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/loop-lit/bhmr2007_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 10:01:56,176 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 10:01:56,178 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 10:01:56,192 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 10:01:56,193 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 10:01:56,194 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 10:01:56,195 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 10:01:56,197 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 10:01:56,199 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 10:01:56,200 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 10:01:56,201 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 10:01:56,201 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 10:01:56,202 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 10:01:56,203 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 10:01:56,204 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 10:01:56,205 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 10:01:56,207 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 10:01:56,209 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 10:01:56,211 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 10:01:56,213 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 10:01:56,214 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 10:01:56,215 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 10:01:56,218 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 10:01:56,218 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 10:01:56,219 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 10:01:56,219 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 10:01:56,221 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 10:01:56,221 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 10:01:56,222 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 10:01:56,223 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 10:01:56,223 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 10:01:56,224 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 10:01:56,224 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 10:01:56,225 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 10:01:56,226 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 10:01:56,226 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 10:01:56,227 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 10:01:56,241 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 10:01:56,242 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 10:01:56,243 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 10:01:56,243 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 10:01:56,243 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 10:01:56,243 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 10:01:56,244 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 10:01:56,244 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 10:01:56,244 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 10:01:56,244 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 10:01:56,244 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 10:01:56,244 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 10:01:56,245 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 10:01:56,245 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 10:01:56,246 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 10:01:56,246 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 10:01:56,246 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 10:01:56,246 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 10:01:56,246 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 10:01:56,246 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 10:01:56,247 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 10:01:56,247 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 10:01:56,247 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 10:01:56,247 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 10:01:56,247 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 10:01:56,248 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 10:01:56,248 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 10:01:56,248 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 10:01:56,248 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 10:01:56,248 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 10:01:56,248 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 10:01:56,249 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 10:01:56,249 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 10:01:56,249 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 10:01:56,291 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 10:01:56,304 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 10:01:56,308 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 10:01:56,309 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 10:01:56,309 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 10:01:56,310 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/bhmr2007_true-unreach-call_true-termination.c.i [2018-09-18 10:01:56,649 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03cf6db27/9d340303e9c246d9b5ea98ddd0eedaa3/FLAG6404baef6 [2018-09-18 10:01:56,812 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 10:01:56,813 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/bhmr2007_true-unreach-call_true-termination.c.i [2018-09-18 10:01:56,821 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03cf6db27/9d340303e9c246d9b5ea98ddd0eedaa3/FLAG6404baef6 [2018-09-18 10:01:56,845 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03cf6db27/9d340303e9c246d9b5ea98ddd0eedaa3 [2018-09-18 10:01:56,854 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 10:01:56,857 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 10:01:56,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 10:01:56,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 10:01:56,867 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 10:01:56,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 10:01:56" (1/1) ... [2018-09-18 10:01:56,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60d8d9e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:01:56, skipping insertion in model container [2018-09-18 10:01:56,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 10:01:56" (1/1) ... [2018-09-18 10:01:56,885 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 10:01:57,104 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 10:01:57,124 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 10:01:57,136 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 10:01:57,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:01:57 WrapperNode [2018-09-18 10:01:57,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 10:01:57,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 10:01:57,157 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 10:01:57,157 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 10:01:57,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:01:57" (1/1) ... [2018-09-18 10:01:57,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:01:57" (1/1) ... [2018-09-18 10:01:57,180 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 10:01:57,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 10:01:57,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 10:01:57,181 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 10:01:57,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:01:57" (1/1) ... [2018-09-18 10:01:57,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:01:57" (1/1) ... [2018-09-18 10:01:57,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:01:57" (1/1) ... [2018-09-18 10:01:57,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:01:57" (1/1) ... [2018-09-18 10:01:57,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:01:57" (1/1) ... [2018-09-18 10:01:57,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:01:57" (1/1) ... [2018-09-18 10:01:57,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:01:57" (1/1) ... [2018-09-18 10:01:57,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 10:01:57,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 10:01:57,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 10:01:57,204 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 10:01:57,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:01:57" (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 10:01:57,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 10:01:57,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 10:01:57,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 10:01:57,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 10:01:57,285 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 10:01:57,285 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 10:01:57,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-18 10:01:57,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-18 10:01:57,668 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 10:01:57,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 10:01:57 BoogieIcfgContainer [2018-09-18 10:01:57,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 10:01:57,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 10:01:57,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 10:01:57,685 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 10:01:57,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 10:01:56" (1/3) ... [2018-09-18 10:01:57,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e5bfc77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 10:01:57, skipping insertion in model container [2018-09-18 10:01:57,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:01:57" (2/3) ... [2018-09-18 10:01:57,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e5bfc77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 10:01:57, skipping insertion in model container [2018-09-18 10:01:57,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 10:01:57" (3/3) ... [2018-09-18 10:01:57,692 INFO L112 eAbstractionObserver]: Analyzing ICFG bhmr2007_true-unreach-call_true-termination.c.i [2018-09-18 10:01:57,712 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 10:01:57,720 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 10:01:57,768 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 10:01:57,769 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 10:01:57,769 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 10:01:57,770 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 10:01:57,770 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 10:01:57,770 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 10:01:57,770 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 10:01:57,770 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 10:01:57,771 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 10:01:57,790 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-09-18 10:01:57,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-18 10:01:57,798 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:01:57,799 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 10:01:57,800 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:01:57,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1421497933, now seen corresponding path program 1 times [2018-09-18 10:01:57,809 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:01:57,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:01:57,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:01:57,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:01:57,861 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:01:57,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:01:57,954 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 10:01:57,957 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 10:01:57,957 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-18 10:01:57,957 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 10:01:57,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-18 10:01:57,978 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-18 10:01:57,979 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-18 10:01:57,981 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2018-09-18 10:01:58,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:01:58,002 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2018-09-18 10:01:58,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-18 10:01:58,004 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-09-18 10:01:58,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:01:58,013 INFO L225 Difference]: With dead ends: 34 [2018-09-18 10:01:58,013 INFO L226 Difference]: Without dead ends: 15 [2018-09-18 10:01:58,017 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-18 10:01:58,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-09-18 10:01:58,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-09-18 10:01:58,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-09-18 10:01:58,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-09-18 10:01:58,052 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 11 [2018-09-18 10:01:58,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:01:58,053 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2018-09-18 10:01:58,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-18 10:01:58,053 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2018-09-18 10:01:58,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-18 10:01:58,054 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:01:58,054 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 10:01:58,054 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:01:58,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1574385422, now seen corresponding path program 1 times [2018-09-18 10:01:58,055 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:01:58,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:01:58,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:01:58,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:01:58,057 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:01:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:01:58,276 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2018-09-18 10:01:58,512 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 10:01:58,513 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 10:01:58,513 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-18 10:01:58,513 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 10:01:58,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-18 10:01:58,515 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-18 10:01:58,515 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-18 10:01:58,516 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 7 states. [2018-09-18 10:01:58,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:01:58,840 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2018-09-18 10:01:58,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 10:01:58,841 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2018-09-18 10:01:58,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:01:58,844 INFO L225 Difference]: With dead ends: 23 [2018-09-18 10:01:58,844 INFO L226 Difference]: Without dead ends: 18 [2018-09-18 10:01:58,845 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-18 10:01:58,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-09-18 10:01:58,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2018-09-18 10:01:58,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-09-18 10:01:58,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-09-18 10:01:58,852 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 12 [2018-09-18 10:01:58,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:01:58,852 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-09-18 10:01:58,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-18 10:01:58,853 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-09-18 10:01:58,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-18 10:01:58,853 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:01:58,854 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 10:01:58,854 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:01:58,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1592010396, now seen corresponding path program 1 times [2018-09-18 10:01:58,855 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:01:58,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:01:58,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:01:58,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:01:58,856 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:01:58,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:01:59,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:01:59,393 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:01:59,394 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 10:01:59,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:01:59,407 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:01:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:01:59,430 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:01:59,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:01:59,893 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:02:00,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:02:00,299 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:02:00,299 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 10:02:00,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:02:00,316 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:02:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:02:00,336 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:02:00,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:02:00,375 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:02:00,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:02:00,440 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 10:02:00,440 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9] total 19 [2018-09-18 10:02:00,441 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 10:02:00,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-18 10:02:00,442 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-18 10:02:00,443 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2018-09-18 10:02:00,443 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 14 states. [2018-09-18 10:02:00,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:02:00,911 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2018-09-18 10:02:00,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-18 10:02:00,912 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2018-09-18 10:02:00,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:02:00,913 INFO L225 Difference]: With dead ends: 32 [2018-09-18 10:02:00,913 INFO L226 Difference]: Without dead ends: 26 [2018-09-18 10:02:00,914 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 48 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2018-09-18 10:02:00,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-09-18 10:02:00,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2018-09-18 10:02:00,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-09-18 10:02:00,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2018-09-18 10:02:00,920 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 16 [2018-09-18 10:02:00,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:02:00,920 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2018-09-18 10:02:00,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-18 10:02:00,921 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2018-09-18 10:02:00,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-18 10:02:00,921 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:02:00,922 INFO L376 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 10:02:00,922 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:02:00,922 INFO L82 PathProgramCache]: Analyzing trace with hash 2103962116, now seen corresponding path program 1 times [2018-09-18 10:02:00,922 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:02:00,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:02:00,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:02:00,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:02:00,924 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:02:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:02:01,176 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-18 10:02:01,177 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:02:01,177 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 10:02:01,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:02:01,187 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:02:01,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:02:01,200 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:02:01,602 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:02:01,602 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:02:01,778 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-18 10:02:01,799 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:02:01,799 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 5 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 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 10:02:01,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:02:01,815 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:02:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:02:01,850 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:02:01,990 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:02:01,991 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:02:02,090 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-18 10:02:02,092 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 10:02:02,092 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 10, 11, 10] total 22 [2018-09-18 10:02:02,093 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 10:02:02,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-18 10:02:02,094 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-18 10:02:02,094 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2018-09-18 10:02:02,094 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 17 states. [2018-09-18 10:02:03,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:02:03,084 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2018-09-18 10:02:03,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-18 10:02:03,084 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 20 [2018-09-18 10:02:03,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:02:03,085 INFO L225 Difference]: With dead ends: 34 [2018-09-18 10:02:03,085 INFO L226 Difference]: Without dead ends: 0 [2018-09-18 10:02:03,087 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 63 SyntacticMatches, 6 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=181, Invalid=941, Unknown=0, NotChecked=0, Total=1122 [2018-09-18 10:02:03,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-18 10:02:03,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-18 10:02:03,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-18 10:02:03,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-18 10:02:03,088 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2018-09-18 10:02:03,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:02:03,088 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-18 10:02:03,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-09-18 10:02:03,089 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-18 10:02:03,089 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-18 10:02:03,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-18 10:02:03,223 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-18 10:02:03,223 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-18 10:02:03,223 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-18 10:02:03,223 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-18 10:02:03,223 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-18 10:02:03,224 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-18 10:02:03,224 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 10 26) no Hoare annotation was computed. [2018-09-18 10:02:03,224 INFO L426 ceAbstractionStarter]: For program point L15(lines 15 21) no Hoare annotation was computed. [2018-09-18 10:02:03,224 INFO L426 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-09-18 10:02:03,224 INFO L426 ceAbstractionStarter]: For program point L15-2(lines 15 21) no Hoare annotation was computed. [2018-09-18 10:02:03,224 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 10 26) no Hoare annotation was computed. [2018-09-18 10:02:03,224 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 10 26) the Hoare annotation is: true [2018-09-18 10:02:03,225 INFO L426 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-09-18 10:02:03,225 INFO L426 ceAbstractionStarter]: For program point L14-1(lines 14 23) no Hoare annotation was computed. [2018-09-18 10:02:03,225 INFO L422 ceAbstractionStarter]: At program point L14-3(lines 14 23) the Hoare annotation is: (let ((.cse1 (* 3 main_~i~0)) (.cse0 (+ main_~a~0 main_~b~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (<= .cse0 (* 3 main_~n~0)))) [2018-09-18 10:02:03,225 INFO L422 ceAbstractionStarter]: At program point L14-4(lines 14 23) the Hoare annotation is: (let ((.cse1 (* 3 main_~n~0)) (.cse0 (+ main_~a~0 main_~b~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2018-09-18 10:02:03,225 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-18 10:02:03,225 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-18 10:02:03,225 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-18 10:02:03,225 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-18 10:02:03,226 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-18 10:02:03,226 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-18 10:02:03,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 10:02:03 BoogieIcfgContainer [2018-09-18 10:02:03,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 10:02:03,242 INFO L168 Benchmark]: Toolchain (without parser) took 6386.73 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -462.2 MB). Peak memory consumption was 288.0 MB. Max. memory is 7.1 GB. [2018-09-18 10:02:03,243 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 10:02:03,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.85 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 10:02:03,245 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.62 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 10:02:03,246 INFO L168 Benchmark]: Boogie Preprocessor took 22.59 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 10:02:03,247 INFO L168 Benchmark]: RCFGBuilder took 465.82 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -801.4 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-09-18 10:02:03,249 INFO L168 Benchmark]: TraceAbstraction took 5569.84 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 328.6 MB). Peak memory consumption was 328.6 MB. Max. memory is 7.1 GB. [2018-09-18 10:02:03,256 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 297.85 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 23.62 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.59 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 465.82 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -801.4 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5569.84 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 328.6 MB). Peak memory consumption was 328.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 14]: Loop Invariant Derived loop invariant: (a + b <= 3 * i && 3 * i <= a + b) && a + b <= 3 * n - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. SAFE Result, 5.4s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 55 SDtfs, 25 SDslu, 172 SDs, 0 SdLazy, 268 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 187 GetRequests, 115 SyntacticMatches, 12 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 12 PreInvPairs, 21 NumberOfFragments, 42 HoareAnnotationTreeSize, 12 FomulaSimplifications, 97 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 145 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 191 ConstructedInterpolants, 0 QuantifiedInterpolants, 29532 SizeOfPredicates, 16 NumberOfNonLiveVariables, 200 ConjunctsInSsa, 88 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 6/50 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/bhmr2007_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_10-02-03-277.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/bhmr2007_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_10-02-03-277.csv Received shutdown request...