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_label23_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:49:14,987 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:49:14,991 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:49:15,010 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:49:15,011 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:49:15,012 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:49:15,014 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:49:15,016 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:49:15,019 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:49:15,027 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:49:15,028 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:49:15,029 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:49:15,031 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:49:15,033 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:49:15,034 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:49:15,038 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:49:15,039 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:49:15,045 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:49:15,051 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:49:15,054 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:49:15,055 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:49:15,056 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:49:15,060 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 11:49:15,060 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 11:49:15,060 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 11:49:15,062 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 11:49:15,063 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 11:49:15,064 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 11:49:15,065 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 11:49:15,069 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 11:49:15,069 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 11:49:15,070 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-18 11:49:15,075 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 11:49:15,107 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:49:15,107 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:49:15,109 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:49:15,109 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:49:15,109 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:49:15,112 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:49:15,112 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:49:15,112 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:49:15,113 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:49:15,113 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:49:15,113 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:49:15,113 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:49:15,114 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:49:15,116 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:49:15,116 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:49:15,116 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:49:15,116 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:49:15,116 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:49:15,117 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:49:15,117 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:49:15,119 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:49:15,119 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:49:15,119 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:49:15,119 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:49:15,120 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:49:15,120 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:49:15,120 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:49:15,121 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:49:15,121 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:49:15,121 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:49:15,121 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:49:15,122 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:49:15,122 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:49:15,122 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:49:15,198 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:49:15,216 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:49:15,224 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:49:15,226 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:49:15,227 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:49:15,228 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label23_true-unreach-call_false-termination.c [2018-09-18 11:49:15,591 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c17e5c1f/51bdbeb4692846aa9cbb1989b38e1e4a/FLAGb6af7efba [2018-09-18 11:49:15,869 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:49:15,870 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label23_true-unreach-call_false-termination.c [2018-09-18 11:49:15,898 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c17e5c1f/51bdbeb4692846aa9cbb1989b38e1e4a/FLAGb6af7efba [2018-09-18 11:49:15,931 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c17e5c1f/51bdbeb4692846aa9cbb1989b38e1e4a [2018-09-18 11:49:15,945 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:49:15,949 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:49:15,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:49:15,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:49:15,961 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:49:15,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:49:15" (1/1) ... [2018-09-18 11:49:15,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14a7f94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:15, skipping insertion in model container [2018-09-18 11:49:15,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:49:15" (1/1) ... [2018-09-18 11:49:15,980 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:49:16,548 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:49:16,569 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:49:16,703 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:49:16,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:16 WrapperNode [2018-09-18 11:49:16,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:49:16,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:49:16,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:49:16,751 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:49:16,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:16" (1/1) ... [2018-09-18 11:49:16,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:16" (1/1) ... [2018-09-18 11:49:16,878 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:49:16,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:49:16,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:49:16,879 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:49:17,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:16" (1/1) ... [2018-09-18 11:49:17,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:16" (1/1) ... [2018-09-18 11:49:17,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:16" (1/1) ... [2018-09-18 11:49:17,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:16" (1/1) ... [2018-09-18 11:49:17,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:16" (1/1) ... [2018-09-18 11:49:17,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:16" (1/1) ... [2018-09-18 11:49:17,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:16" (1/1) ... [2018-09-18 11:49:17,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:49:17,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:49:17,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:49:17,163 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:49:17,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:16" (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 11:49:17,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:49:17,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:49:17,227 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:49:17,227 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:49:17,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:49:17,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:49:17,228 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:49:17,228 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:49:21,031 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:49:21,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:49:21 BoogieIcfgContainer [2018-09-18 11:49:21,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:49:21,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:49:21,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:49:21,037 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:49:21,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:49:15" (1/3) ... [2018-09-18 11:49:21,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d576da 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 11:49:21,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:16" (2/3) ... [2018-09-18 11:49:21,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d576da 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 11:49:21,039 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 11:49:21,041 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label23_true-unreach-call_false-termination.c [2018-09-18 11:49:21,051 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:49:21,061 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:49:21,118 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:49:21,119 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:49:21,119 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:49:21,120 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:49:21,120 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:49:21,120 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:49:21,120 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:49:21,121 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:49:21,121 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:49:21,149 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-09-18 11:49:21,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-09-18 11:49:21,158 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:49:21,159 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] [2018-09-18 11:49:21,161 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:49:21,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1395557711, now seen corresponding path program 1 times [2018-09-18 11:49:21,170 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:49:21,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:21,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:21,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:21,225 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:49:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:21,625 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:49:21,699 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 11:49:21,702 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:49:21,702 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 11:49:21,702 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:49:21,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:49:21,724 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:49:21,725 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:49:21,728 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-09-18 11:49:23,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:49:23,510 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-09-18 11:49:23,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:49:23,513 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2018-09-18 11:49:23,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:49:23,533 INFO L225 Difference]: With dead ends: 691 [2018-09-18 11:49:23,534 INFO L226 Difference]: Without dead ends: 434 [2018-09-18 11:49:23,542 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:49:23,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-09-18 11:49:23,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-09-18 11:49:23,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-09-18 11:49:23,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 765 transitions. [2018-09-18 11:49:23,623 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 765 transitions. Word has length 39 [2018-09-18 11:49:23,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:49:23,624 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 765 transitions. [2018-09-18 11:49:23,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:49:23,624 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 765 transitions. [2018-09-18 11:49:23,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-09-18 11:49:23,631 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:49:23,631 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:49:23,632 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:49:23,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1621257519, now seen corresponding path program 1 times [2018-09-18 11:49:23,632 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:49:23,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:23,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:23,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:23,634 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:49:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:23,932 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:49:23,933 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:49:23,933 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:49:23,933 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:49:23,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:49:23,936 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:49:23,936 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:49:23,937 INFO L87 Difference]: Start difference. First operand 434 states and 765 transitions. Second operand 6 states. [2018-09-18 11:49:26,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:49:26,289 INFO L93 Difference]: Finished difference Result 1062 states and 1897 transitions. [2018-09-18 11:49:26,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:49:26,293 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2018-09-18 11:49:26,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:49:26,300 INFO L225 Difference]: With dead ends: 1062 [2018-09-18 11:49:26,300 INFO L226 Difference]: Without dead ends: 634 [2018-09-18 11:49:26,305 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 11:49:26,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2018-09-18 11:49:26,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 625. [2018-09-18 11:49:26,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2018-09-18 11:49:26,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 1019 transitions. [2018-09-18 11:49:26,353 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 1019 transitions. Word has length 114 [2018-09-18 11:49:26,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:49:26,354 INFO L480 AbstractCegarLoop]: Abstraction has 625 states and 1019 transitions. [2018-09-18 11:49:26,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:49:26,354 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 1019 transitions. [2018-09-18 11:49:26,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-09-18 11:49:26,358 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:49:26,358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:49:26,358 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:49:26,359 INFO L82 PathProgramCache]: Analyzing trace with hash -985362584, now seen corresponding path program 1 times [2018-09-18 11:49:26,359 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:49:26,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:26,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:26,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:26,361 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:49:26,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:26,840 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:49:26,841 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:49:26,841 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:49:26,841 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:49:26,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:49:26,842 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:49:26,843 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:49:26,844 INFO L87 Difference]: Start difference. First operand 625 states and 1019 transitions. Second operand 6 states. [2018-09-18 11:49:28,143 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-09-18 11:49:33,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:49:33,112 INFO L93 Difference]: Finished difference Result 1819 states and 2988 transitions. [2018-09-18 11:49:33,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-18 11:49:33,113 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2018-09-18 11:49:33,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:49:33,121 INFO L225 Difference]: With dead ends: 1819 [2018-09-18 11:49:33,121 INFO L226 Difference]: Without dead ends: 1200 [2018-09-18 11:49:33,126 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-18 11:49:33,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2018-09-18 11:49:33,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 1140. [2018-09-18 11:49:33,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1140 states. [2018-09-18 11:49:33,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1733 transitions. [2018-09-18 11:49:33,191 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1733 transitions. Word has length 123 [2018-09-18 11:49:33,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:49:33,192 INFO L480 AbstractCegarLoop]: Abstraction has 1140 states and 1733 transitions. [2018-09-18 11:49:33,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:49:33,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1733 transitions. [2018-09-18 11:49:33,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-09-18 11:49:33,208 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:49:33,209 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:49:33,209 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:49:33,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1921964902, now seen corresponding path program 1 times [2018-09-18 11:49:33,210 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:49:33,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:33,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:33,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:33,212 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:49:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:34,171 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 146 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:49:34,172 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:49:34,172 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 11:49:34,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:34,183 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:49:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:34,281 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:49:34,983 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-18 11:49:35,129 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 96 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:49:35,129 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:49:35,258 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-18 11:49:35,368 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-18 11:49:35,516 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2018-09-18 11:49:35,965 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-18 11:49:36,297 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 69 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:49:36,320 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:49:36,320 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 3 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 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:49:36,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:36,341 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:49:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:36,489 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:49:36,854 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 96 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:49:36,855 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:49:37,482 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 69 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:49:37,484 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:49:37,484 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8, 8, 8] total 26 [2018-09-18 11:49:37,484 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:49:37,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-18 11:49:37,486 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-18 11:49:37,486 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2018-09-18 11:49:37,487 INFO L87 Difference]: Start difference. First operand 1140 states and 1733 transitions. Second operand 15 states. [2018-09-18 11:49:44,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:49:44,665 INFO L93 Difference]: Finished difference Result 3259 states and 4983 transitions. [2018-09-18 11:49:44,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-18 11:49:44,666 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 208 [2018-09-18 11:49:44,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:49:44,678 INFO L225 Difference]: With dead ends: 3259 [2018-09-18 11:49:44,679 INFO L226 Difference]: Without dead ends: 1926 [2018-09-18 11:49:44,688 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 859 GetRequests, 815 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=415, Invalid=1307, Unknown=0, NotChecked=0, Total=1722 [2018-09-18 11:49:44,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states. [2018-09-18 11:49:44,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1617. [2018-09-18 11:49:44,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1617 states. [2018-09-18 11:49:44,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2114 transitions. [2018-09-18 11:49:44,752 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2114 transitions. Word has length 208 [2018-09-18 11:49:44,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:49:44,753 INFO L480 AbstractCegarLoop]: Abstraction has 1617 states and 2114 transitions. [2018-09-18 11:49:44,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-18 11:49:44,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2114 transitions. [2018-09-18 11:49:44,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-09-18 11:49:44,758 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:49:44,758 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:49:44,759 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:49:44,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1530501453, now seen corresponding path program 1 times [2018-09-18 11:49:44,759 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:49:44,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:44,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:44,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:44,761 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:49:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:45,644 WARN L178 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 13 [2018-09-18 11:49:45,881 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-18 11:49:46,318 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 113 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:49:46,318 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:49:46,318 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:49:46,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:46,329 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:49:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:46,400 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:49:46,929 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-09-18 11:49:46,977 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-09-18 11:49:46,977 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:49:47,213 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-18 11:49:47,466 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 64 proven. 79 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:49:47,487 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:49:47,488 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [9, 5] total 13 [2018-09-18 11:49:47,488 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:49:47,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:49:47,489 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:49:47,489 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-09-18 11:49:47,489 INFO L87 Difference]: Start difference. First operand 1617 states and 2114 transitions. Second operand 5 states. [2018-09-18 11:49:49,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:49:49,772 INFO L93 Difference]: Finished difference Result 6361 states and 8359 transitions. [2018-09-18 11:49:49,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:49:49,772 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 233 [2018-09-18 11:49:49,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:49:49,795 INFO L225 Difference]: With dead ends: 6361 [2018-09-18 11:49:49,795 INFO L226 Difference]: Without dead ends: 4750 [2018-09-18 11:49:49,807 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 462 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-09-18 11:49:49,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4750 states. [2018-09-18 11:49:49,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4750 to 4632. [2018-09-18 11:49:49,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2018-09-18 11:49:49,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 5729 transitions. [2018-09-18 11:49:49,936 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 5729 transitions. Word has length 233 [2018-09-18 11:49:49,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:49:49,937 INFO L480 AbstractCegarLoop]: Abstraction has 4632 states and 5729 transitions. [2018-09-18 11:49:49,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:49:49,937 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 5729 transitions. [2018-09-18 11:49:49,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2018-09-18 11:49:49,944 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:49:49,945 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:49:49,945 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:49:49,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1076420551, now seen corresponding path program 1 times [2018-09-18 11:49:49,946 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:49:49,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:49,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:49,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:49,947 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:49:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:50,820 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 265 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-09-18 11:49:50,820 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:49:50,820 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 11:49:50,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:50,829 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:49:50,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:50,918 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:49:51,122 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 265 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-09-18 11:49:51,123 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:49:51,632 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 265 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-09-18 11:49:51,653 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:49:51,654 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 6 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 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:49:51,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:51,671 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:49:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:51,879 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:49:51,961 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 261 proven. 6 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-09-18 11:49:51,961 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:49:52,422 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 265 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-09-18 11:49:52,424 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:49:52,424 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5, 5, 5] total 8 [2018-09-18 11:49:52,425 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:49:52,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-18 11:49:52,426 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-18 11:49:52,426 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:49:52,426 INFO L87 Difference]: Start difference. First operand 4632 states and 5729 transitions. Second operand 7 states. [2018-09-18 11:49:55,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:49:55,250 INFO L93 Difference]: Finished difference Result 12523 states and 15946 transitions. [2018-09-18 11:49:55,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-18 11:49:55,252 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 344 [2018-09-18 11:49:55,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:49:55,289 INFO L225 Difference]: With dead ends: 12523 [2018-09-18 11:49:55,289 INFO L226 Difference]: Without dead ends: 7897 [2018-09-18 11:49:55,321 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1395 GetRequests, 1373 SyntacticMatches, 11 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2018-09-18 11:49:55,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7897 states. [2018-09-18 11:49:55,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7897 to 7693. [2018-09-18 11:49:55,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7693 states. [2018-09-18 11:49:55,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7693 states to 7693 states and 9152 transitions. [2018-09-18 11:49:55,630 INFO L78 Accepts]: Start accepts. Automaton has 7693 states and 9152 transitions. Word has length 344 [2018-09-18 11:49:55,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:49:55,631 INFO L480 AbstractCegarLoop]: Abstraction has 7693 states and 9152 transitions. [2018-09-18 11:49:55,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-18 11:49:55,632 INFO L276 IsEmpty]: Start isEmpty. Operand 7693 states and 9152 transitions. [2018-09-18 11:49:55,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2018-09-18 11:49:55,649 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:49:55,650 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-09-18 11:49:55,650 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:49:55,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1614805097, now seen corresponding path program 1 times [2018-09-18 11:49:55,651 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:49:55,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:55,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:55,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:55,652 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:49:55,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:56,712 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 417 proven. 160 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-09-18 11:49:56,712 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:49:56,712 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:49:56,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:56,720 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:49:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:56,830 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:49:57,264 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-18 11:49:57,551 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 384 proven. 2 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2018-09-18 11:49:57,551 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:49:58,059 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 384 proven. 2 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2018-09-18 11:49:58,081 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:49:58,081 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 8 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 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:49:58,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:58,098 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:49:58,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:58,353 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:49:58,585 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 230 proven. 156 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2018-09-18 11:49:58,585 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:49:59,562 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 149 proven. 237 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2018-09-18 11:49:59,564 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:49:59,565 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5, 8, 8] total 16 [2018-09-18 11:49:59,565 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:49:59,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-18 11:49:59,566 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-18 11:49:59,567 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2018-09-18 11:49:59,567 INFO L87 Difference]: Start difference. First operand 7693 states and 9152 transitions. Second operand 13 states. [2018-09-18 11:50:03,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:50:03,581 INFO L93 Difference]: Finished difference Result 15956 states and 19426 transitions. [2018-09-18 11:50:03,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-18 11:50:03,581 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 429 [2018-09-18 11:50:03,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:50:03,625 INFO L225 Difference]: With dead ends: 15956 [2018-09-18 11:50:03,626 INFO L226 Difference]: Without dead ends: 8066 [2018-09-18 11:50:03,659 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1744 GetRequests, 1706 SyntacticMatches, 15 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=171, Invalid=429, Unknown=0, NotChecked=0, Total=600 [2018-09-18 11:50:03,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8066 states. [2018-09-18 11:50:03,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8066 to 7470. [2018-09-18 11:50:03,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7470 states. [2018-09-18 11:50:03,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7470 states to 7470 states and 8725 transitions. [2018-09-18 11:50:03,852 INFO L78 Accepts]: Start accepts. Automaton has 7470 states and 8725 transitions. Word has length 429 [2018-09-18 11:50:03,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:50:03,853 INFO L480 AbstractCegarLoop]: Abstraction has 7470 states and 8725 transitions. [2018-09-18 11:50:03,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-18 11:50:03,854 INFO L276 IsEmpty]: Start isEmpty. Operand 7470 states and 8725 transitions. [2018-09-18 11:50:03,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2018-09-18 11:50:03,872 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:50:03,872 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:50:03,873 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:50:03,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1217933949, now seen corresponding path program 2 times [2018-09-18 11:50:03,873 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:50:03,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:03,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:03,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:03,874 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:50:03,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:04,289 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-09-18 11:50:04,578 WARN L178 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 10 [2018-09-18 11:50:05,552 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 404 proven. 307 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:50:05,552 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:05,552 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:50:05,560 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-18 11:50:05,560 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-18 11:50:05,682 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-18 11:50:05,682 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 11:50:05,689 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:05,875 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 384 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2018-09-18 11:50:05,875 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:06,652 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 384 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2018-09-18 11:50:06,673 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:06,674 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 10 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 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:50:06,689 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-18 11:50:06,689 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-18 11:50:06,971 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-18 11:50:06,972 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 11:50:06,984 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:07,475 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 380 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2018-09-18 11:50:07,475 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:08,260 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 131 proven. 255 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2018-09-18 11:50:08,263 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:50:08,263 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 5, 5, 8, 8] total 30 [2018-09-18 11:50:08,264 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:50:08,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-09-18 11:50:08,265 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-09-18 11:50:08,266 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=732, Unknown=0, NotChecked=0, Total=870 [2018-09-18 11:50:08,266 INFO L87 Difference]: Start difference. First operand 7470 states and 8725 transitions. Second operand 21 states. [2018-09-18 11:50:14,753 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 22 [2018-09-18 11:50:18,280 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2018-09-18 11:50:19,728 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2018-09-18 11:50:22,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:50:22,782 INFO L93 Difference]: Finished difference Result 16025 states and 19696 transitions. [2018-09-18 11:50:22,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-09-18 11:50:22,783 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 455 [2018-09-18 11:50:22,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:50:22,822 INFO L225 Difference]: With dead ends: 16025 [2018-09-18 11:50:22,822 INFO L226 Difference]: Without dead ends: 8561 [2018-09-18 11:50:22,852 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1950 GetRequests, 1856 SyntacticMatches, 4 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2467 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=1549, Invalid=6823, Unknown=0, NotChecked=0, Total=8372 [2018-09-18 11:50:22,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8561 states. [2018-09-18 11:50:23,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8561 to 6693. [2018-09-18 11:50:23,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6693 states. [2018-09-18 11:50:23,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6693 states to 6693 states and 7769 transitions. [2018-09-18 11:50:23,021 INFO L78 Accepts]: Start accepts. Automaton has 6693 states and 7769 transitions. Word has length 455 [2018-09-18 11:50:23,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:50:23,022 INFO L480 AbstractCegarLoop]: Abstraction has 6693 states and 7769 transitions. [2018-09-18 11:50:23,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-09-18 11:50:23,022 INFO L276 IsEmpty]: Start isEmpty. Operand 6693 states and 7769 transitions. [2018-09-18 11:50:23,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2018-09-18 11:50:23,039 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:50:23,039 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 11:50:23,040 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:50:23,040 INFO L82 PathProgramCache]: Analyzing trace with hash -2143547836, now seen corresponding path program 1 times [2018-09-18 11:50:23,040 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:50:23,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:23,041 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-18 11:50:23,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:23,041 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:50:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:23,469 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-09-18 11:50:23,712 WARN L178 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 10 [2018-09-18 11:50:24,721 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 299 proven. 412 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:50:24,721 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:24,722 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:50:24,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:24,730 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:24,855 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:25,185 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 384 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2018-09-18 11:50:25,185 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:25,307 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-18 11:50:26,081 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 384 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2018-09-18 11:50:26,103 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:26,104 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 12 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 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:50:26,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:26,120 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:26,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:26,436 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:26,981 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 380 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2018-09-18 11:50:26,982 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:27,967 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 131 proven. 255 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2018-09-18 11:50:27,969 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:50:27,970 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 5, 5, 8, 8] total 34 [2018-09-18 11:50:27,970 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:50:27,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-09-18 11:50:27,971 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-09-18 11:50:27,972 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=983, Unknown=0, NotChecked=0, Total=1122 [2018-09-18 11:50:27,972 INFO L87 Difference]: Start difference. First operand 6693 states and 7769 transitions. Second operand 21 states. [2018-09-18 11:50:38,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:50:38,591 INFO L93 Difference]: Finished difference Result 17062 states and 19978 transitions. [2018-09-18 11:50:38,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-09-18 11:50:38,594 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 518 [2018-09-18 11:50:38,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:50:38,634 INFO L225 Difference]: With dead ends: 17062 [2018-09-18 11:50:38,635 INFO L226 Difference]: Without dead ends: 10375 [2018-09-18 11:50:38,659 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2149 GetRequests, 2082 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1065 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=837, Invalid=3719, Unknown=0, NotChecked=0, Total=4556 [2018-09-18 11:50:38,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10375 states. [2018-09-18 11:50:38,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10375 to 10009. [2018-09-18 11:50:38,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10009 states. [2018-09-18 11:50:38,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10009 states to 10009 states and 11089 transitions. [2018-09-18 11:50:38,869 INFO L78 Accepts]: Start accepts. Automaton has 10009 states and 11089 transitions. Word has length 518 [2018-09-18 11:50:38,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:50:38,870 INFO L480 AbstractCegarLoop]: Abstraction has 10009 states and 11089 transitions. [2018-09-18 11:50:38,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-09-18 11:50:38,870 INFO L276 IsEmpty]: Start isEmpty. Operand 10009 states and 11089 transitions. [2018-09-18 11:50:38,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2018-09-18 11:50:38,893 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:50:38,894 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, 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, 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, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:50:38,894 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:50:38,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1329608886, now seen corresponding path program 1 times [2018-09-18 11:50:38,895 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:50:38,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:38,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:38,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:38,896 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:50:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:39,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 515 proven. 83 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2018-09-18 11:50:39,651 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:39,651 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:50:39,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:39,658 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:39,808 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:40,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 803 proven. 2 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2018-09-18 11:50:40,320 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:40,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 515 proven. 83 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2018-09-18 11:50:40,620 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:40,620 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 14 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 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:50:40,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:40,636 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:40,984 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:41,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 803 proven. 2 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2018-09-18 11:50:41,195 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:41,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 515 proven. 83 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2018-09-18 11:50:41,655 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:50:41,656 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 9 [2018-09-18 11:50:41,656 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:50:41,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-18 11:50:41,657 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-18 11:50:41,657 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:50:41,657 INFO L87 Difference]: Start difference. First operand 10009 states and 11089 transitions. Second operand 7 states. [2018-09-18 11:50:45,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:50:45,183 INFO L93 Difference]: Finished difference Result 29243 states and 36086 transitions. [2018-09-18 11:50:45,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-18 11:50:45,184 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 577 [2018-09-18 11:50:45,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:50:45,307 INFO L225 Difference]: With dead ends: 29243 [2018-09-18 11:50:45,308 INFO L226 Difference]: Without dead ends: 19265 [2018-09-18 11:50:45,383 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2324 GetRequests, 2309 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-09-18 11:50:45,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19265 states. [2018-09-18 11:50:45,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19265 to 18760. [2018-09-18 11:50:45,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18760 states. [2018-09-18 11:50:45,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18760 states to 18760 states and 21010 transitions. [2018-09-18 11:50:45,875 INFO L78 Accepts]: Start accepts. Automaton has 18760 states and 21010 transitions. Word has length 577 [2018-09-18 11:50:45,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:50:45,876 INFO L480 AbstractCegarLoop]: Abstraction has 18760 states and 21010 transitions. [2018-09-18 11:50:45,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-18 11:50:45,877 INFO L276 IsEmpty]: Start isEmpty. Operand 18760 states and 21010 transitions. [2018-09-18 11:50:45,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 619 [2018-09-18 11:50:45,890 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:50:45,891 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, 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, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:50:45,891 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:50:45,891 INFO L82 PathProgramCache]: Analyzing trace with hash -43365718, now seen corresponding path program 1 times [2018-09-18 11:50:45,891 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:50:45,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:45,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:45,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:45,893 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:50:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:47,371 WARN L178 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2018-09-18 11:50:47,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1473 backedges. 677 proven. 306 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2018-09-18 11:50:47,984 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:47,985 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:50:47,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:47,992 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:48,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:48,136 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:48,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1473 backedges. 610 proven. 2 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2018-09-18 11:50:48,711 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:48,956 WARN L178 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-18 11:50:49,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1473 backedges. 610 proven. 2 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2018-09-18 11:50:49,681 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:49,681 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 16 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 16 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:50:49,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:49,701 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:50,037 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:50,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1473 backedges. 602 proven. 10 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2018-09-18 11:50:50,673 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:50,845 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2018-09-18 11:50:51,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1473 backedges. 197 proven. 415 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2018-09-18 11:50:51,848 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:50:51,848 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5, 8, 8] total 28 [2018-09-18 11:50:51,848 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:50:51,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-18 11:50:51,849 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-18 11:50:51,850 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=623, Unknown=0, NotChecked=0, Total=756 [2018-09-18 11:50:51,850 INFO L87 Difference]: Start difference. First operand 18760 states and 21010 transitions. Second operand 17 states. [2018-09-18 11:50:56,232 WARN L178 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 22 [2018-09-18 11:51:00,292 WARN L178 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 28 [2018-09-18 11:51:00,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:51:00,533 INFO L93 Difference]: Finished difference Result 37981 states and 44034 transitions. [2018-09-18 11:51:00,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-09-18 11:51:00,533 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 618 [2018-09-18 11:51:00,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:51:00,604 INFO L225 Difference]: With dead ends: 37981 [2018-09-18 11:51:00,604 INFO L226 Difference]: Without dead ends: 18532 [2018-09-18 11:51:00,661 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2555 GetRequests, 2477 SyntacticMatches, 8 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1421 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=1093, Invalid=4019, Unknown=0, NotChecked=0, Total=5112 [2018-09-18 11:51:00,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18532 states. [2018-09-18 11:51:00,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18532 to 18090. [2018-09-18 11:51:00,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18090 states. [2018-09-18 11:51:01,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18090 states to 18090 states and 19944 transitions. [2018-09-18 11:51:01,056 INFO L78 Accepts]: Start accepts. Automaton has 18090 states and 19944 transitions. Word has length 618 [2018-09-18 11:51:01,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:51:01,057 INFO L480 AbstractCegarLoop]: Abstraction has 18090 states and 19944 transitions. [2018-09-18 11:51:01,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-09-18 11:51:01,057 INFO L276 IsEmpty]: Start isEmpty. Operand 18090 states and 19944 transitions. [2018-09-18 11:51:01,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 984 [2018-09-18 11:51:01,155 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:51:01,155 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, 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, 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, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-18 11:51:01,156 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:51:01,156 INFO L82 PathProgramCache]: Analyzing trace with hash 466271528, now seen corresponding path program 1 times [2018-09-18 11:51:01,156 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:51:01,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:01,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:01,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:01,158 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:51:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:02,219 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 770 proven. 260 refuted. 0 times theorem prover too weak. 1546 trivial. 0 not checked. [2018-09-18 11:51:02,219 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:51:02,219 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:51:02,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:02,228 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:51:02,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:02,467 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:03,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 1763 proven. 2 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2018-09-18 11:51:03,050 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:51:03,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 770 proven. 260 refuted. 0 times theorem prover too weak. 1546 trivial. 0 not checked. [2018-09-18 11:51:03,597 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:51:03,597 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 18 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 18 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:51:03,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:03,612 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:51:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:04,150 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:04,883 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 1763 proven. 2 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2018-09-18 11:51:04,883 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:51:05,447 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 770 proven. 260 refuted. 0 times theorem prover too weak. 1546 trivial. 0 not checked. [2018-09-18 11:51:05,450 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:51:05,451 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 9 [2018-09-18 11:51:05,451 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:51:05,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-18 11:51:05,453 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-18 11:51:05,453 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:51:05,454 INFO L87 Difference]: Start difference. First operand 18090 states and 19944 transitions. Second operand 7 states. [2018-09-18 11:51:08,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:51:08,723 INFO L93 Difference]: Finished difference Result 37917 states and 42024 transitions. [2018-09-18 11:51:08,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-18 11:51:08,724 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 983 [2018-09-18 11:51:08,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:51:08,777 INFO L225 Difference]: With dead ends: 37917 [2018-09-18 11:51:08,778 INFO L226 Difference]: Without dead ends: 19858 [2018-09-18 11:51:08,829 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3948 GetRequests, 3933 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-09-18 11:51:08,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19858 states. [2018-09-18 11:51:09,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19858 to 19399. [2018-09-18 11:51:09,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19399 states. [2018-09-18 11:51:09,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19399 states to 19399 states and 21162 transitions. [2018-09-18 11:51:09,173 INFO L78 Accepts]: Start accepts. Automaton has 19399 states and 21162 transitions. Word has length 983 [2018-09-18 11:51:09,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:51:09,174 INFO L480 AbstractCegarLoop]: Abstraction has 19399 states and 21162 transitions. [2018-09-18 11:51:09,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-18 11:51:09,174 INFO L276 IsEmpty]: Start isEmpty. Operand 19399 states and 21162 transitions. [2018-09-18 11:51:09,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1061 [2018-09-18 11:51:09,235 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:51:09,236 INFO L376 BasicCegarLoop]: trace histogram [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, 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, 8, 8, 8, 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, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-18 11:51:09,236 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:51:09,237 INFO L82 PathProgramCache]: Analyzing trace with hash 864278556, now seen corresponding path program 1 times [2018-09-18 11:51:09,237 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:51:09,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:09,238 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:09,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:09,238 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:51:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:10,746 INFO L134 CoverageAnalysis]: Checked inductivity of 3147 backedges. 631 proven. 224 refuted. 0 times theorem prover too weak. 2292 trivial. 0 not checked. [2018-09-18 11:51:10,747 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:51:10,747 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:51:10,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:10,757 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:51:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:11,007 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:11,439 INFO L134 CoverageAnalysis]: Checked inductivity of 3147 backedges. 2037 proven. 2 refuted. 0 times theorem prover too weak. 1108 trivial. 0 not checked. [2018-09-18 11:51:11,439 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:51:12,028 INFO L134 CoverageAnalysis]: Checked inductivity of 3147 backedges. 631 proven. 224 refuted. 0 times theorem prover too weak. 2292 trivial. 0 not checked. [2018-09-18 11:51:12,050 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:51:12,050 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 20 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 20 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:51:12,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:12,066 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:51:12,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:12,642 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:12,981 INFO L134 CoverageAnalysis]: Checked inductivity of 3147 backedges. 2037 proven. 2 refuted. 0 times theorem prover too weak. 1108 trivial. 0 not checked. [2018-09-18 11:51:12,982 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:51:13,599 INFO L134 CoverageAnalysis]: Checked inductivity of 3147 backedges. 631 proven. 224 refuted. 0 times theorem prover too weak. 2292 trivial. 0 not checked. [2018-09-18 11:51:13,603 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:51:13,603 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5, 5, 5] total 11 [2018-09-18 11:51:13,603 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:51:13,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-18 11:51:13,605 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-18 11:51:13,605 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:51:13,606 INFO L87 Difference]: Start difference. First operand 19399 states and 21162 transitions. Second operand 10 states. [2018-09-18 11:51:16,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:51:16,991 INFO L93 Difference]: Finished difference Result 40165 states and 44362 transitions. [2018-09-18 11:51:16,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-18 11:51:16,991 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1060 [2018-09-18 11:51:16,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:51:17,031 INFO L225 Difference]: With dead ends: 40165 [2018-09-18 11:51:17,031 INFO L226 Difference]: Without dead ends: 20797 [2018-09-18 11:51:17,069 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4272 GetRequests, 4246 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=165, Invalid=387, Unknown=0, NotChecked=0, Total=552 [2018-09-18 11:51:17,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20797 states. [2018-09-18 11:51:17,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20797 to 20433. [2018-09-18 11:51:17,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20433 states. [2018-09-18 11:51:17,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20433 states to 20433 states and 21973 transitions. [2018-09-18 11:51:17,376 INFO L78 Accepts]: Start accepts. Automaton has 20433 states and 21973 transitions. Word has length 1060 [2018-09-18 11:51:17,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:51:17,376 INFO L480 AbstractCegarLoop]: Abstraction has 20433 states and 21973 transitions. [2018-09-18 11:51:17,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-18 11:51:17,376 INFO L276 IsEmpty]: Start isEmpty. Operand 20433 states and 21973 transitions. [2018-09-18 11:51:17,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1161 [2018-09-18 11:51:17,415 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:51:17,416 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, 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, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 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, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:51:17,416 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:51:17,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1509170803, now seen corresponding path program 1 times [2018-09-18 11:51:17,417 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:51:17,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:17,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:17,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:17,418 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:51:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:19,154 INFO L134 CoverageAnalysis]: Checked inductivity of 3866 backedges. 1691 proven. 166 refuted. 0 times theorem prover too weak. 2009 trivial. 0 not checked. [2018-09-18 11:51:19,154 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:51:19,154 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:51:19,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:19,162 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:51:19,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:19,434 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:20,170 INFO L134 CoverageAnalysis]: Checked inductivity of 3866 backedges. 2286 proven. 6 refuted. 0 times theorem prover too weak. 1574 trivial. 0 not checked. [2018-09-18 11:51:20,171 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:51:21,220 INFO L134 CoverageAnalysis]: Checked inductivity of 3866 backedges. 1691 proven. 339 refuted. 0 times theorem prover too weak. 1836 trivial. 0 not checked. [2018-09-18 11:51:21,250 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:51:21,250 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 22 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 22 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:51:21,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:21,274 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:51:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:21,893 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:22,543 INFO L134 CoverageAnalysis]: Checked inductivity of 3866 backedges. 2286 proven. 6 refuted. 0 times theorem prover too weak. 1574 trivial. 0 not checked. [2018-09-18 11:51:22,543 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:51:23,831 INFO L134 CoverageAnalysis]: Checked inductivity of 3866 backedges. 1691 proven. 339 refuted. 0 times theorem prover too weak. 1836 trivial. 0 not checked. [2018-09-18 11:51:23,834 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:51:23,835 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8, 7, 8] total 15 [2018-09-18 11:51:23,835 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:51:23,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:51:23,836 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:51:23,837 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2018-09-18 11:51:23,837 INFO L87 Difference]: Start difference. First operand 20433 states and 21973 transitions. Second operand 9 states. [2018-09-18 11:51:27,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:51:27,629 INFO L93 Difference]: Finished difference Result 45246 states and 48716 transitions. [2018-09-18 11:51:27,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-18 11:51:27,629 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1160 [2018-09-18 11:51:27,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:51:27,678 INFO L225 Difference]: With dead ends: 45246 [2018-09-18 11:51:27,679 INFO L226 Difference]: Without dead ends: 24844 [2018-09-18 11:51:27,717 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4656 GetRequests, 4636 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2018-09-18 11:51:27,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24844 states. [2018-09-18 11:51:28,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24844 to 24364. [2018-09-18 11:51:28,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24364 states. [2018-09-18 11:51:28,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24364 states to 24364 states and 26217 transitions. [2018-09-18 11:51:28,061 INFO L78 Accepts]: Start accepts. Automaton has 24364 states and 26217 transitions. Word has length 1160 [2018-09-18 11:51:28,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:51:28,062 INFO L480 AbstractCegarLoop]: Abstraction has 24364 states and 26217 transitions. [2018-09-18 11:51:28,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:51:28,062 INFO L276 IsEmpty]: Start isEmpty. Operand 24364 states and 26217 transitions. [2018-09-18 11:51:28,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1423 [2018-09-18 11:51:28,082 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:51:28,082 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, 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, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 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, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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 11:51:28,083 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:51:28,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1958798091, now seen corresponding path program 1 times [2018-09-18 11:51:28,083 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:51:28,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:28,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:28,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:28,084 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:51:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:29,080 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-18 11:51:29,586 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-18 11:51:31,648 INFO L134 CoverageAnalysis]: Checked inductivity of 5993 backedges. 1225 proven. 925 refuted. 0 times theorem prover too weak. 3843 trivial. 0 not checked. [2018-09-18 11:51:31,649 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:51:31,649 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 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:51:31,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:31,658 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:51:31,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:32,006 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:32,917 INFO L134 CoverageAnalysis]: Checked inductivity of 5993 backedges. 1208 proven. 2 refuted. 0 times theorem prover too weak. 4783 trivial. 0 not checked. [2018-09-18 11:51:32,918 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:51:33,293 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-09-18 11:51:34,697 INFO L134 CoverageAnalysis]: Checked inductivity of 5993 backedges. 1208 proven. 2 refuted. 0 times theorem prover too weak. 4783 trivial. 0 not checked. [2018-09-18 11:51:34,718 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:51:34,718 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 24 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 24 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:51:34,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:34,735 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:51:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:35,517 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:36,451 INFO L134 CoverageAnalysis]: Checked inductivity of 5993 backedges. 1210 proven. 60 refuted. 0 times theorem prover too weak. 4723 trivial. 0 not checked. [2018-09-18 11:51:36,452 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:51:36,636 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2018-09-18 11:51:38,939 INFO L134 CoverageAnalysis]: Checked inductivity of 5993 backedges. 1208 proven. 2 refuted. 0 times theorem prover too weak. 4783 trivial. 0 not checked. [2018-09-18 11:51:38,942 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:51:38,943 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5, 6, 5] total 24 [2018-09-18 11:51:38,943 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:51:38,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-18 11:51:38,945 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-18 11:51:38,945 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=466, Unknown=0, NotChecked=0, Total=552 [2018-09-18 11:51:38,945 INFO L87 Difference]: Start difference. First operand 24364 states and 26217 transitions. Second operand 17 states. [2018-09-18 11:51:42,046 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2018-09-18 11:51:47,042 WARN L178 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-09-18 11:51:47,308 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2018-09-18 11:51:47,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:51:47,951 INFO L93 Difference]: Finished difference Result 49151 states and 52913 transitions. [2018-09-18 11:51:47,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-09-18 11:51:47,951 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1422 [2018-09-18 11:51:47,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:51:48,009 INFO L225 Difference]: With dead ends: 49151 [2018-09-18 11:51:48,009 INFO L226 Difference]: Without dead ends: 24818 [2018-09-18 11:51:48,046 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5772 GetRequests, 5706 SyntacticMatches, 3 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1034 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=740, Invalid=3420, Unknown=0, NotChecked=0, Total=4160 [2018-09-18 11:51:48,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24818 states. [2018-09-18 11:51:48,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24818 to 24388. [2018-09-18 11:51:48,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24388 states. [2018-09-18 11:51:48,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24388 states to 24388 states and 26139 transitions. [2018-09-18 11:51:48,376 INFO L78 Accepts]: Start accepts. Automaton has 24388 states and 26139 transitions. Word has length 1422 [2018-09-18 11:51:48,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:51:48,377 INFO L480 AbstractCegarLoop]: Abstraction has 24388 states and 26139 transitions. [2018-09-18 11:51:48,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-09-18 11:51:48,377 INFO L276 IsEmpty]: Start isEmpty. Operand 24388 states and 26139 transitions. [2018-09-18 11:51:48,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1896 [2018-09-18 11:51:48,434 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:51:48,435 INFO L376 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 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, 10, 9, 8, 8, 8, 8, 8, 8, 7, 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, 5, 5, 4, 4, 2, 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 11:51:48,435 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:51:48,435 INFO L82 PathProgramCache]: Analyzing trace with hash -979324495, now seen corresponding path program 1 times [2018-09-18 11:51:48,435 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:51:48,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:48,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:48,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:48,437 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:51:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:49,550 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-09-18 11:51:51,877 INFO L134 CoverageAnalysis]: Checked inductivity of 10390 backedges. 1973 proven. 533 refuted. 0 times theorem prover too weak. 7884 trivial. 0 not checked. [2018-09-18 11:51:51,878 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:51:51,878 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 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:51:51,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:51,886 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:51:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:52,325 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:53,632 INFO L134 CoverageAnalysis]: Checked inductivity of 10390 backedges. 4406 proven. 2 refuted. 0 times theorem prover too weak. 5982 trivial. 0 not checked. [2018-09-18 11:51:53,633 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:51:55,824 INFO L134 CoverageAnalysis]: Checked inductivity of 10390 backedges. 1994 proven. 260 refuted. 0 times theorem prover too weak. 8136 trivial. 0 not checked. [2018-09-18 11:51:55,848 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:51:55,849 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 26 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 26 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:51:55,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:55,870 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:51:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:56,880 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:58,160 INFO L134 CoverageAnalysis]: Checked inductivity of 10390 backedges. 4406 proven. 2 refuted. 0 times theorem prover too weak. 5982 trivial. 0 not checked. [2018-09-18 11:51:58,160 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:52:00,073 INFO L134 CoverageAnalysis]: Checked inductivity of 10390 backedges. 1994 proven. 260 refuted. 0 times theorem prover too weak. 8136 trivial. 0 not checked. [2018-09-18 11:52:00,079 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:52:00,080 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5, 5, 5] total 12 [2018-09-18 11:52:00,080 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:52:00,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-18 11:52:00,082 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-18 11:52:00,082 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:52:00,082 INFO L87 Difference]: Start difference. First operand 24388 states and 26139 transitions. Second operand 11 states. [2018-09-18 11:52:04,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:52:04,109 INFO L93 Difference]: Finished difference Result 49079 states and 52751 transitions. [2018-09-18 11:52:04,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-09-18 11:52:04,110 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1895 [2018-09-18 11:52:04,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:52:04,118 INFO L225 Difference]: With dead ends: 49079 [2018-09-18 11:52:04,118 INFO L226 Difference]: Without dead ends: 4970 [2018-09-18 11:52:04,173 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7622 GetRequests, 7587 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=266, Invalid=726, Unknown=0, NotChecked=0, Total=992 [2018-09-18 11:52:04,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4970 states. [2018-09-18 11:52:04,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4970 to 4453. [2018-09-18 11:52:04,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4453 states. [2018-09-18 11:52:04,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4453 states to 4453 states and 4594 transitions. [2018-09-18 11:52:04,235 INFO L78 Accepts]: Start accepts. Automaton has 4453 states and 4594 transitions. Word has length 1895 [2018-09-18 11:52:04,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:52:04,236 INFO L480 AbstractCegarLoop]: Abstraction has 4453 states and 4594 transitions. [2018-09-18 11:52:04,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-18 11:52:04,236 INFO L276 IsEmpty]: Start isEmpty. Operand 4453 states and 4594 transitions. [2018-09-18 11:52:04,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1972 [2018-09-18 11:52:04,261 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:52:04,262 INFO L376 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 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, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 3, 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] [2018-09-18 11:52:04,263 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:52:04,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1907790058, now seen corresponding path program 1 times [2018-09-18 11:52:04,263 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:52:04,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:52:04,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:52:04,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:52:04,264 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:52:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:52:08,317 INFO L134 CoverageAnalysis]: Checked inductivity of 11790 backedges. 1635 proven. 1439 refuted. 0 times theorem prover too weak. 8716 trivial. 0 not checked. [2018-09-18 11:52:08,317 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:52:08,317 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 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:52:08,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:52:08,325 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:52:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:52:08,795 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:52:14,074 WARN L1001 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_9 Int)) (let ((.cse1 (div v_prenex_9 5))) (let ((.cse0 (mod .cse1 26))) (and (not (= .cse0 0)) (= 0 (mod v_prenex_9 5)) (< .cse1 0) (<= .cse0 (+ c_~a12~0 41)) (<= |c_old(~a12~0)| v_prenex_9))))) (exists ((v_prenex_12 Int)) (let ((.cse2 (mod (+ (div v_prenex_12 5) 1) 26))) (and (<= |c_old(~a12~0)| v_prenex_12) (<= .cse2 (+ c_~a12~0 15)) (= 0 .cse2) (not (= 0 (mod v_prenex_12 5))) (< v_prenex_12 0)))) (exists ((v_prenex_15 Int)) (let ((.cse3 (mod (div v_prenex_15 5) 26))) (and (<= 0 v_prenex_15) (<= .cse3 (+ c_~a12~0 15)) (= .cse3 0) (<= |c_old(~a12~0)| v_prenex_15)))) (exists ((v_prenex_11 Int)) (let ((.cse4 (div v_prenex_11 5))) (and (<= (mod .cse4 26) (+ c_~a12~0 15)) (<= 0 v_prenex_11) (<= 0 .cse4) (<= |c_old(~a12~0)| v_prenex_11)))) (exists ((v_prenex_13 Int)) (let ((.cse5 (+ (div v_prenex_13 5) 1))) (let ((.cse6 (mod .cse5 26))) (and (< .cse5 0) (<= |c_old(~a12~0)| v_prenex_13) (not (= 0 .cse6)) (<= .cse6 (+ c_~a12~0 41)) (< v_prenex_13 0) (not (= 0 (mod v_prenex_13 5))))))) (exists ((v_prenex_14 Int)) (let ((.cse7 (mod (div v_prenex_14 5) 26))) (and (= .cse7 0) (= 0 (mod v_prenex_14 5)) (<= .cse7 (+ c_~a12~0 15)) (<= |c_old(~a12~0)| v_prenex_14)))) (exists ((v_prenex_8 Int)) (let ((.cse8 (+ (div v_prenex_8 5) 1))) (and (not (= 0 (mod v_prenex_8 5))) (<= (mod .cse8 26) (+ c_~a12~0 15)) (< v_prenex_8 0) (<= |c_old(~a12~0)| v_prenex_8) (<= 0 .cse8)))) (exists ((v_prenex_10 Int)) (let ((.cse9 (div v_prenex_10 5))) (and (<= 0 .cse9) (<= |c_old(~a12~0)| v_prenex_10) (= 0 (mod v_prenex_10 5)) (<= (mod .cse9 26) (+ c_~a12~0 15))))) (exists ((v_~a12~0_1085 Int)) (let ((.cse11 (div v_~a12~0_1085 5))) (let ((.cse10 (mod .cse11 26))) (and (<= |c_old(~a12~0)| v_~a12~0_1085) (not (= .cse10 0)) (<= .cse10 (+ c_~a12~0 41)) (<= 0 v_~a12~0_1085) (< .cse11 0)))))) is different from true [2018-09-18 11:52:15,989 INFO L134 CoverageAnalysis]: Checked inductivity of 11790 backedges. 5201 proven. 142 refuted. 0 times theorem prover too weak. 6439 trivial. 8 not checked. [2018-09-18 11:52:15,989 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:52:16,479 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-18 11:52:16,727 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-18 11:52:18,317 INFO L134 CoverageAnalysis]: Checked inductivity of 11790 backedges. 522 proven. 0 refuted. 0 times theorem prover too weak. 11268 trivial. 0 not checked. [2018-09-18 11:52:18,339 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:52:18,339 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [16, 11] total 24 [2018-09-18 11:52:18,339 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:52:18,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:52:18,341 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:52:18,341 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=420, Unknown=2, NotChecked=42, Total=552 [2018-09-18 11:52:18,341 INFO L87 Difference]: Start difference. First operand 4453 states and 4594 transitions. Second operand 3 states. [2018-09-18 11:52:18,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:52:18,892 INFO L93 Difference]: Finished difference Result 8381 states and 8659 transitions. [2018-09-18 11:52:18,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:52:18,892 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1971 [2018-09-18 11:52:18,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:52:18,895 INFO L225 Difference]: With dead ends: 8381 [2018-09-18 11:52:18,895 INFO L226 Difference]: Without dead ends: 0 [2018-09-18 11:52:18,904 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3959 GetRequests, 3933 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=88, Invalid=420, Unknown=2, NotChecked=42, Total=552 [2018-09-18 11:52:18,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-18 11:52:18,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-18 11:52:18,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-18 11:52:18,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-18 11:52:18,905 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1971 [2018-09-18 11:52:18,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:52:18,906 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-18 11:52:18,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:52:18,906 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-18 11:52:18,906 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-18 11:52:18,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-18 11:52:18,998 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,010 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,321 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,324 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,329 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,379 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,389 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,393 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,462 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,474 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,474 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,477 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,500 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,559 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,601 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,680 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,700 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,701 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,769 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,778 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,793 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,801 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,802 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:19,893 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:20,108 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:20,261 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:20,275 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:20,276 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,035 WARN L178 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 689 DAG size of output: 537 [2018-09-18 11:52:21,065 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,074 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,077 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,133 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,144 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,145 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,148 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,167 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,219 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,220 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,247 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,299 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,310 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,310 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,350 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,359 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,371 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,372 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,386 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,457 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,632 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,760 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,773 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:21,774 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:52:22,418 WARN L178 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 689 DAG size of output: 537 [2018-09-18 11:52:22,647 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 32 [2018-09-18 11:52:25,083 WARN L178 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 339 DAG size of output: 93 [2018-09-18 11:52:30,221 WARN L178 SmtUtils]: Spent 5.11 s on a formula simplification. DAG size of input: 535 DAG size of output: 99 [2018-09-18 11:52:35,191 WARN L178 SmtUtils]: Spent 4.96 s on a formula simplification. DAG size of input: 535 DAG size of output: 99 [2018-09-18 11:52:35,195 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-18 11:52:35,195 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 11:52:35,195 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-18 11:52:35,196 INFO L426 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-09-18 11:52:35,196 INFO L426 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-09-18 11:52:35,196 INFO L426 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,196 INFO L426 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,196 INFO L426 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,196 INFO L426 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-09-18 11:52:35,196 INFO L426 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-09-18 11:52:35,196 INFO L426 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-09-18 11:52:35,196 INFO L426 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-09-18 11:52:35,196 INFO L426 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-09-18 11:52:35,197 INFO L426 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-09-18 11:52:35,197 INFO L426 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-09-18 11:52:35,197 INFO L426 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-09-18 11:52:35,197 INFO L426 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,197 INFO L426 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,197 INFO L426 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,197 INFO L426 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-09-18 11:52:35,197 INFO L426 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-09-18 11:52:35,197 INFO L426 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-09-18 11:52:35,197 INFO L426 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-09-18 11:52:35,198 INFO L426 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-09-18 11:52:35,198 INFO L426 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-09-18 11:52:35,198 INFO L426 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-09-18 11:52:35,198 INFO L426 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-09-18 11:52:35,198 INFO L426 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,198 INFO L426 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,198 INFO L426 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,198 INFO L426 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-09-18 11:52:35,199 INFO L426 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-09-18 11:52:35,199 INFO L426 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-09-18 11:52:35,199 INFO L426 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-09-18 11:52:35,199 INFO L426 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-09-18 11:52:35,199 INFO L426 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-09-18 11:52:35,199 INFO L426 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-09-18 11:52:35,199 INFO L426 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-09-18 11:52:35,199 INFO L426 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-09-18 11:52:35,199 INFO L426 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,199 INFO L426 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,200 INFO L426 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,200 INFO L426 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-09-18 11:52:35,200 INFO L426 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-09-18 11:52:35,200 INFO L426 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-09-18 11:52:35,200 INFO L426 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-09-18 11:52:35,200 INFO L426 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-09-18 11:52:35,200 INFO L426 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-09-18 11:52:35,200 INFO L426 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-09-18 11:52:35,200 INFO L426 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,200 INFO L426 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,201 INFO L426 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,201 INFO L426 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-09-18 11:52:35,201 INFO L426 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-09-18 11:52:35,201 INFO L426 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-09-18 11:52:35,201 INFO L426 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-09-18 11:52:35,201 INFO L426 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-09-18 11:52:35,201 INFO L426 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-09-18 11:52:35,201 INFO L426 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-09-18 11:52:35,201 INFO L426 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-09-18 11:52:35,201 INFO L426 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-09-18 11:52:35,202 INFO L426 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,202 INFO L426 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,202 INFO L426 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,202 INFO L426 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,202 INFO L426 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-09-18 11:52:35,202 INFO L426 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-09-18 11:52:35,202 INFO L426 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-09-18 11:52:35,202 INFO L426 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-09-18 11:52:35,202 INFO L426 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-09-18 11:52:35,203 INFO L426 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-09-18 11:52:35,203 INFO L426 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-09-18 11:52:35,203 INFO L426 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-09-18 11:52:35,203 INFO L426 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,203 INFO L426 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,203 INFO L426 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,203 INFO L426 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-09-18 11:52:35,203 INFO L426 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-09-18 11:52:35,203 INFO L426 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-09-18 11:52:35,203 INFO L426 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-09-18 11:52:35,204 INFO L426 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-09-18 11:52:35,204 INFO L426 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-09-18 11:52:35,204 INFO L426 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-09-18 11:52:35,204 INFO L426 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-09-18 11:52:35,204 INFO L426 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,204 INFO L426 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,204 INFO L426 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,204 INFO L426 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-09-18 11:52:35,204 INFO L426 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-09-18 11:52:35,204 INFO L426 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-09-18 11:52:35,204 INFO L426 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-09-18 11:52:35,205 INFO L426 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-09-18 11:52:35,205 INFO L426 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-09-18 11:52:35,205 INFO L422 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse22 (+ |old(~a12~0)| 43))) (let ((.cse10 (= 10 ~a21~0)) (.cse18 (= 10 |old(~a21~0)|)) (.cse24 (= 1 |old(~a24~0)|)) (.cse1 (<= .cse22 0)) (.cse2 (= 5 |old(~a15~0)|)) (.cse13 (= 7 |old(~a21~0)|)) (.cse8 (= ~a12~0 |old(~a12~0)|)) (.cse16 (= ~a21~0 |old(~a21~0)|)) (.cse17 (= |old(~a15~0)| ~a15~0)) (.cse9 (= 1 ~a24~0)) (.cse5 (= 8 |old(~a15~0)|))) (let ((.cse6 (not .cse5)) (.cse12 (< 0 (+ |old(~a12~0)| 49))) (.cse7 (< 6 |old(~a21~0)|)) (.cse20 (not (= 8 |old(~a21~0)|))) (.cse21 (= 6 |old(~a21~0)|)) (.cse0 (and .cse8 .cse16 .cse17 .cse9)) (.cse14 (and .cse24 .cse1 .cse2 .cse13)) (.cse4 (= 6 |old(~a15~0)|)) (.cse19 (< 73282 |old(~a12~0)|)) (.cse15 (< 7 |old(~a15~0)|)) (.cse11 (not .cse18)) (.cse23 (and .cse8 .cse17 .cse9 .cse10)) (.cse3 (not .cse24))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse1 .cse3 .cse6 .cse0 .cse7) (or (and .cse8 .cse9 (= 8 ~a15~0) .cse10) (or .cse11 .cse3 .cse6)) (or (or (or (or .cse12 (= 9 |old(~a15~0)|)) (not .cse13) .cse3) .cse2) .cse0) (or .cse14 .cse12 .cse4 .cse15 (and .cse8 (= ~a24~0 |old(~a24~0)|) .cse16 .cse17) (< 7 |old(~a21~0)|)) (or .cse1 (< 76 |old(~a12~0)|) .cse3 .cse18 .cse0) (or .cse0 .cse3 .cse19 .cse7 .cse15) (or .cse0 .cse3 (< 0 (+ |old(~a12~0)| 526767)) .cse5 .cse20) (or .cse21 .cse0 .cse2 .cse3 .cse15 .cse18) (or (or .cse11 .cse3 .cse4 (< 0 .cse22)) .cse23) (or .cse1 .cse3 .cse19 .cse0 .cse20) (or (not .cse21) .cse3 (not .cse2) .cse0) (or .cse0 .cse14 .cse3 .cse4 .cse19 .cse15) (or .cse11 .cse1 .cse23 .cse3 (< 11 |old(~a12~0)|)))))) [2018-09-18 11:52:35,205 INFO L426 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-09-18 11:52:35,205 INFO L426 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-09-18 11:52:35,205 INFO L426 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,206 INFO L426 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,206 INFO L426 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,206 INFO L426 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2018-09-18 11:52:35,206 INFO L426 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-09-18 11:52:35,206 INFO L426 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-09-18 11:52:35,206 INFO L426 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-09-18 11:52:35,206 INFO L426 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-09-18 11:52:35,206 INFO L426 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-09-18 11:52:35,206 INFO L426 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-09-18 11:52:35,207 INFO L426 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-09-18 11:52:35,207 INFO L426 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-09-18 11:52:35,207 INFO L426 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,207 INFO L426 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,207 INFO L426 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,207 INFO L426 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-09-18 11:52:35,207 INFO L426 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-09-18 11:52:35,207 INFO L426 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-09-18 11:52:35,207 INFO L426 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-09-18 11:52:35,207 INFO L426 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-09-18 11:52:35,208 INFO L426 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-09-18 11:52:35,208 INFO L426 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-09-18 11:52:35,208 INFO L426 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-09-18 11:52:35,208 INFO L426 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,208 INFO L426 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,208 INFO L426 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,208 INFO L426 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-09-18 11:52:35,208 INFO L426 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-09-18 11:52:35,208 INFO L426 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-09-18 11:52:35,208 INFO L426 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-09-18 11:52:35,209 INFO L426 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-09-18 11:52:35,209 INFO L426 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-09-18 11:52:35,209 INFO L426 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-09-18 11:52:35,209 INFO L426 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-09-18 11:52:35,209 INFO L426 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,209 INFO L426 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,209 INFO L426 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,209 INFO L426 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-09-18 11:52:35,209 INFO L426 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-09-18 11:52:35,209 INFO L426 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-09-18 11:52:35,209 INFO L426 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-09-18 11:52:35,210 INFO L426 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-09-18 11:52:35,210 INFO L426 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-09-18 11:52:35,210 INFO L426 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-09-18 11:52:35,210 INFO L426 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-09-18 11:52:35,210 INFO L426 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,210 INFO L426 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,210 INFO L426 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-09-18 11:52:35,210 INFO L426 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-09-18 11:52:35,210 INFO L426 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-09-18 11:52:35,210 INFO L426 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-09-18 11:52:35,210 INFO L426 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-09-18 11:52:35,211 INFO L426 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-09-18 11:52:35,211 INFO L426 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-09-18 11:52:35,211 INFO L426 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-09-18 11:52:35,211 INFO L426 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,211 INFO L426 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,211 INFO L426 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-09-18 11:52:35,211 INFO L426 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-09-18 11:52:35,211 INFO L426 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-09-18 11:52:35,211 INFO L426 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-09-18 11:52:35,211 INFO L426 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-09-18 11:52:35,211 INFO L426 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-09-18 11:52:35,212 INFO L426 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,212 INFO L426 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,212 INFO L426 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-09-18 11:52:35,212 INFO L426 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-09-18 11:52:35,212 INFO L426 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-09-18 11:52:35,212 INFO L426 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-09-18 11:52:35,212 INFO L426 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-09-18 11:52:35,212 INFO L426 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-09-18 11:52:35,212 INFO L426 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-09-18 11:52:35,212 INFO L426 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-09-18 11:52:35,212 INFO L426 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,213 INFO L426 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,213 INFO L426 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-09-18 11:52:35,213 INFO L426 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-09-18 11:52:35,213 INFO L426 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-09-18 11:52:35,213 INFO L426 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-09-18 11:52:35,213 INFO L426 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-09-18 11:52:35,213 INFO L426 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-09-18 11:52:35,213 INFO L426 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-09-18 11:52:35,213 INFO L426 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,214 INFO L426 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,214 INFO L426 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,214 INFO L426 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-09-18 11:52:35,214 INFO L426 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-09-18 11:52:35,214 INFO L426 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-09-18 11:52:35,214 INFO L426 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-09-18 11:52:35,214 INFO L426 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-09-18 11:52:35,214 INFO L426 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-09-18 11:52:35,214 INFO L426 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,214 INFO L426 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,215 INFO L426 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-09-18 11:52:35,215 INFO L426 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,215 INFO L426 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-09-18 11:52:35,215 INFO L426 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-09-18 11:52:35,215 INFO L426 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-09-18 11:52:35,215 INFO L426 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-09-18 11:52:35,215 INFO L426 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-09-18 11:52:35,215 INFO L426 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-09-18 11:52:35,215 INFO L426 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-09-18 11:52:35,215 INFO L426 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-09-18 11:52:35,216 INFO L426 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-09-18 11:52:35,216 INFO L426 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-09-18 11:52:35,216 INFO L426 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,216 INFO L426 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,216 INFO L426 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,216 INFO L426 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-09-18 11:52:35,216 INFO L426 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-09-18 11:52:35,216 INFO L426 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-09-18 11:52:35,216 INFO L426 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-09-18 11:52:35,216 INFO L426 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-09-18 11:52:35,217 INFO L426 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-09-18 11:52:35,217 INFO L426 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-09-18 11:52:35,217 INFO L426 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-09-18 11:52:35,217 INFO L426 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,217 INFO L426 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,217 INFO L426 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,217 INFO L426 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-09-18 11:52:35,217 INFO L426 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-09-18 11:52:35,217 INFO L426 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-09-18 11:52:35,217 INFO L426 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-09-18 11:52:35,217 INFO L426 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-09-18 11:52:35,218 INFO L426 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-09-18 11:52:35,218 INFO L426 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-09-18 11:52:35,218 INFO L426 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-09-18 11:52:35,218 INFO L426 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,218 INFO L426 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,218 INFO L426 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,218 INFO L426 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-09-18 11:52:35,218 INFO L426 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-09-18 11:52:35,218 INFO L426 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-09-18 11:52:35,218 INFO L426 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-09-18 11:52:35,218 INFO L426 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-09-18 11:52:35,219 INFO L426 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-09-18 11:52:35,219 INFO L426 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-09-18 11:52:35,219 INFO L426 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-09-18 11:52:35,219 INFO L426 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-09-18 11:52:35,219 INFO L426 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,219 INFO L426 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,219 INFO L426 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:35,219 INFO L426 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-09-18 11:52:35,219 INFO L426 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-09-18 11:52:35,219 INFO L426 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-09-18 11:52:35,219 INFO L426 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-09-18 11:52:35,220 INFO L426 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-09-18 11:52:35,220 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-18 11:52:35,220 INFO L422 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (not (= ~a15~0 9)) (= 7 ~a21~0) (= 1 ~a24~0) (not (= 7 ~a15~0)) (<= (+ ~a12~0 49) 0) (not (= 5 ~a15~0)) (not (= ~a15~0 6))) [2018-09-18 11:52:35,220 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-18 11:52:35,220 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-18 11:52:35,220 INFO L422 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (= 5 |old(~a15~0)|) (< 0 (+ |old(~a12~0)| 49)) (= 6 |old(~a15~0)|) (= 9 |old(~a15~0)|) (not (= 7 |old(~a21~0)|)) (= 7 |old(~a15~0)|) (not (= 1 |old(~a24~0)|)) (and (= ~a12~0 |old(~a12~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0) (= 1 ~a24~0))) [2018-09-18 11:52:35,220 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-09-18 11:52:35,221 INFO L422 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse16 (= 5 ~a15~0)) (.cse15 (= 6 ~a21~0)) (.cse1 (not (= ~a15~0 6)))) (let ((.cse9 (and (not (= ~a15~0 9)) .cse1)) (.cse4 (= 10 ~a21~0)) (.cse14 (not .cse15)) (.cse21 (= 7 ~a21~0)) (.cse8 (< 0 (+ ~a12~0 43))) (.cse6 (not .cse16)) (.cse5 (= 1 ~a24~0))) (let ((.cse12 (= ~a21~0 10)) (.cse10 (or (not .cse21) .cse8 .cse6 (not .cse5))) (.cse11 (<= ~a15~0 7)) (.cse18 (and .cse5 (<= ~a21~0 6))) (.cse13 (= ~a15~0 |old(~a15~0)|)) (.cse7 (not (= ~a15~0 8))) (.cse0 (= ~a24~0 |old(~a24~0)|)) (.cse3 (<= ~a12~0 11)) (.cse17 (<= ~a12~0 73282)) (.cse19 (= ~a21~0 8)) (.cse20 (and .cse6 (and (and .cse9 (not .cse4) .cse5) .cse14))) (.cse2 (= 8 |old(~a15~0)|))) (or (and (and .cse0 .cse1) .cse2 .cse3 .cse4) (and (and .cse5 .cse6 .cse1) .cse7 .cse2 .cse8) (and (and .cse9 (<= ~a21~0 7) .cse10 (<= (+ ~a12~0 49) 0)) .cse11 .cse2) (not (= 7 |old(~a21~0)|)) (< 0 (+ |old(~a12~0)| 49)) (and (and .cse5 .cse12) .cse2 .cse13) (and .cse11 (and .cse5 .cse6 (not .cse12) .cse14) .cse2) (and .cse15 .cse0 .cse16) (= 9 |old(~a15~0)|) (not (= 1 |old(~a24~0)|)) (= 5 |old(~a15~0)|) (= 7 |old(~a15~0)|) (and .cse17 (and .cse9 .cse5 .cse10) .cse11 .cse2) (and .cse17 .cse18 .cse11 .cse2) (and .cse18 .cse2 .cse8 .cse13) (and .cse5 .cse19 (<= (+ ~a12~0 526767) 0) .cse7 .cse2) (and (and .cse0 .cse3) .cse2 .cse8) (and .cse17 .cse20 .cse19 .cse2 .cse8) (and (and (<= ~a12~0 76) .cse20) .cse2 .cse8) (= 6 |old(~a15~0)|) (and (= |old(~a15~0)| ~a15~0) (and (= ~a12~0 |old(~a12~0)|) .cse5 .cse21)))))) [2018-09-18 11:52:35,221 INFO L426 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-09-18 11:52:35,221 INFO L426 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-09-18 11:52:35,221 INFO L426 ceAbstractionStarter]: For program point L880-1(lines 880 889) no Hoare annotation was computed. [2018-09-18 11:52:35,221 INFO L422 ceAbstractionStarter]: At program point L880-3(lines 880 889) the Hoare annotation is: (let ((.cse16 (= 5 ~a15~0)) (.cse15 (= 6 ~a21~0)) (.cse1 (not (= ~a15~0 6)))) (let ((.cse9 (and (not (= ~a15~0 9)) .cse1)) (.cse4 (= 10 ~a21~0)) (.cse14 (not .cse15)) (.cse21 (= 7 ~a21~0)) (.cse8 (< 0 (+ ~a12~0 43))) (.cse6 (not .cse16)) (.cse5 (= 1 ~a24~0))) (let ((.cse12 (= ~a21~0 10)) (.cse10 (or (not .cse21) .cse8 .cse6 (not .cse5))) (.cse11 (<= ~a15~0 7)) (.cse18 (and .cse5 (<= ~a21~0 6))) (.cse13 (= ~a15~0 |old(~a15~0)|)) (.cse7 (not (= ~a15~0 8))) (.cse0 (= ~a24~0 |old(~a24~0)|)) (.cse3 (<= ~a12~0 11)) (.cse17 (<= ~a12~0 73282)) (.cse19 (= ~a21~0 8)) (.cse20 (and .cse6 (and (and .cse9 (not .cse4) .cse5) .cse14))) (.cse2 (= 8 |old(~a15~0)|))) (or (and (and .cse0 .cse1) .cse2 .cse3 .cse4) (and (and .cse5 .cse6 .cse1) .cse7 .cse2 .cse8) (and (and .cse9 (<= ~a21~0 7) .cse10 (<= (+ ~a12~0 49) 0)) .cse11 .cse2) (not (= 7 |old(~a21~0)|)) (< 0 (+ |old(~a12~0)| 49)) (and (and .cse5 .cse12) .cse2 .cse13) (and .cse11 (and .cse5 .cse6 (not .cse12) .cse14) .cse2) (and .cse15 .cse0 .cse16) (= 9 |old(~a15~0)|) (not (= 1 |old(~a24~0)|)) (= 5 |old(~a15~0)|) (= 7 |old(~a15~0)|) (and .cse17 (and .cse9 .cse5 .cse10) .cse11 .cse2) (and .cse17 .cse18 .cse11 .cse2) (and .cse18 .cse2 .cse8 .cse13) (and .cse5 .cse19 (<= (+ ~a12~0 526767) 0) .cse7 .cse2) (and (and .cse0 .cse3) .cse2 .cse8) (and .cse17 .cse20 .cse19 .cse2 .cse8) (and (and (<= ~a12~0 76) .cse20) .cse2 .cse8) (= 6 |old(~a15~0)|) (and (= |old(~a15~0)| ~a15~0) (and (= ~a12~0 |old(~a12~0)|) .cse5 .cse21)))))) [2018-09-18 11:52:35,222 INFO L426 ceAbstractionStarter]: For program point L880-4(lines 874 890) no Hoare annotation was computed. [2018-09-18 11:52:35,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 11:52:35 BoogieIcfgContainer [2018-09-18 11:52:35,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 11:52:35,247 INFO L168 Benchmark]: Toolchain (without parser) took 199301.81 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -260.6 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-09-18 11:52:35,248 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 11:52:35,249 INFO L168 Benchmark]: CACSL2BoogieTranslator took 797.50 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-09-18 11:52:35,249 INFO L168 Benchmark]: Boogie Procedure Inliner took 127.10 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 11:52:35,250 INFO L168 Benchmark]: Boogie Preprocessor took 283.51 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 782.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -887.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2018-09-18 11:52:35,251 INFO L168 Benchmark]: RCFGBuilder took 3869.85 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: 122.7 MB). Peak memory consumption was 122.7 MB. Max. memory is 7.1 GB. [2018-09-18 11:52:35,251 INFO L168 Benchmark]: TraceAbstraction took 194213.53 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 440.3 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-09-18 11:52:35,255 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 797.50 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 127.10 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 283.51 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 782.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -887.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3869.85 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: 122.7 MB). Peak memory consumption was 122.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 194213.53 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 440.3 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 100]: 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: (((((((((((((((((((((((a24 == \old(a24) && !(a15 == 6)) && 8 == \old(a15)) && a12 <= 11) && 10 == a21) || (((((1 == a24 && !(5 == a15)) && !(a15 == 6)) && !(a15 == 8)) && 8 == \old(a15)) && 0 < a12 + 43)) || ((((((!(a15 == 9) && !(a15 == 6)) && a21 <= 7) && (((!(7 == a21) || 0 < a12 + 43) || !(5 == a15)) || !(1 == a24))) && a12 + 49 <= 0) && a15 <= 7) && 8 == \old(a15))) || !(7 == \old(a21))) || 0 < \old(a12) + 49) || (((1 == a24 && a21 == 10) && 8 == \old(a15)) && a15 == \old(a15))) || ((a15 <= 7 && ((1 == a24 && !(5 == a15)) && !(a21 == 10)) && !(6 == a21)) && 8 == \old(a15))) || ((6 == a21 && a24 == \old(a24)) && 5 == a15)) || 9 == \old(a15)) || !(1 == \old(a24))) || 5 == \old(a15)) || 7 == \old(a15)) || (((a12 <= 73282 && ((!(a15 == 9) && !(a15 == 6)) && 1 == a24) && (((!(7 == a21) || 0 < a12 + 43) || !(5 == a15)) || !(1 == a24))) && a15 <= 7) && 8 == \old(a15))) || (((a12 <= 73282 && 1 == a24 && a21 <= 6) && a15 <= 7) && 8 == \old(a15))) || ((((1 == a24 && a21 <= 6) && 8 == \old(a15)) && 0 < a12 + 43) && a15 == \old(a15))) || ((((1 == a24 && a21 == 8) && a12 + 526767 <= 0) && !(a15 == 8)) && 8 == \old(a15))) || (((a24 == \old(a24) && a12 <= 11) && 8 == \old(a15)) && 0 < a12 + 43)) || ((((a12 <= 73282 && !(5 == a15) && (((!(a15 == 9) && !(a15 == 6)) && !(10 == a21)) && 1 == a24) && !(6 == a21)) && a21 == 8) && 8 == \old(a15)) && 0 < a12 + 43)) || (((a12 <= 76 && !(5 == a15) && (((!(a15 == 9) && !(a15 == 6)) && !(10 == a21)) && 1 == a24) && !(6 == a21)) && 8 == \old(a15)) && 0 < a12 + 43)) || 6 == \old(a15)) || (\old(a15) == a15 && (a12 == \old(a12) && 1 == a24) && 7 == a21) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. SAFE Result, 194.1s OverallTime, 17 OverallIterations, 16 TraceHistogramMax, 89.2s AutomataDifference, 0.0s DeadEndRemovalTime, 16.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 1775 SDtfs, 39761 SDslu, 4259 SDs, 0 SdLazy, 52253 SolverSat, 7417 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 60.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43712 GetRequests, 43127 SyntacticMatches, 74 SemanticMatches, 511 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7392 ImplicationChecksByTransitivity, 34.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24388occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.5s AutomataMinimizationTime, 17 MinimizatonAttempts, 6727 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 631 PreInvPairs, 817 NumberOfFragments, 1285 HoareAnnotationTreeSize, 631 FomulaSimplifications, 1513603 FormulaSimplificationTreeSizeReduction, 3.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 495051 FormulaSimplificationTreeSizeReductionInter, 12.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.9s SsaConstructionTime, 8.2s SatisfiabilityAnalysisTime, 63.5s InterpolantComputationTime, 33691 NumberOfCodeBlocks, 33691 NumberOfCodeBlocksAsserted, 45 NumberOfCheckSat, 55164 ConstructedInterpolants, 14 QuantifiedInterpolants, 150319642 SizeOfPredicates, 69 NumberOfNonLiveVariables, 30731 ConjunctsInSsa, 368 ConjunctsInUnsatCore, 69 InterpolantComputations, 5 PerfectInterpolantSequences, 182799/191938 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_label23_true-unreach-call_false-termination.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_11-52-35-273.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label23_true-unreach-call_false-termination.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_11-52-35-273.csv Received shutdown request...