java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/array_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 15:45:52,354 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 15:45:52,356 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 15:45:52,368 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 15:45:52,368 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 15:45:52,369 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 15:45:52,371 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 15:45:52,372 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 15:45:52,374 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 15:45:52,375 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 15:45:52,376 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 15:45:52,376 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 15:45:52,377 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 15:45:52,378 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 15:45:52,379 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 15:45:52,380 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 15:45:52,381 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 15:45:52,383 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 15:45:52,385 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 15:45:52,386 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 15:45:52,387 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 15:45:52,389 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 15:45:52,391 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 15:45:52,392 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 15:45:52,392 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 15:45:52,393 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 15:45:52,394 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 15:45:52,395 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 15:45:52,396 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 15:45:52,397 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 15:45:52,397 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 15:45:52,398 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-14 15:45:52,401 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 [2018-09-14 15:45:52,430 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 15:45:52,431 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 15:45:52,432 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 15:45:52,432 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 15:45:52,432 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 15:45:52,432 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 15:45:52,433 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 15:45:52,433 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 15:45:52,433 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 15:45:52,433 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 15:45:52,434 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 15:45:52,435 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 15:45:52,435 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 15:45:52,435 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 15:45:52,436 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 15:45:52,436 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 15:45:52,436 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 15:45:52,436 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 15:45:52,436 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 15:45:52,437 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 15:45:52,437 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 15:45:52,437 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 15:45:52,437 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 15:45:52,437 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 15:45:52,439 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 15:45:52,439 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 15:45:52,439 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 15:45:52,440 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 15:45:52,440 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 15:45:52,440 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 15:45:52,440 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 15:45:52,440 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 15:45:52,441 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 15:45:52,515 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 15:45:52,528 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 15:45:52,532 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 15:45:52,534 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 15:45:52,534 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 15:45:52,535 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/array_true-unreach-call_true-termination.i [2018-09-14 15:45:52,897 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77a16c381/b1329bd9212b4ad88a2585707c152234/FLAG249c43b1e [2018-09-14 15:45:53,067 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 15:45:53,068 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/array_true-unreach-call_true-termination.i [2018-09-14 15:45:53,074 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77a16c381/b1329bd9212b4ad88a2585707c152234/FLAG249c43b1e [2018-09-14 15:45:53,096 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77a16c381/b1329bd9212b4ad88a2585707c152234 [2018-09-14 15:45:53,110 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 15:45:53,114 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 15:45:53,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 15:45:53,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 15:45:53,125 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 15:45:53,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 03:45:53" (1/1) ... [2018-09-14 15:45:53,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@359f2bac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:45:53, skipping insertion in model container [2018-09-14 15:45:53,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 03:45:53" (1/1) ... [2018-09-14 15:45:53,143 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 15:45:53,327 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 15:45:53,345 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 15:45:53,351 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 15:45:53,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:45:53 WrapperNode [2018-09-14 15:45:53,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 15:45:53,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 15:45:53,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 15:45:53,366 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 15:45:53,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:45:53" (1/1) ... [2018-09-14 15:45:53,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:45:53" (1/1) ... [2018-09-14 15:45:53,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 15:45:53,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 15:45:53,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 15:45:53,392 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 15:45:53,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:45:53" (1/1) ... [2018-09-14 15:45:53,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:45:53" (1/1) ... [2018-09-14 15:45:53,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:45:53" (1/1) ... [2018-09-14 15:45:53,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:45:53" (1/1) ... [2018-09-14 15:45:53,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:45:53" (1/1) ... [2018-09-14 15:45:53,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:45:53" (1/1) ... [2018-09-14 15:45:53,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:45:53" (1/1) ... [2018-09-14 15:45:53,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 15:45:53,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 15:45:53,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 15:45:53,430 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 15:45:53,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:45:53" (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 [2018-09-14 15:45:53,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 15:45:53,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 15:45:53,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 15:45:53,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 15:45:53,494 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 15:45:53,494 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 15:45:53,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-14 15:45:53,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-14 15:45:53,808 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 15:45:53,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 03:45:53 BoogieIcfgContainer [2018-09-14 15:45:53,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 15:45:53,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 15:45:53,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 15:45:53,815 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 15:45:53,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 03:45:53" (1/3) ... [2018-09-14 15:45:53,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397c8627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 03:45:53, skipping insertion in model container [2018-09-14 15:45:53,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:45:53" (2/3) ... [2018-09-14 15:45:53,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397c8627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 03:45:53, skipping insertion in model container [2018-09-14 15:45:53,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 03:45:53" (3/3) ... [2018-09-14 15:45:53,820 INFO L112 eAbstractionObserver]: Analyzing ICFG array_true-unreach-call_true-termination.i [2018-09-14 15:45:53,835 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 15:45:53,844 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 15:45:53,910 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 15:45:53,911 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 15:45:53,911 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 15:45:53,911 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 15:45:53,911 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 15:45:53,911 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 15:45:53,912 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 15:45:53,912 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 15:45:53,912 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 15:45:53,933 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-09-14 15:45:53,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-14 15:45:53,939 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 15:45:53,941 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 15:45:53,942 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 15:45:53,951 INFO L82 PathProgramCache]: Analyzing trace with hash -147882559, now seen corresponding path program 1 times [2018-09-14 15:45:53,958 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 15:45:54,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 15:45:54,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 15:45:54,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 15:45:54,025 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 15:45:54,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 15:45:54,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 15:45:54,088 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 15:45:54,089 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-14 15:45:54,089 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 15:45:54,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-14 15:45:54,109 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-14 15:45:54,110 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-14 15:45:54,112 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2018-09-14 15:45:54,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 15:45:54,132 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2018-09-14 15:45:54,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-14 15:45:54,134 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-09-14 15:45:54,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 15:45:54,143 INFO L225 Difference]: With dead ends: 33 [2018-09-14 15:45:54,144 INFO L226 Difference]: Without dead ends: 14 [2018-09-14 15:45:54,148 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 [2018-09-14 15:45:54,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-09-14 15:45:54,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-09-14 15:45:54,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-14 15:45:54,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2018-09-14 15:45:54,185 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 10 [2018-09-14 15:45:54,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 15:45:54,186 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-09-14 15:45:54,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-14 15:45:54,187 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-09-14 15:45:54,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-14 15:45:54,187 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 15:45:54,188 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 15:45:54,188 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 15:45:54,188 INFO L82 PathProgramCache]: Analyzing trace with hash -718385346, now seen corresponding path program 1 times [2018-09-14 15:45:54,189 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 15:45:54,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 15:45:54,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 15:45:54,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 15:45:54,191 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 15:45:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 15:45:54,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 15:45:54,411 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 15:45:54,411 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 15:45:54,411 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 15:45:54,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 15:45:54,413 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 15:45:54,413 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 15:45:54,414 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 3 states. [2018-09-14 15:45:54,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 15:45:54,503 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2018-09-14 15:45:54,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 15:45:54,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-09-14 15:45:54,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 15:45:54,505 INFO L225 Difference]: With dead ends: 23 [2018-09-14 15:45:54,505 INFO L226 Difference]: Without dead ends: 18 [2018-09-14 15:45:54,506 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 15:45:54,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-09-14 15:45:54,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2018-09-14 15:45:54,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-09-14 15:45:54,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-09-14 15:45:54,512 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 11 [2018-09-14 15:45:54,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 15:45:54,513 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-09-14 15:45:54,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 15:45:54,513 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-09-14 15:45:54,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-14 15:45:54,513 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 15:45:54,514 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 15:45:54,514 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 15:45:54,514 INFO L82 PathProgramCache]: Analyzing trace with hash -308795833, now seen corresponding path program 1 times [2018-09-14 15:45:54,515 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 15:45:54,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 15:45:54,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 15:45:54,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 15:45:54,516 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 15:45:54,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 15:45:54,836 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 13 [2018-09-14 15:45:54,938 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 15:45:54,938 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 15:45:54,938 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 [2018-09-14 15:45:54,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 15:45:54,951 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 15:45:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 15:45:54,990 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 15:45:55,055 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-14 15:45:55,057 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-14 15:45:55,080 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-14 15:45:55,080 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:7 [2018-09-14 15:45:55,312 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 15:45:55,313 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 15:45:55,596 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2018-09-14 15:45:55,597 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-14 15:45:55,600 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-14 15:45:55,600 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-09-14 15:45:55,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 15:45:55,694 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 15:45:55,694 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 [2018-09-14 15:45:55,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 15:45:55,711 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 15:45:55,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 15:45:55,736 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 15:45:55,755 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-14 15:45:55,756 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-14 15:45:55,769 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-14 15:45:55,770 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:7 [2018-09-14 15:45:55,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 15:45:55,905 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 15:45:55,974 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2018-09-14 15:45:55,975 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-14 15:45:55,977 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-14 15:45:55,977 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-09-14 15:45:55,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 15:45:55,992 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 15:45:55,993 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7, 6, 7] total 13 [2018-09-14 15:45:55,993 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 15:45:55,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 15:45:55,993 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 15:45:55,994 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-09-14 15:45:55,995 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 9 states. [2018-09-14 15:45:56,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 15:45:56,380 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2018-09-14 15:45:56,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-14 15:45:56,381 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2018-09-14 15:45:56,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 15:45:56,382 INFO L225 Difference]: With dead ends: 29 [2018-09-14 15:45:56,383 INFO L226 Difference]: Without dead ends: 23 [2018-09-14 15:45:56,384 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 47 SyntacticMatches, 8 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-14 15:45:56,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-09-14 15:45:56,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2018-09-14 15:45:56,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-09-14 15:45:56,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-09-14 15:45:56,399 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 15 [2018-09-14 15:45:56,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 15:45:56,400 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-09-14 15:45:56,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-14 15:45:56,400 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-09-14 15:45:56,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-14 15:45:56,401 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 15:45:56,402 INFO L376 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 15:45:56,402 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 15:45:56,404 INFO L82 PathProgramCache]: Analyzing trace with hash 2143113424, now seen corresponding path program 2 times [2018-09-14 15:45:56,404 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 15:45:56,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 15:45:56,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 15:45:56,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 15:45:56,408 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 15:45:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 15:45:56,697 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 15:45:56,697 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 15:45:56,698 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 [2018-09-14 15:45:56,719 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-14 15:45:56,719 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-14 15:45:56,745 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-14 15:45:56,746 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-14 15:45:56,748 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 15:45:56,792 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 15:45:56,792 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 15:45:56,888 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 15:45:56,920 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 15:45:56,920 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 [2018-09-14 15:45:56,941 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-14 15:45:56,941 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-14 15:45:56,965 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-14 15:45:56,965 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-14 15:45:56,969 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 15:45:57,010 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-14 15:45:57,010 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-14 15:45:57,024 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-14 15:45:57,025 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2018-09-14 15:45:57,286 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-14 15:45:57,286 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 15:45:57,481 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-09-14 15:45:57,481 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-14 15:45:57,502 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-14 15:45:57,503 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:13 [2018-09-14 15:45:57,595 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [MP cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (5)] Exception during sending of exit command (exit): Broken pipe [2018-09-14 15:45:57,597 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-09-14 15:45:57,597 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 4, 4, 7] total 20 [2018-09-14 15:45:57,598 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 15:45:57,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-14 15:45:57,598 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-14 15:45:57,599 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2018-09-14 15:45:57,599 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 8 states. [2018-09-14 15:45:57,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 15:45:57,744 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2018-09-14 15:45:57,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 15:45:57,744 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2018-09-14 15:45:57,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 15:45:57,747 INFO L225 Difference]: With dead ends: 31 [2018-09-14 15:45:57,747 INFO L226 Difference]: Without dead ends: 26 [2018-09-14 15:45:57,748 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2018-09-14 15:45:57,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-09-14 15:45:57,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 20. [2018-09-14 15:45:57,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-09-14 15:45:57,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-09-14 15:45:57,754 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 19 [2018-09-14 15:45:57,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 15:45:57,754 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-09-14 15:45:57,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-14 15:45:57,754 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-09-14 15:45:57,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-14 15:45:57,755 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 15:45:57,755 INFO L376 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 15:45:57,756 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 15:45:57,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1333766798, now seen corresponding path program 1 times [2018-09-14 15:45:57,756 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 15:45:57,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 15:45:57,757 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-14 15:45:57,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 15:45:57,757 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 15:45:57,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 15:45:57,895 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 15:45:57,896 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 15:45:57,896 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 [2018-09-14 15:45:57,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 15:45:57,908 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 15:45:57,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 15:45:57,920 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 15:45:57,998 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 15:45:57,999 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 15:45:58,047 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 15:45:58,068 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 15:45:58,068 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 [2018-09-14 15:45:58,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 15:45:58,084 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 15:45:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 15:45:58,107 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 15:45:58,134 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-14 15:45:58,134 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-14 15:45:58,144 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-14 15:45:58,145 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2018-09-14 15:45:58,264 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-14 15:45:58,264 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 15:45:58,395 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2018-09-14 15:45:58,396 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-14 15:45:58,402 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-14 15:45:58,403 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:21, output treesize:13 [2018-09-14 15:45:58,466 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-14 15:45:58,467 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-09-14 15:45:58,468 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 4, 4, 7] total 20 [2018-09-14 15:45:58,468 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 15:45:58,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-14 15:45:58,468 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-14 15:45:58,469 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2018-09-14 15:45:58,469 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 8 states. [2018-09-14 15:45:58,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 15:45:58,556 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2018-09-14 15:45:58,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 15:45:58,556 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2018-09-14 15:45:58,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 15:45:58,557 INFO L225 Difference]: With dead ends: 23 [2018-09-14 15:45:58,557 INFO L226 Difference]: Without dead ends: 0 [2018-09-14 15:45:58,559 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2018-09-14 15:45:58,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-14 15:45:58,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-14 15:45:58,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-14 15:45:58,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-14 15:45:58,559 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-09-14 15:45:58,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 15:45:58,560 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-14 15:45:58,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-14 15:45:58,560 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-14 15:45:58,560 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-14 15:45:58,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-14 15:45:58,688 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-14 15:45:58,688 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-14 15:45:58,688 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-14 15:45:58,688 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-14 15:45:58,688 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-14 15:45:58,688 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-14 15:45:58,689 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 11 29) the Hoare annotation is: true [2018-09-14 15:45:58,689 INFO L426 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2018-09-14 15:45:58,689 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 11 29) no Hoare annotation was computed. [2018-09-14 15:45:58,689 INFO L426 ceAbstractionStarter]: For program point L22(lines 22 23) no Hoare annotation was computed. [2018-09-14 15:45:58,689 INFO L426 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2018-09-14 15:45:58,689 INFO L426 ceAbstractionStarter]: For program point L19-3(lines 19 24) no Hoare annotation was computed. [2018-09-14 15:45:58,690 INFO L422 ceAbstractionStarter]: At program point L19-4(lines 19 24) the Hoare annotation is: (or (and (<= 0 main_~j~0) (<= (+ main_~j~0 1) main_~SIZE~0) (<= main_~SIZE~0 1)) (and (= main_~SIZE~0 1) (exists ((main_~j~0 Int)) (and (<= 0 main_~j~0) (<= main_~j~0 0) (<= main_~menor~0 (select main_~array~0 (mod main_~j~0 4294967296))))))) [2018-09-14 15:45:58,690 INFO L422 ceAbstractionStarter]: At program point L19-5(lines 19 24) the Hoare annotation is: (exists ((main_~j~0 Int)) (and (<= 0 main_~j~0) (<= main_~j~0 0) (<= main_~menor~0 (select main_~array~0 (mod main_~j~0 4294967296))))) [2018-09-14 15:45:58,690 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 11 29) no Hoare annotation was computed. [2018-09-14 15:45:58,690 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-14 15:45:58,691 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-14 15:45:58,691 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-14 15:45:58,691 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-14 15:45:58,691 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-14 15:45:58,691 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-14 15:45:58,696 WARN L382 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2018-09-14 15:45:58,697 WARN L382 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2018-09-14 15:45:58,698 WARN L382 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2018-09-14 15:45:58,708 WARN L382 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2018-09-14 15:45:58,708 WARN L382 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2018-09-14 15:45:58,709 WARN L382 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2018-09-14 15:45:58,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 03:45:58 BoogieIcfgContainer [2018-09-14 15:45:58,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 15:45:58,713 INFO L168 Benchmark]: Toolchain (without parser) took 5602.00 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 720.9 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -482.3 MB). Peak memory consumption was 238.6 MB. Max. memory is 7.1 GB. [2018-09-14 15:45:58,714 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-09-14 15:45:58,715 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.96 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. [2018-09-14 15:45:58,716 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.67 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. [2018-09-14 15:45:58,716 INFO L168 Benchmark]: Boogie Preprocessor took 36.26 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. [2018-09-14 15:45:58,717 INFO L168 Benchmark]: RCFGBuilder took 380.69 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 720.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -765.6 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2018-09-14 15:45:58,718 INFO L168 Benchmark]: TraceAbstraction took 4900.37 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 272.7 MB). Peak memory consumption was 272.7 MB. Max. memory is 7.1 GB. [2018-09-14 15:45:58,722 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 248.96 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 25.67 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 36.26 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 380.69 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 720.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -765.6 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4900.37 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 272.7 MB). Peak memory consumption was 272.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] * 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: 19]: Loop Invariant [2018-09-14 15:45:58,731 WARN L382 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2018-09-14 15:45:58,732 WARN L382 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2018-09-14 15:45:58,732 WARN L382 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2018-09-14 15:45:58,733 WARN L382 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2018-09-14 15:45:58,733 WARN L382 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2018-09-14 15:45:58,733 WARN L382 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] Derived loop invariant: ((0 <= j && j + 1 <= SIZE) && SIZE <= 1) || (SIZE == 1 && (\exists main_~j~0 : int :: (0 <= main_~j~0 && main_~j~0 <= 0) && menor <= array[main_~j~0 % 4294967296])) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 4.7s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 62 SDtfs, 24 SDslu, 119 SDs, 0 SdLazy, 115 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 238 GetRequests, 171 SyntacticMatches, 12 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, 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, 5 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 12 PreInvPairs, 19 NumberOfFragments, 52 HoareAnnotationTreeSize, 12 FomulaSimplifications, 152 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 105 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 269 ConstructedInterpolants, 24 QuantifiedInterpolants, 21057 SizeOfPredicates, 33 NumberOfNonLiveVariables, 270 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 17 InterpolantComputations, 4 PerfectInterpolantSequences, 56/90 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/array_true-unreach-call_true-termination.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_15-45-58-739.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/array_true-unreach-call_true-termination.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_15-45-58-739.csv Received shutdown request...