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_label42_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:50:03,151 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:50:03,153 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:50:03,172 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:50:03,172 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:50:03,173 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:50:03,175 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:50:03,176 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:50:03,178 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:50:03,179 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:50:03,180 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:50:03,180 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:50:03,181 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:50:03,182 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:50:03,183 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:50:03,184 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:50:03,185 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:50:03,186 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:50:03,188 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:50:03,190 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:50:03,191 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:50:03,192 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:50:03,197 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 11:50:03,197 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 11:50:03,197 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 11:50:03,199 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 11:50:03,200 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 11:50:03,202 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 11:50:03,203 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 11:50:03,207 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 11:50:03,207 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 11:50:03,208 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 11:50:03,208 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 11:50:03,208 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 11:50:03,211 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 11:50:03,213 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 11:50:03,213 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 11:50:03,230 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:50:03,230 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:50:03,231 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:50:03,231 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:50:03,231 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:50:03,231 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:50:03,232 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:50:03,232 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:50:03,232 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:50:03,232 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:50:03,232 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:50:03,233 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:50:03,233 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:50:03,233 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:50:03,234 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:50:03,234 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:50:03,234 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:50:03,234 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:50:03,234 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:50:03,235 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:50:03,235 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:50:03,235 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:50:03,235 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:50:03,235 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:50:03,236 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:50:03,236 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:50:03,236 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:50:03,236 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:50:03,236 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:50:03,237 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:50:03,237 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:50:03,237 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:50:03,237 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:50:03,237 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:50:03,295 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:50:03,310 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:50:03,316 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:50:03,318 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:50:03,318 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:50:03,319 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label42_true-unreach-call_false-termination.c [2018-09-18 11:50:03,688 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85adb17c0/6e6622b919ac4455a95865d4c705c378/FLAG054a32761 [2018-09-18 11:50:03,970 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:50:03,971 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label42_true-unreach-call_false-termination.c [2018-09-18 11:50:03,994 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85adb17c0/6e6622b919ac4455a95865d4c705c378/FLAG054a32761 [2018-09-18 11:50:04,017 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85adb17c0/6e6622b919ac4455a95865d4c705c378 [2018-09-18 11:50:04,030 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:50:04,037 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:50:04,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:50:04,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:50:04,046 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:50:04,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:50:04" (1/1) ... [2018-09-18 11:50:04,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76a7336e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:50:04, skipping insertion in model container [2018-09-18 11:50:04,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:50:04" (1/1) ... [2018-09-18 11:50:04,063 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:50:04,589 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:50:04,608 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:50:04,712 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:50:04,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:50:04 WrapperNode [2018-09-18 11:50:04,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:50:04,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:50:04,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:50:04,763 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:50:04,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:50:04" (1/1) ... [2018-09-18 11:50:04,801 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:50:04" (1/1) ... [2018-09-18 11:50:04,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:50:04,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:50:04,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:50:04,888 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:50:05,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:50:04" (1/1) ... [2018-09-18 11:50:05,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:50:04" (1/1) ... [2018-09-18 11:50:05,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:50:04" (1/1) ... [2018-09-18 11:50:05,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:50:04" (1/1) ... [2018-09-18 11:50:05,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:50:04" (1/1) ... [2018-09-18 11:50:05,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:50:04" (1/1) ... [2018-09-18 11:50:05,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:50:04" (1/1) ... [2018-09-18 11:50:05,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:50:05,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:50:05,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:50:05,165 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:50:05,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:50:04" (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 11:50:05,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:50:05,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:50:05,242 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:50:05,242 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:50:05,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:50:05,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:50:05,242 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:50:05,243 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:50:09,202 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:50:09,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:50:09 BoogieIcfgContainer [2018-09-18 11:50:09,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:50:09,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:50:09,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:50:09,207 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:50:09,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:50:04" (1/3) ... [2018-09-18 11:50:09,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ba8a48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:50:09, skipping insertion in model container [2018-09-18 11:50:09,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:50:04" (2/3) ... [2018-09-18 11:50:09,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ba8a48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:50:09, skipping insertion in model container [2018-09-18 11:50:09,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:50:09" (3/3) ... [2018-09-18 11:50:09,211 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label42_true-unreach-call_false-termination.c [2018-09-18 11:50:09,222 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:50:09,237 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:50:09,292 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:50:09,293 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:50:09,293 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:50:09,294 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:50:09,294 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:50:09,294 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:50:09,294 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:50:09,294 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:50:09,295 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:50:09,328 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-09-18 11:50:09,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-09-18 11:50:09,338 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:50:09,339 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:50:09,340 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:50:09,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1589650361, now seen corresponding path program 1 times [2018-09-18 11:50:09,348 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:50:09,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:09,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:09,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:09,400 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:50:09,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:09,753 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:50:09,865 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 11:50:09,868 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:50:09,868 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 11:50:09,868 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:50:09,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:50:09,892 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:50:09,893 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:50:09,896 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-09-18 11:50:11,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:50:11,757 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-09-18 11:50:11,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:50:11,762 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2018-09-18 11:50:11,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:50:11,781 INFO L225 Difference]: With dead ends: 691 [2018-09-18 11:50:11,782 INFO L226 Difference]: Without dead ends: 434 [2018-09-18 11:50:11,790 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 11:50:11,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-09-18 11:50:11,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-09-18 11:50:11,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-09-18 11:50:11,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 765 transitions. [2018-09-18 11:50:11,877 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 765 transitions. Word has length 49 [2018-09-18 11:50:11,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:50:11,878 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 765 transitions. [2018-09-18 11:50:11,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:50:11,878 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 765 transitions. [2018-09-18 11:50:11,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-09-18 11:50:11,887 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:50:11,887 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:50:11,888 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:50:11,888 INFO L82 PathProgramCache]: Analyzing trace with hash 192752175, now seen corresponding path program 1 times [2018-09-18 11:50:11,888 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:50:11,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:11,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:11,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:11,890 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:50:11,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:12,189 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:50:12,190 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:50:12,190 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:50:12,190 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:50:12,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:50:12,193 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:50:12,193 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:50:12,194 INFO L87 Difference]: Start difference. First operand 434 states and 765 transitions. Second operand 6 states. [2018-09-18 11:50:14,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:50:14,218 INFO L93 Difference]: Finished difference Result 1062 states and 1897 transitions. [2018-09-18 11:50:14,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:50:14,219 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2018-09-18 11:50:14,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:50:14,227 INFO L225 Difference]: With dead ends: 1062 [2018-09-18 11:50:14,227 INFO L226 Difference]: Without dead ends: 634 [2018-09-18 11:50:14,230 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:50:14,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2018-09-18 11:50:14,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 625. [2018-09-18 11:50:14,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2018-09-18 11:50:14,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 1019 transitions. [2018-09-18 11:50:14,279 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 1019 transitions. Word has length 136 [2018-09-18 11:50:14,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:50:14,280 INFO L480 AbstractCegarLoop]: Abstraction has 625 states and 1019 transitions. [2018-09-18 11:50:14,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:50:14,281 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 1019 transitions. [2018-09-18 11:50:14,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-09-18 11:50:14,285 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:50:14,286 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:50:14,286 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:50:14,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1678139032, now seen corresponding path program 1 times [2018-09-18 11:50:14,292 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:50:14,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:14,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:14,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:14,295 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:50:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:14,510 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:50:14,511 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:50:14,511 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:50:14,511 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:50:14,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:50:14,512 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:50:14,513 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:50:14,513 INFO L87 Difference]: Start difference. First operand 625 states and 1019 transitions. Second operand 4 states. [2018-09-18 11:50:18,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:50:18,621 INFO L93 Difference]: Finished difference Result 2352 states and 4016 transitions. [2018-09-18 11:50:18,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:50:18,625 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 145 [2018-09-18 11:50:18,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:50:18,645 INFO L225 Difference]: With dead ends: 2352 [2018-09-18 11:50:18,645 INFO L226 Difference]: Without dead ends: 1733 [2018-09-18 11:50:18,651 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:50:18,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1733 states. [2018-09-18 11:50:18,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1733 to 1733. [2018-09-18 11:50:18,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1733 states. [2018-09-18 11:50:18,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 2647 transitions. [2018-09-18 11:50:18,731 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 2647 transitions. Word has length 145 [2018-09-18 11:50:18,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:50:18,734 INFO L480 AbstractCegarLoop]: Abstraction has 1733 states and 2647 transitions. [2018-09-18 11:50:18,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:50:18,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 2647 transitions. [2018-09-18 11:50:18,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2018-09-18 11:50:18,749 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:50:18,749 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:50:18,750 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:50:18,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1304221998, now seen corresponding path program 1 times [2018-09-18 11:50:18,750 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:50:18,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:18,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:18,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:18,752 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:50:18,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:19,270 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 84 proven. 107 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:50:19,270 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:19,271 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 11:50:19,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:19,288 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:19,423 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:20,006 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2018-09-18 11:50:20,006 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:20,304 WARN L178 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-18 11:50:20,468 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2018-09-18 11:50:21,202 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 84 proven. 107 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:50:21,225 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:50:21,225 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 5] total 12 [2018-09-18 11:50:21,225 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:50:21,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:50:21,226 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:50:21,227 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:50:21,227 INFO L87 Difference]: Start difference. First operand 1733 states and 2647 transitions. Second operand 5 states. [2018-09-18 11:50:25,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:50:25,275 INFO L93 Difference]: Finished difference Result 4895 states and 7479 transitions. [2018-09-18 11:50:25,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:50:25,284 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 274 [2018-09-18 11:50:25,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:50:25,304 INFO L225 Difference]: With dead ends: 4895 [2018-09-18 11:50:25,305 INFO L226 Difference]: Without dead ends: 3168 [2018-09-18 11:50:25,316 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 559 GetRequests, 543 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2018-09-18 11:50:25,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3168 states. [2018-09-18 11:50:25,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3168 to 3119. [2018-09-18 11:50:25,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3119 states. [2018-09-18 11:50:25,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 4564 transitions. [2018-09-18 11:50:25,412 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 4564 transitions. Word has length 274 [2018-09-18 11:50:25,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:50:25,412 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 4564 transitions. [2018-09-18 11:50:25,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:50:25,413 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 4564 transitions. [2018-09-18 11:50:25,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2018-09-18 11:50:25,428 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:50:25,428 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 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 11:50:25,428 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:50:25,429 INFO L82 PathProgramCache]: Analyzing trace with hash -111433536, now seen corresponding path program 1 times [2018-09-18 11:50:25,429 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:50:25,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:25,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:25,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:25,430 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:50:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:25,950 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-18 11:50:26,634 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 214 proven. 189 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:50:26,634 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:26,634 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:50:26,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:26,642 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:26,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:26,746 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:27,206 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 312 proven. 53 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2018-09-18 11:50:27,207 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:27,788 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 136 proven. 267 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:50:27,810 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:27,810 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:50:27,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:27,827 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:28,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:28,046 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:28,702 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 312 proven. 53 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2018-09-18 11:50:28,703 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:29,576 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 136 proven. 267 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:50:29,578 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:50:29,578 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8, 8, 8] total 26 [2018-09-18 11:50:29,578 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:50:29,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-18 11:50:29,580 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-18 11:50:29,581 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2018-09-18 11:50:29,581 INFO L87 Difference]: Start difference. First operand 3119 states and 4564 transitions. Second operand 15 states. [2018-09-18 11:50:35,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:50:35,338 INFO L93 Difference]: Finished difference Result 7588 states and 11031 transitions. [2018-09-18 11:50:35,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-18 11:50:35,338 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 359 [2018-09-18 11:50:35,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:50:35,361 INFO L225 Difference]: With dead ends: 7588 [2018-09-18 11:50:35,361 INFO L226 Difference]: Without dead ends: 4274 [2018-09-18 11:50:35,380 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1479 GetRequests, 1435 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=415, Invalid=1307, Unknown=0, NotChecked=0, Total=1722 [2018-09-18 11:50:35,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4274 states. [2018-09-18 11:50:35,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4274 to 3856. [2018-09-18 11:50:35,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3856 states. [2018-09-18 11:50:35,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3856 states to 3856 states and 5033 transitions. [2018-09-18 11:50:35,480 INFO L78 Accepts]: Start accepts. Automaton has 3856 states and 5033 transitions. Word has length 359 [2018-09-18 11:50:35,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:50:35,480 INFO L480 AbstractCegarLoop]: Abstraction has 3856 states and 5033 transitions. [2018-09-18 11:50:35,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-18 11:50:35,480 INFO L276 IsEmpty]: Start isEmpty. Operand 3856 states and 5033 transitions. [2018-09-18 11:50:35,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2018-09-18 11:50:35,498 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:50:35,499 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:50:35,499 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:50:35,499 INFO L82 PathProgramCache]: Analyzing trace with hash 883316679, now seen corresponding path program 1 times [2018-09-18 11:50:35,499 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:50:35,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:35,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:35,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:35,501 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:50:35,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:36,408 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 261 proven. 197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:50:36,409 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:36,409 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 11:50:36,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:36,419 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:36,524 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:36,659 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2018-09-18 11:50:36,659 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:36,975 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 126 proven. 210 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2018-09-18 11:50:36,996 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:50:36,996 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [12, 5] total 16 [2018-09-18 11:50:36,996 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:50:36,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:50:36,997 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:50:36,997 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2018-09-18 11:50:36,998 INFO L87 Difference]: Start difference. First operand 3856 states and 5033 transitions. Second operand 5 states. [2018-09-18 11:50:39,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:50:39,260 INFO L93 Difference]: Finished difference Result 10932 states and 14499 transitions. [2018-09-18 11:50:39,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:50:39,263 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 384 [2018-09-18 11:50:39,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:50:39,300 INFO L225 Difference]: With dead ends: 10932 [2018-09-18 11:50:39,301 INFO L226 Difference]: Without dead ends: 7082 [2018-09-18 11:50:39,328 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 786 GetRequests, 766 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2018-09-18 11:50:39,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7082 states. [2018-09-18 11:50:39,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7082 to 6416. [2018-09-18 11:50:39,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6416 states. [2018-09-18 11:50:39,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6416 states to 6416 states and 8244 transitions. [2018-09-18 11:50:39,487 INFO L78 Accepts]: Start accepts. Automaton has 6416 states and 8244 transitions. Word has length 384 [2018-09-18 11:50:39,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:50:39,488 INFO L480 AbstractCegarLoop]: Abstraction has 6416 states and 8244 transitions. [2018-09-18 11:50:39,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:50:39,488 INFO L276 IsEmpty]: Start isEmpty. Operand 6416 states and 8244 transitions. [2018-09-18 11:50:39,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2018-09-18 11:50:39,523 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:50:39,524 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:50:39,524 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:50:39,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1255475487, now seen corresponding path program 1 times [2018-09-18 11:50:39,525 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:50:39,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:39,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:39,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:39,526 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:50:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:40,489 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-18 11:50:41,010 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 400 proven. 111 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2018-09-18 11:50:41,010 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:41,010 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:50:41,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:41,022 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:41,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:41,158 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:41,289 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 680 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2018-09-18 11:50:41,289 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:41,521 WARN L178 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-18 11:50:41,921 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 400 proven. 111 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2018-09-18 11:50:41,943 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:41,943 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:50:41,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:41,960 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:42,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:42,236 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:42,673 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 676 proven. 6 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2018-09-18 11:50:42,673 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:42,977 WARN L178 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-18 11:50:43,224 WARN L178 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-18 11:50:43,494 WARN L178 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 32 [2018-09-18 11:50:43,843 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 400 proven. 111 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2018-09-18 11:50:43,846 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:50:43,846 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5, 5, 5] total 8 [2018-09-18 11:50:43,846 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:50:43,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-18 11:50:43,847 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-18 11:50:43,848 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:50:43,848 INFO L87 Difference]: Start difference. First operand 6416 states and 8244 transitions. Second operand 7 states. [2018-09-18 11:50:46,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:50:46,458 INFO L93 Difference]: Finished difference Result 14395 states and 18836 transitions. [2018-09-18 11:50:46,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-18 11:50:46,458 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 495 [2018-09-18 11:50:46,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:50:46,494 INFO L225 Difference]: With dead ends: 14395 [2018-09-18 11:50:46,494 INFO L226 Difference]: Without dead ends: 7985 [2018-09-18 11:50:46,525 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1999 GetRequests, 1977 SyntacticMatches, 11 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2018-09-18 11:50:46,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7985 states. [2018-09-18 11:50:46,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7985 to 7716. [2018-09-18 11:50:46,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7716 states. [2018-09-18 11:50:46,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7716 states to 7716 states and 9416 transitions. [2018-09-18 11:50:46,685 INFO L78 Accepts]: Start accepts. Automaton has 7716 states and 9416 transitions. Word has length 495 [2018-09-18 11:50:46,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:50:46,686 INFO L480 AbstractCegarLoop]: Abstraction has 7716 states and 9416 transitions. [2018-09-18 11:50:46,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-18 11:50:46,686 INFO L276 IsEmpty]: Start isEmpty. Operand 7716 states and 9416 transitions. [2018-09-18 11:50:46,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2018-09-18 11:50:46,714 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:50:46,715 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:50:46,715 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:50:46,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1869135889, now seen corresponding path program 1 times [2018-09-18 11:50:46,716 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:50:46,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:46,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:46,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:46,718 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:50:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:47,381 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-18 11:50:48,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 541 proven. 481 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2018-09-18 11:50:48,407 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:48,407 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:50:48,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:48,415 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:48,564 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:49,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 895 proven. 2 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2018-09-18 11:50:49,078 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:49,207 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-18 11:50:49,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 535 proven. 111 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2018-09-18 11:50:49,893 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:49,893 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:50:49,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:49,910 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:50,240 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:50,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 687 proven. 210 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2018-09-18 11:50:50,666 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:51,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 246 proven. 689 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2018-09-18 11:50:51,652 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:50:51,652 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5, 8, 8] total 16 [2018-09-18 11:50:51,652 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:50:51,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-18 11:50:51,653 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-18 11:50:51,654 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2018-09-18 11:50:51,654 INFO L87 Difference]: Start difference. First operand 7716 states and 9416 transitions. Second operand 13 states. [2018-09-18 11:50:55,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:50:55,251 INFO L93 Difference]: Finished difference Result 15999 states and 20022 transitions. [2018-09-18 11:50:55,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-18 11:50:55,255 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 580 [2018-09-18 11:50:55,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:50:55,290 INFO L225 Difference]: With dead ends: 15999 [2018-09-18 11:50:55,290 INFO L226 Difference]: Without dead ends: 8088 [2018-09-18 11:50:55,318 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2348 GetRequests, 2310 SyntacticMatches, 15 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=171, Invalid=429, Unknown=0, NotChecked=0, Total=600 [2018-09-18 11:50:55,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8088 states. [2018-09-18 11:50:55,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8088 to 7881. [2018-09-18 11:50:55,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7881 states. [2018-09-18 11:50:55,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7881 states to 7881 states and 9307 transitions. [2018-09-18 11:50:55,518 INFO L78 Accepts]: Start accepts. Automaton has 7881 states and 9307 transitions. Word has length 580 [2018-09-18 11:50:55,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:50:55,519 INFO L480 AbstractCegarLoop]: Abstraction has 7881 states and 9307 transitions. [2018-09-18 11:50:55,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-18 11:50:55,519 INFO L276 IsEmpty]: Start isEmpty. Operand 7881 states and 9307 transitions. [2018-09-18 11:50:55,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2018-09-18 11:50:55,547 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:50:55,548 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:50:55,548 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:50:55,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1130088579, now seen corresponding path program 2 times [2018-09-18 11:50:55,549 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:50:55,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:55,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:55,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:55,551 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:50:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:56,217 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-18 11:50:56,413 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-18 11:50:57,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 567 proven. 533 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2018-09-18 11:50:57,586 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:57,586 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:50:57,596 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-18 11:50:57,597 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-18 11:50:57,757 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-18 11:50:57,757 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 11:50:57,765 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:58,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 947 proven. 2 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2018-09-18 11:50:58,323 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:58,483 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2018-09-18 11:50:59,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 561 proven. 111 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2018-09-18 11:50:59,154 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:59,154 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:50:59,171 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-18 11:50:59,171 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-18 11:50:59,510 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-18 11:50:59,510 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 11:50:59,526 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:00,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 932 proven. 17 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2018-09-18 11:51:00,323 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:51:00,778 WARN L178 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 25 [2018-09-18 11:51:02,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 240 proven. 747 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2018-09-18 11:51:02,726 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:51:02,726 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5, 10, 11] total 31 [2018-09-18 11:51:02,726 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:51:02,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-18 11:51:02,728 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-18 11:51:02,728 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=782, Unknown=0, NotChecked=0, Total=930 [2018-09-18 11:51:02,728 INFO L87 Difference]: Start difference. First operand 7881 states and 9307 transitions. Second operand 18 states. [2018-09-18 11:51:03,401 WARN L178 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 29 [2018-09-18 11:51:04,743 WARN L178 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 40 [2018-09-18 11:51:07,476 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2018-09-18 11:51:07,676 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2018-09-18 11:51:08,000 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2018-09-18 11:51:08,259 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2018-09-18 11:51:10,561 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2018-09-18 11:51:10,755 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2018-09-18 11:51:12,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:51:12,137 INFO L93 Difference]: Finished difference Result 19874 states and 24158 transitions. [2018-09-18 11:51:12,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-09-18 11:51:12,140 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 606 [2018-09-18 11:51:12,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:51:12,190 INFO L225 Difference]: With dead ends: 19874 [2018-09-18 11:51:12,190 INFO L226 Difference]: Without dead ends: 11999 [2018-09-18 11:51:12,228 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2501 GetRequests, 2422 SyntacticMatches, 14 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1188 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=813, Invalid=3609, Unknown=0, NotChecked=0, Total=4422 [2018-09-18 11:51:12,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11999 states. [2018-09-18 11:51:12,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11999 to 11268. [2018-09-18 11:51:12,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11268 states. [2018-09-18 11:51:12,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11268 states to 11268 states and 12850 transitions. [2018-09-18 11:51:12,462 INFO L78 Accepts]: Start accepts. Automaton has 11268 states and 12850 transitions. Word has length 606 [2018-09-18 11:51:12,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:51:12,463 INFO L480 AbstractCegarLoop]: Abstraction has 11268 states and 12850 transitions. [2018-09-18 11:51:12,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-18 11:51:12,463 INFO L276 IsEmpty]: Start isEmpty. Operand 11268 states and 12850 transitions. [2018-09-18 11:51:12,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 681 [2018-09-18 11:51:12,487 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:51:12,488 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:51:12,488 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:51:12,489 INFO L82 PathProgramCache]: Analyzing trace with hash 468792299, now seen corresponding path program 1 times [2018-09-18 11:51:12,489 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:51:12,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:12,490 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-18 11:51:12,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:12,490 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:51:12,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:13,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1325 backedges. 568 proven. 111 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2018-09-18 11:51:13,269 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:51:13,270 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:51:13,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:13,278 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:51:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:13,448 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:13,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1325 backedges. 955 proven. 2 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2018-09-18 11:51:13,937 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:51:14,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1325 backedges. 568 proven. 111 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2018-09-18 11:51:14,322 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:51:14,322 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:51:14,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:14,339 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:51:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:14,722 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:14,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1325 backedges. 955 proven. 2 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2018-09-18 11:51:14,942 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:51:15,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1325 backedges. 568 proven. 111 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2018-09-18 11:51:15,406 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:51:15,407 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 9 [2018-09-18 11:51:15,407 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:51:15,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-18 11:51:15,409 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-18 11:51:15,410 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:51:15,410 INFO L87 Difference]: Start difference. First operand 11268 states and 12850 transitions. Second operand 7 states. [2018-09-18 11:51:18,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:51:18,325 INFO L93 Difference]: Finished difference Result 30818 states and 40305 transitions. [2018-09-18 11:51:18,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-18 11:51:18,326 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 680 [2018-09-18 11:51:18,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:51:18,445 INFO L225 Difference]: With dead ends: 30818 [2018-09-18 11:51:18,445 INFO L226 Difference]: Without dead ends: 19739 [2018-09-18 11:51:18,561 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2736 GetRequests, 2721 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-09-18 11:51:18,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19739 states. [2018-09-18 11:51:19,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19739 to 19279. [2018-09-18 11:51:19,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19279 states. [2018-09-18 11:51:19,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19279 states to 19279 states and 22388 transitions. [2018-09-18 11:51:19,123 INFO L78 Accepts]: Start accepts. Automaton has 19279 states and 22388 transitions. Word has length 680 [2018-09-18 11:51:19,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:51:19,124 INFO L480 AbstractCegarLoop]: Abstraction has 19279 states and 22388 transitions. [2018-09-18 11:51:19,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-18 11:51:19,124 INFO L276 IsEmpty]: Start isEmpty. Operand 19279 states and 22388 transitions. [2018-09-18 11:51:19,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 770 [2018-09-18 11:51:19,149 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:51:19,150 INFO L376 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:51:19,150 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:51:19,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1123439824, now seen corresponding path program 1 times [2018-09-18 11:51:19,151 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:51:19,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:19,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:19,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:19,152 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:51:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:20,516 WARN L178 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-09-18 11:51:20,841 WARN L178 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-09-18 11:51:21,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2258 backedges. 831 proven. 828 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2018-09-18 11:51:21,825 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:51:21,826 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:51:21,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:21,833 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:51:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:22,027 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:22,519 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-18 11:51:22,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2258 backedges. 1352 proven. 2 refuted. 0 times theorem prover too weak. 904 trivial. 0 not checked. [2018-09-18 11:51:22,822 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:51:23,122 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-18 11:51:24,080 INFO L134 CoverageAnalysis]: Checked inductivity of 2258 backedges. 819 proven. 111 refuted. 0 times theorem prover too weak. 1328 trivial. 0 not checked. [2018-09-18 11:51:24,101 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:51:24,102 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:51:24,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:24,118 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:51:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:24,567 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:25,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2258 backedges. 1344 proven. 10 refuted. 0 times theorem prover too weak. 904 trivial. 0 not checked. [2018-09-18 11:51:25,078 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:51:26,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2258 backedges. 324 proven. 1068 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked. [2018-09-18 11:51:26,717 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:51:26,717 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5, 8, 8] total 28 [2018-09-18 11:51:26,717 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:51:26,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-18 11:51:26,719 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-18 11:51:26,720 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=623, Unknown=0, NotChecked=0, Total=756 [2018-09-18 11:51:26,720 INFO L87 Difference]: Start difference. First operand 19279 states and 22388 transitions. Second operand 17 states. [2018-09-18 11:51:34,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:51:34,773 INFO L93 Difference]: Finished difference Result 38258 states and 46900 transitions. [2018-09-18 11:51:34,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-09-18 11:51:34,773 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 769 [2018-09-18 11:51:34,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:51:34,865 INFO L225 Difference]: With dead ends: 38258 [2018-09-18 11:51:34,866 INFO L226 Difference]: Without dead ends: 18384 [2018-09-18 11:51:34,967 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3159 GetRequests, 3081 SyntacticMatches, 8 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1422 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1093, Invalid=4019, Unknown=0, NotChecked=0, Total=5112 [2018-09-18 11:51:34,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18384 states. [2018-09-18 11:51:35,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18384 to 17896. [2018-09-18 11:51:35,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17896 states. [2018-09-18 11:51:35,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17896 states to 17896 states and 20346 transitions. [2018-09-18 11:51:35,357 INFO L78 Accepts]: Start accepts. Automaton has 17896 states and 20346 transitions. Word has length 769 [2018-09-18 11:51:35,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:51:35,358 INFO L480 AbstractCegarLoop]: Abstraction has 17896 states and 20346 transitions. [2018-09-18 11:51:35,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-09-18 11:51:35,359 INFO L276 IsEmpty]: Start isEmpty. Operand 17896 states and 20346 transitions. [2018-09-18 11:51:35,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 841 [2018-09-18 11:51:35,373 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:51:35,374 INFO L376 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:51:35,374 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:51:35,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1253162342, now seen corresponding path program 1 times [2018-09-18 11:51:35,375 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:51:35,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:35,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:35,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:35,376 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:51:35,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:35,928 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:51:37,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1978 backedges. 707 proven. 551 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2018-09-18 11:51:37,130 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:51:37,131 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:51:37,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:37,142 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:51:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:37,344 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:37,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1978 backedges. 1272 proven. 2 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2018-09-18 11:51:37,682 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:51:38,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1978 backedges. 778 proven. 111 refuted. 0 times theorem prover too weak. 1089 trivial. 0 not checked. [2018-09-18 11:51:38,347 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:51:38,347 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:51:38,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:38,363 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:51:38,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:38,802 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:39,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1978 backedges. 1272 proven. 2 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2018-09-18 11:51:39,079 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:51:39,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1978 backedges. 778 proven. 111 refuted. 0 times theorem prover too weak. 1089 trivial. 0 not checked. [2018-09-18 11:51:39,548 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:51:39,550 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5, 5, 5] total 16 [2018-09-18 11:51:39,550 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:51:39,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-18 11:51:39,551 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-18 11:51:39,551 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2018-09-18 11:51:39,552 INFO L87 Difference]: Start difference. First operand 17896 states and 20346 transitions. Second operand 14 states. [2018-09-18 11:51:48,636 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-18 11:51:51,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:51:51,030 INFO L93 Difference]: Finished difference Result 35727 states and 41172 transitions. [2018-09-18 11:51:51,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2018-09-18 11:51:51,030 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 840 [2018-09-18 11:51:51,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:51:51,076 INFO L225 Difference]: With dead ends: 35727 [2018-09-18 11:51:51,076 INFO L226 Difference]: Without dead ends: 17694 [2018-09-18 11:51:51,135 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3527 GetRequests, 3424 SyntacticMatches, 5 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3630 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1617, Invalid=8283, Unknown=0, NotChecked=0, Total=9900 [2018-09-18 11:51:51,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17694 states. [2018-09-18 11:51:51,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17694 to 17205. [2018-09-18 11:51:51,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17205 states. [2018-09-18 11:51:51,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17205 states to 17205 states and 18968 transitions. [2018-09-18 11:51:51,419 INFO L78 Accepts]: Start accepts. Automaton has 17205 states and 18968 transitions. Word has length 840 [2018-09-18 11:51:51,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:51:51,420 INFO L480 AbstractCegarLoop]: Abstraction has 17205 states and 18968 transitions. [2018-09-18 11:51:51,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-18 11:51:51,420 INFO L276 IsEmpty]: Start isEmpty. Operand 17205 states and 18968 transitions. [2018-09-18 11:51:51,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1082 [2018-09-18 11:51:51,446 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:51:51,447 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, 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, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 11:51:51,448 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:51:51,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1935762193, now seen corresponding path program 1 times [2018-09-18 11:51:51,448 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:51:51,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:51,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:51,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:51,450 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:51:51,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:52,127 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 5 [2018-09-18 11:51:52,834 INFO L134 CoverageAnalysis]: Checked inductivity of 3245 backedges. 357 proven. 0 refuted. 0 times theorem prover too weak. 2888 trivial. 0 not checked. [2018-09-18 11:51:52,834 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:51:52,835 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:51:52,835 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:51:52,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:51:52,836 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:51:52,836 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:51:52,836 INFO L87 Difference]: Start difference. First operand 17205 states and 18968 transitions. Second operand 4 states. [2018-09-18 11:51:54,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:51:54,162 INFO L93 Difference]: Finished difference Result 36854 states and 40824 transitions. [2018-09-18 11:51:54,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:51:54,167 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1081 [2018-09-18 11:51:54,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:51:54,168 INFO L225 Difference]: With dead ends: 36854 [2018-09-18 11:51:54,168 INFO L226 Difference]: Without dead ends: 0 [2018-09-18 11:51:54,229 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:51:54,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-18 11:51:54,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-18 11:51:54,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-18 11:51:54,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-18 11:51:54,230 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1081 [2018-09-18 11:51:54,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:51:54,231 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-18 11:51:54,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:51:54,231 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-18 11:51:54,231 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-18 11:51:54,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-18 11:51:54,316 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:54,623 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:55,772 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:55,820 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:56,124 WARN L178 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 657 DAG size of output: 621 [2018-09-18 11:51:56,145 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:57,251 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:57,302 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:57,615 WARN L178 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 657 DAG size of output: 621 [2018-09-18 11:51:58,062 WARN L178 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 16 [2018-09-18 11:51:59,065 WARN L178 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 29 [2018-09-18 11:52:00,387 WARN L178 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 293 DAG size of output: 54 [2018-09-18 11:52:04,649 WARN L178 SmtUtils]: Spent 4.24 s on a formula simplification. DAG size of input: 621 DAG size of output: 58 [2018-09-18 11:52:08,868 WARN L178 SmtUtils]: Spent 4.21 s on a formula simplification. DAG size of input: 621 DAG size of output: 58 [2018-09-18 11:52:08,872 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-18 11:52:08,872 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 11:52:08,872 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-18 11:52:08,872 INFO L426 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-09-18 11:52:08,872 INFO L426 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-09-18 11:52:08,873 INFO L426 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,873 INFO L426 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,873 INFO L426 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,873 INFO L426 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-09-18 11:52:08,873 INFO L426 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-09-18 11:52:08,873 INFO L426 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-09-18 11:52:08,873 INFO L426 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-09-18 11:52:08,873 INFO L426 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-09-18 11:52:08,873 INFO L426 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-09-18 11:52:08,873 INFO L426 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-09-18 11:52:08,873 INFO L426 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 130) no Hoare annotation was computed. [2018-09-18 11:52:08,873 INFO L426 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-09-18 11:52:08,874 INFO L426 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,874 INFO L426 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,874 INFO L426 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,874 INFO L426 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-09-18 11:52:08,874 INFO L426 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-09-18 11:52:08,874 INFO L426 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-09-18 11:52:08,874 INFO L426 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-09-18 11:52:08,874 INFO L426 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-09-18 11:52:08,874 INFO L426 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-09-18 11:52:08,874 INFO L426 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-09-18 11:52:08,874 INFO L426 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-09-18 11:52:08,875 INFO L426 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,875 INFO L426 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,875 INFO L426 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,875 INFO L426 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-09-18 11:52:08,875 INFO L426 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-09-18 11:52:08,875 INFO L426 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-09-18 11:52:08,875 INFO L426 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-09-18 11:52:08,875 INFO L426 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-09-18 11:52:08,876 INFO L426 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-09-18 11:52:08,876 INFO L426 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-09-18 11:52:08,876 INFO L426 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-09-18 11:52:08,876 INFO L426 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-09-18 11:52:08,876 INFO L426 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,876 INFO L426 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,876 INFO L426 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,876 INFO L426 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-09-18 11:52:08,876 INFO L426 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-09-18 11:52:08,877 INFO L426 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-09-18 11:52:08,877 INFO L426 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-09-18 11:52:08,877 INFO L426 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-09-18 11:52:08,877 INFO L426 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-09-18 11:52:08,877 INFO L426 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-09-18 11:52:08,877 INFO L426 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,877 INFO L426 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,877 INFO L426 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,877 INFO L426 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-09-18 11:52:08,877 INFO L426 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-09-18 11:52:08,878 INFO L426 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-09-18 11:52:08,878 INFO L426 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-09-18 11:52:08,878 INFO L426 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-09-18 11:52:08,878 INFO L426 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-09-18 11:52:08,878 INFO L426 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-09-18 11:52:08,878 INFO L426 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-09-18 11:52:08,878 INFO L426 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-09-18 11:52:08,878 INFO L426 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,878 INFO L426 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,879 INFO L426 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,879 INFO L426 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,879 INFO L426 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-09-18 11:52:08,879 INFO L426 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-09-18 11:52:08,879 INFO L426 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-09-18 11:52:08,879 INFO L426 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-09-18 11:52:08,879 INFO L426 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-09-18 11:52:08,879 INFO L426 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-09-18 11:52:08,879 INFO L426 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-09-18 11:52:08,880 INFO L426 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-09-18 11:52:08,880 INFO L426 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,880 INFO L426 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,880 INFO L426 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,880 INFO L426 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-09-18 11:52:08,880 INFO L426 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-09-18 11:52:08,880 INFO L426 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-09-18 11:52:08,880 INFO L426 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-09-18 11:52:08,880 INFO L426 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-09-18 11:52:08,881 INFO L426 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-09-18 11:52:08,881 INFO L426 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-09-18 11:52:08,881 INFO L426 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-09-18 11:52:08,881 INFO L426 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,881 INFO L426 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,881 INFO L426 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,881 INFO L426 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-09-18 11:52:08,881 INFO L426 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-09-18 11:52:08,882 INFO L426 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-09-18 11:52:08,882 INFO L426 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-09-18 11:52:08,882 INFO L426 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-09-18 11:52:08,882 INFO L426 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-09-18 11:52:08,882 INFO L422 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse4 (= ~a12~0 |old(~a12~0)|)) (.cse5 (<= |old(~a21~0)| ~a21~0)) (.cse6 (= |old(~a15~0)| ~a15~0)) (.cse7 (<= ~a21~0 |old(~a21~0)|))) (let ((.cse3 (= 9 |old(~a21~0)|)) (.cse8 (= 7 |old(~a15~0)|)) (.cse9 (= 9 |old(~a15~0)|)) (.cse1 (= 10 |old(~a15~0)|)) (.cse2 (not (= 1 |old(~a24~0)|))) (.cse0 (and .cse4 .cse5 .cse6 (= 1 ~a24~0) .cse7))) (and (or .cse0 .cse1 (< |old(~a12~0)| 12) .cse2) (or .cse0 .cse1 (<= (+ |old(~a12~0)| 43) 0) .cse3 .cse2) (or .cse1 .cse2 .cse0 (not (= 8 |old(~a21~0)|))) (or .cse1 (not (= 6 |old(~a21~0)|)) (and .cse4 (= ~a24~0 |old(~a24~0)|) .cse5 .cse6 .cse7) (< 0 (+ |old(~a12~0)| 49)) .cse8 .cse9) (or .cse1 .cse3 .cse2 .cse0 .cse9) (or .cse1 .cse8 .cse2 .cse0 .cse9) (or .cse1 (< |old(~a21~0)| 10) .cse2 .cse0)))) [2018-09-18 11:52:08,882 INFO L426 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-09-18 11:52:08,883 INFO L426 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-09-18 11:52:08,883 INFO L426 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,883 INFO L426 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,883 INFO L426 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,883 INFO L426 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-09-18 11:52:08,883 INFO L426 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-09-18 11:52:08,883 INFO L426 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-09-18 11:52:08,883 INFO L426 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-09-18 11:52:08,883 INFO L426 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-09-18 11:52:08,884 INFO L426 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-09-18 11:52:08,884 INFO L426 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-09-18 11:52:08,884 INFO L426 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-09-18 11:52:08,884 INFO L426 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,884 INFO L426 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,884 INFO L426 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,884 INFO L426 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-09-18 11:52:08,884 INFO L426 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-09-18 11:52:08,885 INFO L426 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-09-18 11:52:08,885 INFO L426 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-09-18 11:52:08,885 INFO L426 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-09-18 11:52:08,885 INFO L426 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-09-18 11:52:08,885 INFO L426 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-09-18 11:52:08,885 INFO L426 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-09-18 11:52:08,885 INFO L426 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,885 INFO L426 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,885 INFO L426 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,886 INFO L426 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-09-18 11:52:08,886 INFO L426 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-09-18 11:52:08,886 INFO L426 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-09-18 11:52:08,886 INFO L426 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-09-18 11:52:08,886 INFO L426 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-09-18 11:52:08,886 INFO L426 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-09-18 11:52:08,886 INFO L426 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-09-18 11:52:08,886 INFO L426 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-09-18 11:52:08,886 INFO L426 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,886 INFO L426 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,887 INFO L426 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,887 INFO L426 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-09-18 11:52:08,887 INFO L426 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-09-18 11:52:08,887 INFO L426 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-09-18 11:52:08,887 INFO L426 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-09-18 11:52:08,887 INFO L426 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-09-18 11:52:08,887 INFO L426 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-09-18 11:52:08,887 INFO L426 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-09-18 11:52:08,887 INFO L426 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-09-18 11:52:08,887 INFO L426 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,888 INFO L426 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,888 INFO L426 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-09-18 11:52:08,888 INFO L426 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-09-18 11:52:08,888 INFO L426 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-09-18 11:52:08,888 INFO L426 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-09-18 11:52:08,888 INFO L426 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-09-18 11:52:08,888 INFO L426 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-09-18 11:52:08,888 INFO L426 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-09-18 11:52:08,888 INFO L426 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-09-18 11:52:08,888 INFO L426 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,889 INFO L426 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,889 INFO L426 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-09-18 11:52:08,889 INFO L426 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-09-18 11:52:08,889 INFO L426 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-09-18 11:52:08,889 INFO L426 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-09-18 11:52:08,889 INFO L426 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-09-18 11:52:08,889 INFO L426 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-09-18 11:52:08,889 INFO L426 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,889 INFO L426 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,889 INFO L426 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-09-18 11:52:08,890 INFO L426 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-09-18 11:52:08,890 INFO L426 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-09-18 11:52:08,890 INFO L426 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-09-18 11:52:08,890 INFO L426 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-09-18 11:52:08,890 INFO L426 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-09-18 11:52:08,890 INFO L426 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-09-18 11:52:08,890 INFO L426 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-09-18 11:52:08,890 INFO L426 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,890 INFO L426 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,890 INFO L426 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-09-18 11:52:08,890 INFO L426 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-09-18 11:52:08,891 INFO L426 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-09-18 11:52:08,891 INFO L426 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-09-18 11:52:08,891 INFO L426 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-09-18 11:52:08,891 INFO L426 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-09-18 11:52:08,891 INFO L426 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-09-18 11:52:08,891 INFO L426 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,891 INFO L426 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,891 INFO L426 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,891 INFO L426 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-09-18 11:52:08,891 INFO L426 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-09-18 11:52:08,892 INFO L426 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-09-18 11:52:08,892 INFO L426 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-09-18 11:52:08,892 INFO L426 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-09-18 11:52:08,892 INFO L426 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-09-18 11:52:08,892 INFO L426 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,892 INFO L426 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,892 INFO L426 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-09-18 11:52:08,892 INFO L426 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,892 INFO L426 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-09-18 11:52:08,892 INFO L426 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-09-18 11:52:08,892 INFO L426 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-09-18 11:52:08,893 INFO L426 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-09-18 11:52:08,893 INFO L426 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-09-18 11:52:08,893 INFO L426 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-09-18 11:52:08,893 INFO L426 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-09-18 11:52:08,893 INFO L426 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-09-18 11:52:08,893 INFO L426 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-09-18 11:52:08,893 INFO L426 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-09-18 11:52:08,893 INFO L426 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,893 INFO L426 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,893 INFO L426 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,894 INFO L426 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-09-18 11:52:08,894 INFO L426 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-09-18 11:52:08,894 INFO L426 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-09-18 11:52:08,894 INFO L426 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-09-18 11:52:08,894 INFO L426 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-09-18 11:52:08,894 INFO L426 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-09-18 11:52:08,894 INFO L426 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-09-18 11:52:08,894 INFO L426 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-09-18 11:52:08,894 INFO L426 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,894 INFO L426 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,894 INFO L426 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,895 INFO L426 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-09-18 11:52:08,895 INFO L426 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-09-18 11:52:08,895 INFO L426 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-09-18 11:52:08,895 INFO L426 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-09-18 11:52:08,895 INFO L426 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-09-18 11:52:08,895 INFO L426 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-09-18 11:52:08,895 INFO L426 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-09-18 11:52:08,895 INFO L426 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-09-18 11:52:08,895 INFO L426 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,895 INFO L426 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,895 INFO L426 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,896 INFO L426 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-09-18 11:52:08,896 INFO L426 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-09-18 11:52:08,896 INFO L426 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-09-18 11:52:08,896 INFO L426 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-09-18 11:52:08,896 INFO L426 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-09-18 11:52:08,896 INFO L426 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-09-18 11:52:08,896 INFO L426 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-09-18 11:52:08,896 INFO L426 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-09-18 11:52:08,896 INFO L426 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-09-18 11:52:08,897 INFO L426 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,897 INFO L426 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,897 INFO L426 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:08,897 INFO L426 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-09-18 11:52:08,897 INFO L426 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-09-18 11:52:08,897 INFO L426 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-09-18 11:52:08,897 INFO L426 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-09-18 11:52:08,897 INFO L426 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-09-18 11:52:08,897 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-18 11:52:08,898 INFO L422 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a21~0 7) (<= 7 ~a21~0) (= 1 ~a24~0) (= 8 ~a15~0) (<= (+ ~a12~0 49) 0)) [2018-09-18 11:52:08,898 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-18 11:52:08,898 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-18 11:52:08,898 INFO L422 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (< 0 (+ |old(~a12~0)| 49)) (and (= ~a12~0 |old(~a12~0)|) (<= |old(~a21~0)| ~a21~0) (= 1 ~a24~0) (<= ~a21~0 |old(~a21~0)|) (= 8 ~a15~0)) (not (= 8 |old(~a15~0)|)) (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|))) [2018-09-18 11:52:08,898 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-09-18 11:52:08,898 INFO L422 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse2 (not (= ~a15~0 9))) (.cse3 (not (= ~a15~0 7))) (.cse0 (not (= ~a15~0 10))) (.cse4 (not (= 9 ~a21~0))) (.cse1 (= 1 ~a24~0))) (or (and .cse0 (<= 12 ~a12~0) .cse1) (and .cse0 (= ~a21~0 8) .cse1) (and .cse0 (and .cse2 .cse1 .cse3)) (and .cse0 (and .cse2 .cse4 .cse1)) (< 0 (+ |old(~a12~0)| 49)) (and (= 6 ~a21~0) (<= (+ ~a12~0 49) 0) .cse2 .cse0 .cse3) (and .cse0 (and .cse1 (<= 10 ~a21~0))) (not (= 1 |old(~a24~0)|)) (not (= 8 |old(~a15~0)|)) (and .cse0 (< 0 (+ ~a12~0 43)) (and .cse4 .cse1)) (< 7 |old(~a21~0)|) (< |old(~a21~0)| 7))) [2018-09-18 11:52:08,899 INFO L426 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-09-18 11:52:08,899 INFO L426 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-09-18 11:52:08,899 INFO L426 ceAbstractionStarter]: For program point L880-1(lines 880 889) no Hoare annotation was computed. [2018-09-18 11:52:08,899 INFO L422 ceAbstractionStarter]: At program point L880-3(lines 880 889) the Hoare annotation is: (let ((.cse2 (not (= ~a15~0 9))) (.cse3 (not (= ~a15~0 7))) (.cse0 (not (= ~a15~0 10))) (.cse4 (not (= 9 ~a21~0))) (.cse1 (= 1 ~a24~0))) (or (and .cse0 (<= 12 ~a12~0) .cse1) (and .cse0 (= ~a21~0 8) .cse1) (and .cse0 (and .cse2 .cse1 .cse3)) (and .cse0 (and .cse2 .cse4 .cse1)) (< 0 (+ |old(~a12~0)| 49)) (and (= 6 ~a21~0) (<= (+ ~a12~0 49) 0) .cse2 .cse0 .cse3) (and .cse0 (and .cse1 (<= 10 ~a21~0))) (not (= 1 |old(~a24~0)|)) (not (= 8 |old(~a15~0)|)) (and .cse0 (< 0 (+ ~a12~0 43)) (and .cse4 .cse1)) (< 7 |old(~a21~0)|) (< |old(~a21~0)| 7))) [2018-09-18 11:52:08,899 INFO L426 ceAbstractionStarter]: For program point L880-4(lines 874 890) no Hoare annotation was computed. [2018-09-18 11:52:08,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 11:52:08 BoogieIcfgContainer [2018-09-18 11:52:08,917 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 11:52:08,918 INFO L168 Benchmark]: Toolchain (without parser) took 124887.47 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 3.4 GB in the end (delta: -2.0 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-09-18 11:52:08,919 INFO L168 Benchmark]: CDTParser took 0.50 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 11:52:08,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 724.62 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-18 11:52:08,920 INFO L168 Benchmark]: Boogie Procedure Inliner took 124.22 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 11:52:08,921 INFO L168 Benchmark]: Boogie Preprocessor took 276.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 788.5 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -885.1 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2018-09-18 11:52:08,921 INFO L168 Benchmark]: RCFGBuilder took 4038.27 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 123.8 MB). Peak memory consumption was 123.8 MB. Max. memory is 7.1 GB. [2018-09-18 11:52:08,922 INFO L168 Benchmark]: TraceAbstraction took 119712.91 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-09-18 11:52:08,927 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 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 724.62 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 124.22 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 276.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 788.5 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -885.1 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4038.27 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 123.8 MB). Peak memory consumption was 123.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 119712.91 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.4 GB in the end (delta: -1.3 GB). 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: 130]: 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: ((((((((((((!(a15 == 10) && 12 <= a12) && 1 == a24) || ((!(a15 == 10) && a21 == 8) && 1 == a24)) || (!(a15 == 10) && (!(a15 == 9) && 1 == a24) && !(a15 == 7))) || (!(a15 == 10) && (!(a15 == 9) && !(9 == a21)) && 1 == a24)) || 0 < \old(a12) + 49) || ((((6 == a21 && a12 + 49 <= 0) && !(a15 == 9)) && !(a15 == 10)) && !(a15 == 7))) || (!(a15 == 10) && 1 == a24 && 10 <= a21)) || !(1 == \old(a24))) || !(8 == \old(a15))) || ((!(a15 == 10) && 0 < a12 + 43) && !(9 == a21) && 1 == a24)) || 7 < \old(a21)) || \old(a21) < 7 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. SAFE Result, 119.6s OverallTime, 13 OverallIterations, 9 TraceHistogramMax, 60.5s AutomataDifference, 0.0s DeadEndRemovalTime, 14.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 1609 SDtfs, 28275 SDslu, 2703 SDs, 0 SdLazy, 34448 SolverSat, 5678 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 41.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19119 GetRequests, 18689 SyntacticMatches, 68 SemanticMatches, 362 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7095 ImplicationChecksByTransitivity, 19.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19279occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 3786 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 414 PreInvPairs, 588 NumberOfFragments, 541 HoareAnnotationTreeSize, 414 FomulaSimplifications, 116453 FormulaSimplificationTreeSizeReduction, 3.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 181026 FormulaSimplificationTreeSizeReductionInter, 11.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 3.9s SatisfiabilityAnalysisTime, 31.5s InterpolantComputationTime, 15714 NumberOfCodeBlocks, 15714 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 24985 ConstructedInterpolants, 0 QuantifiedInterpolants, 72759266 SizeOfPredicates, 60 NumberOfNonLiveVariables, 13876 ConjunctsInSsa, 292 ConjunctsInUnsatCore, 45 InterpolantComputations, 6 PerfectInterpolantSequences, 44124/51951 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_label42_true-unreach-call_false-termination.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_11-52-08-942.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label42_true-unreach-call_false-termination.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_11-52-08-942.csv Received shutdown request...