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/loops/sum01_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 09:56:17,279 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 09:56:17,282 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 09:56:17,300 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 09:56:17,300 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 09:56:17,301 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 09:56:17,303 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 09:56:17,305 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 09:56:17,308 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 09:56:17,309 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 09:56:17,310 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 09:56:17,310 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 09:56:17,312 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 09:56:17,313 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 09:56:17,322 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 09:56:17,323 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 09:56:17,324 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 09:56:17,326 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 09:56:17,329 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 09:56:17,331 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 09:56:17,333 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 09:56:17,334 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 09:56:17,337 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 09:56:17,338 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 09:56:17,338 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 09:56:17,339 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 09:56:17,341 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 09:56:17,342 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 09:56:17,342 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 09:56:17,345 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 09:56:17,345 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 09:56:17,347 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 09:56:17,348 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 09:56:17,348 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 09:56:17,350 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 09:56:17,350 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 09:56:17,351 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 09:56:17,369 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 09:56:17,369 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 09:56:17,370 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 09:56:17,370 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 09:56:17,370 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 09:56:17,370 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 09:56:17,371 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 09:56:17,371 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 09:56:17,371 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 09:56:17,371 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 09:56:17,371 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 09:56:17,372 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 09:56:17,372 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 09:56:17,372 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 09:56:17,373 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 09:56:17,373 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 09:56:17,373 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 09:56:17,373 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 09:56:17,373 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 09:56:17,373 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 09:56:17,374 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 09:56:17,374 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 09:56:17,374 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 09:56:17,374 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 09:56:17,374 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 09:56:17,375 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 09:56:17,375 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 09:56:17,375 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 09:56:17,375 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 09:56:17,375 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 09:56:17,376 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 09:56:17,376 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 09:56:17,376 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 09:56:17,376 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 09:56:17,438 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 09:56:17,451 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 09:56:17,457 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 09:56:17,458 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 09:56:17,459 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 09:56:17,460 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum01_true-unreach-call_true-termination.i [2018-09-18 09:56:17,808 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/907d80ec5/d3ac46b8dab8473eae6448981cee3861/FLAGbaf136ae0 [2018-09-18 09:56:17,957 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 09:56:17,958 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum01_true-unreach-call_true-termination.i [2018-09-18 09:56:17,963 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/907d80ec5/d3ac46b8dab8473eae6448981cee3861/FLAGbaf136ae0 [2018-09-18 09:56:17,979 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/907d80ec5/d3ac46b8dab8473eae6448981cee3861 [2018-09-18 09:56:17,990 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 09:56:17,993 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 09:56:17,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 09:56:17,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 09:56:18,002 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 09:56:18,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 09:56:17" (1/1) ... [2018-09-18 09:56:18,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5950746c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:18, skipping insertion in model container [2018-09-18 09:56:18,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 09:56:17" (1/1) ... [2018-09-18 09:56:18,018 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 09:56:18,260 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 09:56:18,278 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 09:56:18,283 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 09:56:18,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:18 WrapperNode [2018-09-18 09:56:18,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 09:56:18,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 09:56:18,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 09:56:18,302 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 09:56:18,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:18" (1/1) ... [2018-09-18 09:56:18,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:18" (1/1) ... [2018-09-18 09:56:18,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 09:56:18,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 09:56:18,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 09:56:18,325 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 09:56:18,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:18" (1/1) ... [2018-09-18 09:56:18,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:18" (1/1) ... [2018-09-18 09:56:18,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:18" (1/1) ... [2018-09-18 09:56:18,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:18" (1/1) ... [2018-09-18 09:56:18,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:18" (1/1) ... [2018-09-18 09:56:18,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:18" (1/1) ... [2018-09-18 09:56:18,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:18" (1/1) ... [2018-09-18 09:56:18,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 09:56:18,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 09:56:18,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 09:56:18,346 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 09:56:18,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:18" (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 09:56:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 09:56:18,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 09:56:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 09:56:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 09:56:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 09:56:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 09:56:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-18 09:56:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-18 09:56:18,701 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 09:56:18,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 09:56:18 BoogieIcfgContainer [2018-09-18 09:56:18,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 09:56:18,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 09:56:18,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 09:56:18,706 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 09:56:18,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 09:56:17" (1/3) ... [2018-09-18 09:56:18,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a95a159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 09:56:18, skipping insertion in model container [2018-09-18 09:56:18,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:18" (2/3) ... [2018-09-18 09:56:18,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a95a159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 09:56:18, skipping insertion in model container [2018-09-18 09:56:18,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 09:56:18" (3/3) ... [2018-09-18 09:56:18,710 INFO L112 eAbstractionObserver]: Analyzing ICFG sum01_true-unreach-call_true-termination.i [2018-09-18 09:56:18,720 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 09:56:18,728 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 09:56:18,810 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 09:56:18,811 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 09:56:18,811 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 09:56:18,811 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 09:56:18,812 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 09:56:18,812 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 09:56:18,812 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 09:56:18,812 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 09:56:18,813 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 09:56:18,835 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-09-18 09:56:18,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-18 09:56:18,841 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:56:18,842 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:56:18,843 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:56:18,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1280988026, now seen corresponding path program 1 times [2018-09-18 09:56:18,852 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:56:18,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:18,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:18,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:18,910 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:56:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:18,977 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 09:56:18,979 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 09:56:18,979 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-18 09:56:18,979 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 09:56:18,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-18 09:56:18,994 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-18 09:56:18,995 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-18 09:56:18,998 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2018-09-18 09:56:19,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:56:19,018 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2018-09-18 09:56:19,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-18 09:56:19,020 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-09-18 09:56:19,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:56:19,029 INFO L225 Difference]: With dead ends: 31 [2018-09-18 09:56:19,030 INFO L226 Difference]: Without dead ends: 14 [2018-09-18 09:56:19,034 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 09:56:19,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-09-18 09:56:19,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-09-18 09:56:19,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-18 09:56:19,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-09-18 09:56:19,073 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-09-18 09:56:19,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:56:19,073 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-09-18 09:56:19,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-18 09:56:19,074 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-09-18 09:56:19,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-18 09:56:19,074 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:56:19,075 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:56:19,075 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:56:19,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1336229576, now seen corresponding path program 1 times [2018-09-18 09:56:19,076 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:56:19,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:19,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:19,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:19,077 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:56:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:19,373 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 09:56:19,374 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 09:56:19,374 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 09:56:19,374 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 09:56:19,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 09:56:19,377 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 09:56:19,377 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 09:56:19,378 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 5 states. [2018-09-18 09:56:19,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:56:19,587 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-09-18 09:56:19,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-18 09:56:19,589 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-09-18 09:56:19,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:56:19,590 INFO L225 Difference]: With dead ends: 21 [2018-09-18 09:56:19,590 INFO L226 Difference]: Without dead ends: 16 [2018-09-18 09:56:19,591 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-18 09:56:19,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-09-18 09:56:19,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-09-18 09:56:19,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-09-18 09:56:19,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-09-18 09:56:19,597 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 12 [2018-09-18 09:56:19,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:56:19,597 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-09-18 09:56:19,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 09:56:19,598 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-09-18 09:56:19,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-18 09:56:19,598 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:56:19,598 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:56:19,599 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:56:19,599 INFO L82 PathProgramCache]: Analyzing trace with hash -214348638, now seen corresponding path program 1 times [2018-09-18 09:56:19,599 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:56:19,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:19,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:19,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:19,601 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:56:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:20,035 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 14 [2018-09-18 09:56:20,241 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 09:56:20,242 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:56:20,242 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 09:56:20,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:20,256 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 09:56:20,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:20,293 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:56:20,528 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-18 09:56:20,768 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 09:56:20,768 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:56:21,457 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 09:56:21,493 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:56:21,493 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 09:56:21,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:21,524 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 09:56:21,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:21,547 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:56:21,629 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 09:56:21,629 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:56:21,667 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 09:56:21,669 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 09:56:21,670 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9] total 20 [2018-09-18 09:56:21,670 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 09:56:21,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-18 09:56:21,671 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-18 09:56:21,672 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2018-09-18 09:56:21,672 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 13 states. [2018-09-18 09:56:22,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:56:22,006 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2018-09-18 09:56:22,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-18 09:56:22,007 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2018-09-18 09:56:22,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:56:22,008 INFO L225 Difference]: With dead ends: 28 [2018-09-18 09:56:22,009 INFO L226 Difference]: Without dead ends: 22 [2018-09-18 09:56:22,010 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 45 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2018-09-18 09:56:22,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-09-18 09:56:22,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-09-18 09:56:22,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-09-18 09:56:22,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-09-18 09:56:22,015 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 15 [2018-09-18 09:56:22,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:56:22,015 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-09-18 09:56:22,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-18 09:56:22,015 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-09-18 09:56:22,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-18 09:56:22,016 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:56:22,016 INFO L376 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:56:22,017 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:56:22,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1462115102, now seen corresponding path program 2 times [2018-09-18 09:56:22,017 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:56:22,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:22,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:22,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:22,019 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:56:22,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:22,386 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-09-18 09:56:22,387 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:56:22,387 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 09:56:22,401 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-18 09:56:22,401 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-18 09:56:22,438 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-18 09:56:22,438 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 09:56:22,441 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:56:22,771 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:56:22,772 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:56:23,286 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:56:23,309 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:56:23,309 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 09:56:23,325 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-18 09:56:23,326 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-18 09:56:23,346 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-18 09:56:23,347 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 09:56:23,350 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:56:23,414 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:56:23,414 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:56:23,488 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:56:23,490 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 09:56:23,490 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13, 13, 13, 13] total 29 [2018-09-18 09:56:23,491 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 09:56:23,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-18 09:56:23,492 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-18 09:56:23,493 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=695, Unknown=0, NotChecked=0, Total=812 [2018-09-18 09:56:23,493 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 18 states. [2018-09-18 09:56:24,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:56:24,137 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2018-09-18 09:56:24,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-18 09:56:24,137 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 21 [2018-09-18 09:56:24,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:56:24,138 INFO L225 Difference]: With dead ends: 26 [2018-09-18 09:56:24,138 INFO L226 Difference]: Without dead ends: 0 [2018-09-18 09:56:24,140 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 64 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=223, Invalid=1259, Unknown=0, NotChecked=0, Total=1482 [2018-09-18 09:56:24,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-18 09:56:24,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-18 09:56:24,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-18 09:56:24,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-18 09:56:24,141 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-09-18 09:56:24,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:56:24,142 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-18 09:56:24,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-18 09:56:24,142 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-18 09:56:24,142 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-18 09:56:24,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-18 09:56:24,275 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-18 09:56:24,275 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-18 09:56:24,275 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-18 09:56:24,275 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-18 09:56:24,275 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-18 09:56:24,275 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-18 09:56:24,276 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 11 18) the Hoare annotation is: true [2018-09-18 09:56:24,276 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 11 18) no Hoare annotation was computed. [2018-09-18 09:56:24,276 INFO L426 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-09-18 09:56:24,276 INFO L426 ceAbstractionStarter]: For program point L14-1(lines 14 16) no Hoare annotation was computed. [2018-09-18 09:56:24,276 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 11 18) no Hoare annotation was computed. [2018-09-18 09:56:24,276 INFO L426 ceAbstractionStarter]: For program point L14-3(lines 14 16) no Hoare annotation was computed. [2018-09-18 09:56:24,276 INFO L422 ceAbstractionStarter]: At program point L14-4(lines 14 16) the Hoare annotation is: (or (let ((.cse1 (* 2 main_~i~0)) (.cse0 (+ main_~sn~0 2))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (< main_~sn~0 (+ (* 2 main_~n~0) 1)))) (and (= main_~i~0 1) (= main_~sn~0 0))) [2018-09-18 09:56:24,276 INFO L422 ceAbstractionStarter]: At program point L14-5(lines 14 16) the Hoare annotation is: (or (let ((.cse0 (* 2 main_~n~0))) (and (<= .cse0 main_~sn~0) (< main_~sn~0 (+ .cse0 1)))) (= main_~sn~0 0)) [2018-09-18 09:56:24,277 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2018-09-18 09:56:24,277 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2018-09-18 09:56:24,277 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-09-18 09:56:24,277 INFO L426 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-09-18 09:56:24,277 INFO L426 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-09-18 09:56:24,277 INFO L426 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2018-09-18 09:56:24,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 09:56:24 BoogieIcfgContainer [2018-09-18 09:56:24,289 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 09:56:24,290 INFO L168 Benchmark]: Toolchain (without parser) took 6300.14 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 692.1 MB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -429.5 MB). Peak memory consumption was 262.5 MB. Max. memory is 7.1 GB. [2018-09-18 09:56:24,292 INFO L168 Benchmark]: CDTParser took 0.19 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 09:56:24,292 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.16 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 09:56:24,293 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.48 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 09:56:24,294 INFO L168 Benchmark]: Boogie Preprocessor took 20.53 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 09:56:24,294 INFO L168 Benchmark]: RCFGBuilder took 356.73 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 692.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -752.1 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-09-18 09:56:24,296 INFO L168 Benchmark]: TraceAbstraction took 5586.45 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 312.0 MB). Peak memory consumption was 312.0 MB. Max. memory is 7.1 GB. [2018-09-18 09:56:24,300 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 307.16 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 22.48 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 20.53 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 356.73 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 692.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -752.1 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5586.45 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 312.0 MB). Peak memory consumption was 312.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: ((sn + 2 <= 2 * i && 2 * i <= sn + 2) && sn < 2 * n + 1) || (i == 1 && sn == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. SAFE Result, 5.4s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 55 SDtfs, 12 SDslu, 202 SDs, 0 SdLazy, 179 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 183 GetRequests, 113 SyntacticMatches, 8 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 12 PreInvPairs, 21 NumberOfFragments, 52 HoareAnnotationTreeSize, 12 FomulaSimplifications, 61 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 100 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 191 ConstructedInterpolants, 24 QuantifiedInterpolants, 28889 SizeOfPredicates, 16 NumberOfNonLiveVariables, 172 ConjunctsInSsa, 76 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 7/85 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/sum01_true-unreach-call_true-termination.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_09-56-24-315.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sum01_true-unreach-call_true-termination.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_09-56-24-315.csv Received shutdown request...