java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -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-dd2f093 [2018-07-24 10:44:10,468 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 10:44:10,471 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 10:44:10,483 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 10:44:10,483 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 10:44:10,484 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 10:44:10,485 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 10:44:10,488 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 10:44:10,491 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 10:44:10,493 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 10:44:10,496 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 10:44:10,496 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 10:44:10,497 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 10:44:10,498 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 10:44:10,501 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 10:44:10,502 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 10:44:10,503 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 10:44:10,505 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 10:44:10,507 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 10:44:10,508 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 10:44:10,509 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 10:44:10,510 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 10:44:10,513 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 10:44:10,513 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 10:44:10,514 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 10:44:10,515 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 10:44:10,516 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 10:44:10,516 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 10:44:10,517 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 10:44:10,518 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 10:44:10,519 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 10:44:10,519 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 10:44:10,520 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 10:44:10,520 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 10:44:10,521 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 10:44:10,522 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 10:44:10,522 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 [2018-07-24 10:44:10,543 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 10:44:10,544 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 10:44:10,545 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 10:44:10,546 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 10:44:10,546 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 10:44:10,546 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 10:44:10,546 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 10:44:10,547 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 10:44:10,547 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 10:44:10,547 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 10:44:10,547 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 10:44:10,548 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 10:44:10,548 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 10:44:10,548 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 10:44:10,549 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 10:44:10,549 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 10:44:10,549 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 10:44:10,549 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 10:44:10,550 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 10:44:10,550 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 10:44:10,550 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 10:44:10,551 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 10:44:10,551 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 10:44:10,551 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 10:44:10,551 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 10:44:10,551 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 10:44:10,552 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 10:44:10,552 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 10:44:10,552 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 10:44:10,552 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 10:44:10,553 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 10:44:10,553 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 10:44:10,553 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 10:44:10,612 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 10:44:10,628 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 10:44:10,637 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 10:44:10,639 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 10:44:10,640 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 10:44:10,641 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/array_true-unreach-call_true-termination.i [2018-07-24 10:44:11,007 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b6dcc563/60f4d00e0b644032958731604531a84c/FLAG0f83744f1 [2018-07-24 10:44:11,134 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 10:44:11,134 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/array_true-unreach-call_true-termination.i [2018-07-24 10:44:11,141 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b6dcc563/60f4d00e0b644032958731604531a84c/FLAG0f83744f1 [2018-07-24 10:44:11,156 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b6dcc563/60f4d00e0b644032958731604531a84c [2018-07-24 10:44:11,168 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 10:44:11,170 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 10:44:11,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 10:44:11,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 10:44:11,178 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 10:44:11,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 10:44:11" (1/1) ... [2018-07-24 10:44:11,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e4f5660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:11, skipping insertion in model container [2018-07-24 10:44:11,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 10:44:11" (1/1) ... [2018-07-24 10:44:11,336 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 10:44:11,382 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 10:44:11,398 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 10:44:11,404 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 10:44:11,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:11 WrapperNode [2018-07-24 10:44:11,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 10:44:11,418 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 10:44:11,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 10:44:11,419 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 10:44:11,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:11" (1/1) ... [2018-07-24 10:44:11,437 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:11" (1/1) ... [2018-07-24 10:44:11,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 10:44:11,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 10:44:11,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 10:44:11,443 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 10:44:11,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:11" (1/1) ... [2018-07-24 10:44:11,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:11" (1/1) ... [2018-07-24 10:44:11,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:11" (1/1) ... [2018-07-24 10:44:11,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:11" (1/1) ... [2018-07-24 10:44:11,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:11" (1/1) ... [2018-07-24 10:44:11,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:11" (1/1) ... [2018-07-24 10:44:11,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:11" (1/1) ... [2018-07-24 10:44:11,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 10:44:11,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 10:44:11,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 10:44:11,462 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 10:44:11,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:11" (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 [2018-07-24 10:44:11,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 10:44:11,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 10:44:11,530 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_array_true_unreach_call_true_termination_i____VERIFIER_assert [2018-07-24 10:44:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_array_true_unreach_call_true_termination_i____VERIFIER_assert [2018-07-24 10:44:11,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 10:44:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 10:44:11,531 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 10:44:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 10:44:11,838 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 10:44:11,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 10:44:11 BoogieIcfgContainer [2018-07-24 10:44:11,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 10:44:11,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 10:44:11,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 10:44:11,845 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 10:44:11,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 10:44:11" (1/3) ... [2018-07-24 10:44:11,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@347c3f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 10:44:11, skipping insertion in model container [2018-07-24 10:44:11,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:11" (2/3) ... [2018-07-24 10:44:11,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@347c3f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 10:44:11, skipping insertion in model container [2018-07-24 10:44:11,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 10:44:11" (3/3) ... [2018-07-24 10:44:11,849 INFO L112 eAbstractionObserver]: Analyzing ICFG array_true-unreach-call_true-termination.i [2018-07-24 10:44:11,862 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 10:44:11,879 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 10:44:11,960 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 10:44:11,961 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 10:44:11,961 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 10:44:11,961 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 10:44:11,961 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 10:44:11,962 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 10:44:11,962 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 10:44:11,962 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 10:44:11,962 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 10:44:11,978 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-07-24 10:44:11,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-07-24 10:44:11,984 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:44:11,985 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:44:11,985 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_array_true_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:44:11,991 INFO L82 PathProgramCache]: Analyzing trace with hash 177171015, now seen corresponding path program 1 times [2018-07-24 10:44:11,994 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:44:12,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:12,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:44:12,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:12,047 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:44:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:12,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:44:12,111 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 10:44:12,112 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 10:44:12,112 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:44:12,116 INFO L450 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-07-24 10:44:12,129 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-07-24 10:44:12,130 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-24 10:44:12,132 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2018-07-24 10:44:12,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:44:12,153 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2018-07-24 10:44:12,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-24 10:44:12,155 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-07-24 10:44:12,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:44:12,164 INFO L225 Difference]: With dead ends: 33 [2018-07-24 10:44:12,164 INFO L226 Difference]: Without dead ends: 14 [2018-07-24 10:44:12,172 INFO L573 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 [2018-07-24 10:44:12,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-07-24 10:44:12,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-07-24 10:44:12,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-07-24 10:44:12,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2018-07-24 10:44:12,212 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 10 [2018-07-24 10:44:12,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:44:12,212 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-07-24 10:44:12,213 INFO L472 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-07-24 10:44:12,213 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-07-24 10:44:12,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-07-24 10:44:12,214 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:44:12,214 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:44:12,214 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_array_true_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:44:12,215 INFO L82 PathProgramCache]: Analyzing trace with hash 779274127, now seen corresponding path program 1 times [2018-07-24 10:44:12,215 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:44:12,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:12,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:44:12,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:12,217 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:44:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:12,420 WARN L169 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-07-24 10:44:12,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:44:12,423 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 10:44:12,424 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 10:44:12,424 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:44:12,427 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 10:44:12,428 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 10:44:12,428 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 10:44:12,429 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 3 states. [2018-07-24 10:44:12,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:44:12,568 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2018-07-24 10:44:12,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 10:44:12,569 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-07-24 10:44:12,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:44:12,570 INFO L225 Difference]: With dead ends: 23 [2018-07-24 10:44:12,570 INFO L226 Difference]: Without dead ends: 18 [2018-07-24 10:44:12,572 INFO L573 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 [2018-07-24 10:44:12,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-07-24 10:44:12,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2018-07-24 10:44:12,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-07-24 10:44:12,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-07-24 10:44:12,580 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 11 [2018-07-24 10:44:12,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:44:12,581 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-07-24 10:44:12,581 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 10:44:12,581 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-07-24 10:44:12,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-07-24 10:44:12,582 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:44:12,582 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:44:12,583 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_array_true_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:44:12,583 INFO L82 PathProgramCache]: Analyzing trace with hash 24501208, now seen corresponding path program 1 times [2018-07-24 10:44:12,583 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:44:12,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:12,585 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:44:12,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:12,585 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:44:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:12,995 WARN L169 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 13 [2018-07-24 10:44:13,062 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:44:13,063 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:44:13,065 INFO L191 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 [2018-07-24 10:44:13,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:44:13,081 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:44:13,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:13,124 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:44:13,167 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 [2018-07-24 10:44:13,169 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:13,182 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:13,183 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:7 [2018-07-24 10:44:13,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:44:13,392 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:44:13,813 WARN L169 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 12 [2018-07-24 10:44:13,818 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 [2018-07-24 10:44:13,819 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:13,821 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:13,821 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-07-24 10:44:13,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:44:13,899 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:44:13,900 INFO L191 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 [2018-07-24 10:44:13,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:44:13,926 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:44:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:13,949 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:44:13,965 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 [2018-07-24 10:44:13,966 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:13,982 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:13,983 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:7 [2018-07-24 10:44:14,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:44:14,001 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:44:14,150 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 [2018-07-24 10:44:14,151 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:14,154 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:14,154 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-07-24 10:44:14,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:44:14,171 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:44:14,172 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7, 6, 7] total 13 [2018-07-24 10:44:14,172 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:44:14,172 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 10:44:14,173 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 10:44:14,173 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-07-24 10:44:14,174 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 9 states. [2018-07-24 10:44:14,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:44:14,429 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2018-07-24 10:44:14,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-24 10:44:14,430 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2018-07-24 10:44:14,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:44:14,431 INFO L225 Difference]: With dead ends: 29 [2018-07-24 10:44:14,432 INFO L226 Difference]: Without dead ends: 23 [2018-07-24 10:44:14,433 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 49 SyntacticMatches, 6 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-07-24 10:44:14,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-07-24 10:44:14,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2018-07-24 10:44:14,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-07-24 10:44:14,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-07-24 10:44:14,439 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 15 [2018-07-24 10:44:14,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:44:14,440 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-07-24 10:44:14,440 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 10:44:14,440 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-07-24 10:44:14,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-07-24 10:44:14,441 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:44:14,441 INFO L353 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:44:14,441 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_array_true_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:44:14,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1194089567, now seen corresponding path program 2 times [2018-07-24 10:44:14,442 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:44:14,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:14,443 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:44:14,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:14,443 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:44:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:14,796 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:44:14,796 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:44:14,797 INFO L191 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 [2018-07-24 10:44:14,818 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-24 10:44:14,818 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-24 10:44:14,864 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-24 10:44:14,864 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:44:14,868 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:44:14,973 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:44:14,973 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:44:15,059 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:44:15,084 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:44:15,084 INFO L191 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 [2018-07-24 10:44:15,100 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-24 10:44:15,100 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-24 10:44:15,128 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-24 10:44:15,128 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:44:15,133 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:44:15,197 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 [2018-07-24 10:44:15,197 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:15,209 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:15,210 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2018-07-24 10:44:15,344 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:44:15,344 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:44:15,572 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 [2018-07-24 10:44:15,573 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:15,578 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. [2018-07-24 10:44:15,579 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:13 [2018-07-24 10:44:15,700 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:44:15,702 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-07-24 10:44:15,703 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 4, 4, 7] total 20 [2018-07-24 10:44:15,703 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:44:15,704 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 10:44:15,704 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 10:44:15,704 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2018-07-24 10:44:15,705 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 8 states. [2018-07-24 10:44:15,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:44:15,826 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2018-07-24 10:44:15,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 10:44:15,827 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2018-07-24 10:44:15,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:44:15,830 INFO L225 Difference]: With dead ends: 31 [2018-07-24 10:44:15,831 INFO L226 Difference]: Without dead ends: 26 [2018-07-24 10:44:15,832 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2018-07-24 10:44:15,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-07-24 10:44:15,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 20. [2018-07-24 10:44:15,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-07-24 10:44:15,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-07-24 10:44:15,838 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 19 [2018-07-24 10:44:15,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:44:15,838 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-07-24 10:44:15,839 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-24 10:44:15,839 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-07-24 10:44:15,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-07-24 10:44:15,840 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:44:15,840 INFO L353 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:44:15,840 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_array_true_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:44:15,840 INFO L82 PathProgramCache]: Analyzing trace with hash -2003436193, now seen corresponding path program 1 times [2018-07-24 10:44:15,840 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:44:15,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:15,842 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-24 10:44:15,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:15,842 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:44:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:15,941 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:44:15,942 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:44:15,942 INFO L191 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 [2018-07-24 10:44:15,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:44:15,955 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:44:15,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:15,981 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:44:16,023 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:44:16,024 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:44:16,089 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:44:16,112 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:44:16,112 INFO L191 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 [2018-07-24 10:44:16,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:44:16,130 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:44:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:16,163 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:44:16,178 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:44:16,179 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:44:16,187 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:44:16,189 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:44:16,189 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4, 4, 4] total 9 [2018-07-24 10:44:16,189 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:44:16,189 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 10:44:16,190 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 10:44:16,190 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-07-24 10:44:16,190 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 7 states. [2018-07-24 10:44:16,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:44:16,214 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2018-07-24 10:44:16,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 10:44:16,216 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-07-24 10:44:16,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:44:16,216 INFO L225 Difference]: With dead ends: 23 [2018-07-24 10:44:16,216 INFO L226 Difference]: Without dead ends: 0 [2018-07-24 10:44:16,217 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 70 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-07-24 10:44:16,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-24 10:44:16,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-24 10:44:16,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-24 10:44:16,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-24 10:44:16,218 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-07-24 10:44:16,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:44:16,218 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-24 10:44:16,218 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 10:44:16,218 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-24 10:44:16,218 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-24 10:44:16,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-24 10:44:16,341 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-07-24 10:44:16,342 INFO L424 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-07-24 10:44:16,342 INFO L424 ceAbstractionStarter]: At program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_array_true_unreach_call_true_termination_i____VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-07-24 10:44:16,342 INFO L421 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-07-24 10:44:16,342 INFO L421 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-07-24 10:44:16,342 INFO L421 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_array_true_unreach_call_true_termination_i____VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-07-24 10:44:16,342 INFO L421 ceAbstractionStarter]: For program point L4''(lines 3 8) no Hoare annotation was computed. [2018-07-24 10:44:16,342 INFO L421 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_array_true_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-07-24 10:44:16,342 INFO L424 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-07-24 10:44:16,342 INFO L424 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-07-24 10:44:16,343 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-07-24 10:44:16,343 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-07-24 10:44:16,343 INFO L421 ceAbstractionStarter]: For program point mainFINAL(lines 11 29) no Hoare annotation was computed. [2018-07-24 10:44:16,343 INFO L421 ceAbstractionStarter]: For program point L22(lines 22 23) no Hoare annotation was computed. [2018-07-24 10:44:16,343 INFO L417 ceAbstractionStarter]: At program point L19'''(lines 19 24) the Hoare annotation is: (or (and (= main_~j~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))))))) (and (<= (+ main_~j~0 1) main_~SIZE~0) (= main_~j~0 0) (<= main_~SIZE~0 1))) [2018-07-24 10:44:16,343 INFO L421 ceAbstractionStarter]: For program point mainEXIT(lines 11 29) no Hoare annotation was computed. [2018-07-24 10:44:16,343 INFO L424 ceAbstractionStarter]: At program point mainENTRY(lines 11 29) the Hoare annotation is: true [2018-07-24 10:44:16,343 INFO L421 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2018-07-24 10:44:16,344 INFO L421 ceAbstractionStarter]: For program point L19''(lines 19 24) no Hoare annotation was computed. [2018-07-24 10:44:16,344 INFO L421 ceAbstractionStarter]: For program point L19(lines 19 24) no Hoare annotation was computed. [2018-07-24 10:44:16,344 INFO L417 ceAbstractionStarter]: At program point L19''''(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))))) [2018-07-24 10:44:16,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 10:44:16 BoogieIcfgContainer [2018-07-24 10:44:16,356 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 10:44:16,357 INFO L168 Benchmark]: Toolchain (without parser) took 5188.18 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.0 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -562.7 MB). Peak memory consumption was 192.3 MB. Max. memory is 7.1 GB. [2018-07-24 10:44:16,359 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-07-24 10:44:16,359 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.44 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. [2018-07-24 10:44:16,360 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.98 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. [2018-07-24 10:44:16,361 INFO L168 Benchmark]: Boogie Preprocessor took 18.63 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. [2018-07-24 10:44:16,361 INFO L168 Benchmark]: RCFGBuilder took 378.29 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -797.7 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2018-07-24 10:44:16,362 INFO L168 Benchmark]: TraceAbstraction took 4515.21 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 224.5 MB). Peak memory consumption was 224.5 MB. Max. memory is 7.1 GB. [2018-07-24 10:44:16,366 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 246.44 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 23.98 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 18.63 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 378.29 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -797.7 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4515.21 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 224.5 MB). Peak memory consumption was 224.5 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: 19]: Loop Invariant Derived loop invariant: (j == 1 && SIZE == 1 && (\exists main_~j~0 : int :: (0 <= j && j <= 0) && menor <= array[j % 4294967296])) || ((j + 1 <= SIZE && j == 0) && SIZE <= 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 4.3s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 61 SDtfs, 21 SDslu, 110 SDs, 0 SdLazy, 93 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 236 GetRequests, 183 SyntacticMatches, 11 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 2.3s 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, 17 NumberOfFragments, 56 HoareAnnotationTreeSize, 12 FomulaSimplifications, 44 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 69 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 269 ConstructedInterpolants, 14 QuantifiedInterpolants, 18789 SizeOfPredicates, 25 NumberOfNonLiveVariables, 270 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 17 InterpolantComputations, 3 PerfectInterpolantSequences, 58/90 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-0-2018-07-24_10-44-16-380.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-0-2018-07-24_10-44-16-380.csv Received shutdown request...