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-acceleration/diamond_true-unreach-call2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 09:56:38,300 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 09:56:38,302 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 09:56:38,314 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 09:56:38,315 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 09:56:38,316 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 09:56:38,317 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 09:56:38,320 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 09:56:38,328 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 09:56:38,330 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 09:56:38,330 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 09:56:38,331 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 09:56:38,336 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 09:56:38,337 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 09:56:38,338 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 09:56:38,341 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 09:56:38,342 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 09:56:38,346 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 09:56:38,351 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 09:56:38,353 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 09:56:38,356 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 09:56:38,357 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 09:56:38,362 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 09:56:38,363 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 09:56:38,363 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 09:56:38,364 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 09:56:38,366 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 09:56:38,367 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 09:56:38,368 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 09:56:38,370 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 09:56:38,370 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 09:56:38,371 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 09:56:38,371 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 09:56:38,371 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 09:56:38,374 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 09:56:38,374 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 09:56:38,375 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 09:56:38,403 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 09:56:38,403 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 09:56:38,405 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 09:56:38,405 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 09:56:38,405 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 09:56:38,405 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 09:56:38,406 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 09:56:38,406 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 09:56:38,406 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 09:56:38,406 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 09:56:38,406 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 09:56:38,407 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 09:56:38,408 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 09:56:38,408 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 09:56:38,408 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 09:56:38,408 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 09:56:38,410 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 09:56:38,410 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 09:56:38,410 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 09:56:38,411 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 09:56:38,411 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 09:56:38,411 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 09:56:38,411 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 09:56:38,412 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 09:56:38,412 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 09:56:38,412 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 09:56:38,412 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 09:56:38,413 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 09:56:38,413 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 09:56:38,413 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 09:56:38,413 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 09:56:38,413 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 09:56:38,413 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 09:56:38,414 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 09:56:38,487 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 09:56:38,503 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 09:56:38,510 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 09:56:38,512 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 09:56:38,512 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 09:56:38,513 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/diamond_true-unreach-call2.i [2018-09-18 09:56:38,860 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2ca3d5a7/f5122e4bd5ae4daaa4242a7e12caeda4/FLAG45ca00e83 [2018-09-18 09:56:39,018 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 09:56:39,018 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/diamond_true-unreach-call2.i [2018-09-18 09:56:39,024 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2ca3d5a7/f5122e4bd5ae4daaa4242a7e12caeda4/FLAG45ca00e83 [2018-09-18 09:56:39,039 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2ca3d5a7/f5122e4bd5ae4daaa4242a7e12caeda4 [2018-09-18 09:56:39,049 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 09:56:39,052 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 09:56:39,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 09:56:39,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 09:56:39,060 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 09:56:39,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 09:56:39" (1/1) ... [2018-09-18 09:56:39,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@757a175d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:39, skipping insertion in model container [2018-09-18 09:56:39,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 09:56:39" (1/1) ... [2018-09-18 09:56:39,076 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 09:56:39,313 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 09:56:39,331 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 09:56:39,343 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 09:56:39,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:39 WrapperNode [2018-09-18 09:56:39,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 09:56:39,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 09:56:39,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 09:56:39,369 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 09:56:39,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:39" (1/1) ... [2018-09-18 09:56:39,389 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:39" (1/1) ... [2018-09-18 09:56:39,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 09:56:39,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 09:56:39,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 09:56:39,397 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 09:56:39,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:39" (1/1) ... [2018-09-18 09:56:39,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:39" (1/1) ... [2018-09-18 09:56:39,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:39" (1/1) ... [2018-09-18 09:56:39,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:39" (1/1) ... [2018-09-18 09:56:39,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:39" (1/1) ... [2018-09-18 09:56:39,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:39" (1/1) ... [2018-09-18 09:56:39,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:39" (1/1) ... [2018-09-18 09:56:39,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 09:56:39,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 09:56:39,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 09:56:39,446 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 09:56:39,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:39" (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 09:56:39,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 09:56:39,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 09:56:39,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 09:56:39,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 09:56:39,530 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 09:56:39,530 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 09:56:39,530 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-18 09:56:39,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-18 09:56:40,118 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 09:56:40,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 09:56:40 BoogieIcfgContainer [2018-09-18 09:56:40,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 09:56:40,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 09:56:40,120 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 09:56:40,123 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 09:56:40,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 09:56:39" (1/3) ... [2018-09-18 09:56:40,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d8a6a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 09:56:40, skipping insertion in model container [2018-09-18 09:56:40,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:39" (2/3) ... [2018-09-18 09:56:40,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d8a6a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 09:56:40, skipping insertion in model container [2018-09-18 09:56:40,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 09:56:40" (3/3) ... [2018-09-18 09:56:40,126 INFO L112 eAbstractionObserver]: Analyzing ICFG diamond_true-unreach-call2.i [2018-09-18 09:56:40,137 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 09:56:40,145 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 09:56:40,195 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 09:56:40,195 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 09:56:40,196 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 09:56:40,196 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 09:56:40,196 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 09:56:40,196 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 09:56:40,196 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 09:56:40,196 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 09:56:40,196 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 09:56:40,213 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-09-18 09:56:40,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-18 09:56:40,219 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:56:40,220 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:56:40,222 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:56:40,227 INFO L82 PathProgramCache]: Analyzing trace with hash 46027330, now seen corresponding path program 1 times [2018-09-18 09:56:40,231 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:56:40,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:40,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:40,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:40,284 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:56:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:40,356 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 09:56:40,359 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 09:56:40,359 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-18 09:56:40,359 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 09:56:40,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-18 09:56:40,379 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-18 09:56:40,380 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-18 09:56:40,383 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2018-09-18 09:56:40,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:56:40,405 INFO L93 Difference]: Finished difference Result 39 states and 52 transitions. [2018-09-18 09:56:40,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-18 09:56:40,406 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-09-18 09:56:40,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:56:40,416 INFO L225 Difference]: With dead ends: 39 [2018-09-18 09:56:40,416 INFO L226 Difference]: Without dead ends: 22 [2018-09-18 09:56:40,420 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 09:56:40,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-09-18 09:56:40,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-09-18 09:56:40,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-09-18 09:56:40,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 32 transitions. [2018-09-18 09:56:40,462 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 32 transitions. Word has length 10 [2018-09-18 09:56:40,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:56:40,462 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 32 transitions. [2018-09-18 09:56:40,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-18 09:56:40,463 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2018-09-18 09:56:40,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-18 09:56:40,464 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:56:40,465 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:56:40,465 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:56:40,465 INFO L82 PathProgramCache]: Analyzing trace with hash -596143276, now seen corresponding path program 1 times [2018-09-18 09:56:40,465 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:56:40,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:40,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:40,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:40,469 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:56:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:40,605 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 09:56:40,606 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 09:56:40,606 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 09:56:40,607 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 09:56:40,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 09:56:40,609 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 09:56:40,609 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 09:56:40,609 INFO L87 Difference]: Start difference. First operand 22 states and 32 transitions. Second operand 3 states. [2018-09-18 09:56:40,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:56:40,814 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2018-09-18 09:56:40,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 09:56:40,815 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-09-18 09:56:40,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:56:40,818 INFO L225 Difference]: With dead ends: 30 [2018-09-18 09:56:40,818 INFO L226 Difference]: Without dead ends: 25 [2018-09-18 09:56:40,819 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 09:56:40,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-09-18 09:56:40,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2018-09-18 09:56:40,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-09-18 09:56:40,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 34 transitions. [2018-09-18 09:56:40,825 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 34 transitions. Word has length 11 [2018-09-18 09:56:40,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:56:40,826 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 34 transitions. [2018-09-18 09:56:40,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 09:56:40,826 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2018-09-18 09:56:40,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-18 09:56:40,827 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:56:40,827 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:56:40,828 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:56:40,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1592807782, now seen corresponding path program 1 times [2018-09-18 09:56:40,828 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:56:40,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:40,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:40,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:40,830 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:56:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:42,982 WARN L178 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 27 DAG size of output: 12 [2018-09-18 09:56:42,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:56:42,988 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 09:56:42,989 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 09:56:42,989 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 09:56:42,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 09:56:42,990 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 09:56:42,990 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 09:56:42,990 INFO L87 Difference]: Start difference. First operand 24 states and 34 transitions. Second operand 3 states. [2018-09-18 09:56:43,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:56:43,227 INFO L93 Difference]: Finished difference Result 54 states and 85 transitions. [2018-09-18 09:56:43,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 09:56:43,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-09-18 09:56:43,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:56:43,230 INFO L225 Difference]: With dead ends: 54 [2018-09-18 09:56:43,230 INFO L226 Difference]: Without dead ends: 37 [2018-09-18 09:56:43,230 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 09:56:43,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-09-18 09:56:43,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2018-09-18 09:56:43,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-09-18 09:56:43,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2018-09-18 09:56:43,238 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 23 [2018-09-18 09:56:43,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:56:43,238 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2018-09-18 09:56:43,238 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 09:56:43,239 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2018-09-18 09:56:43,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-18 09:56:43,239 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:56:43,240 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:56:43,240 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:56:43,240 INFO L82 PathProgramCache]: Analyzing trace with hash 2001094936, now seen corresponding path program 1 times [2018-09-18 09:56:43,240 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:56:43,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:43,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:43,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:43,242 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:56:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:44,059 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 09:56:44,060 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:56:44,060 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 09:56:44,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:44,075 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 09:56:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:44,120 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:56:44,169 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 09:56:44,170 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:56:47,776 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 09:56:47,809 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:56:47,809 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 09:56:47,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:47,826 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 09:56:47,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:47,862 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:56:47,920 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 09:56:47,920 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:56:47,936 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 09:56:47,937 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 09:56:47,938 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13, 13, 13] total 24 [2018-09-18 09:56:47,938 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 09:56:47,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-18 09:56:47,939 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-18 09:56:47,940 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2018-09-18 09:56:47,941 INFO L87 Difference]: Start difference. First operand 36 states and 47 transitions. Second operand 13 states. [2018-09-18 09:56:48,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:56:48,423 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2018-09-18 09:56:48,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-18 09:56:48,424 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 23 [2018-09-18 09:56:48,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:56:48,425 INFO L225 Difference]: With dead ends: 54 [2018-09-18 09:56:48,425 INFO L226 Difference]: Without dead ends: 49 [2018-09-18 09:56:48,426 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 79 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2018-09-18 09:56:48,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-09-18 09:56:48,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2018-09-18 09:56:48,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-09-18 09:56:48,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 60 transitions. [2018-09-18 09:56:48,434 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 60 transitions. Word has length 23 [2018-09-18 09:56:48,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:56:48,435 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 60 transitions. [2018-09-18 09:56:48,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-18 09:56:48,435 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 60 transitions. [2018-09-18 09:56:48,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-18 09:56:48,436 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:56:48,436 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:56:48,436 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:56:48,437 INFO L82 PathProgramCache]: Analyzing trace with hash 980026582, now seen corresponding path program 1 times [2018-09-18 09:56:48,437 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:56:48,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:48,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:48,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:48,438 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:56:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:48,537 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:56:48,538 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 09:56:48,538 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 09:56:48,538 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 09:56:48,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 09:56:48,539 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 09:56:48,539 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 09:56:48,540 INFO L87 Difference]: Start difference. First operand 48 states and 60 transitions. Second operand 3 states. [2018-09-18 09:56:48,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:56:48,615 INFO L93 Difference]: Finished difference Result 66 states and 78 transitions. [2018-09-18 09:56:48,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 09:56:48,616 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-09-18 09:56:48,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:56:48,618 INFO L225 Difference]: With dead ends: 66 [2018-09-18 09:56:48,618 INFO L226 Difference]: Without dead ends: 49 [2018-09-18 09:56:48,619 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 09:56:48,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-09-18 09:56:48,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2018-09-18 09:56:48,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-09-18 09:56:48,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2018-09-18 09:56:48,627 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 23 [2018-09-18 09:56:48,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:56:48,627 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2018-09-18 09:56:48,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 09:56:48,627 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2018-09-18 09:56:48,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-18 09:56:48,628 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:56:48,628 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:56:48,629 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:56:48,629 INFO L82 PathProgramCache]: Analyzing trace with hash 314161752, now seen corresponding path program 1 times [2018-09-18 09:56:48,629 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:56:48,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:48,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:48,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:48,631 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:56:48,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:57,213 WARN L178 SmtUtils]: Spent 4.08 s on a formula simplification. DAG size of input: 59 DAG size of output: 20 [2018-09-18 09:56:59,255 WARN L979 $PredicateComparison]: unable to prove that (let ((.cse12 (div c_main_~y~0 2))) (let ((.cse0 (* 2 .cse12)) (.cse11 (* 4294967296 (div c_main_~y~0 4294967296)))) (let ((.cse3 (<= .cse11 c_main_~y~0)) (.cse10 (* (- 2) .cse12)) (.cse2 (= c_main_~y~0 .cse0))) (let ((.cse4 (not .cse2)) (.cse5 (< c_main_~y~0 .cse11)) (.cse9 (div (+ c_main_~y~0 .cse10 (- 2)) 4294967296)) (.cse8 (div (+ c_main_~y~0 .cse10) 4294967296)) (.cse7 (or .cse2 .cse3))) (and (let ((.cse1 (* 4294967296 .cse9)) (.cse6 (* 4294967296 .cse8))) (or (and (or (< (+ .cse0 .cse1 2) c_main_~y~0) .cse2 .cse3) (or (and .cse4 .cse5) (< (+ .cse0 .cse6) c_main_~y~0))) (and (<= (+ .cse0 .cse1 3) c_main_~y~0) .cse4 .cse5) (and .cse7 (<= (+ .cse0 .cse6 1) c_main_~y~0)))) (<= c_main_~x~0 1) (<= 1 c_main_~x~0) (or (and (<= c_main_~y~0 (+ .cse0 3)) .cse4 .cse5) (and (<= c_main_~y~0 (+ .cse0 1)) .cse7)) (or (and .cse4 .cse5 (<= 0 .cse9)) (and (<= 0 .cse8) .cse7))))))) is different from false [2018-09-18 09:57:17,533 WARN L178 SmtUtils]: Spent 12.15 s on a formula simplification. DAG size of input: 54 DAG size of output: 18 [2018-09-18 09:57:19,564 WARN L979 $PredicateComparison]: unable to prove that (let ((.cse13 (div c_main_~y~0 2))) (let ((.cse0 (* 2 .cse13)) (.cse12 (* 4294967296 (div c_main_~y~0 4294967296)))) (let ((.cse3 (<= .cse12 c_main_~y~0)) (.cse11 (* (- 2) .cse13)) (.cse2 (= c_main_~y~0 .cse0))) (let ((.cse10 (+ c_main_~x~0 1)) (.cse4 (not .cse2)) (.cse5 (< c_main_~y~0 .cse12)) (.cse9 (div (+ c_main_~y~0 .cse11 (- 2)) 4294967296)) (.cse8 (div (+ c_main_~y~0 .cse11) 4294967296)) (.cse7 (or .cse2 .cse3))) (and (let ((.cse1 (* 4294967296 .cse9)) (.cse6 (* 4294967296 .cse8))) (or (and (or (< (+ .cse0 .cse1 2) c_main_~y~0) .cse2 .cse3) (or (and .cse4 .cse5) (< (+ .cse0 .cse6) c_main_~y~0))) (and (<= (+ .cse0 .cse1 3) c_main_~y~0) .cse4 .cse5) (and .cse7 (<= (+ .cse0 .cse6 1) c_main_~y~0)))) (<= .cse10 0) (or (and (<= c_main_~y~0 (+ .cse0 3)) .cse4 .cse5) (and (<= c_main_~y~0 (+ .cse0 1)) .cse7)) (<= 0 .cse10) (or (and .cse4 .cse5 (<= 0 .cse9)) (and (<= 0 .cse8) .cse7))))))) is different from false [2018-09-18 09:57:27,655 WARN L178 SmtUtils]: Spent 4.05 s on a formula simplification. DAG size of input: 56 DAG size of output: 20 [2018-09-18 09:57:29,718 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 09:57:29,718 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:57:29,719 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 09:57:29,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:57:29,736 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 09:57:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:57:29,754 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:57:30,160 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 09:57:30,160 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:57:30,399 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 09:57:30,430 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:57:30,430 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 09:57:30,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:57:30,453 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 09:57:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:57:30,493 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:57:30,881 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 09:57:30,882 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:57:31,144 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 09:57:31,149 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 09:57:31,149 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 6, 10, 7] total 19 [2018-09-18 09:57:31,149 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 09:57:31,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-18 09:57:31,150 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-18 09:57:31,155 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=218, Unknown=9, NotChecked=62, Total=342 [2018-09-18 09:57:31,156 INFO L87 Difference]: Start difference. First operand 48 states and 50 transitions. Second operand 14 states. [2018-09-18 09:57:33,451 WARN L979 $PredicateComparison]: unable to prove that (let ((.cse12 (div c_main_~y~0 2))) (let ((.cse0 (* 2 .cse12)) (.cse11 (* 4294967296 (div c_main_~y~0 4294967296)))) (let ((.cse3 (<= .cse11 c_main_~y~0)) (.cse10 (* (- 2) .cse12)) (.cse2 (= c_main_~y~0 .cse0))) (let ((.cse4 (not .cse2)) (.cse5 (< c_main_~y~0 .cse11)) (.cse9 (div (+ c_main_~y~0 .cse10 (- 2)) 4294967296)) (.cse8 (div (+ c_main_~y~0 .cse10) 4294967296)) (.cse7 (or .cse2 .cse3))) (and (let ((.cse1 (* 4294967296 .cse9)) (.cse6 (* 4294967296 .cse8))) (or (and (or (< (+ .cse0 .cse1 2) c_main_~y~0) .cse2 .cse3) (or (and .cse4 .cse5) (< (+ .cse0 .cse6) c_main_~y~0))) (and (<= (+ .cse0 .cse1 3) c_main_~y~0) .cse4 .cse5) (and .cse7 (<= (+ .cse0 .cse6 1) c_main_~y~0)))) (<= c_main_~x~0 1) (<= 1 c_main_~x~0) (or (and (<= c_main_~y~0 (+ .cse0 3)) .cse4 .cse5) (and (<= c_main_~y~0 (+ .cse0 1)) .cse7)) (not (= (mod c_main_~y~0 2) 0)) (or (and .cse4 .cse5 (<= 0 .cse9)) (and (<= 0 .cse8) .cse7))))))) is different from false [2018-09-18 09:57:39,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:57:39,578 INFO L93 Difference]: Finished difference Result 67 states and 69 transitions. [2018-09-18 09:57:39,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-18 09:57:39,579 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 23 [2018-09-18 09:57:39,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:57:39,580 INFO L225 Difference]: With dead ends: 67 [2018-09-18 09:57:39,580 INFO L226 Difference]: Without dead ends: 36 [2018-09-18 09:57:39,581 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 71 SyntacticMatches, 19 SemanticMatches, 19 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 49.8s TimeCoverageRelationStatistics Valid=61, Invalid=247, Unknown=10, NotChecked=102, Total=420 [2018-09-18 09:57:39,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-09-18 09:57:39,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-09-18 09:57:39,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-09-18 09:57:39,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2018-09-18 09:57:39,589 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 23 [2018-09-18 09:57:39,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:57:39,589 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2018-09-18 09:57:39,589 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-18 09:57:39,589 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2018-09-18 09:57:39,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-18 09:57:39,590 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:57:39,591 INFO L376 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:57:39,591 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:57:39,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1929479972, now seen corresponding path program 2 times [2018-09-18 09:57:39,591 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:57:39,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:57:39,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:57:39,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:57:39,593 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:57:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:57:40,179 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:40,179 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:57:40,179 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 09:57:40,197 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-18 09:57:40,198 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-18 09:57:40,243 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-18 09:57:40,243 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 09:57:40,246 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:57:40,287 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:40,287 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:57:52,852 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:52,873 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:57:52,873 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 09:57:52,893 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-18 09:57:52,894 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-18 09:57:52,945 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-18 09:57:52,945 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 09:57:52,950 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:57:52,972 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:52,972 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:57:52,997 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:53,000 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 09:57:53,000 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23, 23, 23] total 44 [2018-09-18 09:57:53,000 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 09:57:53,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-09-18 09:57:53,001 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-09-18 09:57:53,002 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=526, Invalid=1366, Unknown=0, NotChecked=0, Total=1892 [2018-09-18 09:57:53,002 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 23 states. [2018-09-18 09:57:53,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:57:53,695 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2018-09-18 09:57:53,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-18 09:57:53,696 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 35 [2018-09-18 09:57:53,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:57:53,697 INFO L225 Difference]: With dead ends: 54 [2018-09-18 09:57:53,698 INFO L226 Difference]: Without dead ends: 49 [2018-09-18 09:57:53,699 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 117 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=526, Invalid=1366, Unknown=0, NotChecked=0, Total=1892 [2018-09-18 09:57:53,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-09-18 09:57:53,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2018-09-18 09:57:53,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-09-18 09:57:53,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2018-09-18 09:57:53,704 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 35 [2018-09-18 09:57:53,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:57:53,705 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2018-09-18 09:57:53,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-09-18 09:57:53,705 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2018-09-18 09:57:53,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-09-18 09:57:53,706 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:57:53,706 INFO L376 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:57:53,707 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:57:53,707 INFO L82 PathProgramCache]: Analyzing trace with hash 2033787552, now seen corresponding path program 3 times [2018-09-18 09:57:53,707 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:57:53,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:57:53,708 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-18 09:57:53,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:57:53,708 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:57:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:57:54,751 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:54,752 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:57:54,752 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 09:57:54,760 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-18 09:57:54,760 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-09-18 09:57:54,843 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-09-18 09:57:54,844 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 09:57:54,849 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:57:54,926 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:54,926 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:58:13,606 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:58:13,626 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:58:13,626 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 09:58:13,641 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-18 09:58:13,642 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-09-18 09:58:13,727 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-09-18 09:58:13,727 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 09:58:13,733 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:58:13,773 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:58:13,774 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:58:13,799 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:58:13,801 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 09:58:13,801 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33, 33, 33] total 64 [2018-09-18 09:58:13,801 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 09:58:13,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-09-18 09:58:13,802 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-09-18 09:58:13,805 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1020, Invalid=3011, Unknown=1, NotChecked=0, Total=4032 [2018-09-18 09:58:13,805 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 33 states. [2018-09-18 09:58:14,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:58:14,735 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2018-09-18 09:58:14,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-09-18 09:58:14,737 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 47 [2018-09-18 09:58:14,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:58:14,738 INFO L225 Difference]: With dead ends: 66 [2018-09-18 09:58:14,738 INFO L226 Difference]: Without dead ends: 61 [2018-09-18 09:58:14,740 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 155 SyntacticMatches, 3 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 19.6s TimeCoverageRelationStatistics Valid=1020, Invalid=3011, Unknown=1, NotChecked=0, Total=4032 [2018-09-18 09:58:14,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-09-18 09:58:14,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2018-09-18 09:58:14,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-09-18 09:58:14,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2018-09-18 09:58:14,746 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 47 [2018-09-18 09:58:14,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:58:14,746 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2018-09-18 09:58:14,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-09-18 09:58:14,746 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2018-09-18 09:58:14,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-09-18 09:58:14,748 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:58:14,748 INFO L376 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:58:14,748 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:58:14,749 INFO L82 PathProgramCache]: Analyzing trace with hash -99662236, now seen corresponding path program 4 times [2018-09-18 09:58:14,749 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:58:14,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:58:14,750 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-18 09:58:14,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:58:14,750 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:58:14,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:58:16,148 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:58:16,149 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:58:16,149 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 09:58:16,158 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-18 09:58:16,159 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-09-18 09:58:16,204 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-18 09:58:16,205 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 09:58:16,210 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:58:16,288 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:58:16,288 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:58:44,288 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:58:44,308 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:58:44,308 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 09:58:44,325 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-18 09:58:44,325 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-09-18 09:58:44,410 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-18 09:58:44,410 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 09:58:44,417 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:58:44,472 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:58:44,472 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:58:44,510 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:58:44,512 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 09:58:44,512 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43, 43, 43, 43] total 84 [2018-09-18 09:58:44,512 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 09:58:44,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-09-18 09:58:44,514 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-09-18 09:58:44,516 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1350, Invalid=5620, Unknown=2, NotChecked=0, Total=6972 [2018-09-18 09:58:44,516 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand 43 states. [2018-09-18 09:58:46,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:58:46,439 INFO L93 Difference]: Finished difference Result 78 states and 78 transitions. [2018-09-18 09:58:46,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-09-18 09:58:46,440 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 59 [2018-09-18 09:58:46,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:58:46,441 INFO L225 Difference]: With dead ends: 78 [2018-09-18 09:58:46,441 INFO L226 Difference]: Without dead ends: 73 [2018-09-18 09:58:46,444 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 193 SyntacticMatches, 3 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 29.3s TimeCoverageRelationStatistics Valid=1350, Invalid=5620, Unknown=2, NotChecked=0, Total=6972 [2018-09-18 09:58:46,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-09-18 09:58:46,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 72. [2018-09-18 09:58:46,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-09-18 09:58:46,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 72 transitions. [2018-09-18 09:58:46,450 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 72 transitions. Word has length 59 [2018-09-18 09:58:46,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:58:46,451 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 72 transitions. [2018-09-18 09:58:46,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-09-18 09:58:46,451 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 72 transitions. [2018-09-18 09:58:46,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-09-18 09:58:46,452 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:58:46,452 INFO L376 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:58:46,452 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:58:46,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1880745000, now seen corresponding path program 5 times [2018-09-18 09:58:46,453 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:58:46,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:58:46,453 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-18 09:58:46,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:58:46,454 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:58:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:58:46,995 WARN L178 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 18 [2018-09-18 09:58:49,044 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 40 DAG size of output: 19 [2018-09-18 09:58:51,224 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 09:58:53,387 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 09:58:55,465 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 09:58:59,538 WARN L178 SmtUtils]: Spent 4.05 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 09:59:01,611 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 09:59:03,756 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 09:59:07,840 WARN L178 SmtUtils]: Spent 4.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 09:59:11,930 WARN L178 SmtUtils]: Spent 4.05 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 09:59:16,050 WARN L178 SmtUtils]: Spent 4.06 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 09:59:18,285 WARN L178 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 09:59:20,377 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 09:59:24,478 WARN L178 SmtUtils]: Spent 4.05 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 09:59:26,679 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 09:59:28,781 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 09:59:30,884 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 09:59:35,324 WARN L178 SmtUtils]: Spent 4.05 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 09:59:39,451 WARN L178 SmtUtils]: Spent 4.05 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 09:59:41,687 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 09:59:43,803 WARN L178 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 09:59:45,930 WARN L178 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 09:59:48,094 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 09:59:52,237 WARN L178 SmtUtils]: Spent 4.05 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 09:59:54,522 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 09:59:57,247 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 10:00:01,399 WARN L178 SmtUtils]: Spent 4.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 10:00:03,539 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 10:00:05,683 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 10:00:09,858 WARN L178 SmtUtils]: Spent 4.06 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 10:00:14,210 WARN L178 SmtUtils]: Spent 4.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 10:00:16,365 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 10:00:18,527 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 10:00:20,683 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 10:00:22,843 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 10:00:25,089 WARN L178 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 10:00:29,294 WARN L178 SmtUtils]: Spent 4.05 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 10:00:31,458 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 10:00:33,626 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-09-18 10:00:33,936 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:00:33,937 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:00:33,937 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 10:00:33,948 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-09-18 10:00:33,949 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder INSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-18 10:00:34,212 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-09-18 10:00:34,213 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 10:00:34,217 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:00:35,238 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:00:35,238 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:00:37,189 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-09-18 10:00:37,211 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:00:37,211 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 10:00:37,226 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-09-18 10:00:37,226 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder INSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-18 10:00:37,402 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-09-18 10:00:37,402 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 10:00:37,452 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:00:37,816 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:00:37,816 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:00:38,909 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 38 proven. 26 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2018-09-18 10:00:38,911 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 10:00:38,911 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55, 6, 55, 7] total 69 [2018-09-18 10:00:38,911 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 10:00:38,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-09-18 10:00:38,914 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-09-18 10:00:38,915 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=4374, Unknown=0, NotChecked=0, Total=4692 [2018-09-18 10:00:38,915 INFO L87 Difference]: Start difference. First operand 72 states and 72 transitions. Second operand 64 states. [2018-09-18 10:00:42,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:00:42,369 INFO L93 Difference]: Finished difference Result 87 states and 88 transitions. [2018-09-18 10:00:42,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2018-09-18 10:00:42,369 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 71 [2018-09-18 10:00:42,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:00:42,370 INFO L225 Difference]: With dead ends: 87 [2018-09-18 10:00:42,370 INFO L226 Difference]: Without dead ends: 0 [2018-09-18 10:00:42,373 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 246 SyntacticMatches, 25 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 111.2s TimeCoverageRelationStatistics Valid=324, Invalid=4506, Unknown=0, NotChecked=0, Total=4830 [2018-09-18 10:00:42,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-18 10:00:42,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-18 10:00:42,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-18 10:00:42,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-18 10:00:42,373 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 71 [2018-09-18 10:00:42,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:00:42,373 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-18 10:00:42,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-09-18 10:00:42,374 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-18 10:00:42,374 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-18 10:00:42,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-18 10:00:42,579 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2018-09-18 10:00:42,603 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-18 10:00:42,603 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-18 10:00:42,603 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-18 10:00:42,603 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-18 10:00:42,604 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-18 10:00:42,604 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-18 10:00:42,604 INFO L422 ceAbstractionStarter]: At program point L31-1(lines 12 33) the Hoare annotation is: (let ((.cse5 (div main_~y~0 2))) (let ((.cse3 (* 2 .cse5)) (.cse4 (* 4294967296 (div (+ main_~y~0 (* (- 2) .cse5)) 4294967296)))) (let ((.cse1 (+ .cse3 main_~x~0 .cse4)) (.cse0 (= (+ .cse3 .cse4) main_~y~0))) (or (and (<= main_~x~0 0) (<= 0 main_~x~0)) (and (<= 20 main_~x~0) .cse0 (<= main_~x~0 20)) (and (<= main_~x~0 60) (<= 60 main_~x~0) .cse0) (and (<= .cse1 (+ main_~y~0 100)) .cse0 (<= 100 main_~x~0)) (let ((.cse2 (+ main_~x~0 5))) (and (<= 0 .cse2) (<= .cse2 0) (<= (+ .cse3 .cse4 1) main_~y~0))) (and (<= .cse1 (+ main_~y~0 40)) .cse0 (<= 40 main_~x~0)) (and (<= 80 main_~x~0) (<= main_~x~0 80) .cse0))))) [2018-09-18 10:00:42,604 INFO L426 ceAbstractionStarter]: For program point L27-1(lines 12 33) no Hoare annotation was computed. [2018-09-18 10:00:42,604 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 9 35) no Hoare annotation was computed. [2018-09-18 10:00:42,604 INFO L426 ceAbstractionStarter]: For program point L23-1(lines 12 33) no Hoare annotation was computed. [2018-09-18 10:00:42,604 INFO L426 ceAbstractionStarter]: For program point L19-1(lines 12 33) no Hoare annotation was computed. [2018-09-18 10:00:42,604 INFO L426 ceAbstractionStarter]: For program point L15-1(lines 12 33) no Hoare annotation was computed. [2018-09-18 10:00:42,604 INFO L426 ceAbstractionStarter]: For program point L12-1(lines 12 33) no Hoare annotation was computed. [2018-09-18 10:00:42,605 INFO L422 ceAbstractionStarter]: At program point L12-3(lines 12 33) the Hoare annotation is: (let ((.cse3 (div main_~y~0 2))) (let ((.cse0 (* 2 .cse3)) (.cse1 (* 4294967296 (div (+ main_~y~0 (* (- 2) .cse3)) 4294967296)))) (or (and (<= main_~y~0 (+ .cse0 .cse1)) (<= (+ .cse0 main_~x~0 .cse1) (+ main_~y~0 100)) (<= 100 main_~x~0)) (let ((.cse2 (+ main_~x~0 5))) (and (<= 0 .cse2) (<= .cse2 0) (<= (+ .cse0 .cse1 1) main_~y~0)))))) [2018-09-18 10:00:42,605 INFO L426 ceAbstractionStarter]: For program point L29-1(lines 12 33) no Hoare annotation was computed. [2018-09-18 10:00:42,605 INFO L426 ceAbstractionStarter]: For program point L25-1(lines 12 33) no Hoare annotation was computed. [2018-09-18 10:00:42,605 INFO L426 ceAbstractionStarter]: For program point L21-1(lines 12 33) no Hoare annotation was computed. [2018-09-18 10:00:42,605 INFO L426 ceAbstractionStarter]: For program point L17-1(lines 12 33) no Hoare annotation was computed. [2018-09-18 10:00:42,605 INFO L426 ceAbstractionStarter]: For program point L13(lines 13 14) no Hoare annotation was computed. [2018-09-18 10:00:42,605 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 9 35) no Hoare annotation was computed. [2018-09-18 10:00:42,605 INFO L426 ceAbstractionStarter]: For program point L13-2(lines 12 33) no Hoare annotation was computed. [2018-09-18 10:00:42,605 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 9 35) the Hoare annotation is: true [2018-09-18 10:00:42,605 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-18 10:00:42,605 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-18 10:00:42,606 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-18 10:00:42,606 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-18 10:00:42,606 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-18 10:00:42,606 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-18 10:00:42,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 10:00:42 BoogieIcfgContainer [2018-09-18 10:00:42,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 10:00:42,622 INFO L168 Benchmark]: Toolchain (without parser) took 243572.43 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 971.0 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -478.1 MB). Peak memory consumption was 492.9 MB. Max. memory is 7.1 GB. [2018-09-18 10:00:42,623 INFO L168 Benchmark]: CDTParser took 0.20 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 10:00:42,623 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.66 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 10:00:42,624 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.49 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 10:00:42,625 INFO L168 Benchmark]: Boogie Preprocessor took 48.09 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 10:00:42,625 INFO L168 Benchmark]: RCFGBuilder took 673.47 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 767.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -817.7 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-09-18 10:00:42,626 INFO L168 Benchmark]: TraceAbstraction took 242501.43 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 203.4 MB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 329.1 MB). Peak memory consumption was 532.5 MB. Max. memory is 7.1 GB. [2018-09-18 10:00:42,631 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 315.66 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 27.49 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 48.09 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 673.47 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 767.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -817.7 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 242501.43 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 203.4 MB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 329.1 MB). Peak memory consumption was 532.5 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: 12]: Loop Invariant Derived loop invariant: ((((((x <= 0 && 0 <= x) || ((20 <= x && 2 * (y / 2) + 4294967296 * ((y + -2 * (y / 2)) / 4294967296) == y) && x <= 20)) || ((x <= 60 && 60 <= x) && 2 * (y / 2) + 4294967296 * ((y + -2 * (y / 2)) / 4294967296) == y)) || ((2 * (y / 2) + x + 4294967296 * ((y + -2 * (y / 2)) / 4294967296) <= y + 100 && 2 * (y / 2) + 4294967296 * ((y + -2 * (y / 2)) / 4294967296) == y) && 100 <= x)) || ((0 <= x + 5 && x + 5 <= 0) && 2 * (y / 2) + 4294967296 * ((y + -2 * (y / 2)) / 4294967296) + 1 <= y)) || ((2 * (y / 2) + x + 4294967296 * ((y + -2 * (y / 2)) / 4294967296) <= y + 40 && 2 * (y / 2) + 4294967296 * ((y + -2 * (y / 2)) / 4294967296) == y) && 40 <= x)) || ((80 <= x && x <= 80) && 2 * (y / 2) + 4294967296 * ((y + -2 * (y / 2)) / 4294967296) == y) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 1 error locations. SAFE Result, 242.4s OverallTime, 10 OverallIterations, 6 TraceHistogramMax, 16.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 211 SDtfs, 27 SDslu, 2054 SDs, 0 SdLazy, 7787 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1224 GetRequests, 869 SyntacticMatches, 57 SemanticMatches, 298 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1418 ImplicationChecksByTransitivity, 229.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=9, 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, 10 MinimizatonAttempts, 7 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 18 PreInvPairs, 27 NumberOfFragments, 289 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 184 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 223.7s InterpolantComputationTime, 841 NumberOfCodeBlocks, 841 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 1323 ConstructedInterpolants, 24 QuantifiedInterpolants, 875619 SizeOfPredicates, 20 NumberOfNonLiveVariables, 1624 ConjunctsInSsa, 706 ConjunctsInUnsatCore, 34 InterpolantComputations, 4 PerfectInterpolantSequences, 188/1364 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/diamond_true-unreach-call2.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_10-00-42-647.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/diamond_true-unreach-call2.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_10-00-42-647.csv Received shutdown request...