437 transitions. Second operand 31 states. [2018-09-18 11:51:19,213 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 30 [2018-09-18 11:51:20,111 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 35 [2018-09-18 11:51:20,551 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 36 [2018-09-18 11:51:26,243 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 32 [2018-09-18 11:51:26,516 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 31 [2018-09-18 11:51:27,204 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 41 [2018-09-18 11:51:27,743 WARN L178 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2018-09-18 11:51:28,939 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 33 [2018-09-18 11:51:30,521 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2018-09-18 11:51:33,811 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2018-09-18 11:51:34,269 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 36 [2018-09-18 11:51:34,780 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 39 [2018-09-18 11:51:36,061 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 37 [2018-09-18 11:51:36,400 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 30 [2018-09-18 11:51:36,747 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2018-09-18 11:51:37,455 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 44 [2018-09-18 11:51:37,725 WARN L178 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2018-09-18 11:51:38,123 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 39 [2018-09-18 11:51:39,015 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 38 [2018-09-18 11:51:40,275 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2018-09-18 11:51:44,011 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 32 [2018-09-18 11:51:44,364 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 41 [2018-09-18 11:51:44,932 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 32 [2018-09-18 11:51:45,346 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 29 [2018-09-18 11:51:46,452 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 32 [2018-09-18 11:51:47,239 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 30 [2018-09-18 11:51:47,534 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2018-09-18 11:51:47,775 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 30 [2018-09-18 11:51:47,947 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2018-09-18 11:51:51,424 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 30 [2018-09-18 11:51:51,779 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 35 [2018-09-18 11:51:52,231 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 23 [2018-09-18 11:51:53,751 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 35 [2018-09-18 11:51:54,255 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 30 [2018-09-18 11:51:55,803 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 34 [2018-09-18 11:51:56,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:51:56,818 INFO L93 Difference]: Finished difference Result 38128 states and 45256 transitions. [2018-09-18 11:51:56,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2018-09-18 11:51:56,818 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 1059 [2018-09-18 11:51:56,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:51:56,920 INFO L225 Difference]: With dead ends: 38128 [2018-09-18 11:51:56,920 INFO L226 Difference]: Without dead ends: 19951 [2018-09-18 11:51:57,017 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4460 GetRequests, 4280 SyntacticMatches, 6 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10648 ImplicationChecksByTransitivity, 18.3s TimeCoverageRelationStatistics Valid=3969, Invalid=26831, Unknown=0, NotChecked=0, Total=30800 [2018-09-18 11:51:57,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19951 states. [2018-09-18 11:51:57,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19951 to 16248. [2018-09-18 11:51:57,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16248 states. [2018-09-18 11:51:57,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16248 states to 16248 states and 17291 transitions. [2018-09-18 11:51:57,439 INFO L78 Accepts]: Start accepts. Automaton has 16248 states and 17291 transitions. Word has length 1059 [2018-09-18 11:51:57,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:51:57,440 INFO L480 AbstractCegarLoop]: Abstraction has 16248 states and 17291 transitions. [2018-09-18 11:51:57,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-09-18 11:51:57,441 INFO L276 IsEmpty]: Start isEmpty. Operand 16248 states and 17291 transitions. [2018-09-18 11:51:57,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1108 [2018-09-18 11:51:57,465 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:51:57,466 INFO L376 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:51:57,466 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:51:57,467 INFO L82 PathProgramCache]: Analyzing trace with hash 335900483, now seen corresponding path program 1 times [2018-09-18 11:51:57,467 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:51:57,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:57,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:57,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:57,469 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:51:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:58,822 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 1722 proven. 265 refuted. 0 times theorem prover too weak. 1795 trivial. 0 not checked. [2018-09-18 11:51:58,822 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:51:58,822 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:51:58,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:58,832 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:51:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:59,102 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:59,696 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 2245 proven. 6 refuted. 0 times theorem prover too weak. 1531 trivial. 0 not checked. [2018-09-18 11:51:59,696 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:52:00,626 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 1722 proven. 269 refuted. 0 times theorem prover too weak. 1791 trivial. 0 not checked. [2018-09-18 11:52:00,657 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:52:00,658 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 21 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:52:00,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:52:00,683 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:52:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:52:01,270 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:52:01,851 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 2245 proven. 6 refuted. 0 times theorem prover too weak. 1531 trivial. 0 not checked. [2018-09-18 11:52:01,851 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:52:02,722 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 1722 proven. 269 refuted. 0 times theorem prover too weak. 1791 trivial. 0 not checked. [2018-09-18 11:52:02,725 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:52:02,726 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8, 7, 8] total 14 [2018-09-18 11:52:02,726 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:52:02,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:52:02,729 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:52:02,729 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2018-09-18 11:52:02,729 INFO L87 Difference]: Start difference. First operand 16248 states and 17291 transitions. Second operand 9 states. [2018-09-18 11:52:06,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:52:06,308 INFO L93 Difference]: Finished difference Result 35528 states and 38084 transitions. [2018-09-18 11:52:06,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-18 11:52:06,309 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1107 [2018-09-18 11:52:06,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:52:06,354 INFO L225 Difference]: With dead ends: 35528 [2018-09-18 11:52:06,354 INFO L226 Difference]: Without dead ends: 19469 [2018-09-18 11:52:06,385 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4457 GetRequests, 4430 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=179, Invalid=421, Unknown=0, NotChecked=0, Total=600 [2018-09-18 11:52:06,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19469 states. [2018-09-18 11:52:06,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19469 to 18206. [2018-09-18 11:52:06,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18206 states. [2018-09-18 11:52:06,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18206 states to 18206 states and 19245 transitions. [2018-09-18 11:52:06,718 INFO L78 Accepts]: Start accepts. Automaton has 18206 states and 19245 transitions. Word has length 1107 [2018-09-18 11:52:06,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:52:06,719 INFO L480 AbstractCegarLoop]: Abstraction has 18206 states and 19245 transitions. [2018-09-18 11:52:06,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:52:06,719 INFO L276 IsEmpty]: Start isEmpty. Operand 18206 states and 19245 transitions. [2018-09-18 11:52:06,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1527 [2018-09-18 11:52:06,742 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:52:06,743 INFO L376 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:52:06,743 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:52:06,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1101738340, now seen corresponding path program 1 times [2018-09-18 11:52:06,744 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:52:06,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:52:06,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:52:06,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:52:06,745 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:52:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:52:08,413 INFO L134 CoverageAnalysis]: Checked inductivity of 6555 backedges. 481 proven. 0 refuted. 0 times theorem prover too weak. 6074 trivial. 0 not checked. [2018-09-18 11:52:08,413 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:52:08,413 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:52:08,413 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:52:08,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:52:08,414 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:52:08,415 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:52:08,415 INFO L87 Difference]: Start difference. First operand 18206 states and 19245 transitions. Second operand 4 states. [2018-09-18 11:52:09,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:52:09,848 INFO L93 Difference]: Finished difference Result 38071 states and 40237 transitions. [2018-09-18 11:52:09,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:52:09,849 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1526 [2018-09-18 11:52:09,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:52:09,850 INFO L225 Difference]: With dead ends: 38071 [2018-09-18 11:52:09,850 INFO L226 Difference]: Without dead ends: 0 [2018-09-18 11:52:09,906 INFO L604 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 [2018-09-18 11:52:09,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-18 11:52:09,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-18 11:52:09,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-18 11:52:09,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-18 11:52:09,907 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1526 [2018-09-18 11:52:09,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:52:09,907 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-18 11:52:09,907 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:52:09,907 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-18 11:52:09,907 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-18 11:52:09,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-18 11:52:09,993 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:10,045 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:10,050 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:10,249 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:10,277 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:10,372 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:10,457 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:10,609 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:14,397 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:14,532 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:15,432 WARN L178 SmtUtils]: Spent 5.01 s on a formula simplification. DAG size of input: 1028 DAG size of output: 960 [2018-09-18 11:52:15,459 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:15,567 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:17,823 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:17,920 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:18,855 WARN L178 SmtUtils]: Spent 3.42 s on a formula simplification. DAG size of input: 1028 DAG size of output: 960 [2018-09-18 11:52:21,956 WARN L178 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 450 DAG size of output: 92 [2018-09-18 11:52:32,650 WARN L178 SmtUtils]: Spent 10.66 s on a formula simplification. DAG size of input: 960 DAG size of output: 95 [2018-09-18 11:52:43,531 WARN L178 SmtUtils]: Spent 10.87 s on a formula simplification. DAG size of input: 960 DAG size of output: 95 [2018-09-18 11:52:43,534 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-18 11:52:43,534 INFO L422 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0)) [2018-09-18 11:52:43,534 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-18 11:52:43,535 INFO L426 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-09-18 11:52:43,535 INFO L426 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-09-18 11:52:43,535 INFO L426 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,535 INFO L426 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,535 INFO L426 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,535 INFO L426 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-09-18 11:52:43,535 INFO L426 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-09-18 11:52:43,535 INFO L426 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-09-18 11:52:43,535 INFO L426 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-09-18 11:52:43,535 INFO L426 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-09-18 11:52:43,535 INFO L426 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-09-18 11:52:43,535 INFO L426 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-09-18 11:52:43,536 INFO L426 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-09-18 11:52:43,536 INFO L426 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,536 INFO L426 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,536 INFO L426 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,536 INFO L426 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-09-18 11:52:43,536 INFO L426 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-09-18 11:52:43,536 INFO L426 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-09-18 11:52:43,536 INFO L426 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-09-18 11:52:43,536 INFO L426 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-09-18 11:52:43,537 INFO L426 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-09-18 11:52:43,537 INFO L426 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-09-18 11:52:43,537 INFO L426 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-09-18 11:52:43,537 INFO L426 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,537 INFO L426 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,537 INFO L426 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,537 INFO L426 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-09-18 11:52:43,537 INFO L426 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-09-18 11:52:43,537 INFO L426 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-09-18 11:52:43,537 INFO L426 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-09-18 11:52:43,537 INFO L426 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-09-18 11:52:43,537 INFO L426 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-09-18 11:52:43,538 INFO L426 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-09-18 11:52:43,538 INFO L426 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-09-18 11:52:43,538 INFO L426 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-09-18 11:52:43,538 INFO L426 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,538 INFO L426 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,538 INFO L426 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,538 INFO L426 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-09-18 11:52:43,538 INFO L426 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-09-18 11:52:43,538 INFO L426 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-09-18 11:52:43,539 INFO L426 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-09-18 11:52:43,539 INFO L426 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-09-18 11:52:43,539 INFO L426 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-09-18 11:52:43,539 INFO L426 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-09-18 11:52:43,539 INFO L426 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,539 INFO L426 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,539 INFO L426 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,539 INFO L426 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-09-18 11:52:43,539 INFO L426 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-09-18 11:52:43,539 INFO L426 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-09-18 11:52:43,540 INFO L426 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-09-18 11:52:43,540 INFO L426 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-09-18 11:52:43,540 INFO L426 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-09-18 11:52:43,540 INFO L426 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-09-18 11:52:43,540 INFO L426 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-09-18 11:52:43,540 INFO L426 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-09-18 11:52:43,540 INFO L426 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,540 INFO L426 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,540 INFO L426 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,541 INFO L426 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,541 INFO L426 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-09-18 11:52:43,541 INFO L426 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-09-18 11:52:43,541 INFO L426 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-09-18 11:52:43,541 INFO L426 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-09-18 11:52:43,541 INFO L426 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-09-18 11:52:43,541 INFO L426 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-09-18 11:52:43,541 INFO L426 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-09-18 11:52:43,541 INFO L426 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-09-18 11:52:43,541 INFO L426 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,541 INFO L426 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,541 INFO L426 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,542 INFO L426 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-09-18 11:52:43,542 INFO L426 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-09-18 11:52:43,542 INFO L426 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-09-18 11:52:43,542 INFO L426 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-09-18 11:52:43,542 INFO L426 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-09-18 11:52:43,542 INFO L426 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-09-18 11:52:43,542 INFO L426 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-09-18 11:52:43,542 INFO L426 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-09-18 11:52:43,543 INFO L426 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,543 INFO L426 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,543 INFO L426 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,543 INFO L426 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-09-18 11:52:43,543 INFO L426 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-09-18 11:52:43,543 INFO L426 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-09-18 11:52:43,543 INFO L426 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-09-18 11:52:43,543 INFO L426 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-09-18 11:52:43,543 INFO L426 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-09-18 11:52:43,543 INFO L422 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse17 (<= ~a21~0 |old(~a21~0)|)) (.cse12 (= 10 |old(~a21~0)|)) (.cse13 (= ~a12~0 |old(~a12~0)|)) (.cse16 (<= |old(~a21~0)| ~a21~0)) (.cse14 (= |old(~a15~0)| ~a15~0)) (.cse15 (= 1 ~a24~0))) (let ((.cse3 (< 11 |old(~a12~0)|)) (.cse9 (< 6 |old(~a21~0)|)) (.cse6 (and .cse13 .cse16 .cse14 .cse15 (<= ~a21~0 6))) (.cse0 (not .cse12)) (.cse11 (<= |old(~a12~0)| 80)) (.cse7 (< |old(~a12~0)| 12849)) (.cse4 (= 6 |old(~a15~0)|)) (.cse18 (= 8 |old(~a21~0)|)) (.cse10 (= 6 |old(~a21~0)|)) (.cse2 (not (= 1 |old(~a24~0)|))) (.cse8 (< 73282 |old(~a12~0)|)) (.cse1 (and .cse13 .cse16 .cse14 .cse15 .cse17)) (.cse5 (= 9 |old(~a15~0)|))) (and (or .cse0 .cse1 .cse2 .cse3) (or (or .cse2 .cse4 .cse5) .cse1) (or .cse6 .cse7 .cse2 .cse8 .cse9) (or (not (= 7 |old(~a21~0)|)) (< |old(~a12~0)| 81) .cse1 .cse2) (or .cse1 (or .cse10 .cse2 .cse3 .cse5)) (or (< 76 |old(~a12~0)|) .cse2 (<= |old(~a12~0)| 11) .cse9 .cse5 .cse6) (or (< |old(~a21~0)| 9) .cse2 .cse11 .cse1 .cse12) (or (and .cse13 .cse14 .cse15 (= 10 ~a21~0)) (or .cse0 .cse2 .cse4 .cse11)) (or .cse1 .cse7 .cse2 .cse4) (or (not .cse5) (and .cse13 .cse16 .cse15 .cse17 (= ~a15~0 9)) .cse2 (not .cse18)) (or (and .cse13 (= ~a24~0 |old(~a24~0)|) .cse16 .cse14 .cse17) (or (< 0 (+ |old(~a12~0)| 49)) .cse4 .cse5 (< 7 |old(~a21~0)|))) (or (and (< 80 |old(~a12~0)|) .cse18) .cse10 (= 9 |old(~a21~0)|) .cse2 .cse8 .cse1 .cse5 .cse12)))) [2018-09-18 11:52:43,543 INFO L426 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-09-18 11:52:43,544 INFO L426 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-09-18 11:52:43,544 INFO L426 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,544 INFO L426 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,544 INFO L426 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,544 INFO L426 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-09-18 11:52:43,544 INFO L426 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-09-18 11:52:43,544 INFO L426 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-09-18 11:52:43,544 INFO L426 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-09-18 11:52:43,544 INFO L426 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-09-18 11:52:43,544 INFO L426 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-09-18 11:52:43,544 INFO L426 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-09-18 11:52:43,544 INFO L426 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-09-18 11:52:43,544 INFO L426 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,544 INFO L426 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,544 INFO L426 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,545 INFO L426 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-09-18 11:52:43,545 INFO L426 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-09-18 11:52:43,545 INFO L426 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-09-18 11:52:43,545 INFO L426 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-09-18 11:52:43,545 INFO L426 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-09-18 11:52:43,545 INFO L426 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-09-18 11:52:43,545 INFO L426 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-09-18 11:52:43,545 INFO L426 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-09-18 11:52:43,545 INFO L426 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,545 INFO L426 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,545 INFO L426 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,546 INFO L426 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-09-18 11:52:43,546 INFO L426 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-09-18 11:52:43,546 INFO L426 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-09-18 11:52:43,546 INFO L426 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-09-18 11:52:43,546 INFO L426 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-09-18 11:52:43,546 INFO L426 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-09-18 11:52:43,546 INFO L426 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-09-18 11:52:43,546 INFO L426 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-09-18 11:52:43,546 INFO L426 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,547 INFO L426 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,547 INFO L426 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,547 INFO L426 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-09-18 11:52:43,547 INFO L426 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-09-18 11:52:43,547 INFO L426 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-09-18 11:52:43,547 INFO L426 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-09-18 11:52:43,547 INFO L426 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-09-18 11:52:43,547 INFO L426 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-09-18 11:52:43,547 INFO L426 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-09-18 11:52:43,547 INFO L426 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-09-18 11:52:43,548 INFO L426 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,548 INFO L426 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,548 INFO L426 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-09-18 11:52:43,548 INFO L426 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-09-18 11:52:43,548 INFO L426 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-09-18 11:52:43,548 INFO L426 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-09-18 11:52:43,548 INFO L426 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-09-18 11:52:43,548 INFO L426 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-09-18 11:52:43,548 INFO L426 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-09-18 11:52:43,549 INFO L426 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-09-18 11:52:43,549 INFO L426 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,549 INFO L426 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,549 INFO L426 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-09-18 11:52:43,549 INFO L426 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-09-18 11:52:43,549 INFO L426 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-09-18 11:52:43,549 INFO L426 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-09-18 11:52:43,549 INFO L426 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-09-18 11:52:43,550 INFO L426 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-09-18 11:52:43,550 INFO L426 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,550 INFO L426 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,550 INFO L426 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-09-18 11:52:43,550 INFO L426 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-09-18 11:52:43,550 INFO L426 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-09-18 11:52:43,550 INFO L426 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-09-18 11:52:43,550 INFO L426 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 127) no Hoare annotation was computed. [2018-09-18 11:52:43,550 INFO L426 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-09-18 11:52:43,551 INFO L426 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-09-18 11:52:43,551 INFO L426 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-09-18 11:52:43,551 INFO L426 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-09-18 11:52:43,551 INFO L426 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,551 INFO L426 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,551 INFO L426 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-09-18 11:52:43,551 INFO L426 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-09-18 11:52:43,551 INFO L426 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-09-18 11:52:43,552 INFO L426 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-09-18 11:52:43,552 INFO L426 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-09-18 11:52:43,552 INFO L426 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-09-18 11:52:43,552 INFO L426 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-09-18 11:52:43,552 INFO L426 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,552 INFO L426 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,552 INFO L426 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,552 INFO L426 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-09-18 11:52:43,552 INFO L426 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-09-18 11:52:43,552 INFO L426 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-09-18 11:52:43,553 INFO L426 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-09-18 11:52:43,553 INFO L426 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-09-18 11:52:43,553 INFO L426 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-09-18 11:52:43,553 INFO L426 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,553 INFO L426 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,553 INFO L426 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-09-18 11:52:43,553 INFO L426 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,553 INFO L426 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-09-18 11:52:43,553 INFO L426 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-09-18 11:52:43,554 INFO L426 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-09-18 11:52:43,554 INFO L426 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-09-18 11:52:43,554 INFO L426 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-09-18 11:52:43,554 INFO L426 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-09-18 11:52:43,554 INFO L426 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-09-18 11:52:43,554 INFO L426 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-09-18 11:52:43,554 INFO L426 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-09-18 11:52:43,554 INFO L426 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-09-18 11:52:43,554 INFO L426 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,554 INFO L426 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,555 INFO L426 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,555 INFO L426 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-09-18 11:52:43,555 INFO L426 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-09-18 11:52:43,555 INFO L426 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-09-18 11:52:43,555 INFO L426 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-09-18 11:52:43,555 INFO L426 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-09-18 11:52:43,555 INFO L426 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-09-18 11:52:43,555 INFO L426 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-09-18 11:52:43,555 INFO L426 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-09-18 11:52:43,555 INFO L426 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,555 INFO L426 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,556 INFO L426 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,556 INFO L426 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-09-18 11:52:43,556 INFO L426 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-09-18 11:52:43,556 INFO L426 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-09-18 11:52:43,556 INFO L426 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-09-18 11:52:43,556 INFO L426 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-09-18 11:52:43,556 INFO L426 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-09-18 11:52:43,556 INFO L426 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-09-18 11:52:43,556 INFO L426 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-09-18 11:52:43,556 INFO L426 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,557 INFO L426 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,557 INFO L426 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,557 INFO L426 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-09-18 11:52:43,557 INFO L426 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-09-18 11:52:43,557 INFO L426 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-09-18 11:52:43,557 INFO L426 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-09-18 11:52:43,557 INFO L426 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-09-18 11:52:43,557 INFO L426 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-09-18 11:52:43,557 INFO L426 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-09-18 11:52:43,557 INFO L426 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-09-18 11:52:43,558 INFO L426 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-09-18 11:52:43,558 INFO L426 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,558 INFO L426 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,558 INFO L426 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:43,558 INFO L426 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-09-18 11:52:43,558 INFO L426 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-09-18 11:52:43,558 INFO L426 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-09-18 11:52:43,558 INFO L426 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-09-18 11:52:43,558 INFO L426 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-09-18 11:52:43,558 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-18 11:52:43,559 INFO L422 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a21~0 7) (<= 7 ~a21~0) (= 1 ~a24~0) (= 8 ~a15~0) (<= (+ ~a12~0 49) 0)) [2018-09-18 11:52:43,559 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-18 11:52:43,559 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-18 11:52:43,559 INFO L422 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (< 0 (+ |old(~a12~0)| 49)) (not (= 8 |old(~a15~0)|)) (and (= ~a12~0 |old(~a12~0)|) (<= |old(~a21~0)| ~a21~0) (= 1 ~a24~0) (<= ~a21~0 |old(~a21~0)|) (= 8 ~a15~0)) (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|))) [2018-09-18 11:52:43,559 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-09-18 11:52:43,559 INFO L422 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse10 (not (= 8 |old(~a15~0)|))) (.cse9 (not (= 1 |old(~a24~0)|))) (.cse7 (not (= ~a15~0 6))) (.cse6 (not (= ~a15~0 9))) (.cse14 (not (= 10 ~a21~0))) (.cse0 (= 1 ~a24~0)) (.cse12 (not (= 6 ~a21~0)))) (let ((.cse1 (= ~a21~0 10)) (.cse3 (<= 9 ~a21~0)) (.cse5 (< 80 ~a12~0)) (.cse4 (and .cse6 .cse14 .cse0 .cse12)) (.cse2 (<= ~a12~0 11)) (.cse11 (and (and .cse6 .cse0) (<= ~a21~0 6))) (.cse13 (<= 12849 ~a12~0)) (.cse8 (and (or (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|)) .cse9) (and .cse14 .cse0 (or (not (= 10 |old(~a21~0)|)) (<= 0 (+ |old(~a12~0)| 42)) .cse10 .cse9) .cse12 .cse7)))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5) (and .cse6 .cse0 .cse7) (< 0 (+ |old(~a12~0)| 49)) (and (and .cse0 .cse1 .cse7) .cse5) (and .cse3 .cse8 .cse5) .cse9 (and (<= 81 ~a12~0) (and (= 7 ~a21~0) .cse0)) (and (not (= ~a21~0 9)) (<= ~a12~0 80) .cse4) .cse10 (and (< 11 ~a12~0) (and (<= ~a12~0 76) .cse11)) (and .cse6 .cse0 .cse2 .cse12) (and (<= ~a12~0 73282) .cse11 .cse13) (< 7 |old(~a21~0)|) (and .cse6 (<= ~a21~0 7) (<= (+ ~a12~0 49) 0) .cse7) (< |old(~a21~0)| 7) (and (and .cse0 .cse7) .cse13) (and (= 8 ~a21~0) .cse8)))) [2018-09-18 11:52:43,559 INFO L426 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-09-18 11:52:43,560 INFO L426 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-09-18 11:52:43,560 INFO L426 ceAbstractionStarter]: For program point L880-1(lines 880 889) no Hoare annotation was computed. [2018-09-18 11:52:43,560 INFO L422 ceAbstractionStarter]: At program point L880-3(lines 880 889) the Hoare annotation is: (let ((.cse10 (not (= 8 |old(~a15~0)|))) (.cse9 (not (= 1 |old(~a24~0)|))) (.cse7 (not (= ~a15~0 6))) (.cse6 (not (= ~a15~0 9))) (.cse14 (not (= 10 ~a21~0))) (.cse0 (= 1 ~a24~0)) (.cse12 (not (= 6 ~a21~0)))) (let ((.cse1 (= ~a21~0 10)) (.cse3 (<= 9 ~a21~0)) (.cse5 (< 80 ~a12~0)) (.cse4 (and .cse6 .cse14 .cse0 .cse12)) (.cse2 (<= ~a12~0 11)) (.cse11 (and (and .cse6 .cse0) (<= ~a21~0 6))) (.cse13 (<= 12849 ~a12~0)) (.cse8 (and (or (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|)) .cse9) (and .cse14 .cse0 (or (not (= 10 |old(~a21~0)|)) (<= 0 (+ |old(~a12~0)| 42)) .cse10 .cse9) .cse12 .cse7)))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5) (and .cse6 .cse0 .cse7) (< 0 (+ |old(~a12~0)| 49)) (and (and .cse0 .cse1 .cse7) .cse5) (and .cse3 .cse8 .cse5) .cse9 (and (<= 81 ~a12~0) (and (= 7 ~a21~0) .cse0)) (and (not (= ~a21~0 9)) (<= ~a12~0 80) .cse4) .cse10 (and (< 11 ~a12~0) (and (<= ~a12~0 76) .cse11)) (and .cse6 .cse0 .cse2 .cse12) (and (<= ~a12~0 73282) .cse11 .cse13) (< 7 |old(~a21~0)|) (and .cse6 (<= ~a21~0 7) (<= (+ ~a12~0 49) 0) .cse7) (< |old(~a21~0)| 7) (and (and .cse0 .cse7) .cse13) (and (= 8 ~a21~0) .cse8)))) [2018-09-18 11:52:43,560 INFO L426 ceAbstractionStarter]: For program point L880-4(lines 874 890) no Hoare annotation was computed. [2018-09-18 11:52:43,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 11:52:43 BoogieIcfgContainer [2018-09-18 11:52:43,585 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 11:52:43,586 INFO L168 Benchmark]: Toolchain (without parser) took 206792.59 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -217.1 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-09-18 11:52:43,587 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-09-18 11:52:43,587 INFO L168 Benchmark]: CACSL2BoogieTranslator took 778.62 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-18 11:52:43,588 INFO L168 Benchmark]: Boogie Procedure Inliner took 135.36 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. [2018-09-18 11:52:43,589 INFO L168 Benchmark]: Boogie Preprocessor took 280.72 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -848.9 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2018-09-18 11:52:43,589 INFO L168 Benchmark]: RCFGBuilder took 3670.08 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 126.4 MB). Peak memory consumption was 126.4 MB. Max. memory is 7.1 GB. [2018-09-18 11:52:43,590 INFO L168 Benchmark]: TraceAbstraction took 201921.07 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 452.6 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-09-18 11:52:43,594 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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. * CACSL2BoogieTranslator took 778.62 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 135.36 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 Preprocessor took 280.72 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -848.9 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3670.08 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 126.4 MB). Peak memory consumption was 126.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 201921.07 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 452.6 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 127]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: ((((((((((((((((((1 == a24 && a21 == 10) && a12 <= 11) || ((9 <= a21 && ((!(a15 == 9) && !(10 == a21)) && 1 == a24) && !(6 == a21)) && 80 < a12)) || ((!(a15 == 9) && 1 == a24) && !(a15 == 6))) || 0 < \old(a12) + 49) || (((1 == a24 && a21 == 10) && !(a15 == 6)) && 80 < a12)) || ((9 <= a21 && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24))) && (((!(10 == a21) && 1 == a24) && (((!(10 == \old(a21)) || 0 <= \old(a12) + 42) || !(8 == \old(a15))) || !(1 == \old(a24)))) && !(6 == a21)) && !(a15 == 6)) && 80 < a12)) || !(1 == \old(a24))) || (81 <= a12 && 7 == a21 && 1 == a24)) || ((!(a21 == 9) && a12 <= 80) && ((!(a15 == 9) && !(10 == a21)) && 1 == a24) && !(6 == a21))) || !(8 == \old(a15))) || (11 < a12 && a12 <= 76 && (!(a15 == 9) && 1 == a24) && a21 <= 6)) || (((!(a15 == 9) && 1 == a24) && a12 <= 11) && !(6 == a21))) || ((a12 <= 73282 && (!(a15 == 9) && 1 == a24) && a21 <= 6) && 12849 <= a12)) || 7 < \old(a21)) || (((!(a15 == 9) && a21 <= 7) && a12 + 49 <= 0) && !(a15 == 6))) || \old(a21) < 7) || ((1 == a24 && !(a15 == 6)) && 12849 <= a12)) || (8 == a21 && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24))) && (((!(10 == a21) && 1 == a24) && (((!(10 == \old(a21)) || 0 <= \old(a12) + 42) || !(8 == \old(a15))) || !(1 == \old(a24)))) && !(6 == a21)) && !(a15 == 6)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. SAFE Result, 201.8s OverallTime, 15 OverallIterations, 12 TraceHistogramMax, 111.4s AutomataDifference, 0.0s DeadEndRemovalTime, 33.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 1800 SDtfs, 42524 SDslu, 4732 SDs, 0 SdLazy, 57994 SolverSat, 8424 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 68.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26816 GetRequests, 26178 SyntacticMatches, 80 SemanticMatches, 558 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17488 ImplicationChecksByTransitivity, 40.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18206occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.5s AutomataMinimizationTime, 15 MinimizatonAttempts, 8959 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 528 PreInvPairs, 768 NumberOfFragments, 1069 HoareAnnotationTreeSize, 528 FomulaSimplifications, 1638045 FormulaSimplificationTreeSizeReduction, 8.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1215625 FormulaSimplificationTreeSizeReductionInter, 24.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.6s SsaConstructionTime, 5.4s SatisfiabilityAnalysisTime, 38.6s InterpolantComputationTime, 21680 NumberOfCodeBlocks, 21680 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 34665 ConstructedInterpolants, 12 QuantifiedInterpolants, 113120013 SizeOfPredicates, 65 NumberOfNonLiveVariables, 19382 ConjunctsInSsa, 326 ConjunctsInUnsatCore, 55 InterpolantComputations, 6 PerfectInterpolantSequences, 77449/87097 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label24_true-unreach-call_false-termination.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_11-52-43-611.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label24_true-unreach-call_false-termination.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_11-52-43-611.csv Received shutdown request...